1 | /* |
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2 | * demo demo using libee |
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3 | * Copyright (c) 2003 Sam Hocevar <sam@zoy.org> |
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4 | * All Rights Reserved |
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5 | * |
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6 | * $Id: demo.c 108 2003-11-09 23:01:29Z sam $ |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or modify |
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9 | * it under the terms of the GNU General Public License as published by |
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10 | * the Free Software Foundation; either version 2 of the License, or |
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11 | * (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 | */ |
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22 | |
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23 | #include "config.h" |
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24 | |
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25 | #include <math.h> |
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26 | #include <string.h> |
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27 | |
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28 | #include "ee.h" |
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29 | |
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30 | static void display_menu(void); |
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31 | |
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32 | static void demo_dots(void); |
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33 | static void demo_lines(void); |
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34 | static void demo_thin_lines(void); |
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35 | static void demo_circles(void); |
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36 | static void demo_triangles(void); |
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37 | |
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38 | int clipping = 0; |
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39 | |
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40 | int main(int argc, char **argv) |
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41 | { |
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42 | void (*demo)(void) = NULL; |
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43 | int quit = 0; |
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44 | |
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45 | if(ee_init()) |
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46 | { |
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47 | return 1; |
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48 | } |
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49 | |
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50 | display_menu(); |
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51 | |
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52 | /* Go ! */ |
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53 | while(!quit) |
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54 | { |
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55 | char key = ee_get_key(); |
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56 | if(key && demo) |
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57 | { |
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58 | display_menu(); |
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59 | demo = NULL; |
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60 | } |
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61 | else if(key) |
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62 | { |
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63 | switch(key) |
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64 | { |
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65 | case 'q': |
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66 | demo = NULL; |
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67 | quit = 1; |
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68 | break; |
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69 | case '1': |
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70 | ee_clear(); |
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71 | demo = demo_dots; |
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72 | break; |
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73 | case '2': |
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74 | ee_clear(); |
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75 | demo = demo_lines; |
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76 | break; |
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77 | case '3': |
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78 | ee_clear(); |
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79 | demo = demo_thin_lines; |
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80 | break; |
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81 | case '4': |
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82 | ee_clear(); |
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83 | demo = demo_circles; |
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84 | break; |
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85 | case '5': |
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86 | ee_clear(); |
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87 | demo = demo_triangles; |
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88 | break; |
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89 | } |
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90 | } |
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91 | |
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92 | if(demo) |
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93 | demo(); |
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94 | } |
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95 | |
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96 | /* Clean up */ |
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97 | ee_end(); |
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98 | |
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99 | return 0; |
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100 | } |
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101 | |
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102 | static void display_menu(void) |
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103 | { |
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104 | int xo = ee_get_width() - 2; |
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105 | int yo = ee_get_height() - 2; |
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106 | |
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107 | ee_clear(); |
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108 | ee_color(EE_WHITE); |
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109 | ee_draw_line(xo, yo, 1, yo, '.'); |
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110 | ee_draw_line(1, yo, 1, 1, ':'); |
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111 | ee_draw_line(xo, 1, xo, yo, ':'); |
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112 | ee_draw_line(1, 1, xo, 1, '.'); |
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113 | |
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114 | ee_goto((xo - strlen("libee demo")) / 2, 3); |
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115 | ee_putstr("libee demo"); |
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116 | ee_goto((xo - strlen("============")) / 2, 4); |
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117 | ee_putstr("============"); |
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118 | |
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119 | ee_goto(4, 6); |
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120 | ee_putstr("1: dots demo"); |
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121 | ee_goto(4, 7); |
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122 | ee_putstr("2: lines demo"); |
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123 | ee_goto(4, 8); |
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124 | ee_putstr("3: thin lines demo"); |
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125 | ee_goto(4, 9); |
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126 | ee_putstr("4: circles demo"); |
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127 | ee_goto(4, 10); |
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128 | ee_putstr("5: triangles demo"); |
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129 | |
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130 | ee_goto(4, yo - 2); |
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131 | ee_putstr("q: quit"); |
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132 | |
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133 | ee_refresh(); |
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134 | } |
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135 | |
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136 | static void demo_dots(void) |
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137 | { |
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138 | int xmax = ee_get_width() - 1; |
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139 | int ymax = ee_get_height() - 1; |
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140 | int i; |
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141 | |
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142 | for(i = 1000; i--;) |
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143 | { |
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144 | /* Putpixel */ |
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145 | ee_color(ee_rand(1, 10)); |
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146 | ee_goto(ee_rand(0, xmax), ee_rand(0, ymax)); |
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147 | ee_putchar('#'); |
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148 | } |
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149 | ee_refresh(); |
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150 | } |
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151 | |
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152 | static void demo_lines(void) |
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153 | { |
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154 | int w = ee_get_width(); |
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155 | int h = ee_get_height(); |
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156 | |
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157 | /* Draw lines */ |
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158 | ee_color(ee_rand(1, 10)); |
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159 | if(clipping) |
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160 | { |
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161 | ee_draw_line(ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), |
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162 | ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), '#'); |
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163 | } |
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164 | else |
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165 | { |
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166 | ee_draw_line(ee_rand(0, w - 1), ee_rand(0, h - 1), |
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167 | ee_rand(0, w - 1), ee_rand(0, h - 1), '#'); |
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168 | } |
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169 | ee_refresh(); |
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170 | } |
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171 | |
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172 | static void demo_thin_lines(void) |
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173 | { |
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174 | int w = ee_get_width(); |
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175 | int h = ee_get_height(); |
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176 | |
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177 | /* Draw lines */ |
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178 | ee_color(ee_rand(1, 10)); |
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179 | if(clipping) |
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180 | { |
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181 | ee_draw_thin_line(ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), |
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182 | ee_rand(- w, 2 * w), ee_rand(- h, 2 * h)); |
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183 | } |
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184 | else |
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185 | { |
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186 | ee_draw_thin_line(ee_rand(0, w), ee_rand(0, h), |
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187 | ee_rand(0, w), ee_rand(0, h)); |
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188 | } |
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189 | ee_refresh(); |
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190 | } |
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191 | |
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192 | static void demo_circles(void) |
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193 | { |
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194 | int w = ee_get_width(); |
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195 | int h = ee_get_height(); |
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196 | |
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197 | /* Draw circles */ |
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198 | if(clipping) |
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199 | { |
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200 | ee_color(ee_rand(1, 10)); |
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201 | ee_draw_circle(ee_rand(- w, 2 * w), |
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202 | ee_rand(- h, 2 * h), |
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203 | ee_rand(0, (w + h) / 2), |
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204 | '#'); |
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205 | } |
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206 | else |
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207 | { |
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208 | int x = ee_rand(0, w); |
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209 | int y = ee_rand(0, h); |
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210 | int r = ee_rand(0, (w + h) / 2); |
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211 | |
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212 | if(x - r < 0 || x + r >= w || y - r < 0 || y + r >= h) |
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213 | { |
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214 | demo_circles(); |
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215 | return; |
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216 | } |
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217 | |
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218 | ee_color(ee_rand(1, 10)); |
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219 | ee_draw_circle(x, y, r, '#'); |
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220 | } |
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221 | |
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222 | ee_refresh(); |
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223 | } |
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224 | |
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225 | static void demo_triangles(void) |
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226 | { |
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227 | int w = ee_get_width(); |
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228 | int h = ee_get_height(); |
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229 | |
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230 | /* Draw lines */ |
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231 | ee_color(ee_rand(1, 10)); |
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232 | if(clipping) |
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233 | { |
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234 | ee_fill_triangle(ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), |
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235 | ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), |
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236 | ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), '#'); |
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237 | } |
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238 | else |
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239 | { |
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240 | ee_fill_triangle(ee_rand(0, w - 1), ee_rand(0, h - 1), |
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241 | ee_rand(0, w - 1), ee_rand(0, h - 1), |
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242 | ee_rand(0, w - 1), ee_rand(0, h - 1), '#'); |
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243 | } |
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244 | ee_refresh(); |
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245 | } |
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246 | |
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247 | static void demo_pyramid(void) |
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248 | { |
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249 | static int i = 0; |
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250 | |
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251 | int xo, yo, x1, y1, x2, y2, x3, y3; |
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252 | |
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253 | i++; |
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254 | |
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255 | xo = ee_get_width() * 5 / 8; |
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256 | yo = 2; |
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257 | |
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258 | x1 = ee_get_width() / 8 + sin(0.03*i) * 5; |
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259 | y1 = ee_get_height() / 2 + cos(0.03*i) * 5; |
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260 | |
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261 | x2 = ee_get_width() - 10 - cos(0.02*i) * 10; |
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262 | y2 = ee_get_height() - 5 + sin(0.02*i) * 5; |
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263 | |
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264 | x3 = ee_get_width() / 4 - sin(0.02*i) * 5; |
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265 | y3 = ee_get_height() + cos(0.02*i) * 5; |
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266 | |
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267 | ee_clear(); |
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268 | |
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269 | ee_color(EE_GREEN); |
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270 | ee_fill_triangle(xo, yo, x2, y2, x1, y1, '%'); |
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271 | ee_color(EE_YELLOW); |
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272 | ee_draw_thin_line(xo, yo, x2, y2); |
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273 | ee_draw_thin_line(x2, y2, x1, y1); |
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274 | ee_draw_thin_line(x1, y1, xo, yo); |
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275 | |
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276 | ee_color(EE_RED); |
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277 | ee_fill_triangle(x1, y1, x2, y2, x3, y3, '#'); |
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278 | ee_color(EE_YELLOW); |
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279 | ee_draw_thin_line(x1, y1, x2, y2); |
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280 | ee_draw_thin_line(x2, y2, x3, y3); |
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281 | ee_draw_thin_line(x3, y3, x1, y1); |
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282 | |
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283 | ee_color(EE_BLUE); |
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284 | ee_fill_triangle(xo, yo, x2, y2, x3, y3, '%'); |
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285 | ee_color(EE_YELLOW); |
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286 | ee_draw_thin_line(xo, yo, x2, y2); |
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287 | ee_draw_thin_line(x2, y2, x3, y3); |
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288 | ee_draw_thin_line(x3, y3, xo, yo); |
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289 | |
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290 | ee_refresh(); |
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291 | } |
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292 | |
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