The price of the shop items will rise, if you buy it.

Balancing: decrease the value of the ItemIncreaseDamage and the shop item "damage".

src/de/teamteamteam/spacescooter/entity/item/ItemIncreaseDamage.java

@@ -17,7 +17,7 @@ public class ItemIncreaseDamage extends Item {
 		if(player.getShootDamage() > 25) {
 			return;
 		} else {
-			player.setShootDamage(player.getShootDamage()+5);
+			player.setShootDamage(player.getShootDamage()+1);
 		}
 	}
 

src/de/teamteamteam/spacescooter/gui/ShopOffer.java

@@ -10,18 +10,26 @@ public class ShopOffer extends Entity {
 
 	private String offer;
 	private int bought;
-	private int max;
+	private final int max = 15;
+	private final int price;
+	private int currentPrice;
+	private ImageEntity displayPrice;
 	
-	public ShopOffer(int x, int y, int max, int bought, String offer) {
+	public ShopOffer(int x, int y, int bought, String offer, int price) {
 		super(x, y);
 		this.offer = offer;
 		this.bought = bought;
-		this.max = max;
+		this.price = price;
+		if(bought == 0) this.currentPrice = price;
+		else this.currentPrice = (int) (price+(price*bought*1.36));
+		this.displayPrice = new ImageEntity(185, y+20, null);
+		if(this.bought<this.max) this.displayPrice.drawString(String.valueOf(this.currentPrice) + "C", 20, Color.WHITE);
+		else this.displayPrice.drawString("---", 20, Color.WHITE);
 		for (int i = 0; i<max; i++){
 			if(i<bought){
-				new ImageEntity(x + 140 + i*35, y - 3, "images/shop/shopbought.png");
+				new ImageEntity(x + 150 + i*35, y - 3, "images/shop/shopbought.png");
 			}else{
-				new ImageEntity(x + 140 + i*35, y - 3, "images/shop/shopnotbought.png");
+				new ImageEntity(x + 150 + i*35, y - 3, "images/shop/shopnotbought.png");
 			}
 		}
 	}
@@ -36,8 +44,11 @@ public class ShopOffer extends Entity {
 	public void update() {}
 	
 	public void buy(){
-		new ImageEntity(this.getX() + 140 + bought*35, this.getY() - 3, "images/shop/shopbought.png");
+		new ImageEntity(this.getX() + 150 + bought*35, this.getY() - 3, "images/shop/shopbought.png");
 		bought++;
+		this.currentPrice = (int) (price+(price*bought*1.36));
+		if(this.bought<this.max) this.displayPrice.drawString(String.valueOf(this.currentPrice) + "C", 20, Color.WHITE);
+		else this.displayPrice.drawString("----", 20, Color.WHITE);
 	}
 
 	public int getBought() {
@@ -47,5 +58,9 @@ public class ShopOffer extends Entity {
 	public int getMax() {
 		return max;
 	}
+	
+	public int getCurrentPrice(){
+		return this.currentPrice;
+	}
 }
 	

src/de/teamteamteam/spacescooter/screen/ShopScreen.java

@@ -30,9 +30,9 @@ public class ShopScreen extends Screen {
 		super(parent);
 		new ImageEntity(0, 0, "images/shopbackground.png");
 		new Button(GameConfig.windowWidth/2-125, 500);
-		damage = new ShopOffer(100, 150, 15, PlayerSession.getBaseShotUpgradesBought(), "Schaden  5C");
+		damage = new ShopOffer(90, 150, PlayerSession.getBaseShotUpgradesBought(), "Schaden", 5);
-		shield = new ShopOffer(100, 225, 15, PlayerSession.getBaseShieldUpgradesBought(), "Schild     10C");
+		shield = new ShopOffer(90, 225, PlayerSession.getBaseShieldUpgradesBought(), "Schild", 10);
-		life = new ShopOffer(100, 300, 15, PlayerSession.getBaseHealthUpgradesBought(), "Leben     10C");
+		life = new ShopOffer(90, 300, PlayerSession.getBaseHealthUpgradesBought(), "Leben", 10);
 		new ImageEntity(GameConfig.windowWidth / 2 - 120, 365, "images/shop/shoprocket.png");
 		new ImageEntity(GameConfig.windowWidth / 2 + 30, 365, "images/shop/shopbeam.png");
 		if(PlayerSession.getSecondaryWeapon() == 1){
@@ -40,7 +40,7 @@ public class ShopScreen extends Screen {
 		}else{
 			select = new ImageEntity(GameConfig.windowWidth / 2 + 20, 355, "images/shop/select.png");
 		}
-		this.cursor = new ImageEntity(50, 149, "images/ship.png");
+		this.cursor = new ImageEntity(40, 149, "images/ship.png");
 	}
 
 	@Override
@@ -83,7 +83,7 @@ public class ShopScreen extends Screen {
 				if(menuPoint == 3){
 					this.cursor.setPosition(GameConfig.windowWidth/2-180, 390);
 				}else{
-					this.cursor.setPosition(50, 149+(this.menuPoint*75));
+					this.cursor.setPosition(40, 149+(this.menuPoint*75));
 				}
 			}
 			
@@ -94,27 +94,27 @@ public class ShopScreen extends Screen {
 			this.keyPressed = true;
 			switch (this.menuPoint) {
 			case 0:
-				if(PlayerSession.getCredits() >= 5 && damage.getBought() < damage.getMax()){
+				if(PlayerSession.getCredits() >= damage.getCurrentPrice() && damage.getBought() < damage.getMax()){
-					damage.buy();
+					PlayerSession.addBaseShotDamage(2);
-					PlayerSession.addBaseShotDamage(5);
 					PlayerSession.incrementBaseShotUpgradesBought();
-					PlayerSession.removeCredits(5);
+					PlayerSession.removeCredits(damage.getCurrentPrice());
+					damage.buy();
 				}
 				break;
 			case 1:
-				if(PlayerSession.getCredits() >= 10 && shield.getBought() < shield.getMax()){
+				if(PlayerSession.getCredits() >= shield.getCurrentPrice() && shield.getBought() < shield.getMax()){
-					shield.buy();
 					PlayerSession.addBaseShieldPoints(10);
 					PlayerSession.incrementBaseShieldUpgradesBought();
-					PlayerSession.removeCredits(10);
+					PlayerSession.removeCredits(shield.getCurrentPrice());
+					shield.buy();
 				}
 				break;
 			case 2:
-				if(PlayerSession.getCredits() >= 10 && life.getBought() < life.getMax()){
+				if(PlayerSession.getCredits() >= life.getCurrentPrice() && life.getBought() < life.getMax()){
-					life.buy();
 					PlayerSession.addBaseHealthPoints(10);
 					PlayerSession.incrementBaseHealthUpgradesBought();
-					PlayerSession.removeCredits(10);
+					PlayerSession.removeCredits(life.getCurrentPrice());
+					life.buy();
 				}
 				break;
 			case 3: