add EnvironmentManager and Lighting classes for enhanced environment rendering

src/de/miaurizius/jgame2d/core/GamePanel.java

@@ -6,6 +6,7 @@ import de.miaurizius.jgame2d.core.enums.Map;
 import de.miaurizius.jgame2d.core.handlers.*;
 import de.miaurizius.jgame2d.entity.Entity;
 import de.miaurizius.jgame2d.entity.Player;
+import de.miaurizius.jgame2d.environment.EnvironmentManager;
 import de.miaurizius.jgame2d.tile.TileManager;
 import de.miaurizius.jgame2d.tile.interactive.InteractiveTile;
 
@@ -56,6 +57,7 @@ public class GamePanel extends JPanel implements Runnable {
     public Sound music = new Sound();
     public Config config = new Config(this);
     public PathFinder pFinder = new PathFinder(this);
+    public EnvironmentManager eManager = new EnvironmentManager(this);
     Thread gameThread;
 
     // ENTITY AND OBJECT
@@ -177,6 +179,10 @@ public class GamePanel extends JPanel implements Runnable {
         for(Entity entity : entityList) entity.draw(fg2);
         entityList.clear();
 
+        // ENVIRONMENT
+        eManager.draw(fg2);
+
+        // UI
         ui.draw(fg2);
 
         long drawEnd = System.nanoTime();
@@ -229,6 +235,7 @@ public class GamePanel extends JPanel implements Runnable {
         assetSetter.setNPC();
         assetSetter.setMonster();
         assetSetter.setITiles();
+        eManager.setup();
         gameState = GameState.TITLE;
 
         tempScreen = new BufferedImage(screenWidth, screenHeight, BufferedImage.TYPE_INT_RGB);