japanese-drum-game/public/src/js/mekadon.js

class Mekadon{
	constructor(controller, game){
		this.controller = controller
		this.game = game
		this.lr = false
		this.keys = {}
		this.lastHit = -Infinity
	}
	play(circle){
		var type = circle.getType()
		if(type == "balloon"){
			this.playDrumrollAt(circle, 0, 30)
		}else if(type == "drumroll" || type == "daiDrumroll"){
			this.playDrumrollAt(circle, 0, 60)
		}else{
			this.playAt(circle, 0, 450)
		}
	}
	playAt(circle, ms, score){
		var currentMs = circle.getMS() - this.getMS()
		if(ms > currentMs - 10){
			return this.playNow(circle, score)
		}
	}
	playDrumrollAt(circle, ms, pace){
		if(pace && this.getMS() >= this.lastHit + pace){
			this.playAt(circle, ms)
		}
	}
	miss(circle){
		var currentMs = circle.getMS() - this.getMS()
		if(0 >= currentMs - 10){
			this.controller.displayScore(0, true)
			this.game.updateCurrentCircle()
			this.game.updateCombo(0)
			this.game.updateGlobalScore(0)
			return true
		}
	}
	playNow(circle, score){
		var kbd = this.controller.getBindings()
		var type = circle.getType()
		if(type == "don" || type == "balloon" || type == "drumroll" || type == "daiDrumroll"){
			this.setKey(this.lr ? kbd["don_l"] : kbd["don_r"])
			this.lr = !this.lr
		}else if(type == "daiDon"){
			this.setKey(kbd["don_l"])
			this.setKey(kbd["don_r"])
			this.lr = false
		}else if(type == "ka"){
			this.setKey(this.lr ? kbd["ka_l"] : kbd["ka_r"])
			this.lr = !this.lr
		}else if(type == "daiKa"){
			this.setKey(kbd["ka_l"])
			this.setKey(kbd["ka_r"])
			this.lr = false
		}
		if(type == "balloon"){
			if(circle.requiredHits == 1){
				assets.sounds["balloon"].play()
			}
			this.game.checkBalloon(circle)
		}else if(type == "drumroll" || type == "daiDrumroll"){
			this.game.checkDrumroll(circle)
		}else{
			if(typeof score == "undefined"){
				score = this.game.checkScore(circle)
			}else{
				this.controller.displayScore(score)
				this.game.updateCombo(score)
				this.game.updateGlobalScore(score)
				this.game.updateCurrentCircle()
			}
			circle.updateStatus(score)
			circle.played(score)
		}
		this.lastHit = this.getMS()
		return true
	}
	getMS(){
		return this.controller.getElapsedTime().ms
	}
	setKey(keyCode){
		var self = this
		if(this.keys[keyCode]){
			clearTimeout(this.keys[keyCode])
			self.clearKey(keyCode)
		}
		this.controller.setKey(keyCode, true)
		this.keys[keyCode] = setTimeout(function(){
			self.clearKey(keyCode)
		}, 100)
	}
	clearKey(keyCode){
		this.controller.setKey(keyCode, false)
		delete this.keys[keyCode]
	}
}