/**
 * GameLib.D3.API.Geometry.Buffer.Ring
 * @param apiGeometry
 * @param innerRadius
 * @param outerRadius
 * @param thetaSegments
 * @param phiSegments
 * @param thetaStart
 * @param thetaLength
 * @constructor
 */
GameLib.D3.API.Geometry.Buffer.Ring = function(
    apiGeometry,
    innerRadius,
    outerRadius,
    thetaSegments,
    phiSegments,
    thetaStart,
    thetaLength
) {

    if (GameLib.Utils.UndefinedOrNull(apiGeometry)) {
        apiGeometry = {
            geometryType: GameLib.D3.API.Geometry.GEOMETRY_TYPE_BUFFER_RING
        };
    }

    if (GameLib.Utils.UndefinedOrNull(apiGeometry.geometryType)) {
        apiGeometry.geometryType = GameLib.D3.API.Geometry.GEOMETRY_TYPE_BUFFER_RING;
    }

    if (GameLib.Utils.UndefinedOrNull(innerRadius)) {
        innerRadius = 0.5;
    }
    this.innerRadius = innerRadius;

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

    if (GameLib.Utils.UndefinedOrNull(thetaSegments)) {
        thetaSegments = 8;
    }
    this.thetaSegments = thetaSegments;

    if (GameLib.Utils.UndefinedOrNull(phiSegments)) {
        phiSegments = 8;
    }
    this.phiSegments = phiSegments;

    if (GameLib.Utils.UndefinedOrNull(thetaStart)) {
        thetaStart = 0;
    }
    this.thetaStart = thetaStart;

    if (GameLib.Utils.UndefinedOrNull(thetaLength)) {
        thetaLength = Math.PI * 2;
    }
    this.thetaLength = thetaLength;

    GameLib.D3.API.Geometry.Buffer.call(
        this,
        apiGeometry,
        apiGeometry.attributes,
        apiGeometry.drawRange,
        apiGeometry.groups,
        apiGeometry.index,
        apiGeometry.morphAttributes
    );
};

GameLib.D3.API.Geometry.Buffer.Ring.prototype = Object.create(GameLib.D3.API.Geometry.Buffer.prototype);
GameLib.D3.API.Geometry.Buffer.Ring.prototype.constructor = GameLib.D3.API.Geometry.Buffer.Ring;