/**
 * TriangleFace
 * @param v0
 * @param v1
 * @param v2
 * @param materialIndex
 * @param v0uv
 * @param v1uv
 * @param v2uv
 * @param color
 * @param vertexColors
 * @param vertexNormals
 * @param normal
 * @constructor
 */
GameLib.D3.TriangleFace = function(
    v0,
    v1,
    v2,
    materialIndex,
    v0uv,
    v1uv,
    v2uv,
    color,
    vertexColors,
    vertexNormals,
    normal
) {
    this.v0 = v0;
    this.v1 = v1;
    this.v2 = v2;
    this.materialIndex = materialIndex;
    this.v0uv = v0uv;
    this.v1uv = v1uv;
    this.v2uv = v2uv;
    if (!color) {
        color = new GameLib.D3.Color(0xff, 0xff, 0xff, 0xff);
    }
    this.color = color;

    if (!vertexColors) {
        vertexColors = [
            new GameLib.D3.Color(0xff, 0xff, 0xff, 0xff),
            new GameLib.D3.Color(0xff, 0xff, 0xff, 0xff),
            new GameLib.D3.Color(0xff, 0xff, 0xff, 0xff)
        ];
    }
    this.vertexColors = vertexColors;

    if (!vertexNormals) {
        vertexNormals = [
            new GameLib.D3.Vector3(),
            new GameLib.D3.Vector3(),
            new GameLib.D3.Vector3()
        ]
    }
    this.vertexNormals = vertexNormals;

    if (!normal) {
        normal = new GameLib.D3.Vector3(0);
    }

    this.normal = normal;
};

/**
 * Clone a TriangleFace
 * @returns {GameLib.D3.TriangleFace}
 */
GameLib.D3.TriangleFace.prototype.clone = function(){
    return new GameLib.D3.TriangleFace(
        this.v0,
        this.v1,
        this.v2,
        this.materialIndex,
        this.v0uv.copy(),
        this.v1uv.copy(),
        this.v2uv.copy()
    );
};

/**
 * Returns true if two triangles are equal (their vertex indices match in some order)
 * @param triangle
 * @returns {boolean}
 */
GameLib.D3.TriangleFace.prototype.equals = function(triangle) {
    return !!(
    (
        (this.v0 == triangle.v0) &&
        (this.v1 == triangle.v1) &&
        (this.v2 == triangle.v2)
    )
    ||
    (
        (this.v0 == triangle.v0) &&
        (this.v1 == triangle.v2) &&
        (this.v2 == triangle.v1)
    )
    ||
    (
        (this.v0 == triangle.v1) &&
        (this.v1 == triangle.v0) &&
        (this.v2 == triangle.v2)
    )
    ||
    (
        (this.v0 == triangle.v1) &&
        (this.v1 == triangle.v2) &&
        (this.v2 == triangle.v0)
    )
    ||
    (
        (this.v0 == triangle.v2) &&
        (this.v1 == triangle.v0) &&
        (this.v2 == triangle.v1)
    )
    ||
    (
        (this.v0 == triangle.v2) &&
        (this.v1 == triangle.v1) &&
        (this.v2 == triangle.v0)
    ));
};