Minimap attack indicators

core/src/mindustry/core/Control.java

@@ -49,6 +49,7 @@ public class Control implements ApplicationListener, Loadable{
     public Saves saves;
     public SoundControl sound;
     public InputHandler input;
+    public AttackIndicators indicators;
 
     private Interval timer = new Interval(2);
     private boolean hiscore = false;
@@ -58,6 +59,13 @@ public class Control implements ApplicationListener, Loadable{
     public Control(){
         saves = new Saves();
         sound = new SoundControl();
+        indicators = new AttackIndicators();
+
+        Events.on(BuildDamageEvent.class, e -> {
+            if(e.build.team == Vars.player.team()){
+                indicators.add(e.build.tileX(), e.build.tileY());
+            }
+        });
 
         //show dialog saying that mod loading was skipped.
         Events.on(ClientLoadEvent.class, e -> {
@@ -100,6 +108,7 @@ public class Control implements ApplicationListener, Loadable{
         Events.on(ResetEvent.class, event -> {
             player.reset();
             toBePlaced.clear();
+            indicators.clear();
 
             hiscore = false;
             saves.resetSave();
@@ -628,6 +637,9 @@ public class Control implements ApplicationListener, Loadable{
 
         if(state.isGame()){
             input.update();
+            if(!state.isPaused()){
+                indicators.update();
+            }
 
             //auto-update rpc every 5 seconds
             if(timer.get(0, 60 * 5)){

core/src/mindustry/game/AttackIndicators.java

@@ -0,0 +1,66 @@
+package mindustry.game;
+
+import arc.math.geom.*;
+import arc.struct.*;
+import arc.util.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.gen.*;
+
+/** Updates and stores attack indicators for the minimap. */
+public class AttackIndicators{
+    private static final float duration = 15f * 60f;
+
+    private LongSeq indicators = new LongSeq(false, 16);
+    private IntIntMap posToIndex = new IntIntMap();
+
+    public LongSeq list(){
+        return indicators;
+    }
+
+    public void clear(){
+        indicators.clear();
+        posToIndex.clear();
+    }
+
+    public void add(int x, int y){
+        int pos = Point2.pack(x, y);
+        int index = posToIndex.get(pos, -1);
+
+        //there is an existing indicator...
+        if(index != -1){
+            //reset its time (new attack)
+            indicators.items[index] = Indicator.time(indicators.items[index], 0f);
+        }else{
+            //new indicator created
+            indicators.add(Indicator.get(pos, 0f));
+            posToIndex.put(pos, indicators.size - 1);
+        }
+    }
+
+    public void update(){
+        long[] items = indicators.items;
+        for(int i = 0; i < indicators.size; i ++){
+            long l = items[i];
+            items[i] = l = Indicator.time(l, Indicator.time(l) + Time.delta);
+
+            if(Indicator.time(l) >= duration){
+                //remove the indicator as it has timed out, make sure to not skip the next one
+                indicators.removeIndex(i);
+                posToIndex.remove(Indicator.pos(l));
+
+                if(indicators.size > 0){
+                    //relocation of head to this new index
+                    posToIndex.put(Indicator.pos(items[i]), i);
+                }
+
+                i --;
+            }
+        }
+    }
+
+    @Struct
+    class IndicatorStruct{
+        int pos;
+        float time;
+    }
+}

core/src/mindustry/graphics/MinimapRenderer.java

@@ -201,6 +201,34 @@ public class MinimapRenderer{
             }
         }
 
+        LongSeq indicators = control.indicators.list();
+        float fin = ((Time.globalTime / 30f) % 1f);
+        float rad = scale(fin * 5f + tilesize - 2f);
+        Lines.stroke(Scl.scl((1f - fin) * 4f + 0.5f));
+
+        for(int i = 0; i < indicators.size; i++){
+            long ind = indicators.items[i];
+            int
+                pos = Indicator.pos(ind),
+                ix = Point2.x(pos),
+                iy = Point2.y(pos);
+            float time = Indicator.time(ind), offset = 0f;
+
+            //fix multiblock offset - this is suboptimal
+            Building build = world.build(pos);
+            if(build != null){
+                offset = build.block.offset / tilesize;
+            }
+
+            Vec2 v = transform(Tmp.v1.set((ix + 0.5f + offset) * tilesize, (iy + 0.5f + offset) * tilesize));
+
+            Draw.color(Color.orange, Color.scarlet, Mathf.clamp(time / 50f));
+
+            Lines.square(v.x, v.y, rad);
+        }
+
+        Draw.reset();
+
         state.rules.objectives.eachRunning(obj -> {
             for(var marker : obj.markers){
                 marker.drawMinimap(this);

core/src/mindustry/ui/fragments/MinimapFragment.java

@@ -86,15 +86,16 @@ public class MinimapFragment{
                     panx += deltaX / zoom;
                     pany += deltaY / zoom;
                 }else{
-                    Rect r = getRectBounds();
-                    Tmp.v1.set(x, y).sub(r.x, r.y).scl(1f / r.width, 1f / r.height).scl(world.unitWidth(), world.unitHeight());
-                    control.input.panCamera(Tmp.v1);
+                    panTo(x, y);
                 }
             }
 
             @Override
             public void touchDown(InputEvent event, float x, float y, int pointer, KeyCode button){
                 super.touchDown(event, x, y, pointer, button);
+                if(button == KeyCode.mouseRight){
+                    panTo(x, y);
+                }
             }
 
             @Override
@@ -125,6 +126,12 @@ public class MinimapFragment{
         });
     }
 
+    public void panTo(float relativeX, float relativeY){
+        Rect r = getRectBounds();
+        Tmp.v1.set(relativeX, relativeY).sub(r.x, r.y).scl(1f / r.width, 1f / r.height).scl(world.unitWidth(), world.unitHeight());
+        control.input.panCamera(Tmp.v1);
+    }
+
     public boolean shown(){
         return shown;
     }