From 08eada80a4fd13028f2a19108788f76752cc459b Mon Sep 17 00:00:00 2001
From: Mitja Felicijan <mitja.felicijan@gmail.com>
Date: Fri, 1 May 2026 03:44:54 +0200
Subject: Custom FPS cli argument

---
 all.h                                     |  1 +
 game.c                                    |  2 +-
 main.c                                    | 22 +++++++++++++++++++---
 tbrun.sh                                  | 10 +++++++++-
 trenchbroom/stalag/GameEngineProfiles.cfg |  2 +-
 5 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/all.h b/all.h
index 26ccffb..8821f86 100644
--- a/all.h
+++ b/all.h
@@ -130,6 +130,7 @@ typedef struct {
 	Camera camera;
 	bool cursor_captured;
 	bool vsync;
+	int target_fps;
 	Font font_ui;
 
 	PlayerState player;
diff --git a/game.c b/game.c
index 40d1876..d1149b4 100644
--- a/game.c
+++ b/game.c
@@ -42,7 +42,7 @@ void UpdateGame(void) {
 			SetTargetFPS(GetMonitorRefreshRate(GetCurrentMonitor()));
 		} else {
 			ClearWindowState(FLAG_VSYNC_HINT);
-			SetTargetFPS(0);
+			SetTargetFPS(game.target_fps);
 		}
 	}
 
diff --git a/main.c b/main.c
index 9f32ecc..1ca42bd 100644
--- a/main.c
+++ b/main.c
@@ -10,15 +10,17 @@ int main(int argc, char *argv[]) {
 	sb_append_cstr(&map_path, "maps/demo3.map");
 
 	bool skip_title = false;
+	int target_fps = -1;
 
 	static struct option long_options[] = {
 		{"map", required_argument, 0, 'm'},
+		{"fps", required_argument, 0, 'f'},
 		{0, 0, 0, 0}
 	};
 
 	int opt;
 	int option_index = 0;
-	while ((opt = getopt_long_only(argc, argv, "m:", long_options, &option_index)) != -1) {
+	while ((opt = getopt_long_only(argc, argv, "m:f:", long_options, &option_index)) != -1) {
 		switch (opt) {
 			case 'm':
 				sb_free(&map_path);
@@ -26,20 +28,34 @@ int main(int argc, char *argv[]) {
 				sb_append_cstr(&map_path, optarg);
 				skip_title = true;
 				break;
+			case 'f':
+				target_fps = atoi(optarg);
+				break;
 		}
 	}
 
-	SetConfigFlags(FLAG_VSYNC_HINT | FLAG_WINDOW_RESIZABLE | FLAG_WINDOW_HIGHDPI);
+	unsigned int flags = FLAG_WINDOW_RESIZABLE | FLAG_WINDOW_HIGHDPI;
+	if (target_fps < 0) flags |= FLAG_VSYNC_HINT;
+
+	SetConfigFlags(flags);
 	InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, WINDOW_TITLE);
 
 	int monitor = GetCurrentMonitor();
 	SetWindowPosition((GetMonitorWidth(monitor) - GetScreenWidth()) / 2, (GetMonitorHeight(monitor) - GetScreenHeight()) / 2);
-	SetTargetFPS(GetMonitorRefreshRate(monitor));
 
 	vfs_init(VFS_DATA_PAK);
 	InitGame();
 	SetMap(map_path.data);
 
+	if (target_fps >= 0) {
+		game.target_fps = target_fps;
+		game.vsync = false;
+		SetTargetFPS(game.target_fps);
+	} else {
+		game.vsync = true;
+		SetTargetFPS(GetMonitorRefreshRate(monitor));
+	}
+
 	if (skip_title) {
 		if (LoadMap(game.map_path)) {
 			game.mode = STATE_PLAYING;
diff --git a/tbrun.sh b/tbrun.sh
index d933b6d..bf810bc 100755
--- a/tbrun.sh
+++ b/tbrun.sh
@@ -19,6 +19,7 @@ SCRIPT_DIR="$(cd "$(dirname "$SCRIPT")" && pwd -P)"
 echo "$SCRIPT_DIR"
 
 MAP=""
+FPS=""
 while [ $# -gt 0 ]; do
 	case "$1" in
 		--map)
@@ -28,6 +29,13 @@ while [ $# -gt 0 ]; do
 		--map=*)
 			MAP="${1#--map=}"
 			;;
+		--fps)
+			shift
+			FPS="$1"
+			;;
+		--fps=*)
+			FPS="${1#--fps=}"
+			;;
 		--) shift; break;;
 		*) ;;
 	esac
@@ -35,4 +43,4 @@ while [ $# -gt 0 ]; do
 done
 
 cd "$SCRIPT_DIR"
-./bin/stalag --map "$MAP"
+./bin/stalag --map "$MAP" --fps "$FPS"
diff --git a/trenchbroom/stalag/GameEngineProfiles.cfg b/trenchbroom/stalag/GameEngineProfiles.cfg
index 41cc5fb..fb04830 100644
--- a/trenchbroom/stalag/GameEngineProfiles.cfg
+++ b/trenchbroom/stalag/GameEngineProfiles.cfg
@@ -2,7 +2,7 @@
   "profiles": [
     {
       "name": "Stalag",
-      "parameters": "--map maps/${MAP_BASE_NAME}.map",
+      "parameters": "--fps 120 --map maps/${MAP_BASE_NAME}.map",
       "path": "/home/m/Projects/stalag/tbrun.sh"
     }
   ],
-- 
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