/**
 * Mesh Superset - The apiMesh properties get moved into the Mesh object itself, and then the instance is created
 * @param graphics GameLib.GraphicsRuntime
 * @param apiMesh GameLib.D3.API.Mesh
 * @param lineWidth
 * @constructor
 */
GameLib.D3.Mesh.Line = function (
    graphics,
    apiMesh,
    lineWidth
) {
    this.graphics = graphics;
    this.graphics.isNotThreeThrow();

    if (GameLib.Utils.UndefinedOrNull(apiMesh)) {
        apiMesh = {
            meshType: GameLib.D3.API.Mesh.MESH_TYPE_LINE
        };
    }

    if (apiMesh instanceof GameLib.D3.Mesh.Line) {
        return apiMesh;
    }

    if (GameLib.Utils.UndefinedOrNull(lineWidth)) {
        lineWidth = 1;
    }
    this.lineWidth = lineWidth;

    GameLib.D3.Mesh.call(
        this,
        this.graphics,
        apiMesh
    );
};

GameLib.D3.Mesh.Line.prototype = Object.create(GameLib.D3.Mesh.prototype);
GameLib.D3.Mesh.Line.prototype.constructor = GameLib.D3.Mesh.Line;

GameLib.D3.Mesh.Line.prototype.createInstance = function() {

    var geometry = new THREE.Geometry();

    geometry.vertices.push(
        this.vertices.map(
            function(vertex){
                return vertex.instance;
            }
        )
    );

    this.instance = new THREE.Line(geometry);

    GameLib.D3.Mesh.prototype.createInstance.call(this);

    this.instance.userData.lineWidth = this.lineWidth;
};

GameLib.D3.Mesh.Line.prototype.updateInstance = function(property) {

    this.instance.linewidth = this.lineWidth;

    GameLib.D3.Mesh.prototype.updateInstance.call(this, property);

};

/**
 * Converts a GameLib.D3.Mesh to a GameLib.D3.API.Mesh
 * @returns {GameLib.D3.API.Mesh}
 */
GameLib.D3.Mesh.Line.prototype.toApiObject = function() {

    var apiMesh = GameLib.D3.Mesh.prototype.toApiObject.call(this);

    apiMesh.lineWidth   = this.lineWidth;

    return apiMesh;
};

/**
 * Converts a standard object mesh to a GameLib.D3.Mesh
 * @param graphics GameLib.GraphicsRuntime
 * @param objectMesh {Object}
 * @constructor
 */
GameLib.D3.Mesh.Line.FromObject = function(graphics, objectMesh) {

    var apiMesh = GameLib.D3.API.Mesh.FromObject(objectMesh);

    return new GameLib.D3.Mesh.Line(
        graphics,
        apiMesh,
        objectMesh.lineWidth
    );

};