X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fgame.c;fp=src%2Fgame.c;h=38136aa7a0e9fe52f1b81764e6ff931244ad4928;hb=b0f9c6ecc15c2d4b5df77a7a963b742a6352ee1a;hp=0000000000000000000000000000000000000000;hpb=bb895563088da093a90f42fc6a532688adc36cf2;p=gbajam22

diff --git a/src/game.c b/src/game.c
new file mode 100644
index 0000000..38136aa
--- /dev/null
+++ b/src/game.c
@@ -0,0 +1,52 @@
+#include <string.h>
+#include "gba.h"
+#include "game.h"
+
+struct screen *init_menu_screen(void);
+struct screen *init_game_screen(void);
+
+struct screen *curscr;
+
+#define MAX_SCR	4
+static struct screen *scrlist[MAX_SCR];
+static int num_scr;
+
+int init_screens(void)
+{
+	if(!(scrlist[num_scr++] = init_menu_screen())) {
+		return -1;
+	}
+	if(!(scrlist[num_scr++] = init_game_screen())) {
+		return -1;
+	}
+	return 0;
+}
+
+int change_screen(struct screen *scr)
+{
+	if(!scr) return -1;
+
+	mask(INTR_VBLANK);
+
+	if(scr->start && scr->start() == -1) {
+		return -1;
+	}
+	if(curscr && curscr->stop) {
+		curscr->stop();
+	}
+	curscr = scr;
+
+	unmask(INTR_VBLANK);
+	return 0;
+}
+
+struct screen *find_screen(const char *name)
+{
+	int i;
+	for(i=0; i<num_scr; i++) {
+		if(strcmp(scrlist[i]->name, name) == 0) {
+			return scrlist[i];
+		}
+	}
+	return 0;
+}