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lightsaber.html
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lightsaber.html
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<!doctype html>
<html>
<body>
<script src="js/three.js"></script>
<script src="js/GLTFLoader.js"></script>
<script src="js/BufferGeometryUtils.js"></script>
<script>
(async () => {
const localVector = new THREE.Vector3();
const localVector2 = new THREE.Vector3();
const localQuaternion = new THREE.Quaternion();
const localEuler = new THREE.Euler();
localEuler.order = 'YXZ';
const localMatrix = new THREE.Matrix4();
const localMatrix2 = new THREE.Matrix4();
const localMatrixWorld = new THREE.Matrix4();
const localVector2D = new THREE.Vector2();
const userId = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
const renderer = new THREE.WebGLRenderer({
antialias: true,
alpha: true,
});
renderer.gammaOutput = true;
renderer.gammaFactor = 2.2;
renderer.physicallyCorrectLights = true;
renderer.toneMappingExposure = 1;
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.sortObjects = false;
// renderer.shadowMap.enabled = true;
// renderer.shadowMap.type = THREE.PCFShadowMap;
document.body.appendChild(renderer.domElement);
const scene = new THREE.Scene();
scene.matrixAutoUpdate = false;
const camera = new THREE.PerspectiveCamera(60, window.innerWidth/window.innerHeight, 0.1, 1000);
scene.add(camera);
/* const ambientLight = new THREE.AmbientLight(0x333333, 1);
scene.add(ambientLight); */
const directionalLight = new THREE.DirectionalLight(0xFFFFFF, 3);
directionalLight.position.set(10, 30, 10);
scene.add(directionalLight);
const lightsaberMesh = (() => {
const object = new THREE.Object3D();
const loader = new THREE.GLTFLoader();
loader.load('lightsaber.glb', function(o) {
o = o.scene;
/* o.traverse(e => {
if (e.isMesh) {
e.receiveShadow = true;
}
}); */
// o.updateMatrixWorld();
object.add(o);
}, undefined, function(e) {
console.error(e);
});
const bladeMesh = (() => {
const geometry = THREE.BufferGeometryUtils.mergeBufferGeometries([
new THREE.BoxBufferGeometry(0.01, 0.01, 1).applyMatrix(new THREE.Matrix4().makeTranslation(0, 0, -1/2 - 0.17)),
new THREE.BoxBufferGeometry(0.1, 0.01, 0.01).applyMatrix(new THREE.Matrix4().makeTranslation(-0.1/2 - 0.06, 0, -0.145)),
new THREE.BoxBufferGeometry(0.1, 0.01, 0.01).applyMatrix(new THREE.Matrix4().makeTranslation(0.1/2 + 0.06, 0, -0.145)),
]);
const material = new THREE.MeshPhongMaterial({
// color: 0x800000,
color: 0xFF4040,
});
const mesh = new THREE.Mesh(geometry, material);
mesh.visible = false;
mesh.frustumCulled = false;
return mesh;
})();
bladeMesh.visible = window.document.dataset.get('enabled');
object.add(bladeMesh);
object.grabIndex = -1;
window.document.dataset.addEventListener('change', e => {
const {key, value} = e.detail;
if (key === 'enabled') {
bladeMesh.visible = value;
}
});
object.setState = enabled => {
window.document.dataset.set('enabled', enabled);
};
object.getEquipper = () => window.document.dataset.get('equipper');
object.setEquipper = equipper => {
window.document.dataset.set('equipper', equipper);
};
return object;
})();
scene.add(lightsaberMesh);
const cubeGeometry = new THREE.BoxBufferGeometry(0.02, 0.01, 0.05);
const _makeCubeMesh = () => {
const geometry = cubeGeometry;
const material = new THREE.MeshPhongMaterial({
color: 0x333333,
});
const mesh = new THREE.Mesh(geometry, material);
mesh.frustumCulled = false;
return mesh;
};
const cubeMeshes = [
_makeCubeMesh(),
_makeCubeMesh(),
];
scene.add(cubeMeshes[0]);
scene.add(cubeMeshes[1]);
const cameraCubeMesh = (() => {
const geometry = new THREE.BoxBufferGeometry(0.5, 0.5, 0.5);
const material = new THREE.MeshPhongMaterial({
color: 0x333333,
/* side: THREE.DoubleSide,
transparent: true,
opacity: 0.5, */
});
const mesh = new THREE.Mesh(geometry, material);
mesh.frustumCulled = false;
return mesh;
})()
// scene.add(cameraCubeMesh);
const session = await navigator.xr.requestSession();
session.layers && session.layers.push(renderer.domElement);
session.requestAnimationFrame((timestamp, frame) => {
renderer.vr.setSession(session, {
frameOfReferenceType: 'stage',
});
const pose = frame.getViewerPose();
const viewport = session.baseLayer.getViewport(pose.views[0]);
const height = viewport.height;
const fullWidth = (() => {
let result = 0;
for (let i = 0; i < pose.views.length; i++) {
result += session.baseLayer.getViewport(pose.views[i]).width;
}
return result;
})();
renderer.setSize(fullWidth, height);
renderer.setPixelRatio(1);
renderer.setAnimationLoop(null);
renderer.vr.enabled = true;
renderer.vr.setSession(session);
renderer.vr.setAnimationLoop(animate);
});
const lastPresseds = Array(cubeMeshes.length).fill(false);
const lastGrabbeds = Array(cubeMeshes.length).fill(false);
const _setMatrixWorld = matrixWorld => {
localMatrixWorld
.compose(
localVector.fromArray(window.document.xrOffset.position),
localQuaternion.fromArray(window.document.xrOffset.orientation),
localVector2.set(1, 1, 1)
)
.multiply(matrixWorld)
.decompose(localVector, localQuaternion, localVector2)
window.document.xrOffset.position = localVector.toArray();
window.document.xrOffset.orientation = localQuaternion.toArray();
};
function animate() {
const vrCamera = renderer.vr.enabled ? renderer.vr.getCamera(camera).cameras[0] : camera;
vrCamera.matrixWorld.decompose(vrCamera.position, vrCamera.quaternion, vrCamera.scale);
cameraCubeMesh.position.copy(vrCamera.position).add(localVector2.set(0, -0.5, 0));
const gamepads = navigator.getGamepads();
for (let i = 0; i < gamepads.length && i < cubeMeshes.length; i++) {
const gamepad = gamepads[i];
const cubeMesh = cubeMeshes[i];
if (gamepad && gamepad.connected) {
cubeMesh.position.fromArray(gamepad.pose.position);
cubeMesh.quaternion.fromArray(gamepad.pose.orientation);
cubeMesh.updateMatrixWorld();
if (gamepad.buttons[0].pressed) {
cubeMesh.material.color.setHex(0xFF0000);
} else if (gamepad.buttons[1].pressed) {
cubeMesh.material.color.setHex(0x00FF00);
} else if (gamepad.buttons[2].pressed) {
cubeMesh.material.color.setHex(0x0000FF);
} else if (gamepad.buttons[3].pressed) {
cubeMesh.material.color.setHex(0xFFFF00);
} else if (gamepad.buttons[4].pressed) {
cubeMesh.material.color.setHex(0x00FFFF);
} else {
cubeMesh.material.color.setHex(0x333333);
}
const grabbed = gamepad.buttons[2].pressed;
const lastGrabbed = lastGrabbeds[i];
if (grabbed && !lastGrabbed) {
if (lightsaberMesh.grabIndex === -1) {
const distance = cubeMesh.position.distanceTo(lightsaberMesh.position);
if (distance < 0.16) {
lightsaberMesh.grabIndex = i;
lightsaberMesh.setEquipper(null);
}
}
} else if (!grabbed && lastGrabbed) {
if (lightsaberMesh.grabIndex === i) {
lightsaberMesh.grabIndex = -1;
lightsaberMesh.setState(false);
localMatrix.fromArray(window.document.xrOffset.matrix).decompose(localVector, localQuaternion, localVector2);
const lightsaberWorldPosition = localVector.clone();
localMatrix
.copy(vrCamera.matrixWorld)
.premultiply(
localMatrix2.fromArray(window.document.xrOffset.matrix)//.getInverse(localMatrix2)
)
.decompose(localVector, localQuaternion, localVector2);
const bodyWorldPosition = localVector.add(localVector2.set(0, -0.5, 0)).clone();
const distance = lightsaberWorldPosition.distanceTo(bodyWorldPosition);
localVector2D.set(Math.abs(lightsaberWorldPosition.x - bodyWorldPosition.x), Math.abs(lightsaberWorldPosition.z - bodyWorldPosition.z));
// console.log('equipper distance', localVector2D.length(), Math.abs(lightsaberWorldPosition.y - bodyWorldPosition.y));
if (localVector2D.length() < 0.45 && Math.abs(lightsaberWorldPosition.y - bodyWorldPosition.y) < 0.16) {
// console.log('equipped');
lightsaberMesh.setEquipper(userId);
}
}
}
lastGrabbeds[i] = grabbed;
const pressed = gamepad.buttons[1].pressed;
const lastPressed = lastPresseds[i];
if (lightsaberMesh.grabIndex === i) {
if (pressed && !lastPressed) {
lightsaberMesh.setState(true);
} else if (!pressed && lastPressed) {
lightsaberMesh.setState(false);
}
}
lastPresseds[i] = pressed;
if (lightsaberMesh.grabIndex === i) {
_setMatrixWorld(cubeMeshes[lightsaberMesh.grabIndex].matrixWorld);
}
}
}
if (lightsaberMesh.getEquipper() === userId) {
localMatrix
.copy(vrCamera.matrixWorld)
.premultiply(
localMatrix2.fromArray(window.document.xrOffset.matrix)//.getInverse(localMatrix2)
)
.decompose(localVector, localQuaternion, localVector2);
localEuler.setFromQuaternion(localQuaternion, localEuler.order);
localEuler.x = 0;
localEuler.z = 0;
localQuaternion.setFromEuler(localEuler);
localVector
.add(localVector2.set(0, -0.5, 0))
.add(
localVector2
.set(0.2, 0, 0)
.applyQuaternion(localQuaternion)
);
window.document.xrOffset.position = localVector.toArray();
window.document.xrOffset.orientation = localQuaternion.toArray();
/* _setMatrixWorld(
localMatrix.compose(
localVector,
localQuaternion,
localVector2.set(1, 1, 1)
)
); */
}
renderer.render(scene, camera);
}
})();
</script>
</body>
</html>