Simplified/normalized CGFloat easing algorithms. See https://github.com/Geri-Borbas/Unity.Library.eppz_easing for more.

CGFloat+Easing.swift

extension CGFloat {
		
	var linear: CGFloat {
		self
	}
	
	var easeIn_1: CGFloat {
		pow(self, 2)
	}
	
	var easeIn_2: CGFloat {
		pow(self, 3)
	}
	
	var easeIn_3: CGFloat {
		pow(self, 8)
	}

	var easeOut_1: CGFloat {
		1.0 - pow(1.0 - self, 2)
	}
	
	var easeOut_2: CGFloat {
		1.0 - pow(1.0 - self, 4)
	}
	
	var easeOut_3: CGFloat {
		1.0 - pow(1.0 - self, 8)
	}
	
	var easeInOut_1: CGFloat {
		(self < 0.5)
			? 2.0 * pow(self, 2)
			: -2.0 * pow(self, 2) + 4.0 * self - 1.0;
	}
	
	var easeInOut_2: CGFloat {
		(self < 0.5)
			? 4.0 * pow(self, 3)
			: 4.0 * pow(self, 3) - 12.0 * pow(self, 2) + 12.0 * self - 3.0;
	}
	
	var easeInOut_3: CGFloat {
		(self < 0.5)
			? 128.0 * pow(self, 8)
			: 0.5 + (1.0 - pow((1.0 - self) * 2.0, 8)) / 2.0;
	}
}