score.c

   1 #include "config.h"
   2
   3 #include "SFont.h"
   4 #include "file.h"
   5 #include "score.h"
   6
   7 #include <SDL.h>
   8 #include <SDL_keysym.h>
   9 #include <stdint.h>
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13
  14 // High score table
  15 struct highscore g_scores[N_SCORES] = {
  16         {13000,"Pad"},
  17         {12500,"Pad"},
  18         {6500,"Pad"},
  19         {5000,"Pad"},
  20         {3000,"Pad"},
  21         {2500,"Pad"},
  22         {2000,"Pad"},
  23         {1500,"Pad"}
  24 };
  25
  26 extern SFont_Font *g_font;
  27
  28 int cur_score; // which score we're currently entering.
  29
  30 void
  31 read_high_score_table()
  32 {
  33         FILE *f;
  34         int i;
  35
  36         f = open_score_file("r");
  37         if(f) {
  38                 // If the file exists, read from it
  39                 for(i = 0; i<N_SCORES; i++) {
  40                         g_scores[i].score = 0;
  41                         g_scores[i].name[0] = 0;
  42                         fscanf(f, "%d %31[^\n]", &g_scores[i].score, g_scores[i].name);
  43                 }
  44                 fclose(f);
  45         }
  46 }
  47
  48 void
  49 write_high_score_table()
  50 {
  51         FILE *f;
  52         int i;
  53
  54         f = open_score_file("w");
  55         if(f) {
  56                 // If the file exists, write to it
  57                 for(i = 0; i<N_SCORES; i++) {
  58                         fprintf (f, "%d %.31s\n", g_scores[i].score, g_scores[i].name);
  59                 }
  60                 fclose(f);
  61         }
  62 }
  63
  64 int
  65 score_rank(int score)
  66 {
  67         int i;
  68
  69         for(i=0; i<N_SCORES; i++) {
  70                 if(score > g_scores[i].score) return i;
  71         }
  72         return -1;
  73 }
  74
  75 int
  76 new_high_score(int score)
  77 {
  78         int i;
  79
  80         cur_score = -1;  // assume not a new high score
  81         if(score <= g_scores[LOW_SCORE].score) return false;
  82         read_high_score_table();
  83         cur_score = score_rank(score);
  84         if(cur_score < 0) return false;
  85
  86         // Move all lower scores down a notch, losing lowest score forever.
  87         for(i=LOW_SCORE; i>cur_score; i--) g_scores[i] = g_scores[i-1];
  88
  89         // initialize new score entry.
  90         g_scores[cur_score].score = score;
  91         for(i=0; i<32; i++) g_scores[cur_score].name[i] = 0;
  92         return true;
  93 }
  94
  95 int
  96 snprintscore(char *s, size_t n, int score)
  97 {
  98         int min = score/60000;
  99         int sec = score/1000%60;
 100         int tenths = score%1000/100;
 101         if(min) {
 102                 return snprintf(s, n, "%2d:%.2d.%d", min, sec, tenths);
 103         } else {
 104                 return snprintf(s, n, "%2d.%d", sec, tenths);
 105         }
 106 }
 107
 108 int
 109 snprintscore_line(char *s, size_t n, int score)
 110 {
 111         int r = snprintf(s, n, "Time: ");
 112         return r + snprintscore(s+r, n-r, score);
 113 }
 114
 115 void
 116 display_scores(SDL_Surface *s, uint32_t x, uint32_t y)
 117 {
 118         char t[1024];
 119         int i,h = SFont_TextHeight(g_font);
 120
 121         SFont_Write(s,g_font,x+30,y,"High scores");
 122         y += h;
 123         for(i = 0; i<N_SCORES; i++) {
 124                 y += h;
 125                 snprintf(t, 1024, "#%1d",i+1);
 126                 SFont_Write(s, g_font, x, y, t);
 127                 snprintscore(t, 1024, g_scores[i].score);
 128                 SFont_Write(s, g_font, x+50, y, t);
 129                 snprintf(t, 1024, "%s", g_scores[i].name);
 130                 SFont_Write(s, g_font, x+180, y, t);
 131         }
 132 }
 133
 134 int
 135 process_score_input(void)
 136 {
 137         char *name;
 138         int c,k,n;
 139         SDL_Event e;
 140
 141         name = g_scores[cur_score].name;
 142         n = strlen(name);
 143
 144         while(SDL_PollEvent(&e) && e.type == SDL_KEYDOWN) {
 145                 c = e.key.keysym.unicode;
 146                 k = e.key.keysym.sym;
 147                 if(k == SDLK_BACKSPACE && n > 0) name[n--]=0;
 148                 else if(e.key.keysym.sym == SDLK_RETURN) {
 149                         SDL_EnableUNICODE(0);
 150                         return false;
 151                 }
 152                 else name[n++] = c;
 153         }
 154         return true;
 155 }