implement shading

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

@@ -2,8 +2,10 @@ window.Tessellator = class {
 
     constructor() {
         this.material = new THREE.MeshBasicMaterial({
+            vertexColors: THREE.VertexColors,
             color: 0xffffff,
-            side: THREE.BackSide
+            side: THREE.BackSide,
+            overdraw: 1
         });
     }
 
@@ -15,6 +17,13 @@ window.Tessellator = class {
         this.addedVertices = 0;
         this.vertices = [];
         this.uv = [];
+        this.colors = [];
+    }
+
+    setColor(red, green, blue) {
+        this.red = red;
+        this.green = green;
+        this.blue = blue;
     }
 
     addVertexWithUV(x, y, z, u, v) {
@@ -28,11 +37,17 @@ window.Tessellator = class {
         // Add UV
         this.uv.push(u);
         this.uv.push(v);
+
+        // Add colors
+        this.colors.push(this.red);
+        this.colors.push(this.green);
+        this.colors.push(this.blue);
     }
 
     draw(group) {
         let geometry = new THREE.BufferGeometry();
         geometry.setAttribute('position', new THREE.BufferAttribute(new Float32Array(this.vertices), 3));
+        geometry.addAttribute('color', new THREE.BufferAttribute(new Float32Array(this.colors), 3));
         geometry.setAttribute('uv', new THREE.BufferAttribute(new Float32Array(this.uv), 2));
         geometry.setIndex(new THREE.BufferAttribute(new Uint32Array([0, 2, 1, 0, 3, 2]), 1));