fix possible division by zero when rounding

README.md

@@ -1 +1,52 @@
-# KF2-ZedSpawner
+# ZedSpawner
+
+[![Steam Workshop](https://img.shields.io/static/v1?message=workshop&logo=steam&labelColor=gray&color=blue&logoColor=white&label=steam%20)](https://steamcommunity.com/sharedfiles/filedetails/?id=2811290931)
+[![Steam Subscriptions](https://img.shields.io/steam/subscriptions/2811290931)](https://steamcommunity.com/sharedfiles/filedetails/?id=2811290931)
+[![Steam Favorites](https://img.shields.io/steam/favorites/2811290931)](https://steamcommunity.com/sharedfiles/filedetails/?id=2811290931)
+[![Steam Update Date](https://img.shields.io/steam/update-date/2811290931)](https://steamcommunity.com/sharedfiles/filedetails/?id=2811290931)
+[![GitHub tag (latest by date)](https://img.shields.io/github/v/tag/GenZmeY/KF2-ZedSpawner)](https://github.com/GenZmeY/KF2-ZedSpawner/tags)
+[![GitHub](https://img.shields.io/github/license/GenZmeY/KF2-ZedSpawner)](LICENSE)
+
+# Description
+Spawner for zeds. Started as a modification of the [PissJar](https://steamcommunity.com/sharedfiles/filedetails/?id=1082749153) and [Windows 10](https://steamcommunity.com/sharedfiles/filedetails/?id=2488241348) version, but grew into something completely different...  
+
+# Features
+- spawn without increasing zed counter;
+- spawn depends on the number of players;
+- cyclic spawn (useful for endless mode);
+- separate spawn for special waves and boss waves;
+- spawn after a certain percentage of killed zeds.
+
+# Usage
+**UNDER CONSTRUCTION**
+
+[Spawn Calculator](https://docs.google.com/spreadsheets/d/1q67WJ36jhj6Y0lPNO5tS2bU79Wphu4Xmi62me6DAwtM/edit?usp=sharing)
+
+# Build
+**Note:** If you want to build/test/brew/publish a mutator without git-bash and/or scripts, follow [these instructions](https://tripwireinteractive.atlassian.net/wiki/spaces/KF2SW/pages/26247172/KF2+Code+Modding+How-to) instead of what is described here.
+1. Install [Killing Floor 2](https://store.steampowered.com/app/232090/Killing_Floor_2/), Killing Floor 2 - SDK and [git for windows](https://git-scm.com/download/win);
+2. open git-bash and go to any folder where you want to store sources:  
+`cd <ANY_FOLDER_YOU_WANT>`  
+3. Clone this repository and go to the source folder:  
+`git clone https://github.com/GenZmeY/KF2-ZedSpawner && cd KF2-ZedSpawner`
+4. Download dependencies:  
+`git submodule init && git submodule update`  
+5. Compile:  
+`./tools/builder -c`  
+5. The compiled files will be here:  
+`C:\Users\<USERNAME>\Documents\My Games\KillingFloor2\KFGame\Unpublished\BrewedPC\Script\`
+
+# Testing
+Open git-bash in the source folder and run command:  
+`./tools/builder -t`  
+(or `./tools/builder -ct` if you haven't compiled the mutator yet)  
+
+A local single-user test will be launched with parameters from `builder.cfg` (edit this file if you want to test mutator with different parameters).
+
+# Bug reports
+If you find a bug, go to the [issue page](https://github.com/GenZmeY/KF2-ZedSpawner/issues) and check if there is a description of your bug. If not, create a new issue.  
+Describe what the bug looks like and how reproduce it.  
+Attaching your KFZedSpawner.ini and Launch.log can also be helpful.
+
+# License
+[GNU GPLv3](LICENSE)

ZedSpawner/Classes/Spawn.uc

@@ -63,6 +63,12 @@ public static function bool Load(E_LogLevel LogLevel)
 		Errors = true;
 	}
 	
+	if (default.SingleSpawnLimitMultiplier <= 0.f)
+	{
+		`ZS_Error("SingleSpawnLimitMultiplier" @ "(" $ default.SingleSpawnLimitMultiplier $ ")" @ "must be greater than 0.0");
+		Errors = true;
+	}
+	
 	if (default.SingleSpawnLimitPlayerMultiplier < 0.f)
 	{
 		`ZS_Error("SingleSpawnLimitPlayerMultiplier" @ "(" $ default.SingleSpawnLimitPlayerMultiplier $ ")" @ "must be greater than or equal 0.0");

ZedSpawner/Classes/ZedSpawner.uc

@@ -35,8 +35,8 @@ struct S_SpawnEntry
 	var float  RelativeStart;
 	var int    DelayDefault;
 	var int    Delay;
-	var int    SpawnsLeft;
+	var int    PawnsLeft;
-	var int    SpawnsTotal;
+	var int    PawnsTotal;
 	var bool   SpawnAtPlayerStart;
 	var bool   ForceSpawn;
 	var String ZedNameFiller;
@@ -287,7 +287,7 @@ private function SpawnTimer()
 			continue;
 		}
 		
-		if (SE.SpawnsLeft > 0)
+		if (SE.PawnsLeft > 0)
 		{
 			SpawnEntry(SpawnListCurrent, Index);
 		}
@@ -403,8 +403,9 @@ private function AdjustSpawnList(out Array<S_SpawnEntry> List)
 	local S_SpawnEntry SE;
 	local int Index;
 	local float Cycle, Players;
-	local float MSB, MSC, MSP;
+	local float B, TM, TCM, TPM;
-	local float MLB, MLC, MLP;
+	local float L, LM, LCM, LPM;
+	local float PawnTotalF, PawnLimitF;
 	local int ZedNameMaxLength;
 	
 	`ZS_Trace(`Location);
@@ -412,13 +413,16 @@ private function AdjustSpawnList(out Array<S_SpawnEntry> List)
 	Cycle   = float(CurrentCycle);
 	Players = float(PlayerCount());
 	
-	MSB = CfgSpawn.default.ZedTotalMultiplier;
+	B   = float(SE.SpawnCountBase);
-	MSC = CfgSpawn.default.SpawnTotalCycleMultiplier;
+	L   = float(SE.SingleSpawnLimitDefault);
-	MSP = CfgSpawn.default.SpawnTotalPlayerMultiplier;
+	
+	TM  = CfgSpawn.default.ZedTotalMultiplier;
+	TCM = CfgSpawn.default.SpawnTotalCycleMultiplier;
+	TPM = CfgSpawn.default.SpawnTotalPlayerMultiplier;
 		
-	MLB = CfgSpawn.default.SingleSpawnLimitMultiplier;
+	LM  = CfgSpawn.default.SingleSpawnLimitMultiplier;
-	MLC = CfgSpawn.default.SingleSpawnLimitCycleMultiplier;
+	LCM = CfgSpawn.default.SingleSpawnLimitCycleMultiplier;
-	MLP = CfgSpawn.default.SingleSpawnLimitPlayerMultiplier;
+	LPM = CfgSpawn.default.SingleSpawnLimitPlayerMultiplier;
 	
 	ZedNameMaxLength = 0;
 	foreach List(SE, Index)
@@ -437,11 +441,14 @@ private function AdjustSpawnList(out Array<S_SpawnEntry> List)
 			else
 				List[Index].Delay = 0;
 		}
-
+		
-		List[Index].ForceSpawn     = false;
+		PawnTotalF = B * (TM + TCM * (Cycle - 1.0f) + TPM * (Players - 1.0f));
-		List[Index].SpawnsTotal      = Round(SE.SpawnCountBase          * (MSB + MSC * (Cycle - 1.0f) + MSP * (Players - 1.0f)));
+		PawnLimitF = L * (LM + LCM * (Cycle - 1.0f) + LPM * (Players - 1.0f));
-		List[Index].SingleSpawnLimit = Round(SE.SingleSpawnLimitDefault * (MLB + MLC * (Cycle - 1.0f) + MLP * (Players - 1.0f)));
+		
-		List[Index].SpawnsLeft       = List[Index].SpawnsTotal;
+		List[Index].ForceSpawn       = false;
+		List[Index].PawnsTotal       = Max(Round(PawnTotalF), 1);
+		List[Index].SingleSpawnLimit = Max(Round(PawnLimitF), 1);
+		List[Index].PawnsLeft        = List[Index].PawnsTotal;
 	}
 	
 	foreach List(SE, Index)
@@ -476,7 +483,7 @@ private function SpawnTimerLogger(bool Stop, optional String Comment)
 private function SpawnEntry(out Array<S_SpawnEntry> SpawnList, int Index)
 {
 	local S_SpawnEntry SE;
-	local int FreeSpawnSlots, SpawnCount, Spawned;
+	local int FreeSpawnSlots, PawnCount, Spawned;
 	local String Action, Comment, NextSpawn;
 	
 	`ZS_Trace(`Location);
@@ -486,13 +493,13 @@ private function SpawnEntry(out Array<S_SpawnEntry> SpawnList, int Index)
 	SpawnList[Index].Delay = SE.DelayDefault;
 	if (FRand() <= SE.Probability || SE.ForceSpawn)
 	{
-		if (SE.SingleSpawnLimit == 0 || SE.SpawnsLeft < SE.SingleSpawnLimit)
+		if (SE.SingleSpawnLimit == 0 || SE.PawnsLeft < SE.SingleSpawnLimit)
 		{
-			SpawnCount = SE.SpawnsLeft;
+			PawnCount = SE.PawnsLeft;
 		}
 		else
 		{
-			SpawnCount = SE.SingleSpawnLimit;
+			PawnCount = SE.SingleSpawnLimit;
 		}
 		
 		if (CfgSpawn.default.bShadowSpawn && !KFGIS.MyKFGRI.IsBossWave())
@@ -501,16 +508,16 @@ private function SpawnEntry(out Array<S_SpawnEntry> SpawnList, int Index)
 			if (FreeSpawnSlots == 0)
 			{
 				NoFreeSpawnSlots = true;
-				SpawnList[Index].SpawnsLeft = 0;
+				SpawnList[Index].PawnsLeft = 0;
 				return;
 			}
-			else if (SpawnCount > FreeSpawnSlots)
+			else if (PawnCount > FreeSpawnSlots)
 			{
-				SpawnCount = FreeSpawnSlots;
+				PawnCount = FreeSpawnSlots;
 			}
 		}
 		
-		Spawned = SpawnZed(SE.ZedClass, SpawnCount, SE.SpawnAtPlayerStart);
+		Spawned = SpawnZed(SE.ZedClass, PawnCount, SE.SpawnAtPlayerStart);
 		if (Spawned == INDEX_NONE)
 		{
 			SpawnList[Index].Delay = 5;
@@ -538,10 +545,10 @@ private function SpawnEntry(out Array<S_SpawnEntry> SpawnList, int Index)
 		Spawned = SE.SingleSpawnLimit;
 	}
 
-	SpawnList[Index].SpawnsLeft -= Spawned;
+	SpawnList[Index].PawnsLeft -= Spawned;
-	if (SpawnList[Index].SpawnsLeft > 0)
+	if (SpawnList[Index].PawnsLeft > 0)
 	{
-		NextSpawn = "next after" @ SE.DelayDefault $ "sec," @ "pawns left:" @ SpawnList[Index].SpawnsLeft;
+		NextSpawn = "next after" @ SE.DelayDefault $ "sec," @ "pawns left:" @ SpawnList[Index].PawnsLeft;
 	}
 	SpawnLog(SE, Action, Comment, NextSpawn);
 }
@@ -593,7 +600,7 @@ private function Vector PlayerStartLocation()
 	return KFGIS.FindPlayerStart(None, 0).Location;
 }
 
-private function int SpawnZed(class<KFPawn_Monster> ZedClass, int SpawnCount, bool SpawnAtPlayerStart)
+private function int SpawnZed(class<KFPawn_Monster> ZedClass, int PawnCount, bool SpawnAtPlayerStart)
 {
 	local Array<class<KFPawn_Monster> > CustomSquad;
 	local Vector SpawnLocation, PlayerStart;
@@ -614,7 +621,7 @@ private function int SpawnZed(class<KFPawn_Monster> ZedClass, int SpawnCount, bo
 	}
 	else
 	{
-		for (Index = 0; Index < SpawnCount; Index++)
+		for (Index = 0; Index < PawnCount; Index++)
 		{
 			CustomSquad.AddItem(ZedClass);
 		}
@@ -635,7 +642,7 @@ private function int SpawnZed(class<KFPawn_Monster> ZedClass, int SpawnCount, bo
 	}
 
 	Spawned = 0; Failed = 0;
-	while (Failed + Spawned < SpawnCount)
+	while (Failed + Spawned < PawnCount)
 	{
 		KFPM = Spawn(ZedClass,,, SpawnLocation, rot(0,0,1),, true);
 		if (KFPM == None)