for (float i = 0.0f; i < 0.5f; i += 0.01f) {
            this.leftWing.addBox(0.0f, -6.0f, 0.0f, 0, 32, 32, i);
            this.rightWing.addBox(0.0f, -6.0f, 0.0f, 0, 32, 32, i);
        }