BelajarAFrame/23-PyhsicsScripting.html at main · hadziq/BelajarAFrame · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Skripting Fisika</title>
    <script src="https://aframe.io/releases/1.0.4/aframe.min.js"></script>
    <script src="https://cdn.jsdelivr.net/gh/n5ro/aframe-physics-system@v4.0.1/dist/aframe-physics-system.min.js"></script>
</head>
<body>
    <script>
        AFRAME.registerComponent("pushableobject", {
            init:function() {
                let el = this.el;
                el.addEventListener("collide", function(ev) {
                    console.log("%c" + ev.srcElement.id, "font-size:2em");
                });
                el.addEventListener("click", function() {
                    let positionObject = el.getAttribute("position");
                    let positionVector = new THREE.Vector3(positionObject.x, positionObject.y, positionObject.z);

                    let camPosObject = document.querySelector("#cam").getAttribute("position");
                    let camPosVector = new THREE.Vector3(camPosObject.x, camPosObject.y, camPosObject.z);

                    // Besaran direction dipengaruhi oleh jarak kamera ke object
                    let direction = camPosVector.sub(positionVector);
                    direction = direction.normalize();  // Jadi vektor unit
                    let speed = -10;
                    direction = direction.multiplyScalar(speed);
                    // Fungsi di bawah ini ada di Cannon.js
                    el.body.applyImpulse(
                        new CANNON.Vec3(direction.x, 0, direction.z),  // ke arah z- (menjauh dari kamera)
                        new CANNON.Vec3().copy(positionVector)
                    );
                });
            }
        });
    </script>
    <a-scene physics="debug:true">
        <a-camera id="cam">
            <a-cursor></a-cursor>
        </a-camera>
        <a-box
            shadow rotation="-90 0 0"
            color="#888"
            static-body
            width="10"
            height="10"
            depth="0.2"
            position="0 0 -5"
        ></a-box>
        <!-- Massa dynamic-body by default adalah 5 -->
        <a-sphere id="merah" pushableobject radius="0.2" color="red" shadow dynamic-body="mass:5;" position="0 1.5 -3"></a-sphere>
        <a-sphere id="hijau" pushableobject radius="0.2" color="green" shadow dynamic-body="mass:50;" position="2 1.5 -5"></a-sphere>
        <a-sphere id="biru" pushableobject radius="0.2" color="blue" shadow dynamic-body="mass:500;" position="-2 1.5 -5"></a-sphere>
</body>
</html>