Stages are registered in a global array

src/main.c

@@ -11,8 +11,7 @@
 #include "taisei_err.h"
 
 #include "global.h"
-#include "stages/stage0.h"
-#include "stages/stage1.h"
+#include "stage.h"
 #include "menu/mainmenu.h"
 #include "paths/native.h"
 
@@ -116,12 +115,11 @@ int main(int argc, char** argv) {
 		}
 		
 		init_player(&global.plr);
+		StageInfo* stg = stage_get(atoi(argv[1]) - 1);
 		
-		switch(atoi(argv[1])) {
-		case 1:
-			stage0_loop();
-		case 2:
-			stage1_loop();
+		if(stg) {
+			printf("** Entering %s.\n", stg->title);
+			stg->loop();
 			return 1;
 		}
 		

src/menu/options.c

@@ -3,7 +3,7 @@
  * See COPYING for further information. 
  * ---
  * Copyright (C) 2011, Lukas Weber <laochailan@web.de>
- * Copyright (C) 2011, Alexeyew Andrew <https://github.com/nexAkari>
+ * Copyright (C) 2011, Alexeyew Andrew <http://akari.thebadasschoobs.org/>
  */
 
 #include <stdio.h>

src/stage.c

@@ -11,6 +11,23 @@
 #include "global.h"
 #include "menu/ingamemenu.h"
 
+StageInfo stages[] = {
+	// TODO: Give the stages actual titles/subtitles
+	
+	{stage0_loop, False, "Stage 1", "(insert subtitle here)"},
+	{stage1_loop, False, "Stage 2", "(insert subtitle here)"},
+	
+	{NULL, False, NULL, NULL}
+};
+
+StageInfo* stage_get(int n) {
+	int i;
+	for(i = 0; stages[i].loop; ++i)
+		if(i == n)
+			return &(stages[i]);
+	return NULL;
+}
+
 void stage_start() {
 	global.timer = 0;
 	global.frames = 0;

src/stage.h

@@ -30,8 +30,21 @@
 typedef void (*StageRule)(void);
 typedef void (*ShaderRule)(int);
 
+typedef struct StageInfo {
+	StageRule loop;
+	int hidden;
+	// reserved for draw_stage_title when/if it's used
+	char *title;
+	char *subtitle;
+} StageInfo;
+
+StageInfo* stage_get(int);
 void stage_loop(StageRule start, StageRule end, StageRule draw, StageRule event, ShaderRule *shaderrules, int endtime);
 
 void apply_bg_shaders(ShaderRule *shaderrules);
 void draw_stage_title(int t, int dur, char *stage, char *subtitle);
-#endif
+
+void stage0_loop();
+void stage1_loop();
+
+#endif