Fixed lighting

internal/maps/desert.go

@@ -10,8 +10,20 @@ import (
 
 func CreateDesert(screenWidth, screenHeight float64) *Map {
 	m := NewMap("desert", 2, "Desert", screenWidth, screenHeight)
-	m.BackgroundColor = color.NRGBA{R: 15, G: 20, B: 40, A: 255} // Dark blue night sky
-	m.TimeOfDay = Nighttime
+	m.BackgroundColor = color.NRGBA{R: 15, G: 20, B: 40, A: 255}
+	m.Lighting = LightConfig{
+		AmbientBrightness: 0.1,
+		Sources: []LightSource{
+			{
+				X:              screenWidth - 80,
+				Y:              80,
+				Radius:         450,
+				Color:          color.RGBA{R: 200, G: 220, B: 255, A: 255},
+				Intensity:      0.5,
+				ShadowDarkness: 0.7,
+			},
+		},
+	}
 
 	// ground surface
 	m.World.AddSurface(&world.Surface{