aframe-click-drag-component/examples/physics-2/index.html
2016-10-04 17:46:38 +11:00

83 lines
3.2 KiB
HTML

<html>
<head>
<title>A-Frame Click & Drag Component - Physics 2</title>
<script src="../build.js"></script>
</head>
<body>
<a-scene physics="debug: true">
<a-sphere
click-drag
dynamic-body="mass: 100"
position="0 3 -1"
radius="1.25"
color="#EF2D5E"
>
</a-sphere>
<a-box dynamic-body="mass: 0.1" position="-2.8 0.6 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="-1.4 0.6 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="0 0.6 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="1.4 0.6 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="2.8 0.6 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="-2 1.7 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="-0.7 1.7 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="0.7 1.7 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="2 1.7 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="-1.4 2.8 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="0 2.8 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="1.4 2.8 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="-0.7 3.9 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="0.7 3.9 -8" color="#EF2D5E"></a-box>
<a-box dynamic-body="mass: 0.1" position="0 5 -8" color="#EF2D5E"></a-box>
<a-plane static-body rotation="-90 0 0" width="200" height="200" color="#7BC8A4"></a-plane>
<a-sky color="#ECECEC"></a-sky>
<a-entity position="0 0 3.8">
<a-camera look-controls-enabled="false" keyboard-controls="fpsMode: true"></a-camera>
</a-entity>
<script>
var draggable = document.querySelector('[click-drag]');
draggable.addEventListener('dragstart', function(dragInfo) {
draggable.pause();
});
draggable.addEventListener('dragend', function(dragInfo) {
// We're dealing with a very heavy ball (mass: 100), so we want to
// reduce the velocity a little
var velocityDamp = 0.3;
var camera = draggable.sceneEl.camera;
// The "up" vector of the camera
var rotation = camera.up.clone();
// crossed with the "forward" / direction vector of the camera
// gives us the 3rd orthogonal axis of the camera's rotation
rotation.cross(camera.getWorldDirection());
// A damped down velocity vector
var rotatedVelocity = new window.AFRAME.THREE.Vector3(
dragInfo.detail.velocity.x * velocityDamp,
dragInfo.detail.velocity.y * velocityDamp,
dragInfo.detail.velocity.z * velocityDamp
);
// Which we then rotate *into* the screen by 45 degrees
// This gives the feeling of "tossing" the ball
rotatedVelocity.applyAxisAngle(rotation, Math.PI / 8);
draggable.play();
draggable.body.velocity.set(rotatedVelocity.x, rotatedVelocity.y, rotatedVelocity.z);
});
</script>
</a-scene>
</body>
</html>