3D Game Programming

avatar.position.set(-50, 50, 0);

scene.add(avatar);

avatar.setAngularFactor(new THREE.Vector3( 0, 0, 0 )); // no rotation

avatar.setLinearFactor(new THREE.Vector3( 1, 1, 0 )); // only move on X/Y axes

avatar.setLinearVelocity(new THREE.Vector3(0, 150, 0));

avatar.addEventListener('collision', function(object) {

if (object.is_fruit) {

scoreboard.addPoints(10);

avatar.setLinearVelocity(new THREE.Vector3(0, 50, 0));

scene.remove(object);

}

if (object == ground) {

game_over = true;

scoreboard.message("Game Over!");

}

});

return avatar;

}

function addScoreboard() {

var scoreboard = new Scoreboard();

scoreboard.score(0);

scoreboard.help('Use arrow keys to move and the space bar to jump');

return scoreboard;

}

var game_over = false;

function animate() {

if (game_over) return;

requestAnimationFrame(animate);

scene.simulate(); // run physics

renderer.render(scene, camera);

}

function gameStep() {

if (game_over) return;

launchFruit();

setTimeout(gameStep, 3*1000);

}

function launchFruit() {

var fruit = new Physijs.ConvexMesh(

new THREE.CylinderGeometry(20, 20, 1, 24),

new THREE.MeshBasicMaterial({visible: false})

);

var material = new THREE.MeshBasicMaterial({

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Code: The Purple Fruit Monster Game • 247

Prepared exclusively for Michael Powell