added concept for monsters

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

@@ -48,6 +48,7 @@ public class GamePanel extends JPanel implements Runnable {
     public Player player = new Player(this, keyH);
     public Entity[] obj = new Entity[10];
     public Entity[] npc = new Entity[10];
+    public Entity[] monster = new Entity[20];
     ArrayList<Entity> entityList = new ArrayList<>();
 
     // GAME STATE
@@ -64,7 +65,7 @@ public class GamePanel extends JPanel implements Runnable {
     public void setupGame() {
         assetSetter.setObject();
         assetSetter.setNPC();
-        //playMusic(0); //Play main theme
+        assetSetter.setMonster();
         gameState = GameState.TITLE;
     }
 
@@ -107,6 +108,7 @@ public class GamePanel extends JPanel implements Runnable {
             case PLAY:
                 player.update();
                 for(Entity entity : npc) if(entity != null) entity.update();
+                for(Entity entity : monster) if(entity != null) entity.update();
                 break;
             case PAUSE:
                 break;
@@ -134,6 +136,7 @@ public class GamePanel extends JPanel implements Runnable {
         entityList.add(player);
         for(Entity entity : npc) if(entity != null) entityList.add(entity);
         for(Entity entity : obj) if(entity != null) entityList.add(entity);
+        for(Entity entity : monster) if(entity != null) entityList.add(entity);
         entityList.sort(Comparator.comparingInt(o -> o.worldY));
         for(Entity entity : entityList) entity.draw(graphics2d);
         entityList.clear();

src/de/miaurizius/jgame2d/core/handlers/AssetSetter.java

@@ -2,6 +2,7 @@ package de.miaurizius.jgame2d.core.handlers;
 
 import de.miaurizius.jgame2d.core.GamePanel;
 import de.miaurizius.jgame2d.entity.OldManNPC;
+import de.miaurizius.jgame2d.entity.monster.GreenSlimeMON;
 import de.miaurizius.jgame2d.entity.objects.DoorObj;
 
 public class AssetSetter {
@@ -14,14 +15,6 @@ public class AssetSetter {
 
     public void setObject() {
 
-        panel.obj[0] = new DoorObj(panel);
-        panel.obj[0].worldX = panel.tileSize*21;
-        panel.obj[0].worldY = panel.tileSize*22;
-
-        panel.obj[1] = new DoorObj(panel);
-        panel.obj[1].worldX = panel.tileSize*23;
-        panel.obj[1].worldY = panel.tileSize*25;
-
     }
 
     public void setNPC() {
@@ -30,4 +23,14 @@ public class AssetSetter {
         panel.npc[0].worldY = panel.tileSize*21;
     }
 
+    public void setMonster() {
+        panel.monster[0] = new GreenSlimeMON(panel);
+        panel.monster[0].worldX = panel.tileSize*23;
+        panel.monster[0].worldY = panel.tileSize*36;
+
+        panel.monster[1] = new GreenSlimeMON(panel);
+        panel.monster[1].worldX = panel.tileSize*23;
+        panel.monster[1].worldY = panel.tileSize*37;
+    }
+
 }

src/de/miaurizius/jgame2d/entity/monster/GreenSlimeMON.java

@@ -0,0 +1,51 @@
+package de.miaurizius.jgame2d.entity.monster;
+
+import de.miaurizius.jgame2d.core.GamePanel;
+import de.miaurizius.jgame2d.core.enums.Direction;
+import de.miaurizius.jgame2d.entity.Entity;
+
+import java.util.Random;
+
+public class GreenSlimeMON extends Entity {
+
+    public GreenSlimeMON(GamePanel panel) {
+        super(panel);
+        name = "green-slime";
+        speed = 1;
+        maxLife = 4;
+        life = maxLife;
+
+        solidArea.x = 3;
+        solidArea.y = 18;
+        solidArea.width = 42;
+        solidArea.height = 30;
+        solidAreaDefaultX = solidArea.x;
+        solidAreaDefaultY = solidArea.y;
+
+        getImage();
+    }
+
+    public void getImage() {
+        up1 = initEntitySprites("monster/greenslime_down_1");
+        up2 = initEntitySprites("monster/greenslime_down_2");
+        down1 = initEntitySprites("monster/greenslime_down_1");
+        down2 = initEntitySprites("monster/greenslime_down_2");
+        left1 = initEntitySprites("monster/greenslime_down_1");
+        left2 = initEntitySprites("monster/greenslime_down_2");
+        right1 = initEntitySprites("monster/greenslime_down_1");
+        right2 = initEntitySprites("monster/greenslime_down_2");
+    }
+
+    public void setAction() {
+        actionLock++;
+        if(actionLock != 120) return; //lock action for x frames
+        Random rand = new Random();
+        int i = rand.nextInt(100)+1; //Generate number between 1 and 100
+        if(i <= 25) direction = Direction.UP;
+        if(i > 25 && i <= 50) direction = Direction.DOWN;
+        if(i > 50 && i <= 75) direction = Direction.LEFT;
+        if(i > 75) direction = Direction.RIGHT;
+        actionLock = 0;
+    }
+
+}

src/de/miaurizius/jgame2d/entity/objects/DoorObj.java

@@ -10,6 +10,13 @@ public class DoorObj extends Entity {
         name = "door";
         down1 = initEntitySprites("objects/door");
         collision = true;
+
+        solidArea.x = 0;
+        solidArea.y = 16;
+        solidArea.width = 48;
+        solidArea.height = 32;
+        solidAreaDefaultX = solidArea.x;
+        solidAreaDefaultY = solidArea.y;
     }
 
 }