const RADIUS = 10; const SEGMENTS = 40; const ballPhysics = new PHYSICS.SphereModule({ mass: 2, friction: 0.5, }); const ball = new WHS.Sphere({ geometry: { radius: RADIUS, widthSegments: SEGMENTS, heightSegments: SEGMENTS, }, position: { z: -30, y: 10 }, material: new THREE.MeshLambertMaterial({ color: 0xFFFFFF, emissive: 0xFF0000, emissiveIntensity: 0.4, }), modules: [ new WHS.TextureModule({ url: 'assets/textures/fire.jpg', }), ballPhysics, ], }); ball.physics = ballPhysics; ball.addTo(app); camera.native.target = ball.native; ball.checkLife = () => { if (ball.position.x > ground.geometry.parameters.width / 2 || ball.position.x < -ground.geometry.parameters.width / 2 || ball.position.z < -ground.SIZE) { location.reload(); } } (function fire() { const FIRE_HEIGHT = 35; const FIRE_HEIGHT_RANDOMNESS = 0.4; const SPREAD_SPEED = 5; new THREE.Geometry(); var particleCount = 20000, particles = new THREE.Geometry(), pMaterial = new THREE.PointsMaterial({ size: 1.5, blending: THREE.AdditiveBlending, transparent: true, vertexColors: THREE.VertexColors, opacity: 0.3, }); new THREE.Geometry(); var spriteCount = 3000, sprites = new THREE.Geometry(), spriteMap = new THREE.TextureLoader().load('assets/textures/fire-sprite-small.png'), spriteMaterial = new THREE.PointsMaterial({ blending: THREE.AdditiveBlending, transparent: true, opacity: 0.5, size: 5, map: spriteMap, color: 0xffffff, }); const radius = ball.params.geometry.radius; const start = ball.position; for (var p = 0; p < particleCount; p++) { var pX = start.x + THREE.Math.randFloatSpread(radius), pY = start.y + THREE.Math.randFloatSpread(radius), pZ = start.z + THREE.Math.randFloatSpread(radius), particle = new THREE.Vector3(pX, pY, pZ) particle.lifetime = Math.random() < 0.5 ? 0 : ball.params.geometry.radius + THREE.Math.randFloat(0.5, 1 + FIRE_HEIGHT_RANDOMNESS) * FIRE_HEIGHT; particles.vertices.push(particle); particles.colors.push(new THREE.Color(1, 0, 0)); } for (var i = 0; i < spriteCount; i++) { var pX = start.x + THREE.Math.randFloatSpread(radius), pY = start.y + THREE.Math.randFloatSpread(radius), pZ = start.z + THREE.Math.randFloatSpread(radius), particle = new THREE.Vector3(pX, pY, pZ) particle.lifetime = Math.random() < 0.5 ? 0 : ball.params.geometry.radius + THREE.Math.randFloat(0.5, 1 + FIRE_HEIGHT_RANDOMNESS) * FIRE_HEIGHT; sprites.vertices.push(particle); } // create the particle system var points = WHS.MeshComponent.from(new THREE.Points(particles, pMaterial)); var spritesPoints = WHS.MeshComponent.from(new THREE.Points(sprites, spriteMaterial)); ball.fire = [points, spritesPoints]; ball.fire.forEach(fire => { fire.addTo(app); }) app.physics.addEventListener('update', function() { const velocity = ball.physics.getLinearVelocity(); ball.fire.forEach(fire => { fire.position.set( ball.position.x, ball.position.y - ball.params.geometry.radius, ball.position.z + ball.params.geometry.radius * 3 ); fire.geometry.vertices.forEach((v, i) => { let x = v.x + THREE.Math.randFloatSpread(SPREAD_SPEED) + velocity.x * -0.02; let y = v.y + THREE.Math.randFloat(0, SPREAD_SPEED / 4); let z = v.z + THREE.Math.randFloatSpread(SPREAD_SPEED) + velocity.z * -0.01; v.set(x, y, z); if (!v.isSmoke && fire.material.vertexColors === THREE.VertexColors) { fire.geometry.colors[i].offsetHSL(7e-4, 0, 0); } if (v.y >= v.lifetime) { if (!v.isSmoke && fire.material.vertexColors === THREE.VertexColors) { v.isSmoke = true; fire.geometry.colors[i].setHex(0x444444) v.lifetime += FIRE_HEIGHT * 0.5; } else { y = Math.min(radius, radius * velocity.z / -50); x = 0; z = -ball.params.geometry.radius * 3; v.lifetime = ball.params.geometry.radius + THREE.Math.randFloat(1, 1 + FIRE_HEIGHT_RANDOMNESS) * FIRE_HEIGHT; v.set(x, y, z); v.isSmoke = false; if (fire.material.vertexColors === THREE.VertexColors) { const r = THREE.Math.randFloat(0.8, 1); const g = THREE.Math.randFloat(0, 0.2); const b = THREE.Math.randFloat(0, 0.2); fire.geometry.colors[i].setRGB(r, g, b); } } } }); if (fire.material.vertexColors === THREE.VertexColors) { fire.geometry.colorsNeedUpdate = true; } fire.geometry.verticesNeedUpdate = true; }); }); const fireLight = new WHS.PointLight({ color: 0xff0000, intensity: 5, }); ball.fireLight = fireLight; ball.add(fireLight); }()); let hits = 0; ball.on('collision', (o, v, r, cn) => { if (o.uuid === ground.native.uuid) return; rand(audio.impacts).play(); hits++; GUI.setHits(hits); });