# all files / src/geometry/ Cube.js

98.25% Statements 56/57
75% Branches 9/12
100% Functions 3/3
98.25% Lines 56/57

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139

    1×

    1×

    35×

    35×

    35×
    35×
    35×
    35×
    210×
    210×

    35×
    105×

    35×
    35×
    35×
    35×
    210×
    210×
    630×
    630×
    630×
    630×
    630×
    7616×
    7616×

    7616×

    210×
    210×
    1644×

    210×
    210×

    35×
    35×
    35×

    210×

    210×

    210×

    35×
    35×
    35×

    35×
    35×
    35×

    35×
    35×
    35×

    35×
    35×
    35×

    35×
    35×

    35×
    35×
    35×

    210×
    210×

     import Geometry from '../Geometry';
    import Plane from './Plane';
    import Matrix4 from '../math/Matrix4';
    import Vector3 from '../math/Vector3';
    import BoundingBox from '../math/BoundingBox';
    import vendor from '../core/vendor';

    var planeMatrix = new Matrix4();

    /**
     * @constructor clay.geometry.Cube
     * @extends clay.Geometry
     * @param {Object} [opt]
     * @param {number} [opt.widthSegments]
     * @param {number} [opt.heightSegments]
     * @param {number} [opt.depthSegments]
     * @param {boolean} [opt.inside]
     */
    var Cube = Geometry.extend(
    /**@lends clay.geometry.Cube# */
    {
        dynamic: false,
        /**
         * @type {number}
         */
        widthSegments: 1,
        /**
         * @type {number}
         */
        heightSegments: 1,
        /**
         * @type {number}
         */
        depthSegments: 1,
        /**
         * @type {boolean}
         */
        inside: false
    }, function() {
        this.build();
    },
    /** @lends clay.geometry.Cube.prototype */
    {
        /**
         * Build cube geometry
         */
        build: function() {

            var planes = {
                'px': createPlane('px', this.depthSegments, this.heightSegments),
                'nx': createPlane('nx', this.depthSegments, this.heightSegments),
                'py': createPlane('py', this.widthSegments, this.depthSegments),
                'ny': createPlane('ny', this.widthSegments, this.depthSegments),
                'pz': createPlane('pz', this.widthSegments, this.heightSegments),
                'nz': createPlane('nz', this.widthSegments, this.heightSegments),
            };

            var attrList = ['position', 'texcoord0', 'normal'];
            var vertexNumber = 0;
            var faceNumber = 0;
            for (var pos in planes) {
                vertexNumber += planes[pos].vertexCount;
                faceNumber += planes[pos].indices.length;
            }
            for (var k = 0; k < attrList.length; k++) {
                this.attributes[attrList[k]].init(vertexNumber);
            }
            this.indices = new vendor.Uint16Array(faceNumber);
            var faceOffset = 0;
            var vertexOffset = 0;
            for (var pos in planes) {
                var plane = planes[pos];
                for (var k = 0; k < attrList.length; k++) {
                    var attrName = attrList[k];
                    var attrArray = plane.attributes[attrName].value;
                    var attrSize = plane.attributes[attrName].size;
                    var isNormal = attrName === 'normal';
                    for (var i = 0; i < attrArray.length; i++) {
                        var value = attrArray[i];
                        Iif (this.inside && isNormal) {
                            value = -value;
                        }
                        this.attributes[attrName].value[i + attrSize * vertexOffset] = value;
                    }
                }
                var len = plane.indices.length;
                for (var i = 0; i < plane.indices.length; i++) {
                    this.indices[i + faceOffset] = vertexOffset + plane.indices[this.inside ? (len - i - 1) : i];
                }
                faceOffset += plane.indices.length;
                vertexOffset += plane.vertexCount;
            }

            this.boundingBox = new BoundingBox();
            this.boundingBox.max.set(1, 1, 1);
            this.boundingBox.min.set(-1, -1, -1);
        }
    });

    function createPlane(pos, widthSegments, heightSegments) {

        planeMatrix.identity();

        var plane = new Plane({
            widthSegments: widthSegments,
            heightSegments: heightSegments
        });

        switch(pos) {
            case 'px':
                Matrix4.translate(planeMatrix, planeMatrix, Vector3.POSITIVE_X);
                Matrix4.rotateY(planeMatrix, planeMatrix, Math.PI / 2);
                break;
            case 'nx':
                Matrix4.translate(planeMatrix, planeMatrix, Vector3.NEGATIVE_X);
                Matrix4.rotateY(planeMatrix, planeMatrix, -Math.PI / 2);
                break;
            case 'py':
                Matrix4.translate(planeMatrix, planeMatrix, Vector3.POSITIVE_Y);
                Matrix4.rotateX(planeMatrix, planeMatrix, -Math.PI / 2);
                break;
            case 'ny':
                Matrix4.translate(planeMatrix, planeMatrix, Vector3.NEGATIVE_Y);
                Matrix4.rotateX(planeMatrix, planeMatrix, Math.PI / 2);
                break;
            case 'pz':
                Matrix4.translate(planeMatrix, planeMatrix, Vector3.POSITIVE_Z);
                break;
            case 'nz':
                Matrix4.translate(planeMatrix, planeMatrix, Vector3.NEGATIVE_Z);
                Matrix4.rotateY(planeMatrix, planeMatrix, Math.PI);
                break;
        }
        plane.applyTransform(planeMatrix);
        return plane;
    }

    export default Cube;