diff --git a/README.md b/README.md
index b2756d1ed1..ce534d7c63 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ See [CONTRIBUTING](CONTRIBUTING.md).
 Bleeding-edge builds are generated automatically for every commit. You can see them [here](https://github.com/Anuken/MindustryBuilds/releases).
 
 If you'd rather compile on your own, follow these instructions.
-First, make sure you have [JDK 16-17](https://adoptopenjdk.net/archive.html?variant=openjdk16&jvmVariant=hotspot) installed. **Other JDK versions will not work.** Open a terminal in the Mindustry directory and run the following commands:
+First, make sure you have [JDK 16-17](https://adoptium.net/archive.html?variant=openjdk17&jvmVariant=hotspot) installed. **Other JDK versions will not work.** Open a terminal in the Mindustry directory and run the following commands:
 
 ### Windows
 
diff --git a/core/src/mindustry/ai/Pathfinder.java b/core/src/mindustry/ai/Pathfinder.java
index de447c3a59..9652c73d07 100644
--- a/core/src/mindustry/ai/Pathfinder.java
+++ b/core/src/mindustry/ai/Pathfinder.java
@@ -54,9 +54,9 @@ public class Pathfinder implements Runnable{
             (PathTile.solid(tile) ? 5 : 0),
 
         //water
-        (team, tile) -> PathTile.solid(tile) || !PathTile.liquid(tile) ? 200 : 2 +
+        (team, tile) -> (PathTile.solid(tile) || !PathTile.liquid(tile) ? 6000 : 1) +
             (PathTile.nearGround(tile) || PathTile.nearSolid(tile) ? 14 : 0) +
-            (PathTile.deep(tile) ? -1 : 0) +
+            (PathTile.deep(tile) ? 0 : 1) +
             (PathTile.damages(tile) ? 35 : 0)
     );
 
diff --git a/core/src/mindustry/core/NetServer.java b/core/src/mindustry/core/NetServer.java
index 39ddb35bb9..9a72f7ad51 100644
--- a/core/src/mindustry/core/NetServer.java
+++ b/core/src/mindustry/core/NetServer.java
@@ -757,6 +757,8 @@ public class NetServer implements ApplicationListener{
 
         player.add();
 
+        Events.fire(new PlayerConnectionConfirmed(player));
+
         if(player.con == null || player.con.hasConnected) return;
 
         player.con.hasConnected = true;
diff --git a/core/src/mindustry/entities/bullet/BulletType.java b/core/src/mindustry/entities/bullet/BulletType.java
index 7e515281bb..8836c6b5cd 100644
--- a/core/src/mindustry/entities/bullet/BulletType.java
+++ b/core/src/mindustry/entities/bullet/BulletType.java
@@ -359,8 +359,9 @@ public class BulletType extends Content implements Cloneable{
             //home in on allies if possible
             if(healPercent > 0){
                 target = Units.closestTarget(null, b.x, b.y, homingRange,
-                    e -> e.checkTarget(collidesAir, collidesGround) && e.team != b.team,
-                    t -> collidesGround && (t.team != b.team || t.damaged()));
+                    e -> e.checkTarget(collidesAir, collidesGround) && e.team != b.team && !b.hasCollided(e.id),
+                    t -> collidesGround && (t.team != b.team || t.damaged()) && !b.hasCollided(t.id)
+                );
             }else{
                 target = Units.closestTarget(b.team, b.x, b.y, homingRange, e -> e.checkTarget(collidesAir, collidesGround) && !b.hasCollided(e.id), t -> collidesGround && !b.hasCollided(t.id));
             }
diff --git a/core/src/mindustry/game/EventType.java b/core/src/mindustry/game/EventType.java
index 452f07c3e6..26d7dcb740 100644
--- a/core/src/mindustry/game/EventType.java
+++ b/core/src/mindustry/game/EventType.java
@@ -480,7 +480,19 @@ public class EventType{
         }
     }
 
-    /** Called after connecting; when a player receives world data and is ready to play.*/
+    /**
+     * Called after player confirmed it has received world data and is ready to play.
+     * Note that if this is the first world receival, then player.con.hasConnected is false.
+     */
+    public static class PlayerConnectionConfirmed{
+        public final Player player;
+
+        public PlayerConnectionConfirmed(Player player){
+            this.player = player;
+        }
+    }
+
+    /** Called after connecting; when a player receives world data and is ready to play. Fired only once, after initial connection. */
     public static class PlayerJoin{
         public final Player player;
 
diff --git a/core/src/mindustry/input/InputHandler.java b/core/src/mindustry/input/InputHandler.java
index 3ce9851aaf..0bcc17727e 100644
--- a/core/src/mindustry/input/InputHandler.java
+++ b/core/src/mindustry/input/InputHandler.java
@@ -696,9 +696,7 @@ public abstract class InputHandler implements InputProcessor, GestureListener{
             });
 
             //flip rotation
-            if(x == (req.rotation % 2 == 0)){
-                req.rotation = Mathf.mod(req.rotation + 2, 4);
-            }
+            req.block.flipRotation(req, x);
         });
     }
 
diff --git a/core/src/mindustry/world/Block.java b/core/src/mindustry/world/Block.java
index 0327c36ab0..167f7e8b4b 100644
--- a/core/src/mindustry/world/Block.java
+++ b/core/src/mindustry/world/Block.java
@@ -468,7 +468,7 @@ public class Block extends UnlockableContent{
         if(hasItems && configurable){
             bars.add("items", entity -> new Bar(() -> Core.bundle.format("bar.items", entity.items.total()), () -> Pal.items, () -> (float)entity.items.total() / itemCapacity));
         }
-        
+
         if(unitCapModifier != 0){
             stats.add(Stat.maxUnits, (unitCapModifier < 0 ? "-" : "+") + Math.abs(unitCapModifier));
         }
@@ -824,7 +824,7 @@ public class Block extends UnlockableContent{
         }
 
         clipSize = Math.max(clipSize, size * tilesize);
-        
+
         //only kept to ensure compatibility with v6 mods.
         if(expanded){
             clipSize += tilesize * 10f;
@@ -989,4 +989,9 @@ public class Block extends UnlockableContent{
         packer.add(PageType.editor, name + "-icon-editor", editorBase);
     }
 
+    public void flipRotation(BuildPlan req, boolean x){
+        if(x == (req.rotation % 2 == 0)){
+            req.rotation = Mathf.mod(req.rotation + 2, 4);
+        }
+    }
 }