From 996addcaf8351291b1f30b06e83f88c79dfdedb6 Mon Sep 17 00:00:00 2001
From: punchready <marlin.gorsleben@gmail.com>
Date: Mon, 19 Jul 2021 14:36:18 +0200
Subject: [PATCH] fix: fix terrible vector handling

---
 .../java/uulm/teamname/marvelous/gamelibrary/IntVector2.java  | 4 +++-
 .../teamname/marvelous/gamelibrary/gamelogic/GameLogic.java   | 4 ++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/main/java/uulm/teamname/marvelous/gamelibrary/IntVector2.java b/src/main/java/uulm/teamname/marvelous/gamelibrary/IntVector2.java
index fa076f3..801e45a 100644
--- a/src/main/java/uulm/teamname/marvelous/gamelibrary/IntVector2.java
+++ b/src/main/java/uulm/teamname/marvelous/gamelibrary/IntVector2.java
@@ -79,7 +79,9 @@ public class IntVector2 implements Serializable {
     }
 
     public IntVector2 sub(int x, int y) {
-        return new IntVector2(this.x - x, this.y - y);
+        this.x -= x;
+        this.y -= y;
+        return this;
     }
 
     public IntVector2 sub(IntVector2 v) {
diff --git a/src/main/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameLogic.java b/src/main/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameLogic.java
index a1c2f38..f885d9c 100644
--- a/src/main/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameLogic.java
+++ b/src/main/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameLogic.java
@@ -711,7 +711,7 @@ public class GameLogic {
         }
 
         for(IntVector2 dir: IntVector2.CardinalDirections) {
-            IntVector2 pos = start.add(dir);
+            IntVector2 pos = start.copy().add(dir);
             if(pos.getX() < 0 || pos.getX() >= state.mapSize.getX() || pos.getY() < 0 || pos.getY() >= state.mapSize.getY()) {
                 return options;
             }
@@ -721,7 +721,7 @@ public class GameLogic {
         }
 
         if(options.size() == 0) {
-            return getFreeNeighbour(state, start.add(IntVector2.CardinalDirections[rand.nextInt(IntVector2.CardinalDirections.length)]));
+            return getFreeNeighbour(state, start.copy().add(IntVector2.CardinalDirections[rand.nextInt(IntVector2.CardinalDirections.length)]));
         }else {
             return options;
         }