height maps

src/game-lib-game.js

@@ -44,7 +44,7 @@ GameLib.D3.Game.prototype.update = function(
         for(var w in scene.worlds) {
             var world = scene.worlds[w];
             // NOTE: We are calling the step function with a variable timestep!
-            world.step(dt);
+            world.step(fixedDt, dt);
         }
 
         scene.update(dt);

src/game-lib-vector-3.js

@@ -66,6 +66,12 @@ GameLib.D3.Vector3.prototype.copy = function () {
     );
 };
 
+GameLib.D3.Vector3.prototype.set = function (x, y, z) {
+    this.x = x;
+    this.y = y;
+    this.z = z;
+};
+
 GameLib.D3.Vector3.prototype.lerp = function ( v, alpha ) {
     return new GameLib.D3.Vector3(
         this.x + ( v.x - this.x ) * alpha,

src/game-lib-world.js

@@ -103,8 +103,13 @@ GameLib.D3.World.prototype.addVehicle = function(
 };
 
 GameLib.D3.World.prototype.step = function(
-    timeStep
+    fixedStep,
+    dtStep
 ) {
+    this.instance.step(fixedStep, dtStep, 3);
+    return;
+
+
     // todo: figure out, why this call to internal step is more stable for trimesh collisions.....
     //this.instance.internalStep(timeStep);
     //return;