fixed lightmap having wrong opacity (#351)

Author: Vegita2

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
+### Fixed
+- Fixed lightmap rendering using inverted black values
+
 ## [2.4.0] 2026-05-15
 ### Added
 - Added "Render lights" toggle to show how lights would look ingame

webapp/src/app/services/phaser/lightmap.ts

@@ -115,7 +115,7 @@ export class Lightmap extends Phaser.GameObjects.GameObject {
 			...weatherTypes.NONE,
 			...weatherTypes[map.attributes.weather],
 		};
-		this.renderTexture.alpha = 1 - weatherType.lightMapDarkness;
+		this.renderTexture.alpha = weatherType.lightMapDarkness;
 
 		const glowColor = Phaser.Display.Color.HexStringToColor(weatherType.glowColor).color;
 		const tileSize = Globals.TILE_SIZE;