(551008fc1) Abandon FixLeakObjective when the goto subobjective cannot be completed. Reset AIObjectiveLoops when the objective is activated or added. Don't clear ignored targets periodically by default. Calculate AIObjectiveGoTo CloseEnough when the objective is created. Don't use arm length in CloseEnough, because it's not used in range checks. Partial fixes to #1343.

Barotrauma/BarotraumaShared/Source/Characters/AI/Objectives/AIObjectiveFixLeak.cs

@@ -101,7 +101,8 @@ namespace Barotrauma
                 HumanAIController.AnimController.Crouching = true;
             }
 
-            float reach = HumanAIController.AnimController.ArmLength + ConvertUnits.ToSimUnits(repairTool.Range);
+            //float reach = HumanAIController.AnimController.ArmLength + ConvertUnits.ToSimUnits(repairTool.Range);
+            float reach = ConvertUnits.ToSimUnits(repairTool.Range);
             bool cannotReach = ConvertUnits.ToSimUnits(gapDiff.Length()) > reach;
             if (cannotReach)
             {
@@ -110,14 +111,19 @@ namespace Barotrauma
                     // Check if the objective is already removed -> completed/impossible
                     if (!subObjectives.Contains(gotoObjective))
                     {
+                        if (!gotoObjective.CanBeCompleted)
+                        {
+                            abandon = true;
+                        }
                         gotoObjective = null;
+                        return;
                     }
                 }
                 else
                 {
                     gotoObjective = new AIObjectiveGoTo(ConvertUnits.ToSimUnits(GetStandPosition()), character)
                     {
-                        CloseEnough = reach * 0.75f
+                        CloseEnough = reach
                     };
                     if (!subObjectives.Contains(gotoObjective))
                     {