From b81bea76986400717f7bba0ea91156191404b8e6 Mon Sep 17 00:00:00 2001
From: MathemanFlo <floh.heinrich@gmail.com>
Date: Mon, 30 Dec 2024 14:10:30 +0100
Subject: [PATCH] Implement replace node

---
 base/sources/nodes_material.ts  | 69 +++++++++++++++++++++++++++++++++
 base/sources/parser_material.ts |  8 ++++
 2 files changed, 77 insertions(+)

diff --git a/base/sources/nodes_material.ts b/base/sources/nodes_material.ts
index 2b896a584..7403c7cfc 100644
--- a/base/sources/nodes_material.ts
+++ b/base/sources/nodes_material.ts
@@ -2484,6 +2484,75 @@ let nodes_material_color: ui_node_t[] = [
 		buttons: [],
 		width: 0
 	},
+	{
+		id: 0,
+		name: _tr("Replace Color"),
+		type: "REPLACECOL",
+		x: 0,
+		y: 0,
+		color: 0xff448c6d,
+		inputs: [
+			{
+				id: 0,
+				node_id: 0,
+				name: _tr("Color"),
+				type: "RGBA",
+				color: 0xffc7c729,
+				default_value: f32_array_create_xyzw(0.8, 0.8, 0.8, 1.0)
+			},
+			{
+				id: 0,
+				node_id: 0,
+				name: _tr("Old Color"),
+				type: "RGBA",
+				color: 0xffc7c729,
+				default_value: f32_array_create_xyzw(0.8, 0.8, 0.8, 1.0)
+			},
+			{
+				id: 0,
+				node_id: 0,
+				name: _tr("New Color"),
+				type: "RGBA",
+				color: 0xffc7c729,
+				default_value: f32_array_create_xyzw(0.8, 0.8, 0.8, 1.0)
+			},
+			{
+				id: 0,
+				node_id: 0,
+				name: _tr("Radius"),
+				type: "VALUE",
+				color: 0xffa1a1a1,
+				default_value: f32_array_create_x(0.1),
+				min: 0.0,
+				max: 1.74,
+				precision: 100,
+				display: 0
+			},
+			{
+				id: 0,
+				node_id: 0,
+				name: _tr("Fuzziness"),
+				type: "VALUE",
+				color: 0xffa1a1a1,
+				default_value: f32_array_create_x(0.0),
+				min: 0.0,
+				max: 1.0,
+				precision: 100,
+				display: 0
+			}
+		],
+		outputs: [
+			{
+				id: 0,
+				node_id: 0,
+				name: _tr("Color"),
+				type: "RGBA",
+				color: 0xffc7c729,
+				default_value: f32_array_create_xyzw(0.8, 0.8, 0.8, 1.0)
+			}
+		],
+		buttons: []
+	},
 	{
 		id: 0,
 		name: _tr("Warp"),
diff --git a/base/sources/parser_material.ts b/base/sources/parser_material.ts
index e97c2886e..0ca9ab376 100644
--- a/base/sources/parser_material.ts
+++ b/base/sources/parser_material.ts
@@ -734,6 +734,14 @@ function parser_material_parse_vector(node: ui_node_t, socket: ui_node_socket_t)
 		let col: string = parser_material_parse_vector_input(node.inputs[1]);
 		return "(floor(100.0 * " + strength + " * " + col + ") / (100.0 * " + strength + "))";
 	}
+	else if (node.type == "REPLACECOL") {
+		let inputColor: string = parser_material_parse_vector_input(node.inputs[0]);
+		let oldColor: string = parser_material_parse_vector_input(node.inputs[1]);
+		let newColor: string = parser_material_parse_vector_input(node.inputs[2]);
+		let radius: string = parser_material_parse_value_input(node.inputs[3]);
+		let fuzziness: string = parser_material_parse_value_input(node.inputs[4]);
+		return "mix(" + newColor + ", " + inputColor + ", clamp((distance(" + oldColor + ", " + inputColor + ") - " + radius + ") / max(" + fuzziness + ", " + parser_material_eps + "), 0.0, 1.0))";
+	}
 	else if (node.type == "VALTORGB") { // ColorRamp
 		let fac: string = parser_material_parse_value_input(node.inputs[0]);
 		let data0: i32 = node.buttons[0].data[0];