Implement TargetingPolicy, Cover can only target other allies

Assets/Battle/Targeting/SingleTargeting.cs

@@ -0,0 +1,32 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class SingleTargeting
+{
+    private TargetingPolicy targetingPolicy;
+    private BattleParticipant participantClicked;
+    
+    public SingleTargeting(TargetingPolicy targetingPolicy) {
+        this.targetingPolicy = targetingPolicy;
+    }
+
+    public bool CanTarget(BattleParticipant participant) {
+        return this.targetingPolicy.CanTarget(participant);
+    }
+    
+    public IEnumerator ChooseTarget() {
+        while (this.participantClicked == null) {
+            yield return null;
+        }
+    }
+
+    public void NotifyParticipantSpriteClicked(BattleParticipant paticipant) {
+        this.participantClicked = paticipant;
+    }
+
+    public BattleParticipant GetTarget() {
+        return this.participantClicked;
+    }
+}