score.c

   1 /* Variations on RockDodger
   2  * Copyright (C) 2004 Joshua Grams <josh@qualdan.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the
   6  * Free Software Foundation; either version 2 of the License, or (at your
   7  * option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  17  */
  18
  19 #include <SDL.h>
  20 #include <SDL_keysym.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include "SFont.h"
  26
  27 #include "common.h"
  28 #include "config.h"
  29 #include "file.h"
  30 #include "globals.h"
  31 #include "score.h"
  32
  33 // High score table
  34 struct highscore g_scores[2][N_SCORES] = {
  35         {
  36                 {1*60*1000,"-"},
  37                 {45*1000,"-"},
  38                 {30*1000,"-"},
  39                 {20*1000,"-"},
  40                 {10*1000,"-"},
  41                 {7*1000,"-"},
  42                 {5*1000,"-"},
  43                 {3*1000,"-"}
  44         },
  45         {
  46                 {1*60*1000,"-"},
  47                 {45*1000,"-"},
  48                 {30*1000,"-"},
  49                 {20*1000,"-"},
  50                 {10*1000,"-"},
  51                 {7*1000,"-"},
  52                 {5*1000,"-"},
  53                 {3*1000,"-"}
  54         }
  55 };
  56
  57 static char *titles[2] = { "Normal\n", "Easy\n" };
  58
  59 extern SFont_Font *g_font;
  60
  61 int g_easy = 0;
  62 int cur_score = -1; // which score we're currently entering.
  63
  64 void
  65 read_high_score_table()
  66 {
  67         FILE *f;
  68         int i, j;
  69
  70         f = open_score_file("r");
  71         if(f) {
  72                 // If the file exists, read from it
  73                 for(j=0; j<2; j++) {
  74                         fscanf(f, titles[j]);
  75                         for(i = 0; i<N_SCORES; i++) {
  76                                 fscanf(f, "%d %31[^\n]\n", &g_scores[j][i].score, g_scores[j][i].name);
  77                         }
  78                 }
  79                 fclose(f);
  80         }
  81 }
  82
  83 void
  84 write_high_score_table()
  85 {
  86         FILE *f;
  87         int i, j;
  88
  89         f = open_score_file("w");
  90         if(f) {
  91                 // If the file exists, write to it
  92                 for(j=0; j<2; j++) {
  93                         fprintf(f, titles[j]);
  94                         for(i = 0; i<N_SCORES; i++) {
  95                                 fprintf (f, "%d %.31s\n", g_scores[j][i].score, g_scores[j][i].name);
  96                         }
  97                 }
  98                 fclose(f);
  99         }
 100 }
 101
 102 int
 103 score_rank(int score)
 104 {
 105         int i;
 106
 107         for(i=0; i<N_SCORES; i++) {
 108                 if(score > g_scores[g_easy][i].score) return i;
 109         }
 110         return -1;
 111 }
 112
 113 int
 114 new_high_score(int score)
 115 {
 116         cur_score = -1;  // assume not a new high score
 117         if(score <= g_scores[g_easy][LOW_SCORE].score) return false;
 118         read_high_score_table();
 119         cur_score = score_rank(score);
 120         return cur_score >= 0;
 121 }
 122
 123 int
 124 insert_score(int score)
 125 {
 126         int i;
 127
 128         // Move all lower scores down a notch, losing lowest score forever.
 129         if(strcmp(g_scores[g_easy][cur_score].name, "-") != 0)
 130                 for(i=LOW_SCORE; i>cur_score; i--)
 131                         g_scores[g_easy][i] = g_scores[g_easy][i-1];
 132
 133         // initialize new score entry.
 134         g_scores[g_easy][cur_score].score = score;
 135         for(i=0; i<32; i++) g_scores[g_easy][cur_score].name[i] = 0;
 136         return true;
 137 }
 138
 139 int
 140 snprintscore(char *s, size_t n, int score)
 141 {
 142         int min = score/60000;
 143         int sec = score/1000%60;
 144         int tenths = score%1000/100;
 145         if(min) {
 146                 return snprintf(s, n, "%2d:%.2d.%d", min, sec, tenths);
 147         } else {
 148                 return snprintf(s, n, "%2d.%d", sec, tenths);
 149         }
 150 }
 151
 152 void
 153 show_score(void)
 154 {
 155         char s[16];
 156         int r = snprintf(s, 16, "Time: ");
 157         snprintscore(s+r, 16-r, score);
 158         SFont_Write(surf_screen, g_font, XSIZE-250, 0, s);
 159 }
 160
 161 void
 162 display_scores(SDL_Surface *s, uint32_t x, uint32_t y)
 163 {
 164         char t[1024];
 165         int i,h = SFont_TextHeight(g_font);
 166
 167         SFont_Write(s,g_font,x+30,y,"High scores");
 168         y += h;
 169         if(g_easy) SFont_Write(s,g_font,x+75,y,"(easy)");
 170         else SFont_Write(s,g_font,x+60,y,"(normal)");
 171         for(i = 0; i<N_SCORES; i++) {
 172                 y += h;
 173                 snprintf(t, 1024, "#%1d",i+1);
 174                 SFont_Write(s, g_font, x, y, t);
 175                 snprintscore(t, 1024, g_scores[g_easy][i].score);
 176                 SFont_Write(s, g_font, x+50, y, t);
 177                 if(i == cur_score) snprintf(t, 1024, "%s_", g_scores[g_easy][i].name);
 178                 else snprintf(t, 1024, "%s", g_scores[g_easy][i].name);
 179                 SFont_Write(s, g_font, x+180, y, t);
 180         }
 181 }
 182
 183 int
 184 process_score_input(void)
 185 {
 186         char *name;
 187         int c,k,n;
 188         SDL_Event e;
 189
 190         name = g_scores[g_easy][cur_score].name;
 191         n = strlen(name);
 192
 193         while(SDL_PollEvent(&e) && e.type == SDL_KEYDOWN) {
 194                 c = e.key.keysym.unicode;
 195                 k = e.key.keysym.sym;
 196                 if(k == SDLK_BACKSPACE) {
 197                         if(n > 0) name[--n]=0;
 198                 } else {
 199                         if(k == SDLK_RETURN) {
 200                                 SDL_EnableUNICODE(0);
 201                                 cur_score = -1;
 202                                 return false;
 203                         } else name[n++] = c;
 204                 }
 205         }
 206         return true;
 207 }