Add basic support for ammo

src/main/java/com/bartlomiejpluta/demo/world/item/ItemStack.java

@@ -1,5 +1,15 @@
 package com.bartlomiejpluta.demo.world.item;
 
 public interface ItemStack extends Item {
-   int count();
+   int getCount();
+
+   void setCount(int count);
+
+   void decrease();
+
+   void increase();
+
+   void increase(int count);
+
+   void decrease(int count);
 }

src/main/java/com/bartlomiejpluta/demo/world/item/Useable.java

@@ -0,0 +1,11 @@
+package com.bartlomiejpluta.demo.world.item;
+
+import com.bartlomiejpluta.demo.entity.Creature;
+
+public interface Useable {
+   void use(Creature creature);
+
+   default String usageName() {
+      return "Use";
+   }
+}

src/main/java/com/bartlomiejpluta/demo/world/weapon/Ammunition.java

@@ -3,33 +3,76 @@ package com.bartlomiejpluta.demo.world.weapon;
 import com.bartlomiejpluta.base.api.context.ContextHolder;
 import com.bartlomiejpluta.base.api.icon.Icon;
 import com.bartlomiejpluta.base.lib.icon.IconDelegate;
+import com.bartlomiejpluta.demo.entity.Creature;
 import com.bartlomiejpluta.demo.world.item.ItemStack;
+import com.bartlomiejpluta.demo.world.item.Useable;
 import lombok.Getter;
 import lombok.NonNull;
+import lombok.Setter;
+import lombok.ToString;
 
-public class Ammunition extends IconDelegate implements ItemStack {
+@ToString
+public class Ammunition extends IconDelegate implements ItemStack, Useable {
+
+   @Getter
+   private final String id;
+
+   @Getter
+   @Setter
    private int count;
 
    @Getter
    private final String name;
 
+   @Getter
+   private final String appliesTo;
+
    public Ammunition(@NonNull String id, int count) {
       this(DB.dao.ammunition.find(id), count);
    }
 
    public Ammunition(@NonNull DB.model.AmmunitionModel template, int count) {
       super(createIcon(template));
+      this.id = template.getId();
       this.name = template.getName();
       this.count = count;
-   }
-
-   @Override
-   public int count() {
-      return count;
+      this.appliesTo = template.getAppliesTo();
    }
 
    private static Icon createIcon(DB.model.AmmunitionModel template) {
       var icons = template.getIcon().split(",");
       return ContextHolder.INSTANCE.getContext().createIcon(A.iconsets.get(icons[0]).uid, Integer.parseInt(icons[1]), Integer.parseInt(icons[2]));
    }
+
+   @Override
+   public void decrease() {
+      if (count > 0) {
+         --count;
+      }
+   }
+
+   @Override
+   public void increase() {
+      ++count;
+   }
+
+   @Override
+   public void increase(int count) {
+      this.count += count;
+   }
+
+   @Override
+   public void decrease(int count) {
+      this.count = Math.max(0, count);
+   }
+
+   @Override
+   public void use(Creature creature) {
+      creature.setAmmunition(this);
+   }
+
+   @Override
+   public String usageName() {
+      return "Equip";
+   }
 }

src/main/java/com/bartlomiejpluta/demo/world/weapon/MeleeWeapon.java

@@ -59,6 +59,16 @@ public class MeleeWeapon extends IconDelegate implements Weapon {
       return false;
    }
 
+   @Override
+   public void use(Creature creature) {
+      creature.setWeapon(this);
+   }
+
+   @Override
+   public String usageName() {
+      return "Equip";
+   }
+
    private static Icon createIcon(DB.model.MeleeWeaponModel template) {
       var icons = template.getIcon().split(",");
       return ContextHolder.INSTANCE.getContext().createIcon(A.iconsets.get(icons[0]).uid, Integer.parseInt(icons[1]), Integer.parseInt(icons[2]));

src/main/java/com/bartlomiejpluta/demo/world/weapon/RangedWeapon.java

@@ -28,6 +28,9 @@ public class RangedWeapon extends IconDelegate implements Weapon {
    @Getter
    private final String name;
 
+   @Getter
+   private final String type;
+
    @Getter
    private final DiceRoller dmgRoller;
 
@@ -46,6 +49,7 @@ public class RangedWeapon extends IconDelegate implements Weapon {
 
       this.context = ContextHolder.INSTANCE.getContext();
       this.name = template.getName();
+      this.type = template.getType();
       this.dmgRoller = DiceRoller.of(template.getDamage());
       this.rangeRoller = DiceRoller.of(template.getRange());
       this.cooldown = template.getCooldown();
@@ -75,12 +79,28 @@ public class RangedWeapon extends IconDelegate implements Weapon {
 
    @Override
    public boolean attack(Creature attacker) {
+      var ammunition = attacker.getAmmunition();
+
+      if(ammunition == null || !ammunition.getAppliesTo().equals(type)) {
+         return false;
+      }
+
       var direction = attacker.getFaceDirection();
       context.playSound(sound);
       animation.range(rangeRoller.roll()).direction(direction).rotation(direction.xAngle - 180).run(context, attacker.getLayer(), attacker);
       return true;
    }
 
+   @Override
+   public void use(Creature creature) {
+      creature.setWeapon(this);
+   }
+
+   @Override
+   public String usageName() {
+      return "Equip";
+   }
+
    private static Icon createIcon(DB.model.RangedWeaponModel template) {
       var icons = template.getIcon().split(",");
       return ContextHolder.INSTANCE.getContext().createIcon(A.iconsets.get(icons[0]).uid, Integer.parseInt(icons[1]), Integer.parseInt(icons[2]));

src/main/java/com/bartlomiejpluta/demo/world/weapon/Weapon.java

@@ -2,8 +2,9 @@ package com.bartlomiejpluta.demo.world.weapon;
 
 import com.bartlomiejpluta.demo.entity.Creature;
 import com.bartlomiejpluta.demo.world.item.Item;
+import com.bartlomiejpluta.demo.world.item.Useable;
 
-public interface Weapon extends Item {
+public interface Weapon extends Item, Useable {
 
    int getCooldown();