mirror of
https://github.com/giongto35/cloud-game.git
synced 2026-01-23 10:35:44 +00:00
337 lines
8.6 KiB
JavaScript
337 lines
8.6 KiB
JavaScript
import {log} from 'log';
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const endpoints = {
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LATENCY_CHECK: 3,
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INIT: 4,
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INIT_WEBRTC: 100,
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OFFER: 101,
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ANSWER: 102,
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ICE_CANDIDATE: 103,
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GAME_START: 104,
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GAME_QUIT: 105,
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GAME_SAVE: 106,
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GAME_LOAD: 107,
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GAME_SET_PLAYER_INDEX: 108,
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GAME_RECORDING: 110,
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GET_WORKER_LIST: 111,
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GAME_ERROR_NO_FREE_SLOTS: 112,
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GAME_RESET: 113,
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APP_VIDEO_CHANGE: 150,
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}
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let transport = {
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send: (packet) => {
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log.warn('Default transport is used! Change it with the api.transport variable.', packet)
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},
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keyboard: (packet) => {
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log.warn('Default transport is used! Change it with the api.transport variable.', packet)
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},
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mouse: (packet) => {
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log.warn('Default transport is used! Change it with the api.transport variable.', packet)
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}
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}
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const packet = (type, payload, id) => {
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const packet = {t: type}
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if (id !== undefined) packet.id = id
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if (payload !== undefined) packet.p = payload
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transport.send(packet)
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}
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const decodeBytes = (b) => String.fromCharCode.apply(null, new Uint8Array(b))
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const keyboardPress = (() => {
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// 0 1 2 3 4 5 6
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// [CODE ] P MOD
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const buffer = new ArrayBuffer(7)
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const dv = new DataView(buffer)
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return (pressed = false, e) => {
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if (e.repeat) return // skip pressed key events
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const key = libretro.mod
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let code = libretro.map('', e.code)
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let shift = e.shiftKey
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// a special Esc for &$&!& Firefox
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if (shift && code === 96) {
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code = 27
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shift = false
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}
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const mod = 0
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| (e.altKey && key.ALT)
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| (e.ctrlKey && key.CTRL)
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| (e.metaKey && key.META)
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| (shift && key.SHIFT)
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| (e.getModifierState('NumLock') && key.NUMLOCK)
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| (e.getModifierState('CapsLock') && key.CAPSLOCK)
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| (e.getModifierState('ScrollLock') && key.SCROLLOCK)
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dv.setUint32(0, code)
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dv.setUint8(4, +pressed)
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dv.setUint16(5, mod)
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transport.keyboard(buffer)
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}
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})()
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const mouse = {
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MOVEMENT: 0,
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BUTTONS: 1
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}
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const mouseMove = (() => {
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// 0 1 2 3 4
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// T DX DY
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const buffer = new ArrayBuffer(5)
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const dv = new DataView(buffer)
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return (dx = 0, dy = 0) => {
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dv.setUint8(0, mouse.MOVEMENT)
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dv.setInt16(1, dx)
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dv.setInt16(3, dy)
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transport.mouse(buffer)
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}
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})()
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const mousePress = (() => {
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// 0 1
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// T B
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const buffer = new ArrayBuffer(2)
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const dv = new DataView(buffer)
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// 0: Main button pressed, usually the left button or the un-initialized state
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// 1: Auxiliary button pressed, usually the wheel button or the middle button (if present)
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// 2: Secondary button pressed, usually the right button
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// 3: Fourth button, typically the Browser Back button
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// 4: Fifth button, typically the Browser Forward button
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const b2r = [1, 4, 2, 0, 0] // browser mouse button to retro button
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// assumed that only one button pressed / released
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return (button = 0, pressed = false) => {
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dv.setUint8(0, mouse.BUTTONS)
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dv.setUint8(1, pressed ? b2r[button] : 0)
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transport.mouse(buffer)
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}
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})()
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const libretro = function () {// RETRO_KEYBOARD
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const retro = {
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'': 0,
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'Unidentified': 0,
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'Unknown': 0, // ???
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'First': 0, // ???
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'Backspace': 8,
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'Tab': 9,
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'Clear': 12,
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'Enter': 13, 'Return': 13,
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'Pause': 19,
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'Escape': 27,
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'Space': 32,
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'Exclaim': 33,
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'Quotedbl': 34,
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'Hash': 35,
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'Dollar': 36,
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'Ampersand': 38,
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'Quote': 39,
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'Leftparen': 40, '(': 40,
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'Rightparen': 41, ')': 41,
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'Asterisk': 42,
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'Plus': 43,
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'Comma': 44,
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'Minus': 45,
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'Period': 46,
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'Slash': 47,
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'Digit0': 48,
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'Digit1': 49,
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'Digit2': 50,
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'Digit3': 51,
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'Digit4': 52,
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'Digit5': 53,
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'Digit6': 54,
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'Digit7': 55,
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'Digit8': 56,
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'Digit9': 57,
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'Colon': 58, ':': 58,
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'Semicolon': 59, ';': 59,
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'Less': 60, '<': 60,
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'Equal': 61, '=': 61,
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'Greater': 62, '>': 62,
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'Question': 63, '?': 63,
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// RETROK_AT = 64,
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'BracketLeft': 91, '[': 91,
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'Backslash': 92, '\\': 92,
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'BracketRight': 93, ']': 93,
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// RETROK_CARET = 94,
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// RETROK_UNDERSCORE = 95,
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'Backquote': 96, '`': 96,
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'KeyA': 97,
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'KeyB': 98,
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'KeyC': 99,
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'KeyD': 100,
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'KeyE': 101,
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'KeyF': 102,
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'KeyG': 103,
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'KeyH': 104,
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'KeyI': 105,
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'KeyJ': 106,
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'KeyK': 107,
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'KeyL': 108,
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'KeyM': 109,
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'KeyN': 110,
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'KeyO': 111,
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'KeyP': 112,
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'KeyQ': 113,
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'KeyR': 114,
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'KeyS': 115,
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'KeyT': 116,
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'KeyU': 117,
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'KeyV': 118,
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'KeyW': 119,
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'KeyX': 120,
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'KeyY': 121,
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'KeyZ': 122,
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'{': 123,
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'|': 124,
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'}': 125,
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'Tilde': 126, '~': 126,
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'Delete': 127,
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'Numpad0': 256,
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'Numpad1': 257,
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'Numpad2': 258,
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'Numpad3': 259,
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'Numpad4': 260,
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'Numpad5': 261,
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'Numpad6': 262,
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'Numpad7': 263,
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'Numpad8': 264,
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'Numpad9': 265,
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'NumpadDecimal': 266,
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'NumpadDivide': 267,
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'NumpadMultiply': 268,
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'NumpadSubtract': 269,
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'NumpadAdd': 270,
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'NumpadEnter': 271,
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'NumpadEqual': 272,
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'ArrowUp': 273,
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'ArrowDown': 274,
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'ArrowRight': 275,
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'ArrowLeft': 276,
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'Insert': 277,
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'Home': 278,
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'End': 279,
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'PageUp': 280,
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'PageDown': 281,
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'F1': 282,
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'F2': 283,
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'F3': 284,
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'F4': 285,
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'F5': 286,
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'F6': 287,
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'F7': 288,
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'F8': 289,
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'F9': 290,
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'F10': 291,
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'F11': 292,
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'F12': 293,
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'F13': 294,
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'F14': 295,
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'F15': 296,
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'NumLock': 300,
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'CapsLock': 301,
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'ScrollLock': 302,
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'ShiftRight': 303,
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'ShiftLeft': 304,
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'ControlRight': 305,
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'ControlLeft': 306,
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'AltRight': 307,
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'AltLeft': 308,
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'MetaRight': 309,
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'MetaLeft': 310,
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// RETROK_LSUPER = 311,
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// RETROK_RSUPER = 312,
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// RETROK_MODE = 313,
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// RETROK_COMPOSE = 314,
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// RETROK_HELP = 315,
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// RETROK_PRINT = 316,
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// RETROK_SYSREQ = 317,
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// RETROK_BREAK = 318,
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// RETROK_MENU = 319,
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'Power': 320,
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// RETROK_EURO = 321,
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// RETROK_UNDO = 322,
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// RETROK_OEM_102 = 323,
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}
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const retroMod = {
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NONE: 0x0000,
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SHIFT: 0x01,
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CTRL: 0x02,
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ALT: 0x04,
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META: 0x08,
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NUMLOCK: 0x10,
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CAPSLOCK: 0x20,
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SCROLLOCK: 0x40,
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}
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const _map = (key = '', code = '') => {
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return retro[code] || retro[key] || 0
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}
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return {
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map: _map,
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mod: retroMod,
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}
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}()
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/**
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* Server API.
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*
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* Requires the actual api.transport implementation.
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*/
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export const api = {
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set transport(t) {
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transport = t;
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},
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endpoint: endpoints,
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decode: (b) => JSON.parse(decodeBytes(b)),
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server: {
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initWebrtc: () => packet(endpoints.INIT_WEBRTC),
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sendIceCandidate: (candidate) => packet(endpoints.ICE_CANDIDATE, btoa(JSON.stringify(candidate))),
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sendSdp: (sdp) => packet(endpoints.ANSWER, btoa(JSON.stringify(sdp))),
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latencyCheck: (id, list) => packet(endpoints.LATENCY_CHECK, list, id),
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getWorkerList: () => packet(endpoints.GET_WORKER_LIST),
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},
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game: {
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input: {
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keyboard: {
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press: keyboardPress,
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},
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mouse: {
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move: mouseMove,
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press: mousePress,
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}
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},
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load: () => packet(endpoints.GAME_LOAD),
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reset: (roomId) => packet(endpoints.GAME_RESET, {room_id: roomId}),
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save: () => packet(endpoints.GAME_SAVE),
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setPlayerIndex: (i) => packet(endpoints.GAME_SET_PLAYER_INDEX, i),
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start: (game, roomId, record, recordUser, player) => packet(endpoints.GAME_START, {
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game_name: game,
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room_id: roomId,
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player_index: player,
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record: record,
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record_user: recordUser,
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}),
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toggleRecording: (active = false, userName = '') =>
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packet(endpoints.GAME_RECORDING, {active: active, user: userName}),
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quit: (roomId) => packet(endpoints.GAME_QUIT, {room_id: roomId}),
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}
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}
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