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 147 2003-11-10 23:38:50Z 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_all(void); |
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33 | |
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34 | static void demo_dots(void); |
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35 | static void demo_lines(void); |
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36 | static void demo_thin_lines(void); |
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37 | static void demo_circles(void); |
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38 | static void demo_ellipses(void); |
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39 | static void demo_triangles(void); |
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40 | static void demo_outlined_triangles(void); |
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41 | static void demo_sprites(void); |
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42 | |
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43 | int force_clipping = 0; |
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44 | struct ee_sprite *sprite = NULL; |
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45 | |
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46 | int main(int argc, char **argv) |
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47 | { |
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48 | void (*demo)(void) = NULL; |
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49 | int quit = 0; |
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50 | |
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51 | if(ee_init()) |
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52 | { |
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53 | return 1; |
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54 | } |
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55 | |
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56 | /* Initialize data */ |
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57 | sprite = ee_load_sprite("data/bar_boss"); |
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58 | |
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59 | /* Main menu */ |
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60 | display_menu(); |
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61 | |
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62 | /* Go ! */ |
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63 | while(!quit) |
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64 | { |
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65 | char key = ee_get_key(); |
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66 | if(key && demo) |
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67 | { |
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68 | display_menu(); |
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69 | demo = NULL; |
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70 | } |
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71 | else if(key) |
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72 | { |
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73 | switch(key) |
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74 | { |
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75 | case 'q': |
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76 | demo = NULL; |
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77 | quit = 1; |
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78 | break; |
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79 | case '0': |
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80 | ee_clear(); |
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81 | demo = demo_all; |
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82 | break; |
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83 | case '1': |
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84 | ee_clear(); |
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85 | demo = demo_dots; |
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86 | break; |
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87 | case '2': |
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88 | ee_clear(); |
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89 | demo = demo_lines; |
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90 | break; |
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91 | case '3': |
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92 | ee_clear(); |
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93 | demo = demo_thin_lines; |
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94 | break; |
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95 | case '4': |
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96 | ee_clear(); |
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97 | demo = demo_circles; |
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98 | break; |
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99 | case '5': |
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100 | ee_clear(); |
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101 | demo = demo_ellipses; |
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102 | break; |
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103 | case '6': |
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104 | ee_clear(); |
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105 | demo = demo_triangles; |
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106 | break; |
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107 | case '7': |
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108 | ee_clear(); |
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109 | demo = demo_outlined_triangles; |
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110 | break; |
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111 | case '8': |
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112 | ee_clear(); |
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113 | demo = demo_sprites; |
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114 | break; |
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115 | } |
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116 | } |
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117 | |
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118 | if(demo) |
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119 | demo(); |
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120 | } |
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121 | |
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122 | /* Clean up */ |
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123 | ee_free_sprite(sprite); |
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124 | ee_end(); |
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125 | |
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126 | return 0; |
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127 | } |
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128 | |
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129 | static void display_menu(void) |
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130 | { |
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131 | int xo = ee_get_width() - 2; |
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132 | int yo = ee_get_height() - 2; |
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133 | |
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134 | ee_clear(); |
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135 | ee_color(EE_WHITE); |
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136 | ee_draw_line(xo, yo, 1, yo, '.'); |
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137 | ee_draw_line(1, yo, 1, 1, ':'); |
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138 | ee_draw_line(xo, 1, xo, yo, ':'); |
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139 | ee_draw_line(1, 1, xo, 1, '.'); |
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140 | |
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141 | ee_putstr((xo - strlen("libee demo")) / 2, 3, "libee demo"); |
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142 | ee_putstr((xo - strlen("============")) / 2, 4, "============"); |
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143 | |
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144 | ee_putstr(4, 6, "0: complete demo"); |
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145 | ee_putstr(4, 7, "1: dots demo"); |
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146 | ee_putstr(4, 8, "2: lines demo"); |
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147 | ee_putstr(4, 9, "3: thin lines demo"); |
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148 | ee_putstr(4, 10, "4: circles demo"); |
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149 | ee_putstr(4, 11, "5: ellipses demo"); |
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150 | ee_putstr(4, 12, "6: triangles demo"); |
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151 | ee_putstr(4, 13, "7: outlined triangles demo"); |
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152 | ee_putstr(4, 14, "8: sprites demo"); |
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153 | |
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154 | ee_putstr(4, yo - 2, "q: quit"); |
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155 | |
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156 | ee_refresh(); |
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157 | } |
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158 | |
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159 | static void demo_all(void) |
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160 | { |
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161 | static int i = 0; |
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162 | |
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163 | int j, xo, yo, x1, y1, x2, y2, x3, y3; |
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164 | |
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165 | i++; |
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166 | |
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167 | ee_clear(); |
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168 | |
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169 | /* Draw the sun */ |
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170 | ee_color(EE_YELLOW); |
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171 | xo = ee_get_width() / 4; |
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172 | yo = ee_get_height() / 4 + 5 * sin(0.03*i); |
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173 | |
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174 | for(j = 0; j < 16; j++) |
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175 | { |
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176 | x1 = xo - (30 + sin(0.03*i) * 8) * sin(0.03*i + M_PI*j/8); |
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177 | y1 = yo + (15 + sin(0.03*i) * 4) * cos(0.03*i + M_PI*j/8); |
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178 | ee_draw_thin_line(xo, yo, x1, y1); |
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179 | } |
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180 | |
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181 | ee_color(EE_WHITE); |
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182 | for(j = 15 + sin(0.03*i) * 8; j--;) |
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183 | { |
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184 | ee_draw_circle(xo, yo, j, '#'); |
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185 | } |
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186 | |
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187 | ee_color(EE_YELLOW); |
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188 | ee_draw_circle(xo, yo, 15 + sin(0.03*i) * 8, '#'); |
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189 | |
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190 | /* Draw the pyramid */ |
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191 | xo = ee_get_width() * 5 / 8; |
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192 | yo = 2; |
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193 | |
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194 | x1 = ee_get_width() / 8 + sin(0.03*i) * 5; |
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195 | y1 = ee_get_height() / 2 + cos(0.03*i) * 5; |
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196 | |
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197 | x2 = ee_get_width() - 10 - cos(0.02*i) * 10; |
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198 | y2 = ee_get_height() * 3 / 4 - 5 + sin(0.02*i) * 5; |
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199 | |
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200 | x3 = ee_get_width() / 4 - sin(0.02*i) * 5; |
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201 | y3 = ee_get_height() * 3 / 4 + cos(0.02*i) * 5; |
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202 | |
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203 | ee_color(EE_GREEN); |
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204 | ee_fill_triangle(xo, yo, x2, y2, x1, y1, '%'); |
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205 | ee_color(EE_YELLOW); |
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206 | ee_draw_thin_line(xo, yo, x2, y2); |
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207 | ee_draw_thin_line(x2, y2, x1, y1); |
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208 | ee_draw_thin_line(x1, y1, xo, yo); |
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209 | |
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210 | ee_color(EE_RED); |
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211 | ee_fill_triangle(x1, y1, x2, y2, x3, y3, '#'); |
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212 | ee_color(EE_YELLOW); |
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213 | ee_draw_thin_line(x1, y1, x2, y2); |
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214 | ee_draw_thin_line(x2, y2, x3, y3); |
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215 | ee_draw_thin_line(x3, y3, x1, y1); |
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216 | |
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217 | ee_color(EE_BLUE); |
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218 | ee_fill_triangle(xo, yo, x2, y2, x3, y3, '%'); |
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219 | ee_color(EE_YELLOW); |
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220 | ee_draw_thin_line(xo, yo, x2, y2); |
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221 | ee_draw_thin_line(x2, y2, x3, y3); |
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222 | ee_draw_thin_line(x3, y3, xo, yo); |
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223 | |
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224 | /* Draw a background triangle */ |
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225 | x1 = 2; |
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226 | y1 = 2; |
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227 | |
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228 | x2 = ee_get_width() - 3; |
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229 | y2 = ee_get_height() / 2; |
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230 | |
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231 | x3 = ee_get_width() / 3; |
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232 | y3 = ee_get_height() - 3; |
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233 | |
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234 | ee_color(EE_BLUE); |
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235 | // ee_fill_triangle(x1, y1, x2, y2, x3, y3, '.'); |
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236 | ee_color(EE_CYAN); |
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237 | ee_draw_thin_line(x1, y1, x3, y3); |
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238 | ee_draw_thin_line(x2, y2, x1, y1); |
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239 | ee_draw_thin_line(x3, y3, x2, y2); |
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240 | |
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241 | xo = ee_get_width() / 2 + cos(0.027*i) * ee_get_width() / 3; |
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242 | yo = ee_get_height() / 2 - sin(0.027*i) * ee_get_height() / 2; |
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243 | |
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244 | ee_draw_thin_line(x1, y1, xo, yo); |
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245 | ee_draw_thin_line(x2, y2, xo, yo); |
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246 | ee_draw_thin_line(x3, y3, xo, yo); |
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247 | |
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248 | /* Draw a sprite behind the pyramid */ |
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249 | ee_draw_sprite(xo, yo, sprite); |
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250 | |
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251 | /* Draw a trail behind the foreground sprite */ |
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252 | for(j = i - 60; j < i; j++) |
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253 | { |
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254 | int delta = ee_rand(-5, 5); |
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255 | ee_color(ee_rand(1, 10)); |
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256 | ee_putchar(ee_get_width() / 2 |
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257 | + cos(0.02*j) * (delta + ee_get_width() / 4), |
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258 | ee_get_height() / 2 |
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259 | + sin(0.02*j) * (delta + ee_get_height() / 3), |
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260 | '#'); |
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261 | } |
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262 | |
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263 | /* Draw foreground sprite */ |
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264 | ee_draw_sprite(ee_get_width() / 2 + cos(0.02*i) * ee_get_width() / 4, |
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265 | ee_get_height() / 2 + sin(0.02*i) * ee_get_height() / 3, |
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266 | sprite); |
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267 | |
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268 | ee_refresh(); |
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269 | } |
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270 | |
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271 | static void demo_dots(void) |
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272 | { |
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273 | int xmax = ee_get_width() - 1; |
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274 | int ymax = ee_get_height() - 1; |
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275 | int i; |
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276 | |
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277 | for(i = 1000; i--;) |
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278 | { |
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279 | /* Putpixel */ |
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280 | ee_color(ee_rand(1, 10)); |
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281 | ee_putchar(ee_rand(0, xmax), ee_rand(0, ymax), '#'); |
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282 | } |
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283 | ee_refresh(); |
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284 | } |
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285 | |
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286 | static void demo_lines(void) |
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287 | { |
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288 | int w = ee_get_width(); |
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289 | int h = ee_get_height(); |
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290 | |
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291 | /* Draw lines */ |
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292 | ee_color(ee_rand(1, 10)); |
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293 | if(force_clipping) |
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294 | { |
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295 | ee_draw_line(ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), |
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296 | ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), '#'); |
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297 | } |
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298 | else |
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299 | { |
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300 | ee_draw_line(ee_rand(0, w - 1), ee_rand(0, h - 1), |
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301 | ee_rand(0, w - 1), ee_rand(0, h - 1), '#'); |
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302 | } |
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303 | ee_refresh(); |
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304 | } |
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305 | |
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306 | static void demo_thin_lines(void) |
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307 | { |
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308 | int w = ee_get_width(); |
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309 | int h = ee_get_height(); |
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310 | |
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311 | /* Draw lines */ |
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312 | ee_color(ee_rand(1, 10)); |
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313 | if(force_clipping) |
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314 | { |
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315 | ee_draw_thin_line(ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), |
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316 | ee_rand(- w, 2 * w), ee_rand(- h, 2 * h)); |
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317 | } |
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318 | else |
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319 | { |
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320 | ee_draw_thin_line(ee_rand(0, w), ee_rand(0, h), |
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321 | ee_rand(0, w), ee_rand(0, h)); |
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322 | } |
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323 | ee_refresh(); |
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324 | } |
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325 | |
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326 | static void demo_circles(void) |
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327 | { |
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328 | int w = ee_get_width(); |
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329 | int h = ee_get_height(); |
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330 | |
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331 | /* Draw circles */ |
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332 | if(force_clipping) |
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333 | { |
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334 | ee_color(ee_rand(1, 10)); |
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335 | ee_draw_circle(ee_rand(- w, 2 * w), |
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336 | ee_rand(- h, 2 * h), |
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337 | ee_rand(0, (w + h) / 2), |
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338 | '#'); |
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339 | } |
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340 | else |
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341 | { |
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342 | int x = ee_rand(0, w); |
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343 | int y = ee_rand(0, h); |
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344 | int r = ee_rand(0, (w + h) / 2); |
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345 | |
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346 | if(x - r < 0 || x + r >= w || y - r < 0 || y + r >= h) |
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347 | { |
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348 | demo_circles(); |
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349 | return; |
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350 | } |
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351 | |
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352 | ee_color(ee_rand(1, 10)); |
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353 | ee_draw_circle(x, y, r, '#'); |
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354 | } |
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355 | |
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356 | ee_refresh(); |
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357 | } |
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358 | |
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359 | static void demo_ellipses(void) |
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360 | { |
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361 | int w = ee_get_width(); |
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362 | int h = ee_get_height(); |
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363 | |
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364 | /* Draw circles */ |
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365 | if(force_clipping) |
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366 | { |
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367 | ee_color(ee_rand(1, 10)); |
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368 | ee_draw_ellipse(ee_rand(- w, 2 * w), |
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369 | ee_rand(- h, 2 * h), |
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370 | ee_rand(0, w), |
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371 | ee_rand(0, h), |
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372 | '#'); |
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373 | } |
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374 | else |
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375 | { |
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376 | int x = ee_rand(0, w); |
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377 | int y = ee_rand(0, h); |
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378 | int a = ee_rand(0, w); |
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379 | int b = ee_rand(0, h); |
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380 | |
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381 | if(x - a < 0 || x + a >= w || y - b < 0 || y + b >= h) |
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382 | { |
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383 | demo_ellipses(); |
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384 | return; |
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385 | } |
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386 | |
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387 | ee_color(ee_rand(1, 10)); |
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388 | ee_draw_ellipse(x, y, a, b, '#'); |
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389 | } |
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390 | |
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391 | ee_refresh(); |
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392 | } |
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393 | |
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394 | static void demo_triangles(void) |
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395 | { |
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396 | int w = ee_get_width(); |
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397 | int h = ee_get_height(); |
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398 | |
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399 | /* Draw lines */ |
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400 | ee_color(ee_rand(1, 10)); |
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401 | if(force_clipping) |
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402 | { |
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403 | ee_fill_triangle(ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), |
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404 | ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), |
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405 | ee_rand(- w, 2 * w), ee_rand(- h, 2 * h), '#'); |
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406 | } |
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407 | else |
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408 | { |
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409 | ee_fill_triangle(ee_rand(0, w - 1), ee_rand(0, h - 1), |
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410 | ee_rand(0, w - 1), ee_rand(0, h - 1), |
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411 | ee_rand(0, w - 1), ee_rand(0, h - 1), '#'); |
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412 | } |
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413 | ee_refresh(); |
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414 | } |
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415 | |
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416 | static void demo_outlined_triangles(void) |
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417 | { |
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418 | int w = ee_get_width(); |
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419 | int h = ee_get_height(); |
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420 | int x1, y1, x2, y2, x3, y3; |
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421 | |
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422 | /* Draw lines */ |
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423 | ee_color(ee_rand(1, 10)); |
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424 | if(force_clipping) |
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425 | { |
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426 | x1 = ee_rand(- w, 2 * w); |
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427 | y1 = ee_rand(- h, 2 * h); |
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428 | x2 = ee_rand(- w, 2 * w); |
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429 | y2 = ee_rand(- h, 2 * h); |
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430 | x3 = ee_rand(- w, 2 * w); |
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431 | y3 = ee_rand(- h, 2 * h); |
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432 | } |
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433 | else |
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434 | { |
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435 | |
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436 | x1 = ee_rand(0, w - 1); |
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437 | y1 = ee_rand(0, h - 1); |
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438 | x2 = ee_rand(0, w - 1); |
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439 | y2 = ee_rand(0, h - 1); |
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440 | x3 = ee_rand(0, w - 1); |
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441 | y3 = ee_rand(0, h - 1); |
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442 | } |
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443 | |
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444 | ee_fill_triangle(x1, y1, x2, y2, x3, y3, '#'); |
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445 | |
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446 | ee_color(ee_rand(1, 10)); |
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447 | ee_draw_thin_line(x1, y1, x2, y2); |
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448 | ee_draw_thin_line(x2, y2, x3, y3); |
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449 | ee_draw_thin_line(x3, y3, x1, y1); |
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450 | |
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451 | ee_refresh(); |
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452 | } |
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453 | |
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454 | static void demo_sprites(void) |
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455 | { |
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456 | ee_draw_sprite(ee_rand(0, ee_get_width() - 1), |
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457 | ee_rand(0, ee_get_height() - 1), sprite); |
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458 | ee_refresh(); |
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459 | } |
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460 | |
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461 | static void demo_pyramid(void) |
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462 | { |
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463 | static int i = 0; |
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464 | |
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465 | int xo, yo, x1, y1, x2, y2, x3, y3; |
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466 | |
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467 | i++; |
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468 | |
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469 | xo = ee_get_width() * 5 / 8; |
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470 | yo = 2; |
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471 | |
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472 | x1 = ee_get_width() / 8 + sin(0.03*i) * 5; |
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473 | y1 = ee_get_height() / 2 + cos(0.03*i) * 5; |
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474 | |
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475 | x2 = ee_get_width() - 10 - cos(0.02*i) * 10; |
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476 | y2 = ee_get_height() - 5 + sin(0.02*i) * 5; |
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477 | |
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478 | x3 = ee_get_width() / 4 - sin(0.02*i) * 5; |
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479 | y3 = ee_get_height() + cos(0.02*i) * 5; |
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480 | |
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481 | ee_clear(); |
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482 | |
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483 | ee_color(EE_GREEN); |
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484 | ee_fill_triangle(xo, yo, x2, y2, x1, y1, '%'); |
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485 | ee_color(EE_YELLOW); |
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486 | ee_draw_thin_line(xo, yo, x2, y2); |
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487 | ee_draw_thin_line(x2, y2, x1, y1); |
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488 | ee_draw_thin_line(x1, y1, xo, yo); |
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489 | |
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490 | ee_color(EE_RED); |
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491 | ee_fill_triangle(x1, y1, x2, y2, x3, y3, '#'); |
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492 | ee_color(EE_YELLOW); |
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493 | ee_draw_thin_line(x1, y1, x2, y2); |
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494 | ee_draw_thin_line(x2, y2, x3, y3); |
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495 | ee_draw_thin_line(x3, y3, x1, y1); |
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496 | |
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497 | ee_color(EE_BLUE); |
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498 | ee_fill_triangle(xo, yo, x2, y2, x3, y3, '%'); |
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499 | ee_color(EE_YELLOW); |
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500 | ee_draw_thin_line(xo, yo, x2, y2); |
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501 | ee_draw_thin_line(x2, y2, x3, y3); |
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502 | ee_draw_thin_line(x3, y3, xo, yo); |
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503 | |
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504 | ee_refresh(); |
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505 | } |
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506 | |
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