refactor(frontend): extract game engine from vue component
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				|  | @ -117,12 +117,9 @@ SPDX-License-Identifier: AGPL-3.0-only | |||
| </template> | ||||
| 
 | ||||
| <script lang="ts" setup> | ||||
| import * as Matter from 'matter-js'; | ||||
| import { onDeactivated, ref, shallowRef } from 'vue'; | ||||
| import { EventEmitter } from 'eventemitter3'; | ||||
| import * as Misskey from 'misskey-js'; | ||||
| import { definePageMetadata } from '@/scripts/page-metadata.js'; | ||||
| import * as sound from '@/scripts/sound.js'; | ||||
| import MkRippleEffect from '@/components/MkRippleEffect.vue'; | ||||
| import * as os from '@/os.js'; | ||||
| import MkNumber from '@/components/MkNumber.vue'; | ||||
|  | @ -136,19 +133,7 @@ import { useInterval } from '@/scripts/use-interval.js'; | |||
| import MkSelect from '@/components/MkSelect.vue'; | ||||
| import { apiUrl } from '@/config.js'; | ||||
| import { $i } from '@/account.js'; | ||||
| 
 | ||||
| type Mono = { | ||||
| 	id: string; | ||||
| 	level: number; | ||||
| 	size: number; | ||||
| 	shape: 'circle' | 'rectangle'; | ||||
| 	score: number; | ||||
| 	dropCandidate: boolean; | ||||
| 	sfxPitch: number; | ||||
| 	img: string; | ||||
| 	imgSize: number; | ||||
| 	spriteScale: number; | ||||
| }; | ||||
| import { DropAndFusionGame, Mono } from '@/scripts/drop-and-fusion-engine.js'; | ||||
| 
 | ||||
| const containerEl = shallowRef<HTMLElement>(); | ||||
| const canvasEl = shallowRef<HTMLCanvasElement>(); | ||||
|  | @ -382,7 +367,6 @@ const SQUARE_MONOS: Mono[] = [{ | |||
| 
 | ||||
| const GAME_WIDTH = 450; | ||||
| const GAME_HEIGHT = 600; | ||||
| const PHYSICS_QUALITY_FACTOR = 16; // 低いほどパフォーマンスが高いがガタガタして安定しなくなる、逆に高すぎても何故か不安定になる | ||||
| 
 | ||||
| let viewScaleX = 1; | ||||
| let viewScaleY = 1; | ||||
|  | @ -398,373 +382,7 @@ const gameOver = ref(false); | |||
| const gameStarted = ref(false); | ||||
| const highScore = ref<number | null>(null); | ||||
| 
 | ||||
| class Game extends EventEmitter<{ | ||||
| 	changeScore: (newScore: number) => void; | ||||
| 	changeCombo: (newCombo: number) => void; | ||||
| 	changeStock: (newStock: { id: string; mono: Mono }[]) => void; | ||||
| 	dropped: () => void; | ||||
| 	fusioned: (x: number, y: number, scoreDelta: number) => void; | ||||
| 	monoAdded: (mono: Mono) => void; | ||||
| 	gameOver: () => void; | ||||
| }> { | ||||
| 	private COMBO_INTERVAL = 1000; | ||||
| 	public readonly DROP_INTERVAL = 500; | ||||
| 	public readonly PLAYAREA_MARGIN = 25; | ||||
| 	private STOCK_MAX = 4; | ||||
| 	private loaded = false; | ||||
| 	private engine: Matter.Engine; | ||||
| 	private render: Matter.Render; | ||||
| 	private runner: Matter.Runner; | ||||
| 	private overflowCollider: Matter.Body; | ||||
| 	private isGameOver = false; | ||||
| 
 | ||||
| 	private monoDefinitions: Mono[] = []; | ||||
| 	private monoTextures: Record<string, Blob> = {}; | ||||
| 	private monoTextureUrls: Record<string, string> = {}; | ||||
| 
 | ||||
| 	/** | ||||
| 	 * フィールドに出ていて、かつ合体の対象となるアイテム | ||||
| 	 */ | ||||
| 	private activeBodyIds: Matter.Body['id'][] = []; | ||||
| 
 | ||||
| 	private latestDroppedBodyId: Matter.Body['id'] | null = null; | ||||
| 
 | ||||
| 	private latestDroppedAt = 0; | ||||
| 	private latestFusionedAt = 0; | ||||
| 	private stock: { id: string; mono: Mono }[] = []; | ||||
| 
 | ||||
| 	private _combo = 0; | ||||
| 	private get combo() { | ||||
| 		return this._combo; | ||||
| 	} | ||||
| 	private set combo(value: number) { | ||||
| 		this._combo = value; | ||||
| 		this.emit('changeCombo', value); | ||||
| 	} | ||||
| 
 | ||||
| 	private _score = 0; | ||||
| 	private get score() { | ||||
| 		return this._score; | ||||
| 	} | ||||
| 	private set score(value: number) { | ||||
| 		this._score = value; | ||||
| 		this.emit('changeScore', value); | ||||
| 	} | ||||
| 
 | ||||
| 	private comboIntervalId: number | null = null; | ||||
| 
 | ||||
| 	constructor(opts: { | ||||
| 		monoDefinitions: Mono[]; | ||||
| 	}) { | ||||
| 		super(); | ||||
| 
 | ||||
| 		this.monoDefinitions = opts.monoDefinitions; | ||||
| 
 | ||||
| 		this.engine = Matter.Engine.create({ | ||||
| 			constraintIterations: 2 * PHYSICS_QUALITY_FACTOR, | ||||
| 			positionIterations: 6 * PHYSICS_QUALITY_FACTOR, | ||||
| 			velocityIterations: 4 * PHYSICS_QUALITY_FACTOR, | ||||
| 			gravity: { | ||||
| 				x: 0, | ||||
| 				y: 1, | ||||
| 			}, | ||||
| 			timing: { | ||||
| 				timeScale: 2, | ||||
| 			}, | ||||
| 			enableSleeping: false, | ||||
| 		}); | ||||
| 
 | ||||
| 		this.render = Matter.Render.create({ | ||||
| 			engine: this.engine, | ||||
| 			canvas: canvasEl.value, | ||||
| 			options: { | ||||
| 				width: GAME_WIDTH, | ||||
| 				height: GAME_HEIGHT, | ||||
| 				background: 'transparent', // transparent to hide | ||||
| 				wireframeBackground: 'transparent', // transparent to hide | ||||
| 				wireframes: false, | ||||
| 				showSleeping: false, | ||||
| 				pixelRatio: Math.max(2, window.devicePixelRatio), | ||||
| 			}, | ||||
| 		}); | ||||
| 
 | ||||
| 		Matter.Render.run(this.render); | ||||
| 
 | ||||
| 		this.runner = Matter.Runner.create(); | ||||
| 		Matter.Runner.run(this.runner, this.engine); | ||||
| 
 | ||||
| 		this.engine.world.bodies = []; | ||||
| 
 | ||||
| 		//#region walls | ||||
| 		const WALL_OPTIONS: Matter.IChamferableBodyDefinition = { | ||||
| 			isStatic: true, | ||||
| 			friction: 0.7, | ||||
| 			slop: 1.0, | ||||
| 			render: { | ||||
| 				strokeStyle: 'transparent', | ||||
| 				fillStyle: 'transparent', | ||||
| 			}, | ||||
| 		}; | ||||
| 
 | ||||
| 		const thickness = 100; | ||||
| 		Matter.Composite.add(this.engine.world, [ | ||||
| 			Matter.Bodies.rectangle(GAME_WIDTH / 2, GAME_HEIGHT + (thickness / 2) - this.PLAYAREA_MARGIN, GAME_WIDTH, thickness, WALL_OPTIONS), | ||||
| 			Matter.Bodies.rectangle(GAME_WIDTH + (thickness / 2) - this.PLAYAREA_MARGIN, GAME_HEIGHT / 2, thickness, GAME_HEIGHT, WALL_OPTIONS), | ||||
| 			Matter.Bodies.rectangle(-((thickness / 2) - this.PLAYAREA_MARGIN), GAME_HEIGHT / 2, thickness, GAME_HEIGHT, WALL_OPTIONS), | ||||
| 		]); | ||||
| 		//#endregion | ||||
| 
 | ||||
| 		this.overflowCollider = Matter.Bodies.rectangle(GAME_WIDTH / 2, 0, GAME_WIDTH, 200, { | ||||
| 			isStatic: true, | ||||
| 			isSensor: true, | ||||
| 			render: { | ||||
| 				strokeStyle: 'transparent', | ||||
| 				fillStyle: 'transparent', | ||||
| 			}, | ||||
| 		}); | ||||
| 		Matter.Composite.add(this.engine.world, this.overflowCollider); | ||||
| 
 | ||||
| 		// fit the render viewport to the scene | ||||
| 		Matter.Render.lookAt(this.render, { | ||||
| 			min: { x: 0, y: 0 }, | ||||
| 			max: { x: GAME_WIDTH, y: GAME_HEIGHT }, | ||||
| 		}); | ||||
| 	} | ||||
| 
 | ||||
| 	private createBody(mono: Mono, x: number, y: number) { | ||||
| 		const options: Matter.IBodyDefinition = { | ||||
| 			label: mono.id, | ||||
| 			//density: 0.0005, | ||||
| 			density: mono.size / 1000, | ||||
| 			restitution: 0.2, | ||||
| 			frictionAir: 0.01, | ||||
| 			friction: 0.7, | ||||
| 			frictionStatic: 5, | ||||
| 			slop: 1.0, | ||||
| 			//mass: 0, | ||||
| 			render: { | ||||
| 				sprite: { | ||||
| 					texture: mono.img, | ||||
| 					xScale: (mono.size / mono.imgSize) * mono.spriteScale, | ||||
| 					yScale: (mono.size / mono.imgSize) * mono.spriteScale, | ||||
| 				}, | ||||
| 			}, | ||||
| 		}; | ||||
| 		if (mono.shape === 'circle') { | ||||
| 			return Matter.Bodies.circle(x, y, mono.size / 2, options); | ||||
| 		} else if (mono.shape === 'rectangle') { | ||||
| 			return Matter.Bodies.rectangle(x, y, mono.size, mono.size, options); | ||||
| 		} else { | ||||
| 			throw new Error('unrecognized shape'); | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	private fusion(bodyA: Matter.Body, bodyB: Matter.Body) { | ||||
| 		const now = Date.now(); | ||||
| 		if (this.latestFusionedAt > now - this.COMBO_INTERVAL) { | ||||
| 			this.combo++; | ||||
| 		} else { | ||||
| 			this.combo = 1; | ||||
| 		} | ||||
| 		this.latestFusionedAt = now; | ||||
| 
 | ||||
| 		// TODO: 単に位置だけでなくそれぞれの動きベクトルも融合する | ||||
| 		const newX = (bodyA.position.x + bodyB.position.x) / 2; | ||||
| 		const newY = (bodyA.position.y + bodyB.position.y) / 2; | ||||
| 
 | ||||
| 		Matter.Composite.remove(this.engine.world, [bodyA, bodyB]); | ||||
| 		this.activeBodyIds = this.activeBodyIds.filter(x => x !== bodyA.id && x !== bodyB.id); | ||||
| 
 | ||||
| 		const currentMono = this.monoDefinitions.find(y => y.id === bodyA.label)!; | ||||
| 		const nextMono = this.monoDefinitions.find(x => x.level === currentMono.level + 1); | ||||
| 
 | ||||
| 		if (nextMono) { | ||||
| 			const body = this.createBody(nextMono, newX, newY); | ||||
| 			Matter.Composite.add(this.engine.world, body); | ||||
| 
 | ||||
| 			// 連鎖してfusionした場合の分かりやすさのため少し間を置いてからfusion対象になるようにする | ||||
| 			window.setTimeout(() => { | ||||
| 				this.activeBodyIds.push(body.id); | ||||
| 			}, 100); | ||||
| 
 | ||||
| 			const comboBonus = 1 + ((this.combo - 1) / 5); | ||||
| 			const additionalScore = Math.round(currentMono.score * comboBonus); | ||||
| 			this.score += additionalScore; | ||||
| 
 | ||||
| 			const pan = ((newX / GAME_WIDTH) - 0.5) * 2; | ||||
| 			sound.playRaw('syuilo/bubble2', 1, pan, nextMono.sfxPitch); | ||||
| 
 | ||||
| 			this.emit('monoAdded', nextMono); | ||||
| 			this.emit('fusioned', newX, newY, additionalScore); | ||||
| 		} else { | ||||
| 			//const VELOCITY = 30; | ||||
| 			//for (let i = 0; i < 10; i++) { | ||||
| 			//	const body = createBody(FRUITS.find(x => x.level === (1 + Math.floor(Math.random() * 3)))!, x + ((Math.random() * VELOCITY) - (VELOCITY / 2)), y + ((Math.random() * VELOCITY) - (VELOCITY / 2))); | ||||
| 			//	Matter.Composite.add(world, body); | ||||
| 			//	bodies.push(body); | ||||
| 			//} | ||||
| 			//sound.playRaw({ | ||||
| 			//	type: 'syuilo/bubble2', | ||||
| 			//	volume: 1, | ||||
| 			//}); | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	private gameOver() { | ||||
| 		this.isGameOver = true; | ||||
| 		Matter.Runner.stop(this.runner); | ||||
| 		this.emit('gameOver'); | ||||
| 	} | ||||
| 
 | ||||
| 	/** テクスチャをすべてキャッシュする */ | ||||
| 	private async loadMonoTextures() { | ||||
| 		async function loadSingleMonoTexture(mono: Mono, game: Game) { | ||||
| 			// Matter-js内にキャッシュがある場合はスキップ | ||||
| 			if (game.render.textures[mono.img]) return; | ||||
| 			console.log('loading', mono.img); | ||||
| 
 | ||||
| 			let src = mono.img; | ||||
| 			// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition | ||||
| 			if (game.monoTextureUrls[mono.img]) { | ||||
| 				src = game.monoTextureUrls[mono.img]; | ||||
| 			// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition | ||||
| 			} else if (game.monoTextures[mono.img]) { | ||||
| 				src = URL.createObjectURL(game.monoTextures[mono.img]); | ||||
| 				game.monoTextureUrls[mono.img] = src; | ||||
| 			} else { | ||||
| 				const res = await fetch(mono.img); | ||||
| 				const blob = await res.blob(); | ||||
| 				game.monoTextures[mono.img] = blob; | ||||
| 				src = URL.createObjectURL(blob); | ||||
| 				game.monoTextureUrls[mono.img] = src; | ||||
| 			} | ||||
| 
 | ||||
| 			const image = new Image(); | ||||
| 			image.src = src; | ||||
| 			game.render.textures[mono.img] = image; | ||||
| 		} | ||||
| 
 | ||||
| 		return Promise.all(this.monoDefinitions.map(x => loadSingleMonoTexture(x, this))); | ||||
| 	} | ||||
| 
 | ||||
| 	public start() { | ||||
| 		if (!this.loaded) throw new Error('game is not loaded yet'); | ||||
| 
 | ||||
| 		for (let i = 0; i < this.STOCK_MAX; i++) { | ||||
| 			this.stock.push({ | ||||
| 				id: Math.random().toString(), | ||||
| 				mono: this.monoDefinitions.filter(x => x.dropCandidate)[Math.floor(Math.random() * this.monoDefinitions.filter(x => x.dropCandidate).length)], | ||||
| 			}); | ||||
| 		} | ||||
| 		this.emit('changeStock', this.stock); | ||||
| 
 | ||||
| 		// TODO: fusion予約状態のアイテムは光らせるなどの演出をすると楽しそう | ||||
| 		let fusionReservedPairs: { bodyA: Matter.Body; bodyB: Matter.Body }[] = []; | ||||
| 
 | ||||
| 		const minCollisionEnergyForSound = 2.5; | ||||
| 		const maxCollisionEnergyForSound = 9; | ||||
| 		const soundPitchMax = 4; | ||||
| 		const soundPitchMin = 0.5; | ||||
| 
 | ||||
| 		Matter.Events.on(this.engine, 'collisionStart', (event) => { | ||||
| 			for (const pairs of event.pairs) { | ||||
| 				const { bodyA, bodyB } = pairs; | ||||
| 				if (bodyA.id === this.overflowCollider.id || bodyB.id === this.overflowCollider.id) { | ||||
| 					if (bodyA.id === this.latestDroppedBodyId || bodyB.id === this.latestDroppedBodyId) { | ||||
| 						continue; | ||||
| 					} | ||||
| 					this.gameOver(); | ||||
| 					break; | ||||
| 				} | ||||
| 				const shouldFusion = (bodyA.label === bodyB.label) && !fusionReservedPairs.some(x => x.bodyA.id === bodyA.id || x.bodyA.id === bodyB.id || x.bodyB.id === bodyA.id || x.bodyB.id === bodyB.id); | ||||
| 				if (shouldFusion) { | ||||
| 					if (this.activeBodyIds.includes(bodyA.id) && this.activeBodyIds.includes(bodyB.id)) { | ||||
| 						this.fusion(bodyA, bodyB); | ||||
| 					} else { | ||||
| 						fusionReservedPairs.push({ bodyA, bodyB }); | ||||
| 						window.setTimeout(() => { | ||||
| 							fusionReservedPairs = fusionReservedPairs.filter(x => x.bodyA.id !== bodyA.id && x.bodyB.id !== bodyB.id); | ||||
| 							this.fusion(bodyA, bodyB); | ||||
| 						}, 100); | ||||
| 					} | ||||
| 				} else { | ||||
| 					const energy = pairs.collision.depth; | ||||
| 					if (energy > minCollisionEnergyForSound) { | ||||
| 						const vol = (Math.min(maxCollisionEnergyForSound, energy - minCollisionEnergyForSound) / maxCollisionEnergyForSound) / 4; | ||||
| 						const pan = ((((bodyA.position.x + bodyB.position.x) / 2) / GAME_WIDTH) - 0.5) * 2; | ||||
| 						const pitch = soundPitchMin + ((soundPitchMax - soundPitchMin) * (1 - (Math.min(10, energy) / 10))); | ||||
| 						sound.playRaw('syuilo/poi1', vol, pan, pitch); | ||||
| 					} | ||||
| 				} | ||||
| 			} | ||||
| 		}); | ||||
| 
 | ||||
| 		this.comboIntervalId = window.setInterval(() => { | ||||
| 			if (this.latestFusionedAt < Date.now() - this.COMBO_INTERVAL) { | ||||
| 				this.combo = 0; | ||||
| 			} | ||||
| 		}, 500); | ||||
| 	} | ||||
| 
 | ||||
| 	public async load() { | ||||
| 		await this.loadMonoTextures(); | ||||
| 		this.loaded = true; | ||||
| 	} | ||||
| 
 | ||||
| 	public getTextureImageUrl(mono: Mono) { | ||||
| 		// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition | ||||
| 		if (this.monoTextureUrls[mono.img]) { | ||||
| 			return this.monoTextureUrls[mono.img]; | ||||
| 
 | ||||
| 		// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition | ||||
| 		} else if (this.monoTextures[mono.img]) { | ||||
| 			// Gameクラス内にキャッシュがある場合はそれを使う | ||||
| 			const out = URL.createObjectURL(this.monoTextures[mono.img]); | ||||
| 			this.monoTextureUrls[mono.img] = out; | ||||
| 			return out; | ||||
| 		} else { | ||||
| 			return mono.img; | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	public getActiveMonos() { | ||||
| 		return this.engine.world.bodies.map(x => this.monoDefinitions.find((mono) => mono.id === x.label)!).filter(x => x !== undefined); | ||||
| 	} | ||||
| 
 | ||||
| 	public drop(_x: number) { | ||||
| 		if (this.isGameOver) return; | ||||
| 		if (Date.now() - this.latestDroppedAt < this.DROP_INTERVAL) { | ||||
| 			return; | ||||
| 		} | ||||
| 		const st = this.stock.shift()!; | ||||
| 		this.stock.push({ | ||||
| 			id: Math.random().toString(), | ||||
| 			mono: this.monoDefinitions.filter(x => x.dropCandidate)[Math.floor(Math.random() * this.monoDefinitions.filter(x => x.dropCandidate).length)], | ||||
| 		}); | ||||
| 		this.emit('changeStock', this.stock); | ||||
| 
 | ||||
| 		const x = Math.min(GAME_WIDTH - this.PLAYAREA_MARGIN - (st.mono.size / 2), Math.max(this.PLAYAREA_MARGIN + (st.mono.size / 2), _x)); | ||||
| 		const body = this.createBody(st.mono, x, 50 + st.mono.size / 2); | ||||
| 		Matter.Composite.add(this.engine.world, body); | ||||
| 		this.activeBodyIds.push(body.id); | ||||
| 		this.latestDroppedBodyId = body.id; | ||||
| 		this.latestDroppedAt = Date.now(); | ||||
| 		this.emit('dropped'); | ||||
| 		this.emit('monoAdded', st.mono); | ||||
| 		const pan = ((x / GAME_WIDTH) - 0.5) * 2; | ||||
| 		sound.playRaw('syuilo/poi2', 1, pan); | ||||
| 	} | ||||
| 
 | ||||
| 	public dispose() { | ||||
| 		if (this.comboIntervalId) window.clearInterval(this.comboIntervalId); | ||||
| 		Matter.Render.stop(this.render); | ||||
| 		Matter.Runner.stop(this.runner); | ||||
| 		Matter.World.clear(this.engine.world, false); | ||||
| 		Matter.Engine.clear(this.engine); | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| let game: Game; | ||||
| let game: DropAndFusionGame; | ||||
| let containerElRect: DOMRect | null = null; | ||||
| 
 | ||||
| function onClick(ev: MouseEvent) { | ||||
|  | @ -885,10 +503,17 @@ async function start() { | |||
| 		highScore.value = null; | ||||
| 	} | ||||
| 
 | ||||
| 	game = new Game(gameMode.value === 'normal' ? { | ||||
| 		monoDefinitions: NORAML_MONOS, | ||||
| 	} : { | ||||
| 		monoDefinitions: SQUARE_MONOS, | ||||
| 	game = new DropAndFusionGame({ | ||||
| 		width: GAME_WIDTH, | ||||
| 		height: GAME_HEIGHT, | ||||
| 		canvas: canvasEl.value!, | ||||
| 		...( | ||||
| 			gameMode.value === 'normal' ? { | ||||
| 				monoDefinitions: NORAML_MONOS, | ||||
| 			} : { | ||||
| 				monoDefinitions: SQUARE_MONOS, | ||||
| 			} | ||||
| 		), | ||||
| 	}); | ||||
| 	attachGameEvents(); | ||||
| 	os.promiseDialog(game.load(), () => { | ||||
|  |  | |||
|  | @ -0,0 +1,396 @@ | |||
| /* | ||||
|  * SPDX-FileCopyrightText: syuilo and other misskey contributors | ||||
|  * SPDX-License-Identifier: AGPL-3.0-only | ||||
|  */ | ||||
| 
 | ||||
| import { EventEmitter } from 'eventemitter3'; | ||||
| import * as Matter from 'matter-js'; | ||||
| import * as sound from '@/scripts/sound.js'; | ||||
| 
 | ||||
| export type Mono = { | ||||
| 	id: string; | ||||
| 	level: number; | ||||
| 	size: number; | ||||
| 	shape: 'circle' | 'rectangle'; | ||||
| 	score: number; | ||||
| 	dropCandidate: boolean; | ||||
| 	sfxPitch: number; | ||||
| 	img: string; | ||||
| 	imgSize: number; | ||||
| 	spriteScale: number; | ||||
| }; | ||||
| 
 | ||||
| const PHYSICS_QUALITY_FACTOR = 16; // 低いほどパフォーマンスが高いがガタガタして安定しなくなる、逆に高すぎても何故か不安定になる
 | ||||
| 
 | ||||
| export class DropAndFusionGame extends EventEmitter<{ | ||||
| 	changeScore: (newScore: number) => void; | ||||
| 	changeCombo: (newCombo: number) => void; | ||||
| 	changeStock: (newStock: { id: string; mono: Mono }[]) => void; | ||||
| 	dropped: () => void; | ||||
| 	fusioned: (x: number, y: number, scoreDelta: number) => void; | ||||
| 	monoAdded: (mono: Mono) => void; | ||||
| 	gameOver: () => void; | ||||
| }> { | ||||
| 	private COMBO_INTERVAL = 1000; | ||||
| 	public readonly DROP_INTERVAL = 500; | ||||
| 	public readonly PLAYAREA_MARGIN = 25; | ||||
| 	private STOCK_MAX = 4; | ||||
| 	private loaded = false; | ||||
| 	private engine: Matter.Engine; | ||||
| 	private render: Matter.Render; | ||||
| 	private runner: Matter.Runner; | ||||
| 	private overflowCollider: Matter.Body; | ||||
| 	private isGameOver = false; | ||||
| 
 | ||||
| 	private gameWidth: number; | ||||
| 	private gameHeight: number; | ||||
| 	private monoDefinitions: Mono[] = []; | ||||
| 	private monoTextures: Record<string, Blob> = {}; | ||||
| 	private monoTextureUrls: Record<string, string> = {}; | ||||
| 
 | ||||
| 	/** | ||||
| 	 * フィールドに出ていて、かつ合体の対象となるアイテム | ||||
| 	 */ | ||||
| 	private activeBodyIds: Matter.Body['id'][] = []; | ||||
| 
 | ||||
| 	private latestDroppedBodyId: Matter.Body['id'] | null = null; | ||||
| 
 | ||||
| 	private latestDroppedAt = 0; | ||||
| 	private latestFusionedAt = 0; | ||||
| 	private stock: { id: string; mono: Mono }[] = []; | ||||
| 
 | ||||
| 	private _combo = 0; | ||||
| 	private get combo() { | ||||
| 		return this._combo; | ||||
| 	} | ||||
| 	private set combo(value: number) { | ||||
| 		this._combo = value; | ||||
| 		this.emit('changeCombo', value); | ||||
| 	} | ||||
| 
 | ||||
| 	private _score = 0; | ||||
| 	private get score() { | ||||
| 		return this._score; | ||||
| 	} | ||||
| 	private set score(value: number) { | ||||
| 		this._score = value; | ||||
| 		this.emit('changeScore', value); | ||||
| 	} | ||||
| 
 | ||||
| 	private comboIntervalId: number | null = null; | ||||
| 
 | ||||
| 	constructor(opts: { | ||||
| 		canvas: HTMLCanvasElement; | ||||
| 		width: number; | ||||
| 		height: number; | ||||
| 		monoDefinitions: Mono[]; | ||||
| 	}) { | ||||
| 		super(); | ||||
| 
 | ||||
| 		this.gameWidth = opts.width; | ||||
| 		this.gameHeight = opts.height; | ||||
| 		this.monoDefinitions = opts.monoDefinitions; | ||||
| 
 | ||||
| 		this.engine = Matter.Engine.create({ | ||||
| 			constraintIterations: 2 * PHYSICS_QUALITY_FACTOR, | ||||
| 			positionIterations: 6 * PHYSICS_QUALITY_FACTOR, | ||||
| 			velocityIterations: 4 * PHYSICS_QUALITY_FACTOR, | ||||
| 			gravity: { | ||||
| 				x: 0, | ||||
| 				y: 1, | ||||
| 			}, | ||||
| 			timing: { | ||||
| 				timeScale: 2, | ||||
| 			}, | ||||
| 			enableSleeping: false, | ||||
| 		}); | ||||
| 
 | ||||
| 		this.render = Matter.Render.create({ | ||||
| 			engine: this.engine, | ||||
| 			canvas: opts.canvas, | ||||
| 			options: { | ||||
| 				width: this.gameWidth, | ||||
| 				height: this.gameHeight, | ||||
| 				background: 'transparent', // transparent to hide
 | ||||
| 				wireframeBackground: 'transparent', // transparent to hide
 | ||||
| 				wireframes: false, | ||||
| 				showSleeping: false, | ||||
| 				pixelRatio: Math.max(2, window.devicePixelRatio), | ||||
| 			}, | ||||
| 		}); | ||||
| 
 | ||||
| 		Matter.Render.run(this.render); | ||||
| 
 | ||||
| 		this.runner = Matter.Runner.create(); | ||||
| 		Matter.Runner.run(this.runner, this.engine); | ||||
| 
 | ||||
| 		this.engine.world.bodies = []; | ||||
| 
 | ||||
| 		//#region walls
 | ||||
| 		const WALL_OPTIONS: Matter.IChamferableBodyDefinition = { | ||||
| 			isStatic: true, | ||||
| 			friction: 0.7, | ||||
| 			slop: 1.0, | ||||
| 			render: { | ||||
| 				strokeStyle: 'transparent', | ||||
| 				fillStyle: 'transparent', | ||||
| 			}, | ||||
| 		}; | ||||
| 
 | ||||
| 		const thickness = 100; | ||||
| 		Matter.Composite.add(this.engine.world, [ | ||||
| 			Matter.Bodies.rectangle(this.gameWidth / 2, this.gameHeight + (thickness / 2) - this.PLAYAREA_MARGIN, this.gameWidth, thickness, WALL_OPTIONS), | ||||
| 			Matter.Bodies.rectangle(this.gameWidth + (thickness / 2) - this.PLAYAREA_MARGIN, this.gameHeight / 2, thickness, this.gameHeight, WALL_OPTIONS), | ||||
| 			Matter.Bodies.rectangle(-((thickness / 2) - this.PLAYAREA_MARGIN), this.gameHeight / 2, thickness, this.gameHeight, WALL_OPTIONS), | ||||
| 		]); | ||||
| 		//#endregion
 | ||||
| 
 | ||||
| 		this.overflowCollider = Matter.Bodies.rectangle(this.gameWidth / 2, 0, this.gameWidth, 200, { | ||||
| 			isStatic: true, | ||||
| 			isSensor: true, | ||||
| 			render: { | ||||
| 				strokeStyle: 'transparent', | ||||
| 				fillStyle: 'transparent', | ||||
| 			}, | ||||
| 		}); | ||||
| 		Matter.Composite.add(this.engine.world, this.overflowCollider); | ||||
| 
 | ||||
| 		// fit the render viewport to the scene
 | ||||
| 		Matter.Render.lookAt(this.render, { | ||||
| 			min: { x: 0, y: 0 }, | ||||
| 			max: { x: this.gameWidth, y: this.gameHeight }, | ||||
| 		}); | ||||
| 	} | ||||
| 
 | ||||
| 	private createBody(mono: Mono, x: number, y: number) { | ||||
| 		const options: Matter.IBodyDefinition = { | ||||
| 			label: mono.id, | ||||
| 			//density: 0.0005,
 | ||||
| 			density: mono.size / 1000, | ||||
| 			restitution: 0.2, | ||||
| 			frictionAir: 0.01, | ||||
| 			friction: 0.7, | ||||
| 			frictionStatic: 5, | ||||
| 			slop: 1.0, | ||||
| 			//mass: 0,
 | ||||
| 			render: { | ||||
| 				sprite: { | ||||
| 					texture: mono.img, | ||||
| 					xScale: (mono.size / mono.imgSize) * mono.spriteScale, | ||||
| 					yScale: (mono.size / mono.imgSize) * mono.spriteScale, | ||||
| 				}, | ||||
| 			}, | ||||
| 		}; | ||||
| 		if (mono.shape === 'circle') { | ||||
| 			return Matter.Bodies.circle(x, y, mono.size / 2, options); | ||||
| 		} else if (mono.shape === 'rectangle') { | ||||
| 			return Matter.Bodies.rectangle(x, y, mono.size, mono.size, options); | ||||
| 		} else { | ||||
| 			throw new Error('unrecognized shape'); | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	private fusion(bodyA: Matter.Body, bodyB: Matter.Body) { | ||||
| 		const now = Date.now(); | ||||
| 		if (this.latestFusionedAt > now - this.COMBO_INTERVAL) { | ||||
| 			this.combo++; | ||||
| 		} else { | ||||
| 			this.combo = 1; | ||||
| 		} | ||||
| 		this.latestFusionedAt = now; | ||||
| 
 | ||||
| 		// TODO: 単に位置だけでなくそれぞれの動きベクトルも融合する
 | ||||
| 		const newX = (bodyA.position.x + bodyB.position.x) / 2; | ||||
| 		const newY = (bodyA.position.y + bodyB.position.y) / 2; | ||||
| 
 | ||||
| 		Matter.Composite.remove(this.engine.world, [bodyA, bodyB]); | ||||
| 		this.activeBodyIds = this.activeBodyIds.filter(x => x !== bodyA.id && x !== bodyB.id); | ||||
| 
 | ||||
| 		const currentMono = this.monoDefinitions.find(y => y.id === bodyA.label)!; | ||||
| 		const nextMono = this.monoDefinitions.find(x => x.level === currentMono.level + 1); | ||||
| 
 | ||||
| 		if (nextMono) { | ||||
| 			const body = this.createBody(nextMono, newX, newY); | ||||
| 			Matter.Composite.add(this.engine.world, body); | ||||
| 
 | ||||
| 			// 連鎖してfusionした場合の分かりやすさのため少し間を置いてからfusion対象になるようにする
 | ||||
| 			window.setTimeout(() => { | ||||
| 				this.activeBodyIds.push(body.id); | ||||
| 			}, 100); | ||||
| 
 | ||||
| 			const comboBonus = 1 + ((this.combo - 1) / 5); | ||||
| 			const additionalScore = Math.round(currentMono.score * comboBonus); | ||||
| 			this.score += additionalScore; | ||||
| 
 | ||||
| 			const pan = ((newX / this.gameWidth) - 0.5) * 2; | ||||
| 			sound.playRaw('syuilo/bubble2', 1, pan, nextMono.sfxPitch); | ||||
| 
 | ||||
| 			this.emit('monoAdded', nextMono); | ||||
| 			this.emit('fusioned', newX, newY, additionalScore); | ||||
| 		} else { | ||||
| 			//const VELOCITY = 30;
 | ||||
| 			//for (let i = 0; i < 10; i++) {
 | ||||
| 			//	const body = createBody(FRUITS.find(x => x.level === (1 + Math.floor(Math.random() * 3)))!, x + ((Math.random() * VELOCITY) - (VELOCITY / 2)), y + ((Math.random() * VELOCITY) - (VELOCITY / 2)));
 | ||||
| 			//	Matter.Composite.add(world, body);
 | ||||
| 			//	bodies.push(body);
 | ||||
| 			//}
 | ||||
| 			//sound.playRaw({
 | ||||
| 			//	type: 'syuilo/bubble2',
 | ||||
| 			//	volume: 1,
 | ||||
| 			//});
 | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	private gameOver() { | ||||
| 		this.isGameOver = true; | ||||
| 		Matter.Runner.stop(this.runner); | ||||
| 		this.emit('gameOver'); | ||||
| 	} | ||||
| 
 | ||||
| 	/** テクスチャをすべてキャッシュする */ | ||||
| 	private async loadMonoTextures() { | ||||
| 		async function loadSingleMonoTexture(mono: Mono, game: DropAndFusionGame) { | ||||
| 			// Matter-js内にキャッシュがある場合はスキップ
 | ||||
| 			if (game.render.textures[mono.img]) return; | ||||
| 			console.log('loading', mono.img); | ||||
| 
 | ||||
| 			let src = mono.img; | ||||
| 			// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
 | ||||
| 			if (game.monoTextureUrls[mono.img]) { | ||||
| 				src = game.monoTextureUrls[mono.img]; | ||||
| 			// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
 | ||||
| 			} else if (game.monoTextures[mono.img]) { | ||||
| 				src = URL.createObjectURL(game.monoTextures[mono.img]); | ||||
| 				game.monoTextureUrls[mono.img] = src; | ||||
| 			} else { | ||||
| 				const res = await fetch(mono.img); | ||||
| 				const blob = await res.blob(); | ||||
| 				game.monoTextures[mono.img] = blob; | ||||
| 				src = URL.createObjectURL(blob); | ||||
| 				game.monoTextureUrls[mono.img] = src; | ||||
| 			} | ||||
| 
 | ||||
| 			const image = new Image(); | ||||
| 			image.src = src; | ||||
| 			game.render.textures[mono.img] = image; | ||||
| 		} | ||||
| 
 | ||||
| 		return Promise.all(this.monoDefinitions.map(x => loadSingleMonoTexture(x, this))); | ||||
| 	} | ||||
| 
 | ||||
| 	public start() { | ||||
| 		if (!this.loaded) throw new Error('game is not loaded yet'); | ||||
| 
 | ||||
| 		for (let i = 0; i < this.STOCK_MAX; i++) { | ||||
| 			this.stock.push({ | ||||
| 				id: Math.random().toString(), | ||||
| 				mono: this.monoDefinitions.filter(x => x.dropCandidate)[Math.floor(Math.random() * this.monoDefinitions.filter(x => x.dropCandidate).length)], | ||||
| 			}); | ||||
| 		} | ||||
| 		this.emit('changeStock', this.stock); | ||||
| 
 | ||||
| 		// TODO: fusion予約状態のアイテムは光らせるなどの演出をすると楽しそう
 | ||||
| 		let fusionReservedPairs: { bodyA: Matter.Body; bodyB: Matter.Body }[] = []; | ||||
| 
 | ||||
| 		const minCollisionEnergyForSound = 2.5; | ||||
| 		const maxCollisionEnergyForSound = 9; | ||||
| 		const soundPitchMax = 4; | ||||
| 		const soundPitchMin = 0.5; | ||||
| 
 | ||||
| 		Matter.Events.on(this.engine, 'collisionStart', (event) => { | ||||
| 			for (const pairs of event.pairs) { | ||||
| 				const { bodyA, bodyB } = pairs; | ||||
| 				if (bodyA.id === this.overflowCollider.id || bodyB.id === this.overflowCollider.id) { | ||||
| 					if (bodyA.id === this.latestDroppedBodyId || bodyB.id === this.latestDroppedBodyId) { | ||||
| 						continue; | ||||
| 					} | ||||
| 					this.gameOver(); | ||||
| 					break; | ||||
| 				} | ||||
| 				const shouldFusion = (bodyA.label === bodyB.label) && !fusionReservedPairs.some(x => x.bodyA.id === bodyA.id || x.bodyA.id === bodyB.id || x.bodyB.id === bodyA.id || x.bodyB.id === bodyB.id); | ||||
| 				if (shouldFusion) { | ||||
| 					if (this.activeBodyIds.includes(bodyA.id) && this.activeBodyIds.includes(bodyB.id)) { | ||||
| 						this.fusion(bodyA, bodyB); | ||||
| 					} else { | ||||
| 						fusionReservedPairs.push({ bodyA, bodyB }); | ||||
| 						window.setTimeout(() => { | ||||
| 							fusionReservedPairs = fusionReservedPairs.filter(x => x.bodyA.id !== bodyA.id && x.bodyB.id !== bodyB.id); | ||||
| 							this.fusion(bodyA, bodyB); | ||||
| 						}, 100); | ||||
| 					} | ||||
| 				} else { | ||||
| 					const energy = pairs.collision.depth; | ||||
| 					if (energy > minCollisionEnergyForSound) { | ||||
| 						const vol = (Math.min(maxCollisionEnergyForSound, energy - minCollisionEnergyForSound) / maxCollisionEnergyForSound) / 4; | ||||
| 						const pan = ((((bodyA.position.x + bodyB.position.x) / 2) / this.gameWidth) - 0.5) * 2; | ||||
| 						const pitch = soundPitchMin + ((soundPitchMax - soundPitchMin) * (1 - (Math.min(10, energy) / 10))); | ||||
| 						sound.playRaw('syuilo/poi1', vol, pan, pitch); | ||||
| 					} | ||||
| 				} | ||||
| 			} | ||||
| 		}); | ||||
| 
 | ||||
| 		this.comboIntervalId = window.setInterval(() => { | ||||
| 			if (this.latestFusionedAt < Date.now() - this.COMBO_INTERVAL) { | ||||
| 				this.combo = 0; | ||||
| 			} | ||||
| 		}, 500); | ||||
| 	} | ||||
| 
 | ||||
| 	public async load() { | ||||
| 		await this.loadMonoTextures(); | ||||
| 		this.loaded = true; | ||||
| 	} | ||||
| 
 | ||||
| 	public getTextureImageUrl(mono: Mono) { | ||||
| 		// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
 | ||||
| 		if (this.monoTextureUrls[mono.img]) { | ||||
| 			return this.monoTextureUrls[mono.img]; | ||||
| 
 | ||||
| 		// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
 | ||||
| 		} else if (this.monoTextures[mono.img]) { | ||||
| 			// Gameクラス内にキャッシュがある場合はそれを使う
 | ||||
| 			const out = URL.createObjectURL(this.monoTextures[mono.img]); | ||||
| 			this.monoTextureUrls[mono.img] = out; | ||||
| 			return out; | ||||
| 		} else { | ||||
| 			return mono.img; | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	public getActiveMonos() { | ||||
| 		return this.engine.world.bodies.map(x => this.monoDefinitions.find((mono) => mono.id === x.label)!).filter(x => x !== undefined); | ||||
| 	} | ||||
| 
 | ||||
| 	public drop(_x: number) { | ||||
| 		if (this.isGameOver) return; | ||||
| 		if (Date.now() - this.latestDroppedAt < this.DROP_INTERVAL) { | ||||
| 			return; | ||||
| 		} | ||||
| 		const st = this.stock.shift()!; | ||||
| 		this.stock.push({ | ||||
| 			id: Math.random().toString(), | ||||
| 			mono: this.monoDefinitions.filter(x => x.dropCandidate)[Math.floor(Math.random() * this.monoDefinitions.filter(x => x.dropCandidate).length)], | ||||
| 		}); | ||||
| 		this.emit('changeStock', this.stock); | ||||
| 
 | ||||
| 		const x = Math.min(this.gameWidth - this.PLAYAREA_MARGIN - (st.mono.size / 2), Math.max(this.PLAYAREA_MARGIN + (st.mono.size / 2), _x)); | ||||
| 		const body = this.createBody(st.mono, x, 50 + st.mono.size / 2); | ||||
| 		Matter.Composite.add(this.engine.world, body); | ||||
| 		this.activeBodyIds.push(body.id); | ||||
| 		this.latestDroppedBodyId = body.id; | ||||
| 		this.latestDroppedAt = Date.now(); | ||||
| 		this.emit('dropped'); | ||||
| 		this.emit('monoAdded', st.mono); | ||||
| 		const pan = ((x / this.gameWidth) - 0.5) * 2; | ||||
| 		sound.playRaw('syuilo/poi2', 1, pan); | ||||
| 	} | ||||
| 
 | ||||
| 	public dispose() { | ||||
| 		if (this.comboIntervalId) window.clearInterval(this.comboIntervalId); | ||||
| 		Matter.Render.stop(this.render); | ||||
| 		Matter.Runner.stop(this.runner); | ||||
| 		Matter.World.clear(this.engine.world, false); | ||||
| 		Matter.Engine.clear(this.engine); | ||||
| 	} | ||||
| } | ||||
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		Reference in New Issue