/**
 * Engine Superset
 * @param engineType
 * @param instance {CANNON | Ammo | Goblin}
 * @constructor
 */
R3.D3.Engine = function Engine(
    engineType,
    instance
) {
    this.engineType = engineType;
    this.instance = instance;
};

R3.D3.Engine.prototype.toApiEngine = function() {

    //TODO: create API.Engine sometime
    return {
        engineType : this.engineType
    }
};

/**
 * True if CANNON physics
 * @returns {boolean}
 */
R3.D3.Engine.prototype.isCannon = function() {
    return (this.engineType == R3.D3.Engine.ENGINE_TYPE_CANNON)
};

/**
 * Logs a warning and throws an error if not cannon
 */
R3.D3.Engine.prototype.isNotCannonThrow = function() {
    if (this.engineType != R3.D3.Engine.ENGINE_TYPE_CANNON) {
        console.warn('Only CANNON supported for this function');
        throw new Error('Only CANNON supported for this function');
    }
};

/**
 * True if Ammo physics
 * @returns {boolean}
 */
R3.D3.Engine.prototype.isAmmo = function() {
    return (this.engineType == R3.D3.Engine.ENGINE_TYPE_AMMO)
};

/**
 * True if Goblin physics
 * @returns {boolean}
 */
R3.D3.Engine.prototype.isGoblin = function() {
    return (this.engineType == R3.D3.Engine.ENGINE_TYPE_GOBLIN)
};

/**
 * Physics R3.D3.Engine Types
 * @type {number}
 */
R3.D3.Engine.ENGINE_TYPE_CANNON = 0x1;
R3.D3.Engine.ENGINE_TYPE_AMMO = 0x2;
R3.D3.Engine.ENGINE_TYPE_GOBLIN = 0x3;