Allow shock mines to spawn bullets (#5454)

* Allow shock mines to spawn bullets

* Fix up some issues

core/src/mindustry/world/blocks/defense/ShockMine.java

@@ -3,8 +3,10 @@ package mindustry.world.blocks.defense;
 import arc.graphics.*;
 import arc.graphics.g2d.*;
 import arc.math.*;
+import arc.util.*;
 import mindustry.annotations.Annotations.*;
 import mindustry.entities.*;
+import mindustry.entities.bullet.*;
 import mindustry.gen.*;
 import mindustry.graphics.*;
 import mindustry.world.*;
@@ -18,6 +20,9 @@ public class ShockMine extends Block{
     public int length = 10;
     public int tendrils = 6;
     public Color lightningColor = Pal.lancerLaser;
+    public int shots = 6;
+    public float inaccuracy = 0f;
+    public @Nullable BulletType bullet;
     public float teamAlpha = 0.3f;
     public @Load("@-team-top") TextureRegion teamRegion;
 
@@ -46,17 +51,26 @@ public class ShockMine extends Block{
 
         @Override
         public void drawCracks(){
-
+            //no
         }
 
         @Override
         public void unitOn(Unit unit){
             if(enabled && unit.team != team && timer(timerDamage, cooldown)){
-                for(int i = 0; i < tendrils; i++){
+                triggered();
-                    Lightning.create(team, lightningColor, damage, x, y, Mathf.random(360f), length);
-                }
                 damage(tileDamage);
             }
         }
+
+        public void triggered(){
+            for(int i = 0; i < tendrils; i++){
+                Lightning.create(team, lightningColor, damage, x, y, Mathf.random(360f), length);
+            }
+            if(bullet != null){
+                for(int i = 0; i < shots; i++){
+                    bullet.create(this, x, y, (360f / shots) * i + Mathf.random(inaccuracy));
+                }
+            }
+        }
     }
 }