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annotate src/core/message.c @ 65:80a913d25aa9

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core: implement script, closes #2465 @2h
author David Demelier <markand@malikania.fr>
date Mon, 27 Jan 2020 12:24:20 +0100
parents da9b7462ab92
children 7187c0d9b9c0
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1 /*
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2 * message.c -- message dialog
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3 *
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include <assert.h>
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20
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21 #include "event.h"
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22 #include "font.h"
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23 #include "message.h"
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24 #include "painter.h"
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25 #include "sprite.h"
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26 #include "texture.h"
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27 #include "window.h"
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28
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29 #define MESSAGE_SPEED 200 /* Time delay for animations */
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30 #define MESSAGE_TIMEOUT 5000 /* Time for auto-closing */
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31
62
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32 static unsigned int
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33 average(const struct message *msg)
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34 {
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35 unsigned int n = 0;
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36 unsigned int total = 0;
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37
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38 for (int i = 0; i < 6; ++i) {
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39 if (msg->textures[i]) {
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40 n += 1;
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41 total += texture_height(msg->textures[i]);
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42 }
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43 }
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44
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45 return n > 0 ? total / n : 0;
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46 }
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47
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48 static void
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49 clear(struct message *msg)
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50 {
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51 for (unsigned int i = 0; i < 12; ++i) {
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52 if (msg->textures[i]) {
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53 texture_close(msg->textures[i]);
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54 msg->textures[i] = NULL;
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55 }
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56 }
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57 }
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58
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59 static void
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60 redraw(struct message *msg)
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61 {
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62 clear(msg);
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63
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64 /* Generate textures if not already done. */
64
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65 for (unsigned int i = 0; i < 6; ++i) {
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66 if (!msg->text[i])
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67 continue;
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68
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69 /* Normal lines of text. */
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70 unsigned long color = msg->colors[0];
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71
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72 if (msg->flags & MESSAGE_QUESTION && msg->index == i)
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73 color = msg->colors[1];
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74
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75 if (!msg->textures[i])
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76 msg->textures[i] = font_render(
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77 msg->font,
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78 msg->text[i],
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79 color
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80 );
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81 if (!msg->textures[i + 6])
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82 msg->textures[i + 6] = font_render(
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83 msg->font,
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84 msg->text[i],
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85 0x000000ff
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86 );
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87 }
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88 }
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89
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90 void
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91 message_start(struct message *msg)
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92 {
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93 assert(msg);
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94
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95 msg->elapsed = 0;
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96 msg->state = MESSAGE_OPENING;
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97 msg->height[0] = texture_height(msg->frame);
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98 msg->height[1] = 0;
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99
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100 redraw(msg);
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101 }
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102
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103 void
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104 message_handle(struct message *msg, const union event *ev)
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105 {
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106 assert(msg);
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107 assert(ev);
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108
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109 if (ev->type != EVENT_KEYDOWN || msg->state == MESSAGE_NONE)
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110 return;
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111
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112 switch (ev->key.key) {
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113 case KEY_UP:
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114 if (msg->index > 0)
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115 msg->index--;
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116 break;
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117 case KEY_DOWN:
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118 if (msg->index < 5 && msg->text[msg->index + 1])
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119 msg->index++;
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120 break;
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121 case KEY_ENTER:
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122 msg->state = MESSAGE_HIDING;
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123 msg->elapsed = 0;
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124 break;
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125 default:
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126 break;
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127 }
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128
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129 redraw(msg);
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130 }
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131
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132 bool
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133 message_update(struct message *msg, unsigned int ticks)
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134 {
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135 assert(msg);
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136
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137 msg->elapsed += ticks;
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138
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139 switch (msg->state) {
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140 case MESSAGE_OPENING:
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141 msg->height[1] += texture_height(msg->frame) * ticks / MESSAGE_SPEED;
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142
64
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143 if (msg->height[1] > msg->height[0])
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144 msg->height[1] = msg->height[0];
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145 if (msg->elapsed >= MESSAGE_SPEED) {
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146 msg->state = MESSAGE_SHOWING;
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147 msg->elapsed = 0;
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148 }
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149
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150 break;
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151 case MESSAGE_SHOWING:
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152 /* Do automatically switch state if requested by the user. */
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153 if (msg->flags & MESSAGE_AUTOMATIC && msg->elapsed >= MESSAGE_TIMEOUT) {
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154 msg->state = MESSAGE_HIDING;
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155 msg->elapsed = 0;
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156 }
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157
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158 break;
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159 case MESSAGE_HIDING:
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160 msg->height[1] -= texture_height(msg->frame) * ticks / MESSAGE_SPEED;
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161
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162 if (msg->elapsed >= MESSAGE_SPEED) {
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163 msg->state = MESSAGE_NONE;
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164 msg->elapsed = 0;
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165 }
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166
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167 break;
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168 default:
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169 break;
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170 }
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171
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172 return msg->state == MESSAGE_NONE;
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173 }
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174
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175 void
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176 message_draw(struct message *msg)
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177 {
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178 assert(msg);
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179 assert(msg->frame);
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180
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181 const unsigned int w = texture_width(msg->frame);
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182 const unsigned int h = texture_height(msg->frame);
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183 const unsigned int x = (window_width() / 2) - (w / 2);
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184 const unsigned int y = 80;
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185 const unsigned int avgh = average(msg);
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186 const unsigned int gapy = (h - (avgh * 6)) / 7;
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187
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188 switch (msg->state) {
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189 case MESSAGE_OPENING:
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190 case MESSAGE_HIDING:
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191 texture_draw_ex(msg->frame, 0, 0, w, msg->height[1], x, y, w, msg->height[1], 0);
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192 break;
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193 case MESSAGE_SHOWING:
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194 texture_draw(msg->frame, x, y);
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195
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196 for (int i = 0; i < 6; ++i) {
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197 /* TODO: avatar handling */
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198 const int real_x = x + 20;
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199 const int real_y = y + ((i + 1) * gapy) + (i * avgh);
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200
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201 if (!msg->textures[i])
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202 continue;
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203
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204 texture_draw(msg->textures[i + 6], real_x + 2, real_y + 2);
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205 texture_draw(msg->textures[i], real_x, real_y);
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206 }
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207 break;
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208 default:
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209 break;
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210 }
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211 }
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212
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213 void
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214 message_hide(struct message *msg)
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215 {
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216 assert(msg);
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217
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218 msg->state = MESSAGE_HIDING;
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219 msg->elapsed = 0;
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220 }
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221
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222 void
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223 message_close(struct message *msg)
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224 {
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225 assert(msg);
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226
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227 clear(msg);
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228 }