r3-legacy/src/r3-d3-shape-box.js

/**
 * Shape Superset - The apiShape properties get moved into the Shape object itself, and then the instance is created
 * @param physics
 * @param apiShape R3.D3.API.Shape
 * @param halfExtents
 * @constructor
 */
R3.D3.Shape.Box = function (
	physics,
    apiShape,
    halfExtents
) {
    this.physics = physics;
    this.physics.isNotCannonThrow();

    if (R3.Utils.UndefinedOrNull(apiShape)) {
        apiShape = {
            shapeType : R3.D3.API.Shape.SHAPE_TYPE_BOX
        };
    }

    if (R3.Utils.UndefinedOrNull(halfExtents)) {
        halfExtents = new R3.Vector3(
            physics,
            new R3.API.Vector3(
                1,1,1
            )
        );
    } else if (halfExtents instanceof R3.API.Vector3) {
        halfExtents = new R3.Vector3(
            this.physics,
            halfExtents,
            this
        )
    }
    this.halfExtents = halfExtents;

    R3.D3.Shape.call(
        this,
        this.physics,
        apiShape
    );
};

R3.D3.Shape.Box.prototype = Object.create(R3.D3.Shape.prototype);
R3.D3.Shape.Box.prototype.constructor = R3.D3.Shape.Box;

/**
 *
 * @returns {R3.D3.Shape.Box|*|SEA3D.Box}
 */
R3.D3.Shape.Box.prototype.createInstance = function() {

    if (R3.Utils.UndefinedOrNull(this.halfExtents)) {
        throw new Error('no halfExtents');
    }

    if (R3.Utils.UndefinedOrNull(this.halfExtents.instance)) {
        throw new Error('no halfExtents instance');
    }

    this.instance = new CANNON.Box(
		this.halfExtents.instance
	);

    R3.D3.Shape.prototype.createInstance.call(this);

};

R3.D3.Shape.Box.prototype.updateInstance = function() {
    this.instance.halfExtents.x = this.halfExtents.x;
    this.instance.halfExtents.y = this.halfExtents.y;
    this.instance.halfExtents.z = this.halfExtents.z;
	this.instance.updateBoundingSphereRadius();
	this.instance.updateConvexPolyhedronRepresentation();
};

R3.D3.Shape.Box.prototype.toApiObject = function() {

    var apiShape = R3.D3.Shape.prototype.toApiObject.call(this);

    apiShape.halfExtents = this.halfExtents.toApiObject();

    return apiShape;
};

R3.D3.Shape.Box.prototype.setFromMesh = function() {

    if (this.parentMesh === null) {
        console.log('select a mesh first');
        return;
    }

    var box = this.parentMesh.getBoundingBox();

    this.halfExtents.x = box.x / 2;
    this.halfExtents.y = box.y / 2;
    this.halfExtents.z = box.z / 2;

    this.halfExtents.updateInstance();
};

R3.D3.Shape.Box.FromObject = function(physics, objectShape) {

    var apiShape = R3.D3.API.Shape.FromObject(objectShape);

    apiShape.halfExtents = R3.API.Vector3.FromObject(objectShape.halfExtents);

    return new R3.D3.Shape.Box(
        physics,
        apiShape,
        apiShape.halfExtents
    );

};