function math2_node_init() {
	array_push(nodes_material_utilities, math2_node_def);
	map_set(parser_material_node_values, "MATH", math2_node_value);
}

function math2_node_value(node: ui_node_t, socket: ui_node_socket_t): string {
	let val1: string          = parser_material_parse_value_input(node.inputs[0]);
	let val2: string          = parser_material_parse_value_input(node.inputs[1]);
	let but: ui_node_button_t = node.buttons[0]; // operation
	let op: string            = to_upper_case(u8_array_string_at(but.data, but.default_value[0]));
	op                        = string_replace_all(op, " ", "_");
	let use_clamp: bool       = node.buttons[1].default_value[0] > 0;
	let out_val: string       = "";
	if (op == "ADD") {
		out_val = "(" + val1 + " + " + val2 + ")";
	}
	else if (op == "SUBTRACT") {
		out_val = "(" + val1 + " - " + val2 + ")";
	}
	else if (op == "MULTIPLY") {
		out_val = "(" + val1 + " * " + val2 + ")";
	}
	else if (op == "DIVIDE") {
		let store: string = parser_material_store_var_name(node) + "_divide";
		parser_material_write(parser_material_kong, "var " + store + ": float = " + val2 + ";");
		parser_material_write(parser_material_kong, "if (" + store + " == 0.0) { " + store + " = " + parser_material_eps + "; }");
		out_val = "(" + val1 + " / " + store + ")";
	}
	else if (op == "POWER") {
		out_val = "pow(" + val1 + ", " + val2 + ")";
	}
	else if (op == "LOGARITHM") {
		out_val = "log(" + val1 + ")";
	}
	else if (op == "SQUARE_ROOT") {
		out_val = "sqrt(" + val1 + ")";
	}
	else if (op == "INVERSE_SQUARE_ROOT") {
		out_val = "rsqrt(" + val1 + ")";
	}
	else if (op == "EXPONENT") {
		out_val = "exp(" + val1 + ")";
	}
	else if (op == "ABSOLUTE") {
		out_val = "abs(" + val1 + ")";
	}
	else if (op == "MINIMUM") {
		out_val = "min(" + val1 + ", " + val2 + ")";
	}
	else if (op == "MAXIMUM") {
		out_val = "max(" + val1 + ", " + val2 + ")";
	}
	else if (op == "LESS_THAN") {
		// out_val = "float(" + val1 + " < " + val2 + ")";
		let store: string = parser_material_store_var_name(node) + "_lessthan";
		parser_material_write(parser_material_kong, "var " + store + ": float = 0.0;");
		parser_material_write(parser_material_kong, "if (" + val1 + " < " + val2 + ") { " + store + " = 1.0; }");
		out_val = store;
	}
	else if (op == "GREATER_THAN") {
		// out_val = "float(" + val1 + " > " + val2 + ")";
		let store: string = parser_material_store_var_name(node) + "_greaterthan";
		parser_material_write(parser_material_kong, "var " + store + ": float = 0.0;");
		parser_material_write(parser_material_kong, "if (" + val1 + " > " + val2 + ") { " + store + " = 1.0; }");
		out_val = store;
	}
	else if (op == "SIGN") {
		out_val = "sign(" + val1 + ")";
	}
	else if (op == "ROUND") {
		out_val = "floor(" + val1 + " + 0.5)";
	}
	else if (op == "FLOOR") {
		out_val = "floor(" + val1 + ")";
	}
	else if (op == "CEIL") {
		out_val = "ceil(" + val1 + ")";
	}
	else if (op == "SNAP") {
		out_val = "(floor(" + val1 + " / " + val2 + ") * " + val2 + ")";
	}
	else if (op == "TRUNCATE") {
		out_val = "trunc(" + val1 + ")";
	}
	else if (op == "FRACTION") {
		out_val = "frac(" + val1 + ")";
	}
	else if (op == "MODULO") {
		out_val = "(" + val1 + " % " + val2 + ")";
	}
	else if (op == "PING-PONG") {
		let store: string = parser_material_store_var_name(node) + "_pingpong";
		parser_material_write(parser_material_kong, "var " + store + ": float = 0.0;");
		parser_material_write(parser_material_kong, "if (" + val2 + " != 0.0) { " + store + " = abs(frac((" + val1 + " - " + val2 + ") / (" + val2 +
		                                                " * 2.0)) * " + val2 + " * 2.0 - " + val2 + "); }");
		out_val = store;
	}
	else if (op == "SINE") {
		out_val = "sin(" + val1 + ")";
	}
	else if (op == "COSINE") {
		out_val = "cos(" + val1 + ")";
	}
	else if (op == "TANGENT") {
		out_val = "tan(" + val1 + ")";
	}
	else if (op == "ARCSINE") {
		out_val = "asin(" + val1 + ")";
	}
	else if (op == "ARCCOSINE") {
		out_val = "acos(" + val1 + ")";
	}
	else if (op == "ARCTANGENT") {
		out_val = "atan(" + val1 + ")";
	}
	else if (op == "ARCTAN2") {
		out_val = "atan2(" + val1 + ", " + val2 + ")";
	}
	else if (op == "HYPERBOLIC_SINE") {
		out_val = "sinh(" + val1 + ")";
	}
	else if (op == "HYPERBOLIC_COSINE") {
		out_val = "cosh(" + val1 + ")";
	}
	else if (op == "HYPERBOLIC_TANGENT") {
		out_val = "tanh(" + val1 + ")";
	}
	else if (op == "TO_RADIANS") {
		out_val = "radians(" + val1 + ")";
	}
	else if (op == "TO_DEGREES") {
		out_val = "degrees(" + val1 + ")";
	}
	if (use_clamp) {
		return "clamp(" + out_val + ", 0.0, 1.0)";
	}
	else {
		return out_val;
	}
}

let math2_node_def: ui_node_t = {
	id : 0,
	name : _tr("Math"),
	type : "MATH",
	x : 0,
	y : 0,
	color : 0xff62676d,
	inputs : [
		{
			id : 0,
			node_id : 0,
			name : _tr("Value"),
			type : "VALUE",
			color : 0xffa1a1a1,
			default_value : f32_array_create_x(0.5),
			min : 0.0,
			max : 1.0,
			precision : 100,
			display : 0
		},
		{
			id : 0,
			node_id : 0,
			name : _tr("Value"),
			type : "VALUE",
			color : 0xffa1a1a1,
			default_value : f32_array_create_x(0.5),
			min : 0.0,
			max : 1.0,
			precision : 100,
			display : 0
		}
	],
	outputs : [ {
		id : 0,
		node_id : 0,
		name : _tr("Value"),
		type : "VALUE",
		color : 0xffa1a1a1,
		default_value : f32_array_create_x(0.0),
		min : 0.0,
		max : 1.0,
		precision : 100,
		display : 0
	} ],
	buttons : [
		{
			name : _tr("operation"),
			type : "ENUM",
			output : 0,
			default_value : f32_array_create_x(0),
			data : u8_array_create_from_string(
			    _tr("Add") + "\n" + _tr("Subtract") + "\n" + _tr("Multiply") + "\n" + _tr("Divide") + "\n" + _tr("Power") + "\n" + _tr("Logarithm") + "\n" +
			    _tr("Square Root") + "\n" + _tr("Inverse Square Root") + "\n" + _tr("Absolute") + "\n" + _tr("Exponent") + "\n" + _tr("Minimum") + "\n" +
			    _tr("Maximum") + "\n" + _tr("Less Than") + "\n" + _tr("Greater Than") + "\n" + _tr("Sign") + "\n" + _tr("Round") + "\n" + _tr("Floor") + "\n" +
			    _tr("Ceil") + "\n" + _tr("Truncate") + "\n" + _tr("Fraction") + "\n" + _tr("Modulo") + "\n" + _tr("Snap") + "\n" + _tr("Ping-Pong") + "\n" +
			    _tr("Sine") + "\n" + _tr("Cosine") + "\n" + _tr("Tangent") + "\n" + _tr("Arcsine") + "\n" + _tr("Arccosine") + "\n" + _tr("Arctangent") + "\n" +
			    _tr("Arctan2") + "\n" + _tr("Hyperbolic Sine") + "\n" + _tr("Hyperbolic Cosine") + "\n" + _tr("Hyperbolic Tangent") + "\n" + _tr("To Radians") +
			    "\n" + _tr("To Degrees")),
			min : 0.0,
			max : 1.0,
			precision : 100,
			height : 0
		},
		{
			name : _tr("Clamp"),
			type : "BOOL",
			output : 0,
			default_value : f32_array_create_x(0),
			data : null,
			min : 0.0,
			max : 1.0,
			precision : 100,
			height : 0
		}
	],
	width : 0,
	flags : 0
};