xlib_playground

commit 665c96e6ef6399f0e5da40fe40badc208b1eba47
parent b16e78a9086da907290ff39cc6321109a4f5d70b
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Sun, 15 Jan 2023 05:57:29 +0900

initialize pointers with NULL

Diffstat:
M
ex9/main.c
 | 
19
+++++++------------

1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/ex9/main.c b/ex9/main.c
@@ -58,7 +58,7 @@ enum debug_msg {
 
 /* variables */
 enum next_menu next_menu = START_MENU;
-void (* col_func[NUM_OBJ_TYPE][NUM_OBJ_TYPE])(Object *, Object *);
+void (* col_func[NUM_OBJ_TYPE][NUM_OBJ_TYPE])(Object *, Object *) = {0};
 
 /* function prototypes */
 /* menus */
@@ -140,9 +140,9 @@ game_play(void)
 	enum key_state key_state[NUM_KEY];
 	long t0, t1, dt;
 	struct timespec ts;
-	List *ol; // block list
-	Object *player;
-	List *olc; // cursor used to scan ol
+	List *ol = NULL; // block list
+	Object *player = NULL;
+	List *olc = NULL; // cursor used to scan ol
 	int scroll_dst = 0;
 	int scroll_margin = WIN_WIDTH * 2 / 5;
 
@@ -153,12 +153,7 @@ game_play(void)
 
 	struct rusage rusage; // for debuging of memory leak
 
-	ol = NULL;
-
 	/* setup collision handler */
-	for (int i = 0; i < NUM_OBJ_TYPE; i++)
-		for (int j = 0; j < NUM_OBJ_TYPE; j++)
-			col_func[i][j] = NULL;
 	col_func[TPLAYER][TFLAG] = col_func[TFLAG][TPLAYER] = &col_pf;
 	col_func[TPLAYER][TBLOCK] = col_func[TBLOCK][TPLAYER] = &col_pb;
 	col_func[TPLAYER][TENEMY] = col_func[TENEMY][TPLAYER] = &col_pe;
@@ -176,7 +171,7 @@ game_play(void)
 				BLOCK_SIZE * BLOCK_SIZE,
 				NULL));
 			if (olc == NULL) {
-				fprintf(stderr, "error: adding item to list ol\n");
+				fprintf(stderr, "main: error. adding item to list ol\n");
 			} else {
 				ol = olc;
 			}
@@ -190,7 +185,7 @@ game_play(void)
 				NULL);
 			olc = laddfront(ol, player);
 			if (player == NULL || olc == NULL) {
-				fprintf(stderr, "error: creating player\n");
+				fprintf(stderr, "main: error. creating player\n");
 				exit(1);
 			} else {
 				ol = olc;
@@ -204,7 +199,7 @@ game_play(void)
 				BLOCK_SIZE * BLOCK_SIZE,
 				NULL));
 			if (olc == NULL) {
-				fprintf(stderr, "error: adding item to list ol\n");
+				fprintf(stderr, "main: error. adding item to list ol\n");
 			} else {
 				ol = olc;
 			}