refactor: remove tjaf dependency; add local TJA parser

public/src/js/gamerules.js

@@ -0,0 +1,77 @@
+class GameRules{
+	constructor(...args){
+		this.init(...args)
+	}
+	init(game){
+		this.difficulty = game.controller.selectedSong.difficulty
+		var frame = 1000 / 60
+		
+		switch(this.difficulty){
+			case "easy":
+			case "normal":
+				this.good = 5 / 2 * frame
+				this.ok = 13 / 2 * frame
+				this.bad = 15 / 2 * frame
+				break
+			case "hard":
+			case "oni":
+			case "ura":
+			default:
+				this.good = 3 / 2 * frame
+				this.ok = 9 / 2 * frame
+				this.bad = 13 / 2 * frame
+				break
+		}
+		switch(this.difficulty){
+			case "easy":
+				this.gaugeClear = 30 / 50
+				break
+			case "normal":
+			case "hard":
+				this.gaugeClear = 35 / 50
+				break
+			case "oni":
+			case "ura":
+				this.gaugeClear = 40 / 50
+				break
+			default:
+				this.gaugeClear = 51 / 50
+				break
+		}
+		
+		this.daiLeniency = 2 * frame
+	}
+	soulPoints(combo){
+		var good, ok, bad
+		switch(this.difficulty){
+			case "easy":
+				good = Math.floor(10000 / combo * 1.575)
+				ok = Math.floor(good * 0.75)
+				bad = Math.ceil(good / -2)
+				break
+			case "normal":
+				good = Math.floor(10000 / combo / 0.7)
+				ok = Math.floor(good * 0.75)
+				bad = Math.ceil(good / -0.75)
+				break
+			case "hard":
+				good = Math.floor(10000 / combo * 1.5)
+				ok = Math.floor(good * 0.75)
+				bad = Math.ceil(good / -0.8)
+				break
+			case "oni":
+			case "ura":
+				good = Math.floor(10000 / combo / 0.7)
+				ok = Math.floor(good * 0.5)
+				bad = Math.ceil(good * -1.6)
+				break
+		}
+		return {good: good, ok: ok, bad: bad}
+	}
+	gaugePercent(gauge){
+		return Math.floor(gauge / 200) / 50
+	}
+	clearReached(gauge){
+		return this.gaugePercent(gauge) >= this.gaugeClear
+	}
+}