implement new terrain generator, cave generator, tree generator, implement big tree generator, improve light update performance

src/js/net/minecraft/client/render/BlockRenderer.js

@@ -68,6 +68,9 @@ export default class BlockRenderer {
             this.tessellator.setColor(color, color, color);
         }
 
+        // Set opacity of block
+        this.tessellator.setAlpha(1 - block.getTransparency());
+
         // Add face to tessellator
         this.addFace(world, face, ambientOcclusion, minX, minY, minZ, maxX, maxY, maxZ, minU, minV, maxU, maxV);
     }
@@ -129,7 +132,7 @@ export default class BlockRenderer {
         let color = brightness * face.getShading();
 
         // Set color with shading
-        this.tessellator.setColor(color, color, color);
+        this.tessellator.setColorRGB(color, color, color);
     }
 
     getAverageLightLevelAt(world, x, y, z) {

src/js/net/minecraft/client/render/Tessellator.js

@@ -25,10 +25,18 @@ export default class Tessellator {
         this.colors = [];
     }
 
-    setColor(red, green, blue, alpha = 1) {
+    setColorRGB(red, green, blue) {
         this.red = red;
         this.green = green;
         this.blue = blue;
+    }
+
+    setColor(red, green, blue, alpha = 1) {
+        this.setColorRGB(red, green, blue);
+        this.setAlpha(alpha);
+    }
+
+    setAlpha(alpha) {
         this.alpha = alpha;
     }
 

src/js/net/minecraft/client/render/WorldRenderer.js

@@ -540,8 +540,8 @@ export default class WorldRenderer {
         let renderDistance = WorldRenderer.RENDER_DISTANCE;
 
         // Load chunks
-        for (let x = -renderDistance; x <= renderDistance; x++) {
-            for (let z = -renderDistance; z <= renderDistance; z++) {
+        for (let x = -renderDistance + 1; x < renderDistance; x++) {
+            for (let z = -renderDistance + 1; z < renderDistance; z++) {
                 world.getChunkAt(cameraChunkX + x, cameraChunkZ + z);
             }
         }
@@ -580,6 +580,16 @@ export default class WorldRenderer {
             } else {
                 // Hide chunk
                 chunk.group.visible = false;
+
+                // Unload chunk
+                if (chunk.loaded) {
+                    chunk.unload();
+
+                    // TODO Implement chunk unloading
+                    //let index = chunk.x + (chunk.z << 16);
+                    //world.chunks.delete(index);
+                    //world.group.add(chunk.group);
+                }
             }
         }