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1419 | jermar | 1 | /* $OpenBSD: tetris.c,v 1.21 2006/04/20 03:24:12 ray Exp $ */ |
2 | /* $NetBSD: tetris.c,v 1.2 1995/04/22 07:42:47 cgd Exp $ */ |
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3 | |||
4 | /*- |
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5 | * Copyright (c) 1992, 1993 |
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6 | * The Regents of the University of California. All rights reserved. |
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7 | * |
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8 | * This code is derived from software contributed to Berkeley by |
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9 | * Chris Torek and Darren F. Provine. |
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10 | * |
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11 | * Redistribution and use in source and binary forms, with or without |
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12 | * modification, are permitted provided that the following conditions |
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13 | * are met: |
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14 | * 1. Redistributions of source code must retain the above copyright |
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15 | * notice, this list of conditions and the following disclaimer. |
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16 | * 2. Redistributions in binary form must reproduce the above copyright |
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17 | * notice, this list of conditions and the following disclaimer in the |
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18 | * documentation and/or other materials provided with the distribution. |
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19 | * 3. Neither the name of the University nor the names of its contributors |
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20 | * may be used to endorse or promote products derived from this software |
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21 | * without specific prior written permission. |
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22 | * |
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23 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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33 | * SUCH DAMAGE. |
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34 | * |
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35 | * @(#)tetris.c 8.1 (Berkeley) 5/31/93 |
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36 | */ |
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37 | |||
1653 | cejka | 38 | /** @addtogroup tetris Tetris |
39 | * @brief Tetris ported from OpenBSD |
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40 | * @{ |
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41 | */ |
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42 | /** @file |
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43 | */ |
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44 | |||
1419 | jermar | 45 | #ifndef lint |
46 | static const char copyright[] = |
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47 | "@(#) Copyright (c) 1992, 1993\n\ |
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48 | The Regents of the University of California. All rights reserved.\n"; |
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49 | #endif /* not lint */ |
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50 | |||
51 | /* |
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52 | * Tetris (or however it is spelled). |
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53 | */ |
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54 | |||
55 | #include <sys/time.h> |
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56 | #include <sys/types.h> |
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57 | |||
58 | #include <err.h> |
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59 | #include <stdio.h> |
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60 | #include <stdlib.h> |
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61 | #include <string.h> |
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62 | #include <unistd.h> |
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63 | |||
64 | #include "input.h" |
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65 | #include "scores.h" |
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66 | #include "screen.h" |
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67 | #include "tetris.h" |
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68 | |||
69 | cell board[B_SIZE]; |
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70 | int Rows, Cols; |
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71 | const struct shape *curshape; |
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72 | const struct shape *nextshape; |
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73 | long fallrate; |
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74 | int score; |
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1449 | palkovsky | 75 | //gid_t gid, egid; |
1419 | jermar | 76 | char key_msg[100]; |
77 | int showpreview, classic; |
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78 | |||
79 | static void elide(void); |
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80 | static void setup_board(void); |
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81 | const struct shape *randshape(void); |
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82 | void onintr(int); |
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83 | void usage(void); |
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84 | |||
85 | /* |
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86 | * Set up the initial board. The bottom display row is completely set, |
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87 | * along with another (hidden) row underneath that. Also, the left and |
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88 | * right edges are set. |
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89 | */ |
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90 | static void |
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91 | setup_board(void) |
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92 | { |
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93 | int i; |
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94 | cell *p; |
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95 | |||
96 | p = board; |
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97 | for (i = B_SIZE; i; i--) |
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98 | *p++ = i <= (2 * B_COLS) || (i % B_COLS) < 2; |
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99 | } |
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100 | |||
101 | /* |
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102 | * Elide any full active rows. |
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103 | */ |
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104 | static void |
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105 | elide(void) |
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106 | { |
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107 | int rows = 0; |
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108 | int i, j, base; |
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109 | cell *p; |
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110 | |||
111 | for (i = A_FIRST; i < A_LAST; i++) { |
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112 | base = i * B_COLS + 1; |
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113 | p = &board[base]; |
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114 | for (j = B_COLS - 2; *p++ != 0;) { |
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115 | if (--j <= 0) { |
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116 | /* this row is to be elided */ |
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117 | rows++; |
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118 | memset(&board[base], 0, B_COLS - 2); |
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119 | scr_update(); |
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120 | tsleep(); |
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121 | while (--base != 0) |
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122 | board[base + B_COLS] = board[base]; |
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123 | scr_update(); |
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124 | tsleep(); |
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125 | break; |
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126 | } |
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127 | } |
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128 | } |
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129 | switch (rows) { |
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130 | case 1: |
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131 | score += 10; |
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132 | break; |
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133 | case 2: |
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134 | score += 30; |
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135 | break; |
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136 | case 3: |
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137 | score += 70; |
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138 | break; |
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139 | case 4: |
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140 | score += 150; |
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141 | break; |
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142 | default: |
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143 | break; |
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144 | } |
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145 | } |
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146 | |||
147 | const struct shape * |
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148 | randshape(void) |
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149 | { |
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150 | const struct shape *tmp; |
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151 | int i, j; |
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152 | |||
153 | tmp = &shapes[random() % 7]; |
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154 | j = random() % 4; |
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155 | for (i = 0; i < j; i++) |
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156 | tmp = &shapes[classic? tmp->rotc : tmp->rot]; |
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157 | return (tmp); |
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158 | } |
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159 | |||
1472 | palkovsky | 160 | static void srandomdev(void) |
161 | { |
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162 | struct timeval tv; |
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163 | |||
164 | gettimeofday(&tv, NULL); |
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165 | srandom(tv.tv_sec + tv.tv_usec / 100000); |
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166 | } |
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167 | |||
1590 | cejka | 168 | static void tetris_menu_draw(int level) |
169 | { |
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170 | clear_screen(); |
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171 | moveto(5,10); |
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172 | puts("Tetris\n\n"); |
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173 | |||
174 | moveto(8,10); |
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175 | printf("Level = %d (press keys 1 - 9 to change)",level); |
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176 | moveto(9,10); |
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177 | printf("Preview is %s (press 'p' to change)", (showpreview?"on ":"off")); |
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178 | moveto(12,10); |
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179 | printf("Press 'h' to show hiscore table."); |
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180 | moveto(13,10); |
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181 | printf("Press 's' to start game."); |
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182 | moveto(14,10); |
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183 | printf("Press 'q' to quit game."); |
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184 | moveto(20,10); |
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185 | printf("In game controls:"); |
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186 | moveto(21,0); |
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187 | puts(key_msg); |
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188 | } |
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189 | |||
190 | static int tetris_menu(int *level) |
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191 | { |
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192 | static int firstgame = 1; |
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193 | int i; |
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194 | /* if (showpreview == 0) |
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195 | (void)printf("Your score: %d point%s x level %d = %d\n", |
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196 | score, score == 1 ? "" : "s", level, score * level); |
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197 | else { |
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198 | (void)printf("Your score: %d point%s x level %d x preview penalty %0.3f = %d\n", |
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199 | score, score == 1 ? "" : "s", level, (double)PRE_PENALTY, |
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200 | (int)(score * level * PRE_PENALTY)); |
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201 | score = score * PRE_PENALTY; |
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202 | } |
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203 | savescore(level); |
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204 | |||
205 | showscores(level); |
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206 | |||
207 | printf("\nHit 's' to new game, 'q' to quit.\n"); |
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208 | */ |
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209 | tetris_menu_draw(*level); |
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210 | while (1) { |
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211 | |||
212 | i = getchar(); |
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213 | |||
214 | switch(i) { |
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215 | case 'p': |
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216 | showpreview = !showpreview; |
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217 | moveto(9,21); |
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218 | if (showpreview) |
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219 | printf("on "); |
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220 | else |
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221 | printf("off"); |
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222 | |||
223 | break; |
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224 | case 'h': |
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225 | showscores(firstgame); |
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226 | tetris_menu_draw(*level); |
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227 | break; |
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228 | case 's': |
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229 | firstgame = 0; |
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230 | return 1; |
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231 | case 'q': |
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232 | return 0; |
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233 | case '1': |
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234 | case '2': |
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235 | case '3': |
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236 | case '4': |
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237 | case '5': |
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238 | case '6': |
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239 | case '7': |
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240 | case '8': |
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241 | case '9': |
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242 | *level = i - '0'; |
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243 | moveto(8,18); |
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244 | printf("%d", *level); |
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245 | break; |
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246 | } |
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247 | } |
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248 | |||
249 | } |
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250 | |||
1419 | jermar | 251 | int |
252 | main(int argc, char *argv[]) |
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253 | { |
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254 | int pos, c; |
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255 | char *keys; |
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256 | int level = 2; |
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257 | char key_write[6][10]; |
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1721 | palkovsky | 258 | int i, j; |
1419 | jermar | 259 | |
260 | keys = "jkl pq"; |
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261 | |||
1449 | palkovsky | 262 | // gid = getgid(); |
263 | // egid = getegid(); |
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264 | // setegid(gid); |
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1419 | jermar | 265 | |
1590 | cejka | 266 | classic = 0; |
267 | showpreview = 1; |
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1419 | jermar | 268 | |
1449 | palkovsky | 269 | /* while ((ch = getopt(argc, argv, "ck:l:ps")) != -1) */ |
270 | /* switch(ch) { */ |
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271 | /* case 'c': */ |
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272 | /* /\* */ |
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273 | /* * this means: */ |
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274 | /* * - rotate the other way; */ |
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275 | /* * - no reverse video. */ |
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276 | /* *\/ */ |
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277 | /* classic = 1; */ |
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278 | /* break; */ |
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279 | /* case 'k': */ |
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280 | /* if (strlen(keys = optarg) != 6) */ |
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281 | /* usage(); */ |
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282 | /* break; */ |
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283 | /* case 'l': */ |
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284 | /* level = (int)strtonum(optarg, MINLEVEL, MAXLEVEL, */ |
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285 | /* &errstr); */ |
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286 | /* if (errstr) */ |
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287 | /* errx(1, "level must be from %d to %d", */ |
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288 | /* MINLEVEL, MAXLEVEL); */ |
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289 | /* break; */ |
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290 | /* case 'p': */ |
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291 | /* showpreview = 1; */ |
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292 | /* break; */ |
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293 | /* case 's': */ |
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294 | /* showscores(0); */ |
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295 | /* exit(0); */ |
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296 | /* default: */ |
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297 | /* usage(); */ |
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298 | /* } */ |
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1419 | jermar | 299 | |
1449 | palkovsky | 300 | /* argc -= optind; */ |
301 | /* argv += optind; */ |
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1419 | jermar | 302 | |
1449 | palkovsky | 303 | /* if (argc) */ |
304 | /* usage(); */ |
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305 | |||
1688 | jermar | 306 | |
1419 | jermar | 307 | |
308 | for (i = 0; i <= 5; i++) { |
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309 | for (j = i+1; j <= 5; j++) { |
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310 | if (keys[i] == keys[j]) |
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311 | errx(1, "duplicate command keys specified."); |
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312 | } |
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313 | if (keys[i] == ' ') |
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1472 | palkovsky | 314 | strncpy(key_write[i], "<space>", sizeof key_write[i]); |
1419 | jermar | 315 | else { |
316 | key_write[i][0] = keys[i]; |
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317 | key_write[i][1] = '\0'; |
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318 | } |
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319 | } |
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320 | |||
321 | snprintf(key_msg, sizeof key_msg, |
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322 | "%s - left %s - rotate %s - right %s - drop %s - pause %s - quit", |
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323 | key_write[0], key_write[1], key_write[2], key_write[3], |
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324 | key_write[4], key_write[5]); |
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1590 | cejka | 325 | |
1419 | jermar | 326 | scr_init(); |
1590 | cejka | 327 | initscores(); |
328 | while (tetris_menu(&level)) { |
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1688 | jermar | 329 | fallrate = 1000000 / level; |
330 | |||
1590 | cejka | 331 | scr_clear(); |
332 | setup_board(); |
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333 | |||
334 | srandomdev(); |
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335 | scr_set(); |
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336 | |||
337 | pos = A_FIRST*B_COLS + (B_COLS/2)-1; |
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338 | nextshape = randshape(); |
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339 | curshape = randshape(); |
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340 | |||
341 | scr_msg(key_msg, 1); |
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342 | |||
343 | for (;;) { |
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344 | place(curshape, pos, 1); |
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345 | scr_update(); |
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346 | place(curshape, pos, 0); |
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347 | c = tgetchar(); |
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348 | if (c < 0) { |
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349 | /* |
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350 | * Timeout. Move down if possible. |
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351 | */ |
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352 | if (fits_in(curshape, pos + B_COLS)) { |
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353 | pos += B_COLS; |
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354 | continue; |
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355 | } |
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356 | |||
357 | /* |
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358 | * Put up the current shape `permanently', |
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359 | * bump score, and elide any full rows. |
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360 | */ |
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361 | place(curshape, pos, 1); |
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362 | score++; |
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363 | elide(); |
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364 | |||
365 | /* |
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366 | * Choose a new shape. If it does not fit, |
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367 | * the game is over. |
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368 | */ |
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369 | curshape = nextshape; |
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370 | nextshape = randshape(); |
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371 | pos = A_FIRST*B_COLS + (B_COLS/2)-1; |
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372 | if (!fits_in(curshape, pos)) |
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373 | break; |
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1419 | jermar | 374 | continue; |
375 | } |
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1590 | cejka | 376 | |
1419 | jermar | 377 | /* |
1590 | cejka | 378 | * Handle command keys. |
1419 | jermar | 379 | */ |
1590 | cejka | 380 | if (c == keys[5]) { |
381 | /* quit */ |
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1419 | jermar | 382 | break; |
383 | } |
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1590 | cejka | 384 | if (c == keys[4]) { |
385 | static char msg[] = |
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386 | "paused - press RETURN to continue"; |
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1584 | cejka | 387 | |
1590 | cejka | 388 | place(curshape, pos, 1); |
389 | do { |
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390 | scr_update(); |
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391 | scr_msg(key_msg, 0); |
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392 | scr_msg(msg, 1); |
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393 | // (void) fflush(stdout); |
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394 | } while (rwait((struct timeval *)NULL) == -1); |
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395 | scr_msg(msg, 0); |
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396 | scr_msg(key_msg, 1); |
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397 | place(curshape, pos, 0); |
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398 | continue; |
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399 | } |
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400 | if (c == keys[0]) { |
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401 | /* move left */ |
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402 | if (fits_in(curshape, pos - 1)) |
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403 | pos--; |
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404 | continue; |
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405 | } |
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406 | if (c == keys[1]) { |
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407 | /* turn */ |
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408 | const struct shape *new = &shapes[ |
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409 | classic? curshape->rotc : curshape->rot]; |
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1584 | cejka | 410 | |
1590 | cejka | 411 | if (fits_in(new, pos)) |
412 | curshape = new; |
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413 | continue; |
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414 | } |
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415 | if (c == keys[2]) { |
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416 | /* move right */ |
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417 | if (fits_in(curshape, pos + 1)) |
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418 | pos++; |
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419 | continue; |
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420 | } |
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421 | if (c == keys[3]) { |
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422 | /* move to bottom */ |
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423 | while (fits_in(curshape, pos + B_COLS)) { |
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424 | pos += B_COLS; |
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425 | score++; |
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426 | } |
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427 | continue; |
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428 | } |
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429 | if (c == '\f') { |
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430 | scr_clear(); |
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431 | scr_msg(key_msg, 1); |
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432 | } |
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433 | } |
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434 | |||
435 | scr_clear(); |
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436 | insertscore(score, level); |
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1710 | vana | 437 | score=0; |
1584 | cejka | 438 | } |
439 | |||
440 | scr_clear(); |
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441 | printf("\n\n\n\t\tGame over.\n"); |
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442 | /* |
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1419 | jermar | 443 | while ((i = getchar()) != '\n') |
444 | if (i == EOF) |
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1584 | cejka | 445 | break |
446 | */ |
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1590 | cejka | 447 | scr_end(); |
1721 | palkovsky | 448 | |
449 | return 0; |
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1419 | jermar | 450 | } |
451 | |||
1449 | palkovsky | 452 | /* void */ |
453 | /* onintr(int signo) */ |
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454 | /* { */ |
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455 | /* scr_clear(); /\* XXX signal race *\/ */ |
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456 | /* scr_end(); /\* XXX signal race *\/ */ |
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457 | /* _exit(0); */ |
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458 | /* } */ |
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1419 | jermar | 459 | |
460 | void |
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461 | usage(void) |
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462 | { |
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463 | (void)fprintf(stderr, "usage: tetris [-ps] [-k keys] [-l level]\n"); |
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464 | exit(1); |
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465 | } |
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1653 | cejka | 466 | |
467 | /** @} |
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468 | */ |
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469 |