implement stats.min.js, improve fps

libraries/stats.min.js

@@ -0,0 +1,5 @@
+// stats.js - http://github.com/mrdoob/stats.js
+(function(f,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"===typeof define&&define.amd?define(e):f.Stats=e()})(this,function(){var f=function(){function e(a){c.appendChild(a.dom);return a}function u(a){for(var d=0;d<c.children.length;d++)c.children[d].style.display=d===a?"block":"none";l=a}var l=0,c=document.createElement("div");c.style.cssText="position:fixed;top:0;left:0;cursor:pointer;opacity:0.9;z-index:10000";c.addEventListener("click",function(a){a.preventDefault();
+    u(++l%c.children.length)},!1);var k=(performance||Date).now(),g=k,a=0,r=e(new f.Panel("FPS","#0ff","#002")),h=e(new f.Panel("MS","#0f0","#020"));if(self.performance&&self.performance.memory)var t=e(new f.Panel("MB","#f08","#201"));u(0);return{REVISION:16,dom:c,addPanel:e,showPanel:u,begin:function(){k=(performance||Date).now()},end:function(){a++;var c=(performance||Date).now();h.update(c-k,200);if(c>=g+1E3&&(r.update(1E3*a/(c-g),100),g=c,a=0,t)){var d=performance.memory;t.update(d.usedJSHeapSize/
+        1048576,d.jsHeapSizeLimit/1048576)}return c},update:function(){k=this.end()},domElement:c,setMode:u}};f.Panel=function(e,f,l){var c=Infinity,k=0,g=Math.round,a=g(window.devicePixelRatio||1),r=80*a,h=48*a,t=3*a,v=2*a,d=3*a,m=15*a,n=74*a,p=30*a,q=document.createElement("canvas");q.width=r;q.height=h;q.style.cssText="width:80px;height:48px";var b=q.getContext("2d");b.font="bold "+9*a+"px Helvetica,Arial,sans-serif";b.textBaseline="top";b.fillStyle=l;b.fillRect(0,0,r,h);b.fillStyle=f;b.fillText(e,t,v);
+    b.fillRect(d,m,n,p);b.fillStyle=l;b.globalAlpha=.9;b.fillRect(d,m,n,p);return{dom:q,update:function(h,w){c=Math.min(c,h);k=Math.max(k,h);b.fillStyle=l;b.globalAlpha=1;b.fillRect(0,0,r,m);b.fillStyle=f;b.fillText(g(h)+" "+e+" ("+g(c)+"-"+g(k)+")",t,v);b.drawImage(q,d+a,m,n-a,p,d,m,n-a,p);b.fillRect(d+n-a,m,a,p);b.fillStyle=l;b.globalAlpha=.9;b.fillRect(d+n-a,m,a,g((1-h/w)*p))}}};return f});

src/js/net/minecraft/client/GameWindow.js

@@ -8,9 +8,16 @@ window.GameWindow = class {
         this.mouseMotionY = 0;
         this.mouseLocked = false;
 
+        let wrapper = document.getElementById(this.canvasWrapperId);
+
+        // Stats
+        this.stats = new Stats()
+        this.stats.showPanel(1);
+        wrapper.appendChild(this.stats.dom);
+
         // Add web renderer canvas to wrapper
         let canvas = renderer.canvasElement;
-        document.getElementById(this.canvasWrapperId).appendChild(canvas);
+        wrapper.appendChild(canvas);
 
         // Init
         this.onResize();

src/js/net/minecraft/client/Minecraft.js

@@ -42,6 +42,8 @@ window.Minecraft = class {
     }
 
     onLoop() {
+        this.window.stats.begin();
+
         // Update the timer
         this.timer.advanceTime();
 
@@ -63,6 +65,8 @@ window.Minecraft = class {
             this.lastTime += 1000;
             this.frames = 0;
         }
+
+        this.window.stats.end();
     }
 
     onRender(partialTicks) {
@@ -84,27 +88,29 @@ window.Minecraft = class {
     }
 
     onMouseClicked(button) {
-        let hitResult = this.player.rayTrace(5, this.timer.partialTicks);
+        if (this.window.mouseLocked) {
+            let hitResult = this.player.rayTrace(5, this.timer.partialTicks);
 
-        // Destroy block
-        if (button === 0) {
-            if (hitResult != null) {
-                this.world.setBlockAt(hitResult.x, hitResult.y, hitResult.z, 0);
+            // Destroy block
+            if (button === 0) {
+                if (hitResult != null) {
+                    this.world.setBlockAt(hitResult.x, hitResult.y, hitResult.z, 0);
+                }
             }
-        }
 
-        // Place block
-        if (button === 2) {
-            if (hitResult != null) {
-                let x = hitResult.x + hitResult.face.x;
-                let y = hitResult.y + hitResult.face.y;
-                let z = hitResult.z + hitResult.face.z;
+            // Place block
+            if (button === 2) {
+                if (hitResult != null) {
+                    let x = hitResult.x + hitResult.face.x;
+                    let y = hitResult.y + hitResult.face.y;
+                    let z = hitResult.z + hitResult.face.z;
 
-                let placedBoundingBox = new BoundingBox(x, y, z, x + 1, y + 1, z + 1);
+                    let placedBoundingBox = new BoundingBox(x, y, z, x + 1, y + 1, z + 1);
 
-                // Don't place blocks if the player is standing there
-                if (!placedBoundingBox.intersects(this.player.boundingBox)) {
-                    this.world.setBlockAt(x, y, z, 1);
+                    // Don't place blocks if the player is standing there
+                    if (!placedBoundingBox.intersects(this.player.boundingBox)) {
+                        this.world.setBlockAt(x, y, z, 1);
+                    }
                 }
             }
         }

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

@@ -16,14 +16,9 @@ window.BlockRenderer = class {
 
             // Check if face is hidden by other block
             if (block.shouldRenderFace(world, x, y, z, face)) {
-                // Start drawing
-                this.tessellator.startDrawing();
 
                 // Render face
                 this.renderFace(world, block, boundingBox, face, x, y, z);
-
-                // Draw
-                this.tessellator.draw(group);
             }
         }
     }

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

@@ -6,8 +6,6 @@ window.Tessellator = class {
             side: THREE.BackSide,
             transparent: true
         });
-
-        this.index = new THREE.BufferAttribute(new Uint32Array([0, 2, 1, 0, 3, 2]), 1);
     }
 
     bindTexture(texture) {
@@ -50,7 +48,19 @@ window.Tessellator = class {
         geometry.setAttribute('position', new THREE.BufferAttribute(new Float32Array(this.vertices), 3));
         geometry.setAttribute('color', new THREE.BufferAttribute(new Float32Array(this.colors), 3));
         geometry.setAttribute('uv', new THREE.BufferAttribute(new Float32Array(this.uv), 2));
-        geometry.setIndex(this.index);
+
+        // Create index array
+        let index = [];
+        let verticesPerFace = 4;
+        for (let i = 0; i < this.addedVertices / verticesPerFace; i++) {
+            index.push(i * verticesPerFace + 0);
+            index.push(i * verticesPerFace + 2);
+            index.push(i * verticesPerFace + 1);
+            index.push(i * verticesPerFace + 0);
+            index.push(i * verticesPerFace + 3);
+            index.push(i * verticesPerFace + 2);
+        }
+        geometry.setIndex(new THREE.BufferAttribute(new Uint32Array(index), 1));
 
         let mesh = new THREE.Mesh(geometry, this.material);
         group.matrixAutoUpdate = false;

src/js/net/minecraft/client/world/ChunkSection.js

@@ -26,6 +26,10 @@ window.ChunkSection = class {
         this.dirty = false;
         this.group.clear();
 
+        // Start drawing chunk section
+        let tessellator = renderer.blockRenderer.tessellator;
+        tessellator.startDrawing();
+
         for (let x = 0; x < ChunkSection.SIZE; x++) {
             for (let y = 0; y < ChunkSection.SIZE; y++) {
                 for (let z = 0; z < ChunkSection.SIZE; z++) {
@@ -42,6 +46,9 @@ window.ChunkSection = class {
                 }
             }
         }
+
+        // Draw chunk section
+        tessellator.draw(this.group);
     }
 
     getBlockAt(x, y, z) {

src/start.js

@@ -45,6 +45,7 @@ function updatePreStatus(message) {
 loadScripts([
     // Dependencies
     "libraries/three.min.js",
+    "libraries/stats.min.js",
 
     // Minecraft Source
     "src/js/net/minecraft/util/EnumBlockFace.js",