From: Matthew Mondor <mmondor@pulsar-zone.net>
Date: Tue, 25 Apr 2023 17:09:14 +0000 (+0000)
Subject: Load/Save high score from/to file.
X-Git-Url: http://git.pulsar-zone.net/?a=commitdiff_plain;h=750b5ee6b8abc3aa092d7bc4296decce68b21a30;p=pacman.git

Load/Save high score from/to file.
---

diff --git a/pacman.c b/pacman.c
index d84d2bb..6ec6b1c 100755
--- a/pacman.c
+++ b/pacman.c
@@ -49,12 +49,19 @@ void MovePacman(void);                                  //Update Pacman's locati
 void PauseGame(void);                                   //Pause
 void PrintHelp(char* name);                             //Print help and exit
 int  GameOverScreen(void);
+void HighScoreInit(void);
+void HighScoreLoad(void);
+void HighScoreSave(void);
+
 
 /*******************
 * GLOBAL VARIABLES *
 *******************/
 //I know global variables are bad, but it's just sooo easy!
 
+//File to load/save high score
+char *highscorefullpath = NULL;
+
 //Windows used by curses
 WINDOW * win;
 WINDOW * status;
@@ -123,6 +130,9 @@ int main(int argc, char *argv[100]) {
 
     srand( (unsigned)time( NULL ) );
 
+    HighScoreInit();
+    HighScoreLoad();
+
     InitCurses();                   //Must be called to start curses
     CheckScreenSize();              //Make sure screen is big enough
     CreateWindows(30, 28, 1, 1);    //Create the main and status windows
@@ -263,6 +273,7 @@ int GameOverScreen(void) {
     if (Points > HiPoints) {
 	    HiPoints = Points;
 	    HiLevelNumber = LevelNumber;
+	    HighScoreSave();
     }
 
     werase(win);
@@ -866,3 +877,64 @@ void PrintHelp(char* name) {
     printf("  --level=LEVEL     play specified non-standard LEVEL\n");
 }
 
+
+#define HIGHSCOREFULLPATHBUFSIZ 256
+
+void HighScoreInit(void)
+{
+	char *home;
+
+	if (highscorefullpath != NULL)
+		return;
+
+	if ((highscorefullpath = malloc(HIGHSCOREFULLPATHBUFSIZ)) == NULL)
+		goto err;
+	if ((home = getenv("HOME")) == NULL)
+		goto err;
+	(void)snprintf(highscorefullpath, HIGHSCOREFULLPATHBUFSIZ - 1,
+	    "%s/%s", home, HIGHSCORE_FILE);
+	highscorefullpath[HIGHSCOREFULLPATHBUFSIZ - 1] = '\0';
+
+	return;
+err:
+	if (highscorefullpath != NULL) {
+		free(highscorefullpath);
+		highscorefullpath = NULL;
+	}
+}
+
+void HighScoreLoad(void)
+{
+	FILE *fh;
+	char line[64];
+
+	if (highscorefullpath == NULL)
+		return;
+
+	if ((fh = fopen(highscorefullpath, "r")) != NULL) {
+		if (fgets(line, 63, fh) != NULL) {
+			line[63] = '\0';
+			HiPoints = atoi(line);
+		}
+		if (fgets(line, 63, fh) != NULL) {
+			line[63] = '\0';
+			HiLevelNumber = atoi(line);
+		}
+		(void)fclose(fh);
+	}
+}
+
+/* XXX Should ideally save in a new unique file and rename for safety */
+void HighScoreSave(void)
+{
+	FILE *fh;
+
+	if (highscorefullpath == NULL)
+		return;
+
+	if ((fh = fopen(highscorefullpath, "w")) != NULL) {
+		(void)fprintf(fh, "%d\n", HiPoints);
+		(void)fprintf(fh, "%d\n", HiLevelNumber);
+		(void)fclose(fh);
+	}
+}
diff --git a/pacman.h b/pacman.h
index db027f0..1ed88c0 100755
--- a/pacman.h
+++ b/pacman.h
@@ -10,3 +10,4 @@ int Points = 0;                     //Initial points
 int Lives = 3;                      //Number of lives you start with
 int HowSlow = 3;                    //How slow vulnerable ghost move
 #define FPS 5
+#define HIGHSCORE_FILE ".pacman_highscore"