3 files changed, 13 insertions, 1 deletions
diff --git a/core/src/ch/asynk/tankontank/engine/Pawn.java b/core/src/ch/asynk/tankontank/engine/Pawn.java
index 8da9774..f5304c7 100644
--- a/core/src/ch/asynk/tankontank/engine/Pawn.java
+++ b/core/src/ch/asynk/tankontank/engine/Pawn.java
@@ -26,6 +26,7 @@ public abstract class Pawn extends Image implements Disposable
 
     public abstract int getMvt();
     public abstract int roadMarch();
+    public abstract boolean isEnemy(Pawn other);
 
     public Pawn(TextureRegion region, TextureAtlas atlas)
     {
diff --git a/core/src/ch/asynk/tankontank/game/Army.java b/core/src/ch/asynk/tankontank/game/Army.java
index 95b06e9..66c6b4f 100644
--- a/core/src/ch/asynk/tankontank/game/Army.java
+++ b/core/src/ch/asynk/tankontank/game/Army.java
@@ -2,5 +2,10 @@ package ch.asynk.tankontank.game;
 
 public enum Army
 {
-    GE, US
+    GE, US;
+
+    public boolean isEnemy(Army other)
+    {
+        return (this != other);
+    }
 }
diff --git a/core/src/ch/asynk/tankontank/game/Unit.java b/core/src/ch/asynk/tankontank/game/Unit.java
index 40fb68d..d9f0789 100644
--- a/core/src/ch/asynk/tankontank/game/Unit.java
+++ b/core/src/ch/asynk/tankontank/game/Unit.java
@@ -27,6 +27,12 @@ public class Unit extends Pawn
         return 1;
     }
 
+    @Override
+    public boolean isEnemy(Pawn other)
+    {
+        return army.isEnemy(((Unit) other).army);
+    }
+
     // hard tager
     public Unit(Army army, boolean hq, int range, int defense, int movementPoints, TextureRegion region, TextureAtlas atlas)
     {