package arm.node.brush;

@:keep
class MathNode extends LogicNode {

	public var operation: String;
	public var use_clamp: Bool;

	public function new(tree: LogicTree) {
		super(tree);
	}

	override function get(from: Int): Dynamic {

		var v1: Float = inputs[0].get();
		var v2: Float = inputs[1].get();
		var f = 0.0;
		switch (operation) {
		case "Add":
			f = v1 + v2;
		case "Multiply":
			f = v1 * v2;
		case "Sine":
			f = Math.sin(v1);
		case "Cosine":
			f = Math.cos(v1);
		case "Max":
			f = Math.max(v1, v2);
		case "Min":
			f = Math.min(v1, v2);
		case "Absolute":
			f = Math.abs(v1);
		case "Subtract":
			f = v1 - v2;
		case "Divide":
			f = v1 / (v2 == 0.0 ? 0.000001 : v2);
		case "Tangent":
			f = Math.tan(v1);
		case "Arcsine":
			f = Math.asin(v1);
		case "Arccosine":
			f = Math.acos(v1);
		case "Arctangent":
			f = Math.atan(v1);
		case "Arctan2":
		    f = Math.atan2(v2, v1);
		case "Power":
			f = Math.pow(v1, v2);
		case "Logarithm":
			f = Math.log(v1);
		case "Round":
			f = Math.round(v1);
		case "Floor":
		    f = Math.floor(v1);
		case "Ceil":
		    f = Math.ceil(v1);
		case "Truncate":
			f = Math.ffloor(v1);
		case "Fraction":
		    f = v1 - Math.floor(v1);
		case "Less Than":
			f = v1 < v2 ? 1.0 : 0.0;
		case "Greater Than":
			f = v1 > v2 ? 1.0 : 0.0;
		case "Modulo":
			f = v1 % v2;
		case "Snap":
			f = Math.floor(v1 / v2) * v2;
		case "Square Root":
		    f = Math.sqrt(v1);
		case "Inverse Square Root":
			f = 1.0 / Math.sqrt(v1);
		case "Exponent":
			f = Math.exp(v1);
		case "Sign":
			f = v1 > 0 ? 1.0 : (v1 < 0 ? -1.0 : 0);
		case "Ping-Pong":
		    f = (v2 != 0.0) ? v2 - Math.abs((Math.abs(v1) % (2 * v2)) - v2) : 0.0;
		case "Hyperbolic Sine":
			f = (Math.exp(v1) - Math.exp(-v1)) / 2.0;
		case "Hyperbolic Cosine":
			f = (Math.exp(v1) + Math.exp(-v1)) / 2.0;
		case "Hyperbolic Tangent":
			f = 1.0 - (2.0 / (Math.exp(2 * v1) + 1));
		case "To Radians":
			f = v1 / 180.0 * Math.PI;
		case "To Degrees":
			f = v1 / Math.PI * 180.0;
		}

		if (use_clamp) f = f < 0.0 ? 0.0 : (f > 1.0 ? 1.0 : f);

		return f;
	}
}