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example2.js
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example2.js
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import {screenToWorld} from './js/intersectionUtils'
import {Engine} from './js/engine';
import './js/lodash';
function resize(e) {
$canvas.innerWidth = e.target.innerWidth;
$canvas.innerHeight = e.target.innerHeight;
engine.resize();
}
function hoverOnMouseMove(e) {
engine.scene.children.forEach(child => {
updateMaterial(child, .5);
});
const intersections = screenToWorld(e.offsetX, e.offsetY, $canvas.innerWidth, $canvas.innerHeight, engine.scene.children, engine.camera);
if (intersections[0]) {
const hovered = intersections[0].object.parent;
updateMaterial(hovered, 1);
$title.innerHTML = `Click to select ${hovered._id}`
} else {
$title.innerHTML = 'Select one';
}
}
function playOnClick(e) {
const intersections = screenToWorld(e.offsetX, e.offsetY, $canvas.innerWidth, $canvas.innerHeight, engine.scene.children, engine.camera);
if (intersections[0]) {
$canvas.removeEventListener('click', playOnClick);
$canvas.removeEventListener('mousemove', hoverOnMouseMove);
const selection = intersections[0].object.parent;
const computerChoiceId = ['rock', 'paper', 'scissors'][Math.random()*3|0];
let computerChoice = _.filter(engine.scene.children, child => child._id === computerChoiceId)[0];
let backupColorsDict = backupMaterials([selection, computerChoice]);
if (selection === computerChoice) {
updateMaterial(selection, 1, new THREE.Color('yellow'));
} else {
updateMaterial(selection, 1, new THREE.Color('blue'));
updateMaterial(computerChoice, 1, new THREE.Color('purple'));
}
const result = rpsResolver(selection._id, computerChoiceId);
if (result === 'win') {
$title.innerHTML = `${selection._id} beats ${computerChoice._id}, you win ✅`;
} else if (result === 'lose') {
$title.innerHTML = `${computerChoice._id} beats ${selection._id}, you lose ❌`;
} else {
$title.innerHTML = `You both chose ${selection._id}, it is a tie 👻`;
}
setTimeout(function resetGame() {
updateColorsFromDict(selection, backupColorsDict);
updateColorsFromDict(computerChoice, backupColorsDict);
$title.innerHTML = 'Choose again';
$canvas.addEventListener('click', playOnClick, false);
$canvas.addEventListener('mousemove', hoverOnMouseMove, false);
}, 3000);
}
}
function updateColorsFromDict(model, dict) {
model.children.forEach(mesh => {
if (_.isArray(mesh.material)) {
mesh.material.forEach(m => {
m.color = dict[m.id];
});
} else {
mesh.material.color = dict[mesh.material.id];
}
});
}
function backupMaterials(list) {
const dict = {};
list.forEach(item => {
item.children.forEach(mesh => {
if (_.isArray(mesh.material)) {
mesh.material.forEach(m => {
dict[m.id] = m.color.clone();
});
} else {
dict[mesh.material.id] = mesh.material.color.clone();
}
});
});
return dict;
}
function rpsResolver(p1, p2) {
return p1 === p2 ? 'tie' : (p1 === 'rock' ? (p2 == 'paper' ? 'lose' : 'win') : (p1 === 'paper' ? (p2 === 'scissors' ? 'lose': 'win') : (p2 === 'rock' ? 'lose' : 'win')));
}
function updateMaterial(group, opacity, color) {
if (group.type != 'Group') return [];
group.children.forEach(mesh => {
if (_.isArray(mesh.material)) {
mesh.material.forEach(material => {
material.transparent = true;
material.opacity = opacity;
if (color) material.color = color;
})
} else {
mesh.material.transparent = true;
mesh.material.opacity = opacity;
if (color) mesh.material.color = color;
}
});
}
const $title = document.getElementById("result");
const $canvas = document.getElementById("example2_canvas");
$canvas.innerWidth = window.innerWidth;
$canvas.innerHeight = window.innerHeight;
const engine = new Engine($canvas, () => {});
engine.camera.position.y = 10;
engine.camera.position.z = -5;
engine.init({
asyncModels: [
{
id: 'rock',
path: 'assets/rock/',
mtlFileName: 'Rock1.mtl',
objFileName: 'Rock1.obj',
position: [4, 0, 0],
animation: function(model, camera, delta) {
model.rotation.y += delta/1000;
model.rotation.z += delta/1000;
}
},
{
id: 'paper',
path: 'assets/paper/',
objFileName: 'paper_airplane.obj',
position: [0, 0, 0],
scale: [40, 40, 40],
animation: function(model, camera, delta) {
model.rotation.y -= delta/1000;
}
},
{
id: 'scissors',
path: 'assets/scissors/',
mtlFileName: 'scissors.mtl',
objFileName: 'scissors.obj',
position: [-3, 0, 0],
scale: [.6, .6, .6],
rotation: [0, 0, 0],
animation: function(model, camera, delta) {
model.rotation.z += delta/1000;
}
},
]
}).animate();
$canvas.addEventListener('click', playOnClick, false);
$canvas.addEventListener('mousemove', hoverOnMouseMove, false);
window.addEventListener('resize', resize, false);