diff --git a/examples/web/index.html b/examples/web/index.html
index 3000b3a8a9e36d5376f86edaa2bd2b1334d4387c..cf2eabe02ff66a3186780d071d275b84ba009b82 100644
--- a/examples/web/index.html
+++ b/examples/web/index.html
@@ -13,6 +13,7 @@
</head>
<body>
+ <div id="app"></div>
<div class="main">
<div class="side-left">
<div id="canvas-container" class="canvas-container">
diff --git a/examples/web/index.ts b/examples/web/index.ts
index 3784a69fb6c5d5aa451a19da4cf8bb0e89be84ac..366f76b8795ba67708b8697f48bba1753a381aff 100644
--- a/examples/web/index.ts
+++ b/examples/web/index.ts
@@ -1,3 +1,5 @@
+import { createApp } from "vue";
+import App from "./vue/app.vue";
import { default as _wasm, GameBoy, PadKey, PpuMode } from "./lib/boytacean.js";
import info from "./package.json";
@@ -16,9 +18,6 @@ const DISPLAY_RATIO = DISPLAY_WIDTH / DISPLAY_HEIGHT;
const SAMPLE_RATE = 2;
-const SOUND_DATA =
- "data:audio/mpeg;base64,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";
-
const BACKGROUNDS = [
"264653",
"1b1a17",
@@ -44,983 +43,1067 @@ const KEYS: Record<string, number> = {
const ROM_PATH = require("../../res/roms/20y.gb");
// Enumeration that describes the multiple pixel
-// formats and the associated byte size.
+// formats and the associated size in bytes.
enum PixelFormat {
RGB = 3,
RGBA = 4
}
-type State = {
- gameBoy: GameBoy;
- engine: string;
- logicFrequency: number;
- visualFrequency: number;
- timerFrequency: number;
- idleFrequency: number;
- canvas: HTMLCanvasElement;
- canvasScaled: HTMLCanvasElement;
- canvasCtx: CanvasRenderingContext2D;
- canvasScaledCtx: CanvasRenderingContext2D;
- image: ImageData;
- videoBuff: DataView;
- toastTimeout: number;
- paused: boolean;
- background_index: number;
- nextTickTime: number;
- fps: number;
- frameStart: number;
- frameCount: number;
- romName: string;
- romData: Uint8Array;
- romSize: number;
-};
-
-type Global = {
- modalCallback: Function;
-};
-
-const state: State = {
- gameBoy: null,
- engine: null,
- logicFrequency: LOGIC_HZ,
- visualFrequency: VISUAL_HZ,
- timerFrequency: TIMER_HZ,
- idleFrequency: IDLE_HZ,
- canvas: null,
- canvasScaled: null,
- canvasCtx: null,
- canvasScaledCtx: null,
- image: null,
- videoBuff: null,
- toastTimeout: null,
- paused: false,
- background_index: 0,
- nextTickTime: 0,
- fps: 0,
- frameStart: new Date().getTime(),
- frameCount: 0,
- romName: null,
- romData: null,
- romSize: 0
-};
-
-const global: Global = {
- modalCallback: null
-};
+class Emulator {
+ /**
+ * The Game Boy engine (probably coming from WASM) that
+ * is going to be used for the emulation.
+ */
+ private gameBoy: GameBoy | null = null;
+
+ /**
+ * The descriptive name of the engine that is currently
+ * in use to emulate the system.
+ */
+ private engine: string | null = null;
+
+ private logicFrequency: number = LOGIC_HZ;
+ private visualFrequency: number = VISUAL_HZ;
+ private timerFrequency: number = TIMER_HZ;
+ private idleFrequency: number = IDLE_HZ;
+
+ private canvas: HTMLCanvasElement | null = null;
+ private canvasScaled: HTMLCanvasElement | null = null;
+ private canvasCtx: CanvasRenderingContext2D | null = null;
+ private canvasScaledCtx: CanvasRenderingContext2D | null = null;
+ private image: ImageData | null = null;
+ private videoBuff: DataView | null = null;
+ private toastTimeout: number | null = null;
+ private paused: boolean = false;
+ private background_index: number = 0;
+ private nextTickTime: number = 0;
+ private fps: number = 0;
+ private frameStart: number = new Date().getTime();
+ private frameCount: number = 0;
+
+ private romName: string | null = null;
+ private romData: Uint8Array | null = null;
+ private romSize: number = 0;
+
+ async main() {
+ // initializes the WASM module, this is required
+ // so that the global symbols become available
+ await wasm();
+
+ // initializes the complete set of sub-systems
+ // and registers the event handlers
+ await this.buildVisuals();
+ await this.init();
+ await this.register();
+
+ // start the emulator subsystem with the initial
+ // ROM retrieved from a remote data source
+ await this.start({ loadRom: true });
+
+ // the counter that controls the overflowing cycles
+ // from tick to tick operation
+ let pending = 0;
+
+ // runs the sequence as an infinite loop, running
+ // the associated CPU cycles accordingly
+ while (true) {
+ // in case the machine is paused we must delay the execution
+ // a little bit until the paused state is recovered
+ if (this.paused) {
+ await new Promise((resolve) => {
+ setTimeout(resolve, 1000 / this.idleFrequency);
+ });
+ continue;
+ }
-const sound = ((data = SOUND_DATA, volume = 0.2) => {
- const sound = new Audio(data);
- sound.volume = volume;
- sound.muted = true;
- return sound;
-})();
+ // obtains the current time, this value is going
+ // to be used to compute the need for tick computation
+ let currentTime = new Date().getTime();
+
+ try {
+ pending = this.tick(currentTime, pending);
+ } catch (err) {
+ // sets the default error message to be displayed
+ // to the user, this value may be overridden in case
+ // a better and more explicit message can be determined
+ let message = String(err);
+
+ // verifies if the current issue is a panic one
+ // and updates the message value if that's the case
+ const messageNormalized = (err as Error).message.toLowerCase();
+ const isPanic =
+ messageNormalized.startsWith("unreachable") ||
+ messageNormalized.startsWith("recursive use of an object");
+ if (isPanic) {
+ message = "Unrecoverable error, restarting Game Boy";
+ }
-const wasm = async () => {
- await _wasm();
- GameBoy.set_panic_hook_ws();
-};
+ // displays the error information to both the end-user
+ // and the developer (for diagnostics)
+ this.showToast(message, true, 5000);
+ console.error(err);
+
+ // pauses the machine, allowing the end-user to act
+ // on the error in a proper fashion
+ this.pause();
+
+ // if we're talking about a panic, proper action must be taken
+ // which in this case it means restarting both the WASM sub
+ // system and the machine state (to be able to recover)
+ // also sets the default color on screen to indicate the issue
+ if (isPanic) {
+ await this.clearCanvas(undefined, {
+ // @ts-ignore: ts(2580)
+ image: require("./res/storm.png"),
+ imageScale: 0.2
+ });
+
+ await wasm();
+ await this.start({ restore: false });
+ }
+ }
-(window as any).panic = (message: string) => {
- console.error(message);
-};
+ // calculates the amount of time until the next draw operation
+ // this is the amount of time that is going to be pending
+ currentTime = new Date().getTime();
+ const pendingTime = Math.max(this.nextTickTime - currentTime, 0);
-const main = async () => {
- // initializes the WASM module, this is required
- // so that the global symbols become available
- await wasm();
-
- // initializes the complete set of sub-systems
- // and registers the event handlers
- await init();
- await register();
-
- // start the emulator subsystem with the initial
- // ROM retrieved from a remote data source
- await start({ loadRom: true });
-
- // the counter that controls the overflowing cycles
- // from tick to tick operation
- let pending = 0;
-
- // runs the sequence as an infinite loop, running
- // the associated CPU cycles accordingly
- while (true) {
- // in case the machin is paused we must delay the execution
- // a little bit until the paused state is recovered
- if (state.paused) {
+ // waits a little bit for the next frame to be draw,
+ // this should control the flow of render
await new Promise((resolve) => {
- setTimeout(resolve, 1000 / state.idleFrequency);
+ setTimeout(resolve, pendingTime);
});
- continue;
}
+ }
- // obtains the current time, this value is going
- // to be used to compute the need for tick computation
- let currentTime = new Date().getTime();
-
- try {
- pending = tick(currentTime, pending);
- } catch (err) {
- // sets the default error message to be displayed
- // to the user
- let message = String(err);
-
- // verifies if the current issue is a panic one
- // and updates the message value if that's the case
- const messageNormalized = (err as Error).message.toLowerCase();
- const isPanic =
- messageNormalized.startsWith("unreachable") ||
- messageNormalized.startsWith("recursive use of an object");
- if (isPanic) {
- message = "Unrecoverable error, restarting Game Boy";
- }
+ tick(currentTime: number, pending: number, cycles: number = 70224) {
+ // in case the time to draw the next frame has not been
+ // reached the flush of the "tick" logic is skipped
+ if (currentTime < this.nextTickTime) return pending;
+
+ // calculates the number of ticks that have elapsed since the
+ // last draw operation, this is critical to be able to properly
+ // operate the clock of the CPU in frame drop situations
+ if (this.nextTickTime === 0) this.nextTickTime = currentTime;
+ let ticks = Math.ceil(
+ (currentTime - this.nextTickTime) /
+ ((1 / this.visualFrequency) * 1000)
+ );
+ ticks = Math.max(ticks, 1);
- // displays the error information to both the end-user
- // and the developer (for dianostics)
- showToast(message, true, 5000);
- console.error(err);
-
- // pauses the machine, allowing the end-user to act
- // on the error in a proper fashion
- pause();
-
- // if we're talking about a panic proper action must be taken
- // which in this case it means restarting both the WASM sub
- // system and the machine state (to be able to recover)
- // also sets the default color on screen to indicate the issue
- if (isPanic) {
- await clearCanvas(undefined, {
- // @ts-ignore: ts(2580)
- image: require("./res/storm.png"),
- imageScale: 0.2
- });
+ // initializes the counter of cycles with the pending number
+ // of cycles coming from the previous tick
+ let counterCycles = pending;
+
+ let lastFrame = -1;
- await wasm();
- await start({ restore: false });
+ while (true) {
+ // limits the number of cycles to the provided
+ // cycle value passed as a parameter
+ if (counterCycles >= cycles) {
+ break;
+ }
+
+ // runs the Game Boy clock, this operations should
+ // include the advance of both the CPU and the PPU
+ counterCycles += this.gameBoy!.clock();
+
+ // in case the current PPU mode is VBlank and the
+ // frame is different from the previously rendered
+ // one then it's time to update the canvas
+ if (
+ this.gameBoy!.ppu_mode() == PpuMode.VBlank &&
+ this.gameBoy!.ppu_frame() != lastFrame
+ ) {
+ // updates the canvas object with the new
+ // visual information coming in
+ this.updateCanvas(
+ this.gameBoy!.frame_buffer_eager(),
+ PixelFormat.RGB
+ );
+ lastFrame = this.gameBoy!.ppu_frame();
}
}
- // calculates the amount of time until the next draw operation
- // this is the amount of time that is going to be pending
- currentTime = new Date().getTime();
- const pendingTime = Math.max(state.nextTickTime - currentTime, 0);
+ // increments the number of frames rendered in the current
+ // section, this value is going to be used to calculate FPS
+ this.frameCount += 1;
+
+ // in case the target number of frames for FPS control
+ // has been reached calculates the number of FPS and
+ // flushes the value to the screen
+ if (this.frameCount === this.visualFrequency * SAMPLE_RATE) {
+ const currentTime = new Date().getTime();
+ const deltaTime = (currentTime - this.frameStart) / 1000;
+ const fps = Math.round(this.frameCount / deltaTime);
+ this.setFps(fps);
+ this.frameCount = 0;
+ this.frameStart = currentTime;
+ }
- // waits a little bit for the next frame to be draw,
- // this should control the flow of render
- await new Promise((resolve) => {
- setTimeout(resolve, pendingTime);
- });
+ // updates the next update time reference to the, so that it
+ // can be used to control the game loop
+ this.nextTickTime += (1000 / this.visualFrequency) * ticks;
+
+ // calculates the new number of pending (overflow) cycles
+ // that are going to be added to the next iteration
+ return counterCycles - cycles;
}
-};
-const tick = (currentTime: number, pending: number, cycles: number = 70224) => {
- // in case the time to draw the next frame has not been
- // reached the flush of the "tick" logic is skiped
- if (currentTime < state.nextTickTime) return pending;
-
- // calculates the number of ticks that have elapsed since the
- // last draw operation, this is critical to be able to properly
- // operate the clock of the CPU in frame drop situations
- if (state.nextTickTime === 0) state.nextTickTime = currentTime;
- let ticks = Math.ceil(
- (currentTime - state.nextTickTime) /
- ((1 / state.visualFrequency) * 1000)
- );
- ticks = Math.max(ticks, 1);
-
- // initializes the counter of cycles with the pending number
- // of cycles coming from the previous tick
- let counterCycles = pending;
-
- let lastFrame = -1;
-
- while (true) {
- // limits the number of cycles to the provided
- // cycle value passed as a parameter
- if (counterCycles >= cycles) {
- break;
+ /**
+ * Starts the current machine, setting the internal structure in
+ * a proper state to start drawing and receiving input.
+ *
+ * @param options The options that are going to be used in the
+ * starting of the machine.
+ */
+ async start({
+ engine = "neo",
+ restore = true,
+ loadRom = false,
+ romPath = ROM_PATH,
+ romName = null,
+ romData = null
+ }: {
+ engine?: string | null;
+ restore?: boolean;
+ loadRom?: boolean;
+ romPath?: string;
+ romName?: string | null;
+ romData?: Uint8Array | null;
+ } = {}) {
+ // in case a remote ROM loading operation has been
+ // requested then loads it from the remote origin
+ if (loadRom) {
+ [romName, romData] = await this.fetchRom(romPath);
+ } else if (romName === null || romData === null) {
+ [romName, romData] = [this.romName, this.romData];
}
- // runs the Game Boy clock, this operations should
- // include the advance of both the CPU and the PPU
- counterCycles += state.gameBoy.clock();
-
- // in case the current PPU mode is VBlank and the
- // fram is different from the previously rendered
- // one then it's time to update the canvas
- if (
- state.gameBoy.ppu_mode() == PpuMode.VBlank &&
- state.gameBoy.ppu_frame() != lastFrame
- ) {
- // updates the canvas object with the new
- // visual information coming in
- updateCanvas(state.gameBoy.frame_buffer_eager(), PixelFormat.RGB);
- lastFrame = state.gameBoy.ppu_frame();
+ // selects the proper engine for execution
+ // and builds a new instance of it
+ switch (engine) {
+ case "neo":
+ this.gameBoy = new GameBoy();
+ break;
+
+ default:
+ if (!this.gameBoy) {
+ throw new Error("No engine requested");
+ }
+ break;
}
- }
- // increments the number of frames rendered in the current
- // section, this value is going to be used to calculate FPS
- state.frameCount += 1;
-
- // in case the target number of frames for FPS control
- // has been reached calculates the number of FPS and
- // flushes the value to the screen
- if (state.frameCount === state.visualFrequency * SAMPLE_RATE) {
- const currentTime = new Date().getTime();
- const deltaTime = (currentTime - state.frameStart) / 1000;
- const fps = Math.round(state.frameCount / deltaTime);
- setFps(fps);
- state.frameCount = 0;
- state.frameStart = currentTime;
+ // resets the Game Boy engine to restore it into
+ // a valid state ready to be used
+ this.gameBoy.reset();
+ this.gameBoy.load_boot_default();
+ const cartridge = this.gameBoy.load_rom_ws(romData!);
+
+ // updates the ROM name in case there's extra information
+ // coming from the cartridge
+ romName = cartridge.title() ? cartridge.title() : romName;
+
+ // updates the name of the currently selected engine
+ // to the one that has been provided (logic change)
+ if (engine) this.engine = engine;
+
+ // updates the complete set of global information that
+ // is going to be displayed
+ this.setEngine(this.engine!);
+ this.setRom(romName!, romData!);
+ this.setLogicFrequency(this.logicFrequency);
+ this.setFps(this.fps);
+
+ // in case the restore (state) flag is set
+ // then resumes the machine execution
+ if (restore) this.resume();
}
- // updates the next update time reference to the, so that it
- // can be used to control the game loop
- state.nextTickTime += (1000 / state.visualFrequency) * ticks;
+ async buildVisuals() {
+ /* KeyValue.create("ROM", "-", { id: "diag:rom-name" }).mount(".diag");
+ KeyValue.create("ROM Size", "-", { id: "diag:rom-size" }).mount(
+ ".diag"
+ );
+ KeyValue.create("Framerate", "-", { id: "diag:framerate" }).mount(
+ ".diag"
+ );
+ KeyValue.create("ROM Type", "-", { id: "diag:rom-type" }).mount(
+ ".diag"
+ );
+ KeySwitch.create("Tobias", ["1", "2", "3"], {
+ id: "diag:tobias"
+ }).mount(".diag");
+
+ // @ts-ignore: ts(2580)
+ Button.create("Tobias", require("./res/close.svg"))
+ .bind("click", () => alert("Hello World"))
+ .mount(".button-area");*/
+ }
- // calculates the new number of pending (overflow) cycles
- // that are going to be added to the next iteration
- return counterCycles - cycles;
-};
+ // @todo remove this method, or at least most of it
+ async register() {
+ await Promise.all([
+ this.registerDrop(),
+ this.registerKeys(),
+ this.registerButtons(),
+ this.registerKeyboard(),
+ this.registerCanvas(),
+ this.registerToast(),
+ this.registerModal()
+ ]);
+ }
-/**
- * Starts the current machine, setting the internal structure in
- * a proper state to start drwaing and receiving input.
- *
- * @param options The options that are going to be used in the
- * starting of the machine.
- */
-const start = async ({
- engine = "neo",
- restore = true,
- loadRom = false,
- romPath = ROM_PATH,
- romName = null as string,
- romData = null as Uint8Array
-} = {}) => {
- // in case a remote ROM loading operation has been
- // requested then loads it from the remote origin
- if (loadRom) {
- [romName, romData] = await fetchRom(romPath);
- } else if (romName === null || romData === null) {
- [romName, romData] = [state.romName, state.romData];
+ async init() {
+ await Promise.all([this.initBase(), this.initCanvas()]);
}
- // selects the proper engine for execution
- // and builds a new instance of it
- switch (engine) {
- case "neo":
- state.gameBoy = new GameBoy();
- break;
+ registerDrop() {
+ document.addEventListener("drop", async (event) => {
+ if (
+ !event.dataTransfer!.files ||
+ event.dataTransfer!.files.length === 0
+ ) {
+ return;
+ }
- default:
- if (!state.gameBoy) {
- throw new Error("No engine requested");
+ event.preventDefault();
+ event.stopPropagation();
+
+ const overlay = document.getElementById("overlay")!;
+ overlay.classList.remove("visible");
+
+ const file = event.dataTransfer!.files[0];
+
+ if (!file.name.endsWith(".gb")) {
+ this.showToast(
+ "This is probably not a Game Boy ROM file!",
+ true
+ );
+ return;
}
- break;
- }
- // resets the Game Boy engine to restore it into
- // a valid state ready to be used
- state.gameBoy.reset();
- state.gameBoy.load_boot_default();
- const cartridge = state.gameBoy.load_rom_ws(romData);
-
- // updates the ROM name in case there's extra information
- // comming from the cartridge
- romName = cartridge.title() ? cartridge.title() : romName;
-
- // updates the name of the currently selected engine
- // to the one that has been provided (logic change)
- if (engine) state.engine = engine;
-
- // updates the complete set of global information that
- // is going to be displayed
- setEngine(state.engine);
- setRom(romName, romData);
- setLogicFrequency(state.logicFrequency);
- setFps(state.fps);
-
- // in case the restore (state) flag is set
- // then resumes the machine execution
- if (restore) resume();
-};
+ const arrayBuffer = await file.arrayBuffer();
+ const romData = new Uint8Array(arrayBuffer);
-const register = async () => {
- await Promise.all([
- registerDrop(),
- registerKeys(),
- registerButtons(),
- registerKeyboard(),
- registerCanvas(),
- registerToast(),
- registerModal()
- ]);
-};
+ this.start({ engine: null, romName: file.name, romData: romData });
-const init = async () => {
- await Promise.all([initBase(), initCanvas()]);
-};
+ this.showToast(`Loaded ${file.name} ROM successfully!`);
+ });
+ document.addEventListener("dragover", async (event) => {
+ if (!event.dataTransfer!.items || event.dataTransfer!.items[0].type)
+ return;
-const registerDrop = () => {
- document.addEventListener("drop", async (event) => {
- if (
- !event.dataTransfer.files ||
- event.dataTransfer.files.length === 0
- ) {
- return;
- }
+ event.preventDefault();
- event.preventDefault();
- event.stopPropagation();
+ const overlay = document.getElementById("overlay")!;
+ overlay.classList.add("visible");
+ });
+ document.addEventListener("dragenter", async (event) => {
+ if (!event.dataTransfer!.items || event.dataTransfer!.items[0].type)
+ return;
+ const overlay = document.getElementById("overlay")!;
+ overlay.classList.add("visible");
+ });
+ document.addEventListener("dragleave", async (event) => {
+ if (!event.dataTransfer!.items || event.dataTransfer!.items[0].type)
+ return;
+ const overlay = document.getElementById("overlay")!;
+ overlay.classList.remove("visible");
+ });
+ }
- const overlay = document.getElementById("overlay");
- overlay.classList.remove("visible");
+ registerKeys() {
+ document.addEventListener("keydown", (event) => {
+ const keyCode = KEYS[event.key];
+ if (keyCode !== undefined) {
+ this.gameBoy!.key_press(keyCode);
+ return;
+ }
- const file = event.dataTransfer.files[0];
+ switch (event.key) {
+ case "+":
+ this.setLogicFrequency(
+ this.logicFrequency + FREQUENCY_DELTA
+ );
+ break;
+
+ case "-":
+ this.setLogicFrequency(
+ this.logicFrequency - FREQUENCY_DELTA
+ );
+ break;
+
+ case "Escape":
+ this.minimize();
+ break;
+ }
+ });
- if (!file.name.endsWith(".gb")) {
- showToast("This is probably not a Game Boy ROM file!", true);
- return;
- }
+ document.addEventListener("keyup", (event) => {
+ const keyCode = KEYS[event.key];
+ if (keyCode !== undefined) {
+ this.gameBoy!.key_lift(keyCode);
+ return;
+ }
+ });
+ }
- const arrayBuffer = await file.arrayBuffer();
- const romData = new Uint8Array(arrayBuffer);
+ registerButtons() {
+ const engine = document.getElementById("engine")!;
+ engine.addEventListener("click", () => {
+ const name = this.engine == "neo" ? "classic" : "neo";
+ this.start({ engine: name });
+ this.showToast(
+ `Game Boy running in engine "${name.toUpperCase()}" from now on!`
+ );
+ });
- start({ engine: null, romName: file.name, romData: romData });
-
- showToast(`Loaded ${file.name} ROM successfully!`);
- });
- document.addEventListener("dragover", async (event) => {
- if (!event.dataTransfer.items || event.dataTransfer.items[0].type)
- return;
-
- event.preventDefault();
-
- const overlay = document.getElementById("overlay");
- overlay.classList.add("visible");
- });
- document.addEventListener("dragenter", async (event) => {
- if (!event.dataTransfer.items || event.dataTransfer.items[0].type)
- return;
- const overlay = document.getElementById("overlay");
- overlay.classList.add("visible");
- });
- document.addEventListener("dragleave", async (event) => {
- if (!event.dataTransfer.items || event.dataTransfer.items[0].type)
- return;
- const overlay = document.getElementById("overlay");
- overlay.classList.remove("visible");
- });
-};
+ const logicFrequencyPlus = document.getElementById(
+ "logic-frequency-plus"
+ )!;
+ logicFrequencyPlus.addEventListener("click", () => {
+ this.setLogicFrequency(this.logicFrequency + FREQUENCY_DELTA);
+ });
-const registerKeys = () => {
- document.addEventListener("keydown", (event) => {
- const keyCode = KEYS[event.key];
- if (keyCode !== undefined) {
- state.gameBoy.key_press(keyCode);
- return;
- }
+ const logicFrequencyMinus = document.getElementById(
+ "logic-frequency-minus"
+ )!;
+ logicFrequencyMinus.addEventListener("click", () => {
+ this.setLogicFrequency(this.logicFrequency - FREQUENCY_DELTA);
+ });
- switch (event.key) {
- case "+":
- setLogicFrequency(state.logicFrequency + FREQUENCY_DELTA);
- break;
+ const buttonPause = document.getElementById("button-pause")!;
+ buttonPause.addEventListener("click", () => {
+ this.toggleRunning();
+ });
- case "-":
- setLogicFrequency(state.logicFrequency - FREQUENCY_DELTA);
- break;
+ const buttonReset = document.getElementById("button-reset")!;
+ buttonReset.addEventListener("click", () => {
+ this.reset();
+ });
- case "Escape":
- minimize();
- break;
- }
- });
+ const buttonBenchmark = document.getElementById("button-benchmark")!;
+ buttonBenchmark.addEventListener("click", async () => {
+ const result = await this.showModal(
+ "Are you sure you want to start a benchmark?\nThe benchmark is considered an expensive operation!",
+ "Confirm"
+ );
+ if (!result) return;
+ buttonBenchmark.classList.add("enabled");
+ this.pause();
+ try {
+ const initial = Date.now();
+ const count = 500000000;
+ for (let i = 0; i < count; i++) {
+ this.gameBoy!.clock();
+ }
+ const delta = (Date.now() - initial) / 1000;
+ const frequency_mhz = count / delta / 1000 / 1000;
+ this.showToast(
+ `Took ${delta.toFixed(
+ 2
+ )} seconds to run ${count} ticks (${frequency_mhz.toFixed(
+ 2
+ )} Mhz)!`,
+ undefined,
+ 7500
+ );
+ } finally {
+ this.resume();
+ buttonBenchmark.classList.remove("enabled");
+ }
+ });
- document.addEventListener("keyup", (event) => {
- const keyCode = KEYS[event.key];
- if (keyCode !== undefined) {
- state.gameBoy.key_lift(keyCode);
- return;
- }
- });
-};
+ const buttonFullscreen = document.getElementById("button-fullscreen")!;
+ buttonFullscreen.addEventListener("click", () => {
+ this.maximize();
+ });
-const registerButtons = () => {
- const engine = document.getElementById("engine");
- engine.addEventListener("click", () => {
- const name = state.engine == "neo" ? "classic" : "neo";
- start({ engine: name });
- showToast(
- `Game Boy running in engine "${name.toUpperCase()}" from now on!`
- );
- });
-
- const logicFrequencyPlus = document.getElementById("logic-frequency-plus");
- logicFrequencyPlus.addEventListener("click", () => {
- setLogicFrequency(state.logicFrequency + FREQUENCY_DELTA);
- });
-
- const logicFrequencyMinus = document.getElementById(
- "logic-frequency-minus"
- );
- logicFrequencyMinus.addEventListener("click", () => {
- setLogicFrequency(state.logicFrequency - FREQUENCY_DELTA);
- });
-
- const buttonPause = document.getElementById("button-pause");
- buttonPause.addEventListener("click", () => {
- toggleRunning();
- });
-
- const buttonReset = document.getElementById("button-reset");
- buttonReset.addEventListener("click", () => {
- reset();
- });
-
- const buttonBenchmark = document.getElementById("button-benchmark");
- buttonBenchmark.addEventListener("click", async () => {
- const result = await showModal(
- "Are you sure you want to start a benchmark?\nThe benchmark is considered an expensive operation!",
- "Confirm"
- );
- if (!result) return;
- buttonBenchmark.classList.add("enabled");
- pause();
- try {
- const initial = Date.now();
- const count = 500000000;
- for (let i = 0; i < count; i++) {
- state.gameBoy.clock();
+ const buttonKeyboard = document.getElementById("button-keyboard")!;
+ buttonKeyboard.addEventListener("click", () => {
+ const sectionKeyboard =
+ document.getElementById("section-keyboard")!;
+ const separatorKeyboard =
+ document.getElementById("separator-keyboard")!;
+ const sectionNarrative =
+ document.getElementById("section-narrative")!;
+ const separatorNarrative = document.getElementById(
+ "separator-narrative"
+ )!;
+ if (buttonKeyboard.classList.contains("enabled")) {
+ sectionKeyboard.style.display = "none";
+ separatorKeyboard.style.display = "none";
+ sectionNarrative.style.display = "block";
+ separatorNarrative.style.display = "block";
+ buttonKeyboard.classList.remove("enabled");
+ } else {
+ sectionKeyboard.style.display = "block";
+ separatorKeyboard.style.display = "block";
+ sectionNarrative.style.display = "none";
+ separatorNarrative.style.display = "none";
+ buttonKeyboard.classList.add("enabled");
}
- const delta = (Date.now() - initial) / 1000;
- const frequency_mhz = count / delta / 1000 / 1000;
- showToast(
- `Took ${delta.toFixed(
- 2
- )} seconds to run ${count} ticks (${frequency_mhz.toFixed(
- 2
- )} Mhz)!`,
- undefined,
- 7500
- );
- } finally {
- resume();
- buttonBenchmark.classList.remove("enabled");
- }
- });
-
- const buttonFullscreen = document.getElementById("button-fullscreen");
- buttonFullscreen.addEventListener("click", () => {
- maximize();
- });
-
- const buttonKeyboard = document.getElementById("button-keyboard");
- buttonKeyboard.addEventListener("click", () => {
- const sectionKeyboard = document.getElementById("section-keyboard");
- const separatorKeyboard = document.getElementById("separator-keyboard");
- const sectionNarrative = document.getElementById("section-narrative");
- const separatorNarrative = document.getElementById(
- "separator-narrative"
- );
- if (buttonKeyboard.classList.contains("enabled")) {
- sectionKeyboard.style.display = "none";
- separatorKeyboard.style.display = "none";
- sectionNarrative.style.display = "block";
- separatorNarrative.style.display = "block";
- buttonKeyboard.classList.remove("enabled");
- } else {
- sectionKeyboard.style.display = "block";
- separatorKeyboard.style.display = "block";
- sectionNarrative.style.display = "none";
- separatorNarrative.style.display = "none";
- buttonKeyboard.classList.add("enabled");
- }
- });
-
- const buttonDebug = document.getElementById("button-debug");
- buttonDebug.addEventListener("click", () => {
- const sectionDebug = document.getElementById("section-debug");
- const separatorDebug = document.getElementById("separator-debug");
- const sectionNarrative = document.getElementById("section-narrative");
- const separatorNarrative = document.getElementById(
- "separator-narrative"
- );
- if (buttonDebug.classList.contains("enabled")) {
- sectionDebug.style.display = "none";
- separatorDebug.style.display = "none";
- sectionNarrative.style.display = "block";
- separatorNarrative.style.display = "block";
- buttonDebug.classList.remove("enabled");
- } else {
- sectionDebug.style.display = "block";
- separatorDebug.style.display = "block";
- sectionNarrative.style.display = "none";
- separatorNarrative.style.display = "none";
- buttonDebug.classList.add("enabled");
-
- const canvasTiles = document.getElementById(
- "canvas-tiles"
- ) as HTMLCanvasElement;
- const canvasTilesCtx = canvasTiles.getContext("2d");
-
- const canvasImage = canvasTilesCtx.createImageData(
- canvasTiles.width,
- canvasTiles.height
- );
- const videoBuff = new DataView(canvasImage.data.buffer);
-
- /**
- * Draws the tile at the given index to the proper
- * vertical offset in the given context and buffer.
- *
- * @param index The index of the sprite to be drawn.
- * @param format The pixel format of the sprite.
- */
- const drawTile = (
- index: number,
- context: CanvasRenderingContext2D,
- buffer: DataView,
- format: PixelFormat = PixelFormat.RGB
- ) => {
- const pixels = state.gameBoy.get_tile_buffer(index);
- const line = Math.floor(index / 16);
- const column = index % 16;
- let offset =
- (line * canvasTiles.width * 8 + column * 8) *
- PixelFormat.RGBA;
- let counter = 0;
- for (let index = 0; index < pixels.length; index += format) {
- const color =
- (pixels[index] << 24) |
- (pixels[index + 1] << 16) |
- (pixels[index + 2] << 8) |
- (format == PixelFormat.RGBA ? pixels[index + 3] : 0xff);
- buffer.setUint32(offset, color);
-
- counter++;
- if (counter == 8) {
- counter = 0;
- offset += (canvasTiles.width - 7) * PixelFormat.RGBA;
- } else {
- offset += PixelFormat.RGBA;
+ });
+
+ const buttonDebug = document.getElementById("button-debug")!;
+ buttonDebug.addEventListener("click", () => {
+ const sectionDebug = document.getElementById("section-debug")!;
+ const separatorDebug = document.getElementById("separator-debug")!;
+ const sectionNarrative =
+ document.getElementById("section-narrative")!;
+ const separatorNarrative = document.getElementById(
+ "separator-narrative"
+ )!;
+ if (buttonDebug.classList.contains("enabled")) {
+ sectionDebug.style.display = "none";
+ separatorDebug.style.display = "none";
+ sectionNarrative.style.display = "block";
+ separatorNarrative.style.display = "block";
+ buttonDebug.classList.remove("enabled");
+ } else {
+ sectionDebug.style.display = "block";
+ separatorDebug.style.display = "block";
+ sectionNarrative.style.display = "none";
+ separatorNarrative.style.display = "none";
+ buttonDebug.classList.add("enabled");
+
+ const canvasTiles = document.getElementById(
+ "canvas-tiles"
+ ) as HTMLCanvasElement;
+ const canvasTilesCtx = canvasTiles.getContext("2d")!;
+ canvasTilesCtx.imageSmoothingEnabled = false;
+
+ const canvasImage = canvasTilesCtx.createImageData(
+ canvasTiles.width,
+ canvasTiles.height
+ );
+ const videoBuff = new DataView(canvasImage.data.buffer);
+
+ /**
+ * Draws the tile at the given index to the proper
+ * vertical offset in the given context and buffer.
+ *
+ * @param index The index of the sprite to be drawn.
+ * @param format The pixel format of the sprite.
+ */
+ const drawTile = (
+ index: number,
+ context: CanvasRenderingContext2D,
+ buffer: DataView,
+ format: PixelFormat = PixelFormat.RGB
+ ) => {
+ const pixels = this.gameBoy!.get_tile_buffer(index);
+ const line = Math.floor(index / 16);
+ const column = index % 16;
+ let offset =
+ (line * canvasTiles.width * 8 + column * 8) *
+ PixelFormat.RGBA;
+ let counter = 0;
+ for (
+ let index = 0;
+ index < pixels.length;
+ index += format
+ ) {
+ const color =
+ (pixels[index] << 24) |
+ (pixels[index + 1] << 16) |
+ (pixels[index + 2] << 8) |
+ (format == PixelFormat.RGBA
+ ? pixels[index + 3]
+ : 0xff);
+ buffer.setUint32(offset, color);
+
+ counter++;
+ if (counter == 8) {
+ counter = 0;
+ offset +=
+ (canvasTiles.width - 7) * PixelFormat.RGBA;
+ } else {
+ offset += PixelFormat.RGBA;
+ }
}
+ context.putImageData(canvasImage, 0, 0);
+ };
+
+ for (let index = 0; index < 384; index++) {
+ drawTile(index, canvasTilesCtx, videoBuff);
}
- context.putImageData(canvasImage, 0, 0);
- };
- for (let index = 0; index < 384; index++) {
- drawTile(index, canvasTilesCtx, videoBuff);
+ const vram = this.gameBoy!.vram_eager();
+ const step = 16;
+ for (let index = 0; index < vram.length; index += step) {
+ let line = `${(index + 0x8000)
+ .toString(16)
+ .padStart(4, "0")}`;
+ for (let j = 0; j < step; j++) {
+ line += ` ${vram[index + j]
+ .toString(16)
+ .padStart(2, "0")}`;
+ }
+ console.info(line);
+ }
}
+ });
- const vram = state.gameBoy.vram_eager();
- const step = 16;
- for (let index = 0; index < vram.length; index += step) {
- let line = `${(index + 0x8000).toString(16).padStart(4, "0")}`;
- for (let j = 0; j < step; j++) {
- line += ` ${vram[index + j].toString(16).padStart(2, "0")}`;
- }
- console.info(line);
+ const buttonInformation =
+ document.getElementById("button-information")!;
+ buttonInformation.addEventListener("click", () => {
+ const sectionDiag = document.getElementById("section-diag")!;
+ const separatorDiag = document.getElementById("separator-diag")!;
+ if (buttonInformation.classList.contains("enabled")) {
+ sectionDiag.style.display = "none";
+ separatorDiag.style.display = "none";
+ buttonInformation.classList.remove("enabled");
+ } else {
+ sectionDiag.style.display = "block";
+ separatorDiag.style.display = "block";
+ buttonInformation.classList.add("enabled");
}
- }
- });
-
- const buttonInformation = document.getElementById("button-information");
- buttonInformation.addEventListener("click", () => {
- const sectionDiag = document.getElementById("section-diag");
- const separatorDiag = document.getElementById("separator-diag");
- if (buttonInformation.classList.contains("enabled")) {
- sectionDiag.style.display = "none";
- separatorDiag.style.display = "none";
- buttonInformation.classList.remove("enabled");
- } else {
- sectionDiag.style.display = "block";
- separatorDiag.style.display = "block";
- buttonInformation.classList.add("enabled");
- }
- });
-
- const buttonTheme = document.getElementById("button-theme");
- buttonTheme.addEventListener("click", () => {
- state.background_index =
- (state.background_index + 1) % BACKGROUNDS.length;
- const background = BACKGROUNDS[state.background_index];
- setBackground(background);
- });
-
- const buttonUploadFile = document.getElementById(
- "button-upload-file"
- ) as HTMLInputElement;
- buttonUploadFile.addEventListener("change", async () => {
- if (!buttonUploadFile.files || buttonUploadFile.files.length === 0) {
- return;
- }
+ });
- const file = buttonUploadFile.files[0];
+ const buttonTheme = document.getElementById("button-theme")!;
+ buttonTheme.addEventListener("click", () => {
+ this.background_index =
+ (this.background_index + 1) % BACKGROUNDS.length;
+ const background = BACKGROUNDS[this.background_index];
+ this.setBackground(background);
+ });
- const arrayBuffer = await file.arrayBuffer();
- const romData = new Uint8Array(arrayBuffer);
+ const buttonUploadFile = document.getElementById(
+ "button-upload-file"
+ ) as HTMLInputElement;
+ buttonUploadFile.addEventListener("change", async () => {
+ if (
+ !buttonUploadFile.files ||
+ buttonUploadFile.files.length === 0
+ ) {
+ return;
+ }
- buttonUploadFile.value = "";
+ const file = buttonUploadFile.files[0];
- start({ engine: null, romName: file.name, romData: romData });
+ const arrayBuffer = await file.arrayBuffer();
+ const romData = new Uint8Array(arrayBuffer);
- showToast(`Loaded ${file.name} ROM successfully!`);
- });
-};
+ buttonUploadFile.value = "";
-const registerKeyboard = () => {
- const keyboard = document.getElementById("keyboard");
- const keys = keyboard.getElementsByClassName("key");
+ this.start({ engine: null, romName: file.name, romData: romData });
- keyboard.addEventListener("touchstart", function (event) {
- event.preventDefault();
- event.stopPropagation();
- });
+ this.showToast(`Loaded ${file.name} ROM successfully!`);
+ });
+ }
- keyboard.addEventListener("touchend", function (event) {
- event.preventDefault();
- event.stopPropagation();
- });
+ // @todo this should be converted into a component
+ registerKeyboard() {
+ const keyboard = document.getElementById("keyboard")!;
+ const keys = keyboard.getElementsByClassName("key");
- Array.prototype.forEach.call(keys, (k: Element) => {
- k.addEventListener("mousedown", function (event) {
- const keyCode = KEYS[this.textContent.toLowerCase()];
- //state.gameBoy.key_press_ws(keyCode); @todo
+ keyboard.addEventListener("touchstart", function (event) {
event.preventDefault();
event.stopPropagation();
});
- k.addEventListener("touchstart", function (event) {
- const keyCode = KEYS[this.textContent.toLowerCase()];
- //state.gameBoy.key_press_ws(keyCode); @todo
+ keyboard.addEventListener("touchend", function (event) {
event.preventDefault();
event.stopPropagation();
});
- k.addEventListener("mouseup", function (event) {
- const keyCode = KEYS[this.textContent.toLowerCase()];
- //state.gameBoy.key_lift_ws(keyCode); @todo
- event.preventDefault();
- event.stopPropagation();
+ Array.prototype.forEach.call(keys, (k: Element) => {
+ k.addEventListener(
+ "mousedown",
+ function (this: HTMLElement, event) {
+ const keyCode = KEYS[this.textContent!.toLowerCase()];
+ //this.gameBoy.key_press_ws(keyCode); @todo
+ event.preventDefault();
+ event.stopPropagation();
+ }
+ );
+
+ k.addEventListener(
+ "touchstart",
+ function (this: HTMLElement, event) {
+ const keyCode = KEYS[this.textContent!.toLowerCase()];
+ //this.gameBoy.key_press_ws(keyCode); @todo
+ event.preventDefault();
+ event.stopPropagation();
+ }
+ );
+
+ k.addEventListener("mouseup", function (this: HTMLElement, event) {
+ const keyCode = KEYS[this.textContent!.toLowerCase()];
+ //this.gameBoy.key_lift_ws(keyCode); @todo
+ event.preventDefault();
+ event.stopPropagation();
+ });
+
+ k.addEventListener("touchend", function (this: HTMLElement, event) {
+ const keyCode = KEYS[this.textContent!.toLowerCase()];
+ //this.gameBoy.key_lift_ws(keyCode); @todo
+ event.preventDefault();
+ event.stopPropagation();
+ });
});
+ }
- k.addEventListener("touchend", function (event) {
- const keyCode = KEYS[this.textContent.toLowerCase()];
- //state.gameBoy.key_lift_ws(keyCode); @todo
- event.preventDefault();
- event.stopPropagation();
+ registerCanvas() {
+ const canvasClose = document.getElementById("canvas-close")!;
+ canvasClose.addEventListener("click", () => {
+ this.minimize();
});
- });
-};
+ }
-const registerCanvas = () => {
- const canvasClose = document.getElementById("canvas-close");
- canvasClose.addEventListener("click", () => {
- minimize();
- });
-};
+ registerToast() {
+ const toast = document.getElementById("toast")!;
+ toast.addEventListener("click", () => {
+ toast.classList.remove("visible");
+ });
+ }
-const registerToast = () => {
- const toast = document.getElementById("toast");
- toast.addEventListener("click", () => {
- toast.classList.remove("visible");
- });
-};
+ registerModal() {
+ const modalClose = document.getElementById("modal-close")!;
+ modalClose.addEventListener("click", () => {
+ this.hideModal(false);
+ });
-const registerModal = () => {
- const modalClose = document.getElementById("modal-close");
- modalClose.addEventListener("click", () => {
- hideModal(false);
- });
-
- const modalCancel = document.getElementById("modal-cancel");
- modalCancel.addEventListener("click", () => {
- hideModal(false);
- });
-
- const modalConfirm = document.getElementById("modal-confirm");
- modalConfirm.addEventListener("click", () => {
- hideModal(true);
- });
-
- document.addEventListener("keydown", (event) => {
- if (event.key === "Escape") {
- hideModal(false);
- }
- });
-};
+ const modalCancel = document.getElementById("modal-cancel")!;
+ modalCancel.addEventListener("click", () => {
+ this.hideModal(false);
+ });
-const initBase = async () => {
- const background = BACKGROUNDS[state.background_index];
- setBackground(background);
- setVersion(info.version);
-};
+ const modalConfirm = document.getElementById("modal-confirm")!;
+ modalConfirm.addEventListener("click", () => {
+ this.hideModal(true);
+ });
-const initCanvas = async () => {
- // initializes the off-screen canvas that is going to be
- // used in the drawing process
- state.canvas = document.createElement("canvas");
- state.canvas.width = DISPLAY_WIDTH;
- state.canvas.height = DISPLAY_HEIGHT;
- state.canvasCtx = state.canvas.getContext("2d");
-
- state.canvasScaled = document.getElementById(
- "engine-canvas"
- ) as HTMLCanvasElement;
- state.canvasScaled.width =
- state.canvasScaled.width * window.devicePixelRatio;
- state.canvasScaled.height =
- state.canvasScaled.height * window.devicePixelRatio;
- state.canvasScaledCtx = state.canvasScaled.getContext("2d");
-
- state.canvasScaledCtx.scale(
- state.canvasScaled.width / state.canvas.width,
- state.canvasScaled.height / state.canvas.height
- );
- state.canvasScaledCtx.imageSmoothingEnabled = false;
-
- state.image = state.canvasCtx.createImageData(
- state.canvas.width,
- state.canvas.height
- );
- state.videoBuff = new DataView(state.image.data.buffer);
-};
+ document.addEventListener("keydown", (event) => {
+ if (event.key === "Escape") {
+ this.hideModal(false);
+ }
+ });
+ }
-const updateCanvas = (
- pixels: Uint8Array,
- format: PixelFormat = PixelFormat.RGB
-) => {
- let offset = 0;
- for (let index = 0; index < pixels.length; index += format) {
- const color =
- (pixels[index] << 24) |
- (pixels[index + 1] << 16) |
- (pixels[index + 2] << 8) |
- (format == PixelFormat.RGBA ? pixels[index + 3] : 0xff);
- state.videoBuff.setUint32(offset, color);
- offset += PixelFormat.RGBA;
+ async initBase() {
+ const background = BACKGROUNDS[this.background_index];
+ this.setBackground(background);
+ this.setVersion(info.version);
}
- state.canvasCtx.putImageData(state.image, 0, 0);
- state.canvasScaledCtx.drawImage(state.canvas, 0, 0);
-};
-const clearCanvas = async (
- color = PIXEL_UNSET_COLOR,
- { image = null as string, imageScale = 1 } = {}
-) => {
- state.canvasScaledCtx.fillStyle = `#${color.toString(16).toUpperCase()}`;
- state.canvasScaledCtx.fillRect(
- 0,
- 0,
- state.canvasScaled.width,
- state.canvasScaled.height
- );
-
- // in case an image was requested then uses that to load
- // an image at the center of the screen properly scaled
- if (image) {
- const img = await new Promise<HTMLImageElement>((resolve) => {
- const img = new Image();
- img.onload = () => {
- resolve(img);
- };
- img.src = image;
- });
- const [imgWidth, imgHeight] = [
- img.width * imageScale * window.devicePixelRatio,
- img.height * imageScale * window.devicePixelRatio
- ];
- const [x0, y0] = [
- state.canvasScaled.width / 2 - imgWidth / 2,
- state.canvasScaled.height / 2 - imgHeight / 2
- ];
- state.canvasScaledCtx.setTransform(1, 0, 0, 1, 0, 0);
- try {
- state.canvasScaledCtx.drawImage(img, x0, y0, imgWidth, imgHeight);
- } finally {
- state.canvasScaledCtx.scale(
- state.canvasScaled.width / state.canvas.width,
- state.canvasScaled.height / state.canvas.height
- );
+ async initCanvas() {
+ // initializes the off-screen canvas that is going to be
+ // used in the drawing process
+ this.canvas = document.createElement("canvas");
+ this.canvas.width = DISPLAY_WIDTH;
+ this.canvas.height = DISPLAY_HEIGHT;
+ this.canvasCtx = this.canvas.getContext("2d")!;
+
+ this.canvasScaled = document.getElementById(
+ "engine-canvas"
+ ) as HTMLCanvasElement;
+ this.canvasScaled.width =
+ this.canvasScaled.width * window.devicePixelRatio;
+ this.canvasScaled.height =
+ this.canvasScaled.height * window.devicePixelRatio;
+ this.canvasScaledCtx = this.canvasScaled.getContext("2d")!;
+
+ this.canvasScaledCtx.scale(
+ this.canvasScaled.width / this.canvas.width,
+ this.canvasScaled.height / this.canvas.height
+ );
+ this.canvasScaledCtx.imageSmoothingEnabled = false;
+
+ this.image = this.canvasCtx.createImageData(
+ this.canvas.width,
+ this.canvas.height
+ );
+ this.videoBuff = new DataView(this.image.data.buffer);
+ }
+
+ updateCanvas(pixels: Uint8Array, format: PixelFormat = PixelFormat.RGB) {
+ let offset = 0;
+ for (let index = 0; index < pixels.length; index += format) {
+ const color =
+ (pixels[index] << 24) |
+ (pixels[index + 1] << 16) |
+ (pixels[index + 2] << 8) |
+ (format == PixelFormat.RGBA ? pixels[index + 3] : 0xff);
+ this.videoBuff!.setUint32(offset, color);
+ offset += PixelFormat.RGBA;
}
+ this.canvasCtx!.putImageData(this.image!, 0, 0);
+ this.canvasScaledCtx!.drawImage(this.canvas!, 0, 0);
}
-};
-const showToast = async (message: string, error = false, timeout = 3500) => {
- const toast = document.getElementById("toast");
- toast.classList.remove("error");
- if (error) toast.classList.add("error");
- toast.classList.add("visible");
- toast.textContent = message;
- if (state.toastTimeout) clearTimeout(state.toastTimeout);
- state.toastTimeout = setTimeout(() => {
- toast.classList.remove("visible");
- state.toastTimeout = null;
- }, timeout);
-};
+ async clearCanvas(
+ color = PIXEL_UNSET_COLOR,
+ {
+ image = null,
+ imageScale = 1
+ }: { image?: string | null; imageScale?: number } = {}
+ ) {
+ this.canvasScaledCtx!.fillStyle = `#${color
+ .toString(16)
+ .toUpperCase()}`;
+ this.canvasScaledCtx!.fillRect(
+ 0,
+ 0,
+ this.canvasScaled!.width,
+ this.canvasScaled!.height
+ );
-const showModal = async (
- message: string,
- title = "Alert"
-): Promise<boolean> => {
- const modalContainer = document.getElementById("modal-container");
- const modalTitle = document.getElementById("modal-title");
- const modalText = document.getElementById("modal-text");
- modalContainer.classList.add("visible");
- modalTitle.textContent = title;
- modalText.innerHTML = message.replace(/\n/g, "<br/>");
- const result = (await new Promise((resolve) => {
- global.modalCallback = resolve;
- })) as boolean;
- return result;
-};
+ // in case an image was requested then uses that to load
+ // an image at the center of the screen properly scaled
+ if (image) {
+ const img = await new Promise<HTMLImageElement>((resolve) => {
+ const img = new Image();
+ img.onload = () => {
+ resolve(img);
+ };
+ img.src = image;
+ });
+ const [imgWidth, imgHeight] = [
+ img.width * imageScale * window.devicePixelRatio,
+ img.height * imageScale * window.devicePixelRatio
+ ];
+ const [x0, y0] = [
+ this.canvasScaled!.width / 2 - imgWidth / 2,
+ this.canvasScaled!.height / 2 - imgHeight / 2
+ ];
+ this.canvasScaledCtx!.setTransform(1, 0, 0, 1, 0, 0);
+ try {
+ this.canvasScaledCtx!.drawImage(
+ img,
+ x0,
+ y0,
+ imgWidth,
+ imgHeight
+ );
+ } finally {
+ this.canvasScaledCtx!.scale(
+ this.canvasScaled!.width / this.canvas!.width,
+ this.canvasScaled!.height / this.canvas!.height
+ );
+ }
+ }
+ }
-const hideModal = async (result = true) => {
- const modalContainer = document.getElementById("modal-container");
- modalContainer.classList.remove("visible");
- if (global.modalCallback) global.modalCallback(result);
- global.modalCallback = null;
-};
+ async showToast(message: string, error = false, timeout = 3500) {
+ const toast = document.getElementById("toast")!;
+ toast.classList.remove("error");
+ if (error) toast.classList.add("error");
+ toast.classList.add("visible");
+ toast.textContent = message;
+ if (this.toastTimeout) clearTimeout(this.toastTimeout);
+ this.toastTimeout = setTimeout(() => {
+ toast.classList.remove("visible");
+ this.toastTimeout = null;
+ }, timeout);
+ }
-const setVersion = (value: string) => {
- document.getElementById("version").textContent = value;
-};
+ async showModal(message: string, title = "Alert"): Promise<boolean> {
+ const modalContainer = document.getElementById("modal-container")!;
+ const modalTitle = document.getElementById("modal-title")!;
+ const modalText = document.getElementById("modal-text")!;
+ modalContainer.classList.add("visible");
+ modalTitle.textContent = title;
+ modalText.innerHTML = message.replace(/\n/g, "<br/>");
+ const result = (await new Promise((resolve) => {
+ global.modalCallback = resolve;
+ })) as boolean;
+ return result;
+ }
-const setEngine = (name: string, upper = true) => {
- name = upper ? name.toUpperCase() : name;
- document.getElementById("engine").textContent = name;
-};
+ async hideModal(result = true) {
+ const modalContainer = document.getElementById("modal-container")!;
+ modalContainer.classList.remove("visible");
+ if (global.modalCallback) global.modalCallback(result);
+ global.modalCallback = null;
+ }
-const setRom = (name: string, data: Uint8Array) => {
- state.romName = name;
- state.romData = data;
- state.romSize = data.length;
- document.getElementById("rom-name").textContent = name;
- document.getElementById("rom-size").textContent = String(data.length);
-};
+ setVersion(value: string) {
+ document.getElementById("version")!.textContent = value;
+ }
-const setLogicFrequency = (value: number) => {
- if (value < 0) showToast("Invalid frequency value!", true);
- value = Math.max(value, 0);
- state.logicFrequency = value;
- document.getElementById("logic-frequency").textContent = String(value);
-};
+ setEngine(name: string, upper = true) {
+ name = upper ? name.toUpperCase() : name;
+ document.getElementById("engine")!.textContent = name;
+ }
-const setFps = (value: number) => {
- if (value < 0) showToast("Invalid FPS value!", true);
- value = Math.max(value, 0);
- state.fps = value;
- document.getElementById("fps-count").textContent = String(value);
-};
+ setRom(name: string, data: Uint8Array) {
+ this.romName = name;
+ this.romData = data;
+ this.romSize = data.length;
+ //@todo update this one
+ //Component.get<KeyValue>("diag:rom-name").value = name;
+ //Component.get<KeyValue>("diag:rom-size").value = `${data.length} bytes`;
+ }
-const setBackground = (value: string) => {
- document.body.style.backgroundColor = `#${value}`;
- document.getElementById(
- "footer-background"
- ).style.backgroundColor = `#${value}f2`;
-};
+ setLogicFrequency(value: number) {
+ if (value < 0) this.showToast("Invalid frequency value!", true);
+ value = Math.max(value, 0);
+ this.logicFrequency = value;
+ document.getElementById("logic-frequency")!.textContent = String(value);
+ }
-const toggleRunning = () => {
- if (state.paused) {
- resume();
- } else {
- pause();
+ setFps(value: number) {
+ if (value < 0) this.showToast("Invalid FPS value!", true);
+ value = Math.max(value, 0);
+ this.fps = value;
+ //@todo
+ //Component.get<KeyValue>("diag:framerate").value = `${value} FPS`;
}
-};
-const pause = () => {
- state.paused = true;
- const buttonPause = document.getElementById("button-pause");
- const img = buttonPause.getElementsByTagName("img")[0];
- const span = buttonPause.getElementsByTagName("span")[0];
- buttonPause.classList.add("enabled");
- // @ts-ignore: ts(2580)
- img.src = require("./res/play.svg");
- span.textContent = "Resume";
-};
+ setBackground(value: string) {
+ document.body.style.backgroundColor = `#${value}`;
+ document.getElementById(
+ "footer-background"
+ )!.style.backgroundColor = `#${value}f2`;
+ }
-const resume = () => {
- state.paused = false;
- state.nextTickTime = new Date().getTime();
- const buttonPause = document.getElementById("button-pause");
- const img = buttonPause.getElementsByTagName("img")[0];
- const span = buttonPause.getElementsByTagName("span")[0];
- buttonPause.classList.remove("enabled");
- // @ts-ignore: ts(2580)
- img.src = require("./res/pause.svg");
- span.textContent = "Pause";
-};
+ toggleRunning() {
+ if (this.paused) {
+ this.resume();
+ } else {
+ this.pause();
+ }
+ }
-const toggleWindow = () => {
- maximize();
-};
+ pause() {
+ this.paused = true;
+ const buttonPause = document.getElementById("button-pause")!;
+ const img = buttonPause.getElementsByTagName("img")[0];
+ const span = buttonPause.getElementsByTagName("span")[0];
+ buttonPause.classList.add("enabled");
+ // @ts-ignore: ts(2580)
+ img.src = require("./res/play.svg");
+ span.textContent = "Resume";
+ }
+
+ resume() {
+ this.paused = false;
+ this.nextTickTime = new Date().getTime();
+ const buttonPause = document.getElementById("button-pause")!;
+ const img = buttonPause.getElementsByTagName("img")[0];
+ const span = buttonPause.getElementsByTagName("span")[0];
+ buttonPause.classList.remove("enabled");
+ // @ts-ignore: ts(2580)
+ img.src = require("./res/pause.svg");
+ span.textContent = "Pause";
+ }
+
+ /**
+ * Resets the emulator machine to the start state and loads
+ * the ROM that is currently set in the emulator.
+ */
+ reset() {
+ this.start({ engine: null });
+ }
+
+ toggleWindow() {
+ this.maximize();
+ }
+
+ /**
+ * Maximizes the emulator's viewport taking up all the available
+ * window space. This method is responsible for keeping the aspect
+ * ratio of the emulator canvas according to the width/height ratio.
+ */
+ maximize() {
+ const canvasContainer = document.getElementById("canvas-container")!;
+ canvasContainer.classList.add("fullscreen");
+
+ window.addEventListener("resize", this.crop);
+
+ this.crop();
+ }
-const maximize = () => {
- const canvasContainer = document.getElementById("canvas-container");
- canvasContainer.classList.add("fullscreen");
+ /**
+ * Restore the emulator's viewport to the minimal size, should make all
+ * the other emulator's meta-information (info, buttons, etc.) visible.
+ */
+ minimize() {
+ const canvasContainer = document.getElementById("canvas-container")!;
+ const engineCanvas = document.getElementById("engine-canvas")!;
+ canvasContainer.classList.remove("fullscreen");
+ engineCanvas.style.width = "";
+ engineCanvas.style.height = "";
+ window.removeEventListener("resize", this.crop);
+ }
- window.addEventListener("resize", crop);
+ crop() {
+ // @todo let's make this more flexible
+ const engineCanvas = document.getElementById("engine-canvas")!;
+
+ // calculates the window ratio as this is fundamental to
+ // determine the proper way to crop the fullscreen
+ const windowRatio = window.innerWidth / window.innerHeight;
+
+ // in case the window is wider (more horizontal than the base ratio)
+ // this means that we must crop horizontally
+ if (windowRatio > DISPLAY_RATIO) {
+ engineCanvas.style.width = `${
+ window.innerWidth * (DISPLAY_RATIO / windowRatio)
+ }px`;
+ engineCanvas.style.height = `${window.innerHeight}px`;
+ } else {
+ engineCanvas.style.width = `${window.innerWidth}px`;
+ engineCanvas.style.height = `${
+ window.innerHeight * (windowRatio / DISPLAY_RATIO)
+ }px`;
+ }
+ }
- crop();
+ async fetchRom(romPath: string): Promise<[string, Uint8Array]> {
+ // extracts the name of the ROM from the provided
+ // path by splitting its structure
+ const romPathS = romPath.split(/\//g);
+ let romName = romPathS[romPathS.length - 1].split("?")[0];
+ const romNameS = romName.split(/\./g);
+ romName = `${romNameS[0]}.${romNameS[romNameS.length - 1]}`;
+
+ // loads the ROM data and converts it into the
+ // target byte array buffer (to be used by WASM)
+ const response = await fetch(ROM_PATH);
+ const blob = await response.blob();
+ const arrayBuffer = await blob.arrayBuffer();
+ const romData = new Uint8Array(arrayBuffer);
+
+ // returns both the name of the ROM and the data
+ // contents as a byte array
+ return [romName, romData];
+ }
+}
+
+type Global = {
+ modalCallback: Function | null;
};
-const minimize = () => {
- const canvasContainer = document.getElementById("canvas-container");
- const engineCanvas = document.getElementById("engine-canvas");
- canvasContainer.classList.remove("fullscreen");
- engineCanvas.style.width = null;
- engineCanvas.style.height = null;
- window.removeEventListener("resize", crop);
+//@todo check if this is really required
+const global: Global = {
+ modalCallback: null
};
-const crop = () => {
- const engineCanvas = document.getElementById("engine-canvas");
-
- // calculates the window ratio as this is fundamental to
- // determine the proper way to crop the fulscreen
- const windowRatio = window.innerWidth / window.innerHeight;
-
- // in case the window is wider (more horizontal than the base ratio)
- // this means that we must crop horizontaly
- if (windowRatio > DISPLAY_RATIO) {
- engineCanvas.style.width = `${
- window.innerWidth * (DISPLAY_RATIO / windowRatio)
- }px`;
- engineCanvas.style.height = `${window.innerHeight}px`;
- } else {
- engineCanvas.style.width = `${window.innerWidth}px`;
- engineCanvas.style.height = `${
- window.innerHeight * (windowRatio / DISPLAY_RATIO)
- }px`;
+declare global {
+ interface Window {
+ panic: (message: string) => void;
}
-};
+}
-const reset = () => {
- start({ engine: null });
+window.panic = (message: string) => {
+ console.error(message);
};
-const fetchRom = async (romPath: string): Promise<[string, Uint8Array]> => {
- // extracts the name of the ROM from the provided
- // path by splitting its structure
- const romPathS = romPath.split(/\//g);
- let romName = romPathS[romPathS.length - 1].split("?")[0];
- const romNameS = romName.split(/\./g);
- romName = `${romNameS[0]}.${romNameS[romNameS.length - 1]}`;
-
- // loads the ROM data and converts it into the
- // target byte array buffer (to be used by WASM)
- const response = await fetch(ROM_PATH);
- const blob = await response.blob();
- const arrayBuffer = await blob.arrayBuffer();
- const romData = new Uint8Array(arrayBuffer);
-
- // returns both the name of the ROM and the data
- // contents as a byte array
- return [romName, romData];
+const wasm = async () => {
+ await _wasm();
+ GameBoy.set_panic_hook_ws();
};
(async () => {
- await main();
+ (globalThis as any).__VUE_OPTIONS_API__ = true;
+ (globalThis as any).__VUE_PROD_DEVTOOLS__ = false;
+
+ createApp(App).mount("#app");
+
+ const emulator = new Emulator();
+ await emulator.main();
})();
diff --git a/examples/web/package.json b/examples/web/package.json
index 3b25a29a46c25f7a5e97cc0e436f3f5220333503..cb5ebe5407f63490f73e6551f1c2fd59881f0dc2 100644
--- a/examples/web/package.json
+++ b/examples/web/package.json
@@ -17,8 +17,10 @@
"source": "index.ts",
"devDependencies": {
"@parcel/transformer-typescript-tsc": "^2.6.2",
+ "@parcel/transformer-vue": "^2.6.2",
"parcel": "^2.6.2",
"prettier": "^2.7.1",
- "typescript": "^4.7.4"
+ "typescript": "^4.7.4",
+ "vue": "^3.2.37"
}
}
diff --git a/examples/web/tsconfig.json b/examples/web/tsconfig.json
index 54b8f23f78f97da010f950ac602328134bcce54a..8fbd457e4f663d87bd2c211a14d2354d6413c4c5 100644
--- a/examples/web/tsconfig.json
+++ b/examples/web/tsconfig.json
@@ -6,6 +6,12 @@
"allowSyntheticDefaultImports": true,
"target": "es6",
"noImplicitAny": true,
+ "noImplicitThis": true,
+ "alwaysStrict": true,
+ "strictBindCallApply": true,
+ "strictNullChecks": true,
+ "strictFunctionTypes": true,
+ "strictPropertyInitialization": true,
"sourceMap": true,
"outDir": ".",
"baseUrl": ".",
diff --git a/examples/web/vue/app.vue b/examples/web/vue/app.vue
new file mode 100644
index 0000000000000000000000000000000000000000..ee279da326f393316fb3d8b8bd9aa4fd1da78b85
--- /dev/null
+++ b/examples/web/vue/app.vue
@@ -0,0 +1,23 @@
+<template>
+ <div v-bind:class="'hello'" v-on:click="() => count++">Hello This {{ name }} {{ count}}!</div>
+</template>
+
+<style scoped>
+.hello {
+ cursor: pointer;
+ user-select: none;
+}
+</style>
+
+<script>
+export const App = {
+ data() {
+ return {
+ name: "Vue",
+ count: 1
+ };
+ }
+};
+
+export default App;
+</script>
diff --git a/examples/web/vue/components/button.vue b/examples/web/vue/components/button.vue
new file mode 100644
index 0000000000000000000000000000000000000000..fe4c1679e018f02dfbe6817ecca95552f214e41a
--- /dev/null
+++ b/examples/web/vue/components/button.vue
@@ -0,0 +1,16 @@
+<template>
+ <div v-on:click="() => count++">Hello {{ name }} {{ count}}!</div>
+</template>
+
+<script>
+export const Button = {
+ data() {
+ return {
+ name: "Vue",
+ count: 1
+ };
+ }
+};
+
+export default Button;
+</script>