From 3687a277a325d1654c27ebecf65dc29093a9b980 Mon Sep 17 00:00:00 2001
From: yairm210 <yairm210@hotmail.com>
Date: Thu, 15 Aug 2024 10:34:56 +0300
Subject: [PATCH] UI: Fade in newly-explored tiles

---
 .../com/unciv/ui/components/tilegroups/TileGroup.kt | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/core/src/com/unciv/ui/components/tilegroups/TileGroup.kt b/core/src/com/unciv/ui/components/tilegroups/TileGroup.kt
index 2c3b81f92e..beeeb6f32e 100644
--- a/core/src/com/unciv/ui/components/tilegroups/TileGroup.kt
+++ b/core/src/com/unciv/ui/components/tilegroups/TileGroup.kt
@@ -2,6 +2,7 @@ package com.unciv.ui.components.tilegroups
 
 import com.badlogic.gdx.graphics.g2d.Batch
 import com.badlogic.gdx.scenes.scene2d.Group
+import com.badlogic.gdx.scenes.scene2d.actions.Actions
 import com.unciv.logic.civilization.Civilization
 import com.unciv.logic.map.tile.Tile
 import com.unciv.models.ruleset.unique.LocalUniqueCache
@@ -103,7 +104,9 @@ open class TileGroup(
         layerOverlay.hideHighlight()
         layerOverlay.hideCrosshair()
         layerOverlay.hideGoodCityLocationIndicator()
-
+        
+        val wasPreviouslyVisible = layerTerrain.isVisible
+        
         // Show all layers by default
         setAllLayersVisible(true)
 
@@ -127,6 +130,14 @@ open class TileGroup(
         layerUnitArt.update(viewingCiv, localUniqueCache)
         layerUnitFlag.update(viewingCiv, localUniqueCache)
         layerCityButton.update(viewingCiv, localUniqueCache)
+        
+        if (!wasPreviouslyVisible){ // newly revealed tile!
+            layerTerrain.parent.addAction( 
+                Actions.sequence(
+                    Actions.targeting(layerTerrain, Actions.alpha(0f)),
+                    Actions.targeting(layerTerrain, Actions.fadeIn(0.5f)),
+                ))
+        }
     }
 
     private fun removeMissingModReferences() {