Added Camera.roundPixels support, plus argument to 'follow' and setRoundPixels() method.

Author: photonstorm

v3/src/camera/Camera.js

@@ -8,7 +8,9 @@ var Camera = function (x, y, width, height)
     this.width = width;
     this.height = height;
 
+    this.roundPixels = false;
     this.useBounds = false;
+
     this._bounds = new Rectangle();
 
     this.scrollX = 0.0;
@@ -129,14 +131,19 @@ Camera.prototype = {
         }
     },
 
-    startFollow: function (gameObjectOrPoint)
+    startFollow: function (gameObjectOrPoint, roundPx)
     {
         if (this._follow !== null)
         {
             this.stopFollow();
         }
 
         this._follow = gameObjectOrPoint;
+
+        if (roundPx !== undefined)
+        {
+            this.roundPixels = roundPx;
+        }
     },
 
     stopFollow: function ()
@@ -145,6 +152,13 @@ Camera.prototype = {
         this._follow = null;
     },
 
+    setRoundPixels: function (value)
+    {
+        this.roundPixels = value;
+
+        return this;
+    },
+
     flash: function (duration, red, green, blue, force)
     {
         if (!force && this._flashAlpha > 0.0)
@@ -218,7 +232,7 @@ Camera.prototype = {
         var originY = height / 2;
         var follow = this._follow;
 
-        if (follow != null)
+        if (follow !== null)
         {
             originX = follow.x;
             originY = follow.y;
@@ -235,25 +249,31 @@ Camera.prototype = {
             var boundsR = Math.max(bounds.right - width, width);
             var boundsB = Math.max(bounds.bottom - height, height);
 
-            if (this.scrollX < bounds.x)
+            if (this.scrollX < boundsX)
             {
-                this.scrollX = bounds.x;
+                this.scrollX = boundsX;
             }
             if (this.scrollX > boundsR)
             {
                 this.scrollX = boundsR;
             }
 
-            if (this.scrollY < bounds.y)
+            if (this.scrollY < boundsY)
             {
-                this.scrollY = bounds.y;
+                this.scrollY = boundsY;
             }
             if (this.scrollY > boundsB)
             {
                 this.scrollY = boundsB;
             }
         }
 
+        if (this.roundPixels)
+        {
+            this.scrollX = Math.round(this.scrollX);
+            this.scrollY = Math.round(this.scrollY);
+        }
+
         matrix.loadIdentity();
         matrix.translate(this.x + originX, this.y + originY);
         matrix.rotate(this.rotation);

v3/src/checksum.js

@@ -1,4 +1,4 @@
 var CHECKSUM = {
-build: '541299d0-5a78-11e7-bceb-fd404c07e0b9'
+build: 'adb03e70-5a7d-11e7-8ee9-f7ee67d93c13'
 };
 module.exports = CHECKSUM;