Changeset d4b9d28 in mainline

Timestamp:

2009-06-23T18:33:17Z (15 years ago)

Author:

Jiri Svoboda <jirik.svoboda@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

7b47fa2

Parents:

52e4f52

Message:

Tetris high-score table now persists across multiple Tetris executions (and also propagate between concurrently running instances). It is much more stupid than the original BSD implementation, but it works.

Location:

uspace/app/tetris

Files:

• scores.c (modified) (1 diff)
• scores.h (modified) (1 diff)
• tetris.c (modified) (4 diffs)

uspace/app/tetris/scores.c

@@ -197 +197 @@
 }
 
+int loadscores(void)
+{
+        FILE *f;
+        size_t cnt;
+        int rc;
+
+        f = fopen("/tetris.sco", "rb");
+        if (f == NULL)
+                return ENOENT;
+
+        cnt = fread(scores, sizeof(struct highscore), NUMSPOTS, f);
+        rc = fclose(f);
+
+        if (cnt != NUMSPOTS || rc != 0)
+                return EIO;
+
+        return EOK;
+}
+
+void savescores(void)
+{
+        FILE *f;
+        size_t cnt;
+        int rc;
+
+        f = fopen("/tetris.sco", "wb");
+        cnt = fwrite(scores, sizeof(struct highscore), NUMSPOTS, f);
+        rc = fclose(f);
+
+        if (cnt != NUMSPOTS || rc != 0)
+                printf("Error saving score table\n");
+}
+
 /** @}
  */

uspace/app/tetris/scores.h

@@ -65 +65 @@
 extern void initscores(void);
 extern void insertscore(int score, int level);
+extern int loadscores(void);
+extern void savescores(void);
 
 /** @}

uspace/app/tetris/tetris.c

@@ -50 +50 @@
 #include <sys/types.h>
 #include <err.h>
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -207 +208 @@
                                 break;
                         case 'h':
+                                loadscores();
                                 showscores(firstgame);
                                 tetris_menu_draw(*level);
@@ -298 +300 @@
         
         scr_init();
-        initscores();
+        if (loadscores() != EOK)
+                initscores();
+
         while (tetris_menu(&level)) {
                 fallrate = 1000000 / level;
@@ -416 +420 @@
                 
                 scr_clear();
+                loadscores();
                 insertscore(score, level);
+                savescores();
                 score = 0;
         }