Fixed #3053

core/src/mindustry/entities/abilities/RepairFieldAbility.java

@@ -0,0 +1,46 @@
+package mindustry.entities.abilities;
+
+import arc.util.*;
+import mindustry.content.*;
+import mindustry.entities.*;
+import mindustry.gen.*;
+
+public class RepairFieldAbility extends Ability{
+    public float amount = 1, reload = 100, range = 60;
+    public Effect healEffect = Fx.heal;
+    public Effect activeEffect = Fx.healWaveDynamic;
+
+    protected float timer;
+    protected boolean wasHealed = false;
+
+    RepairFieldAbility(){}
+
+    public RepairFieldAbility(float amount, float reload, float range){
+        this.amount = amount;
+        this.reload = reload;
+        this.range = range;
+    }
+
+    @Override
+    public void update(Unit unit){
+        timer += Time.delta;
+
+        if(timer >= reload){
+            wasHealed = false;
+
+            Units.nearby(unit.team, unit.x, unit.y, range, other -> {
+                if(other.damaged()){
+                    healEffect.at(unit);
+                    wasHealed = true;
+                }
+                other.heal(amount);
+            });
+
+            if(wasHealed){
+                activeEffect.at(unit, range);
+            }
+
+            timer = 0f;
+        }
+    }
+}