added monster damage

src/de/miaurizius/jgame2d/entity/Entity.java

@@ -4,6 +4,7 @@ import de.miaurizius.jgame2d.core.Boot;
 import de.miaurizius.jgame2d.core.enums.Direction;
 import de.miaurizius.jgame2d.core.GamePanel;
 import de.miaurizius.jgame2d.core.Utility;
+import de.miaurizius.jgame2d.core.enums.EntityType;
 
 import javax.imageio.ImageIO;
 import java.awt.*;
@@ -25,11 +26,14 @@ public class Entity {
     public int solidAreaDefaultX,  solidAreaDefaultY;
     public boolean collisionOn = false;
     public int actionLock = 0;
+    public boolean invincible = false;
+    public int invincibleCount = 0;
     String[] dialogue = new String[20];
     int dialogueIndex = 0;
     public BufferedImage image, image2, image3;
     public String name;
     public boolean collision = false;
+    public EntityType type;
 
     // CHARACTER STATUS
     public int maxLife;
@@ -61,7 +65,13 @@ public class Entity {
         panel.collisionH.checkObject(this, false);
         panel.collisionH.checkEntity(this, panel.npc);
         panel.collisionH.checkEntity(this, panel.monster);
-        panel.collisionH.checkPlayer(this);
+        boolean contactPlayer = panel.collisionH.checkPlayer(this);
+
+        if(this.type == EntityType.MONSTER && contactPlayer) {
+            if(panel.player.invincible) return;
+            panel.player.life -= 1;
+            panel.player.invincible = true;
+        }
 
         if(!collisionOn) {
             switch (direction) {
@@ -81,7 +91,7 @@ public class Entity {
         }
     }
 
-    public void draw(Graphics graphics2d) {
+    public void draw(Graphics2D graphics2d) {
         int screenX = worldX - panel.player.worldX + panel.player.screenX;
         int screenY = worldY - panel.player.worldY + panel.player.screenY;
 

src/de/miaurizius/jgame2d/entity/OldManNPC.java

@@ -32,6 +32,7 @@ public class OldManNPC extends Entity {
         dialogue[1] = "So you've come to this island to \nfind the treasure?";
         dialogue[2] = "I used to be a great wizard but now... \nI'm a bit too old for taking an \nadventure.";
         dialogue[3] = "Well, good luck on you.";
+        dialogue[4] = "I heard drinking the water of the \nholy lake makes you feel fine again...";
     }
 
     public void setAction() {

src/de/miaurizius/jgame2d/entity/Player.java

@@ -34,10 +34,10 @@ public class Player extends Entity {
     }
 
     public void setDefaultValues() {
-//        worldX = panel.tileSize * 23;
-//        worldY = panel.tileSize * 21;
-        worldX = panel.tileSize * 10;
-        worldY = panel.tileSize * 13;
+        worldX = panel.tileSize * 23;
+        worldY = panel.tileSize * 21;
+//        worldX = panel.tileSize * 10;
+//        worldY = panel.tileSize * 13;
         speed = 4;
         direction = Direction.DOWN;
 
@@ -79,6 +79,7 @@ public class Player extends Entity {
 
             // CHECK MONSTER COLLISION
             int monsterIndex = panel.collisionH.checkEntity(this, panel.monster);
+            interactMonster(monsterIndex);
 
             // CHECK EVENT
             panel.eventH.checkEvent();
@@ -102,6 +103,25 @@ public class Player extends Entity {
                 spriteCounter = 0;
             }
         }
+        if(!invincible) return;
+        invincibleCount++;
+        if(invincibleCount > 60) {
+            invincible = false;
+            invincibleCount = 0;
+        }
+    }
+
+    public void draw(Graphics2D graphics2d) {
+        int screenX = worldX - panel.player.worldX + panel.player.screenX;
+        int screenY = worldY - panel.player.worldY + panel.player.screenY;
+
+        if(invincible) {
+            graphics2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.3f));
+        }
+
+        graphics2d.drawImage(parseSprite(), screenX, screenY, null);
+
+        graphics2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1f));
     }
 
     public void pickObject(int index) {
@@ -115,8 +135,11 @@ public class Player extends Entity {
         panel.npc[index].speak();
     }
 
-    public void draw(Graphics2D graphics2d) {
-        graphics2d.drawImage(parseSprite(), screenX, screenY, null);
+    public void interactMonster(int index) {
+        if(index == 999) return;
+        if(invincible) return;
+        life -= 1;
+        invincible = true;
     }
 
     public void speak() {

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

@@ -2,6 +2,7 @@ package de.miaurizius.jgame2d.entity.monster;
 
 import de.miaurizius.jgame2d.core.GamePanel;
 import de.miaurizius.jgame2d.core.enums.Direction;
+import de.miaurizius.jgame2d.core.enums.EntityType;
 import de.miaurizius.jgame2d.entity.Entity;
 
 import java.util.Random;
@@ -10,6 +11,7 @@ public class GreenSlimeMON extends Entity {
 
     public GreenSlimeMON(GamePanel panel) {
         super(panel);
+        type = EntityType.MONSTER;
         name = "green-slime";
         speed = 1;
         maxLife = 4;