make heart collectable

src/de/miaurizius/jgame2d/entity/item/CoinObj.java

@@ -0,0 +1,26 @@
+package de.miaurizius.jgame2d.entity.item;
+
+import de.miaurizius.jgame2d.core.GamePanel;
+import de.miaurizius.jgame2d.core.enums.EntityType;
+import de.miaurizius.jgame2d.entity.Entity;
+
+public class CoinObj extends Entity {
+
+    GamePanel panel;
+
+    public CoinObj(GamePanel panel) {
+        super(panel);
+        this.panel = panel;
+
+        name = "Coin";
+        type = EntityType.PICKUP;
+        value = 1;
+        down1 = initEntitySprites("/objects/coin_bronze");
+    }
+
+    public void use(Entity entity) {
+        panel.playSE(1);
+        panel.ui.addMessage("Coin +"+value);
+        panel.player.coins += value;
+    }
+}

src/de/miaurizius/jgame2d/entity/item/HeartObj.java

@@ -6,13 +6,26 @@ import de.miaurizius.jgame2d.entity.Entity;
 
 public class HeartObj extends Entity {
 
+    GamePanel panel;
+
     public HeartObj(GamePanel panel) {
         super(panel);
-        name = "Heart Container";
-        type = EntityType.ITEM;
+        this.panel = panel;
+
+        name = "Heart";
+        type = EntityType.PICKUP;
+        value = 2;
+
+        down1 = initEntitySprites("objects/heart_full");
         image = initEntitySprites("objects/heart_full");
         image2 = initEntitySprites("objects/heart_half");
         image3 = initEntitySprites("objects/heart_blank");
     }
 
+    public void use(Entity entity) {
+        panel.playSE(2);
+        panel.ui.addMessage("Life +"+value);
+        entity.life += value;
+    }
+
 }