Added Eyecon as indicator that Ambient Lighting is enabled

Added ShutdownHook to Lighting Handler to prevent high Brightness Values from being saved

src/main/java/eu/crushedpixel/replaymod/gui/overlay/GuiReplayOverlay.java

@@ -448,6 +448,22 @@ public class GuiReplayOverlay extends Gui {
         }
     }
 
+    /**
+     * Render the eye icon in the bottom right corner of the screen.
+     * @param event Rendered post game overlay
+     */
+    @SubscribeEvent
+    public void renderLightingIndicator(RenderGameOverlayEvent.Post event) {
+        if (event.type != RenderGameOverlayEvent.ElementType.ALL) return;
+        if(ReplayMod.replaySettings.isLightingEnabled() && ReplayHandler.isInReplay()) {
+            mc.renderEngine.bindTexture(replay_gui);
+            GlStateManager.resetColor();
+            GlStateManager.enableAlpha();
+            Gui.drawModalRectWithCustomSizedTexture(WIDTH - 10 - 19, HEIGHT - 10 - 13,
+                    90, 20, 19, 13, TEXTURE_SIZE, TEXTURE_SIZE);
+        }
+    }
+
     /**
      * Dummy interface for GUI on which this replay overlay shall not be rendered.
      */

src/main/java/eu/crushedpixel/replaymod/registry/LightingHandler.java

@@ -7,12 +7,12 @@ import net.minecraft.client.settings.GameSettings.Options;
 
 public class LightingHandler {
 
+    private static final Minecraft mc = Minecraft.getMinecraft();
+
     private static float initialGamma = 0;
 
     private static boolean enabled = false;
-
-    //TODO: Properly reset Gamma on game start
-    //TODO: Properly handle manual gamma changes while in Replay
+    
     public static void setLighting(boolean lighting) {
         if(lighting) {
             if(!enabled) {
@@ -35,4 +35,14 @@ public class LightingHandler {
         }
     }
 
+    static {
+        Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
+            @Override
+            public void run() {
+                mc.gameSettings.gammaSetting = initialGamma;
+                mc.gameSettings.saveOptions();
+            }
+        }, "lighting-handler-shutdown-hook"));
+    }
+
 }

src/main/java/eu/crushedpixel/replaymod/utils/TooltipRenderer.java

@@ -3,6 +3,7 @@ package eu.crushedpixel.replaymod.utils;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.Gui;
 import net.minecraft.client.gui.GuiScreen;
+import org.lwjgl.util.Point;
 
 public class TooltipRenderer extends Gui {
 
@@ -17,8 +18,9 @@ public class TooltipRenderer extends Gui {
 
         int screenWidth, screenHeight;
         if(parent == null) {
-            screenWidth = mc.displayWidth;
-            screenHeight = mc.displayHeight;
+            Point screenDimensions = MouseUtils.getScaledDimensions();
+            screenWidth = screenDimensions.getX();
+            screenHeight = screenDimensions.getY();
         } else {
             screenWidth = parent.width;
             screenHeight = parent.height;