Replaced some post calls with cancel-able time calls

core/src/mindustry/entities/Damage.java

@@ -546,7 +546,7 @@ public class Damage{
     }
 
     public static void tileDamage(Team team, int x, int y, float baseRadius, float damage, @Nullable Bullet source){
-        Core.app.post(() -> {
+        Time.run(0f, () -> {
             var in = world.build(x, y);
             //spawned inside a multiblock. this means that damage needs to be dealt directly.
             //why? because otherwise the building would absorb everything in one cell, which means much less damage than a nearby explosion.

core/src/mindustry/entities/bullet/BulletType.java

@@ -518,7 +518,7 @@ public class BulletType extends Content implements Cloneable{
 
         if(fragOnHit){
             if(delayFrags && fragBullet != null && fragBullet.delayFrags){
-                Core.app.post(() -> createFrags(b, x, y));
+                Time.run(0f, () -> createFrags(b, x, y));
             }else{
                 createFrags(b, x, y);
             }