Ground support unit implementations

core/src/mindustry/entities/units/Ability.java

@@ -0,0 +1,8 @@
+package mindustry.entities.units;
+
+import mindustry.gen.*;
+
+public interface Ability{
+    default void update(Unit unit){}
+    default void draw(Unit unit){}
+}

core/src/mindustry/entities/units/HealFieldAbility.java

@@ -0,0 +1,45 @@
+package mindustry.entities.units;
+
+import arc.util.*;
+import mindustry.content.*;
+import mindustry.entities.*;
+import mindustry.gen.*;
+
+public class HealFieldAbility implements Ability{
+    public float amount = 1, reload = 100, range = 60;
+    public Effect healEffect = Fx.heal;
+    public Effect activeEffect = Fx.healWave;
+
+    private boolean wasHealed = false;
+
+    HealFieldAbility(){}
+
+    public HealFieldAbility(float amount, float reload, float range){
+        this.amount = amount;
+        this.reload = reload;
+        this.range = range;
+    }
+
+    @Override
+    public void update(Unit unit){
+        unit.timer1 += Time.delta();
+
+        if(unit.timer1 >= 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);
+            }
+
+            unit.timer1 = 0f;
+        }
+    }
+}

core/src/mindustry/entities/units/StatusFieldAbility.java

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+package mindustry.entities.units;
+
+import arc.util.ArcAnnotate.*;
+import arc.util.*;
+import mindustry.content.*;
+import mindustry.entities.*;
+import mindustry.gen.*;
+import mindustry.type.*;
+
+public class StatusFieldAbility implements Ability{
+    public @NonNull StatusEffect effect;
+    public float duration = 60, reload = 100, range = 20;
+    public Effect applyEffect = Fx.heal;
+    public Effect activeEffect = Fx.healWave;
+
+    StatusFieldAbility(){}
+
+    public StatusFieldAbility(@NonNull StatusEffect effect, float duration, float reload, float range){
+        this.duration = duration;
+        this.reload = reload;
+        this.range = range;
+        this.effect = effect;
+    }
+
+    @Override
+    public void update(Unit unit){
+        unit.timer2 += Time.delta();
+
+        if(unit.timer2 >= reload){
+
+            Units.nearby(unit.team, unit.x, unit.y, range, other -> {
+                other.apply(effect, duration);
+            });
+
+            activeEffect.at(unit);
+
+            unit.timer2 = 0f;
+        }
+    }
+}