[#355] workaround for the Tile texture rendering seam issue

src/level/TMXTileset.js

@@ -239,7 +239,7 @@
                 offset.x, offset.y,
                 this.tilewidth, this.tileheight,
                 dx, dy,
-                this.tilewidth, this.tileheight
+                this.tilewidth + renderer.uvOffset, this.tileheight + renderer.uvOffset
             );
 
             if (tmxTile.flipped)  {

src/video/canvas/canvas_renderer.js

@@ -20,6 +20,7 @@
      * @param {Boolean} [options.doubleBuffering=false] Whether to enable double buffering
      * @param {Boolean} [options.antiAlias=false] Whether to enable anti-aliasing
      * @param {Boolean} [options.transparent=false] Whether to enable transparency on the canvas (performance hit when enabled)
+     * @param {Boolean} [options.textureSeamFix=true] enable the texture seam fix when rendering Tile when antiAlias is off for the canvasRenderer
      * @param {Number} [options.zoomX=width] The actual width of the canvas with scaling applied
      * @param {Number} [options.zoomY=height] The actual height of the canvas with scaling applied
      */
@@ -59,6 +60,11 @@
             // create a texture cache
             this.cache = new me.Renderer.TextureCache();
 
+            if (options.textureSeamFix !== false  && !this.antiAlias) {
+                // enable the tile texture seam fix with the canvas renderer
+                this.uvOffset = 1;
+            }
+
             return this;
         },
 

src/video/renderer.js

@@ -47,6 +47,9 @@
             // global color
             this.currentColor = new me.Color(255, 255, 255, 1.0);
 
+            // default uvOffset
+            this.uvOffset = 0;
+
             return this;
         },