3D Game Programming

scene.add(makeBorder(width/-2, 0, 50, height));

scene.add(makeBorder(width/2, 0, 50, height));

scene.add(makeBorder(0, height/2, width, 50));

scene.add(makeBorder(0, height/-2, width, 50));

varavatar =newPhysijs.ConvexMesh(

newTHREE.CylinderGeometry(30, 30, 5, 16),

Physijs.createMaterial(

newTHREE.MeshBasicMaterial({color:0xbb0000}), 0.2, 0.5

)

);

avatar.rotation.set(Math.PI/2, 0, 0);

avatar.position.set(0.5 * width/-2, -height/2 + 25 + 30, 0);

scene.add(avatar);

avatar.setAngularFactor(newTHREE.Vector3( 0, 0, 0 ));// don't rotate

avatar.setLinearFactor(newTHREE.Vector3( 1, 1, 0 )); // only move on X and Y axis

document.addEventListener("keydown",function(event) {

varcode = event.keyCode;

if(code == 37) move(-50);// left arrow

if(code == 39) move(50); // right arrow

});

functionmove(x) {

varv_y = avatar.getLinearVelocity().y,

v_x = avatar.getLinearVelocity().x;

if(Math.abs(v_x + x) > 200)return;

avatar.setLinearVelocity(

newTHREE.Vector3(v_x + x, v_y, 0)

);

}

vargoal =newPhysijs.ConvexMesh(

newTHREE.TorusGeometry(100, 25, 20, 30),

Physijs.createMaterial(

newTHREE.MeshBasicMaterial({color:0x00bb00})

),

0

);

goal.isGoal = true;

functionplaceGoal() {

varx = 0,

rand = Math.random();

if(rand < 0.33) x = width / -2;

if(rand > 0.66) x = width / 2;

goal.position.set(x, height/2, 0);

scene.add(goal);

report erratum • discuss

Code: Multilevel Game • 261

Prepared exclusively for Michael Powell