Class syntax

paper-io-bot.js

@@ -69,8 +69,8 @@ function update(frame) {
 			weights[dir] = 100;
 			weights[mod(dir + 2)] = -9999;
 
-			for (let nd = 0; nd < 4; nd++) {
+			for (var nd = 0; nd < 4; nd++) {
-				for (let S = 1; S < 20; S++) {
+				for (var S = 1; S < 20; S++) {
 					var nr = MOVES[nd][0] * S + row;
 					var nc = MOVES[nd][1] * S + col;
 
@@ -82,7 +82,7 @@ function update(frame) {
 						if (grid.get(nr, nc) !== user) weights[nd]--;
 
 						var tailed = undefined;
-						for (let o of others) {
+						for (var o of others) {
 							if (o.tail.hitsTail(new Loc(nr, nc))) {
 								tailed = o;
 								break;
@@ -99,8 +99,8 @@ function update(frame) {
 
 			//View a selection of choices based on the weights we computed
 			var choices = [];
-			for (let d = 0; d < 4; d++) {
+			for (var d = 0; d < 4; d++) {
-				for (let S = 1; S < weights[d]; S++) {
+				for (var S = 1; S < weights[d]; S++) {
 					choices.push(d);
 				}
 			}
@@ -135,8 +135,8 @@ function update(frame) {
 			weights[dir] = 50;
 			weights[mod(dir + 2)] = -9999;
 
-			for (let nd = 0; nd < 4; nd++) {
+			for (var nd = 0; nd < 4; nd++) {
-				for (let S = 1; S < 20; S++) {
+				for (var S = 1; S < 20; S++) {
 					var nr = MOVES[nd][0] * S + row;
 					var nc = MOVES[nd][1] * S + col;
 
@@ -153,7 +153,7 @@ function update(frame) {
 						if (grid.get(nr, nc) === user) weights[nd] += 10 + S;
 
 						var tailed = undefined;
-						for (let o of others) {
+						for (var o of others) {
 							if (o.tail.hitsTail(new Loc(nr, nc))) {
 								tailed = o;
 								break;
@@ -170,8 +170,8 @@ function update(frame) {
 
 			//View a selection of choices based on the weights we computed
 			var choices = [];
-			for (let d = 0; d < 4; d++) {
+			for (var d = 0; d < 4; d++) {
-				for (let S = 1; S < weights[d]; S++) {
+				for (var S = 1; S < weights[d]; S++) {
 					choices.push(d);
 				}
 			}

src/core/color.js

@@ -24,7 +24,9 @@ function hslToRgb(h, s, l) {
 	}
 	return [Math.round(r * 255), Math.round(g * 255), Math.round(b * 255)];
 }
-function Color(h, s, l, a) {
+
+class Color {
+    constructor(h, s, l, a) {
         verifyRange(h, s, l);
         if (a === undefined) a = 1;
         else verifyRange(a);
@@ -46,11 +48,9 @@ function Color(h, s, l, a) {
                 enumerable: true
             },
         });
-}
+    }
-Color.fromData = data => {
+
-	return new Color(data.hue, data.sat, data.lum, data.alpha);
+    interpolateToString(color, amount) {
-};
-Color.prototype.interpolateToString = function(color, amount) {
         const rgbThis = hslToRgb(this.hue, this.sat, this.lum);
         const rgbThat = hslToRgb(color.hue, color.sat, color.lum);
         const rgb = [];
@@ -62,29 +62,39 @@ Color.prototype.interpolateToString = function(color, amount) {
                 return `rgb(${rgb[0]}, ${rgb[1]}, ${rgb[2]})`
             }
         };
-};
+    }
-Color.prototype.deriveLumination = function(amount) {
+
+    deriveLumination(amount) {
         let lum = this.lum + amount;
         lum = Math.min(Math.max(lum, 0), 1);
         return new Color(this.hue, this.sat, lum, this.alpha);
-};
+    }
-Color.prototype.deriveHue = function(amount) {
+
+    deriveHue(amount) {
         const hue = this.hue - amount;
         return new Color(hue - Math.floor(hue), this.sat, this.lum, this.alpha);
-};
+    }
-Color.prototype.deriveSaturation = function(amount) {
+
+    deriveSaturation(amount) {
         let sat = this.sat + amount;
         sat = Math.min(Math.max(sat, 0), 1);
         return new Color(this.hue, sat, this.lum, this.alpha);
-};
+    }
-Color.prototype.deriveAlpha = function(newAlpha) {
+
+    deriveAlpha(newAlpha) {
         verifyRange(newAlpha);
         return new Color(this.hue, this.sat, this.lum, newAlpha);
-};
+    }
-Color.prototype.rgbString = function() {
+
+    rgbString() {
         const rgb = hslToRgb(this.hue, this.sat, this.lum);
         rgb[3] = this.a;
         return `rgba(${rgb[0]}, ${rgb[1]}, ${rgb[2]}, ${this.alpha})`;
+    }
+}
+
+Color.fromData = data => {
+	return new Color(data.hue, data.sat, data.lum, data.alpha);
 };
 Color.possColors = () => {
 	const SATS = [192, 150, 100].map(val => val / 240);