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annotate src/core/message.c @ 59:52792b863ff7

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misc: separate core from game
author David Demelier <markand@malikania.fr>
date Tue, 21 Jan 2020 12:42:33 +0100
parents src/message.c@b815621df3e3
children 7266c750b649
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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 "font.h"
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22 #include "message.h"
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23 #include "painter.h"
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24 #include "sprite.h"
24
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25 #include "texture.h"
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26
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27 #define MESSAGE_SPEED 1000 /* Time delay for animations */
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28 #define MESSAGE_TIMEOUT 5000 /* Time for auto-closing */
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29
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30 void
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31 message_start(struct message *msg)
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32 {
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33 assert(msg);
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34
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35 msg->elapsed = 0;
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36 msg->state = MESSAGE_OPENING;
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37 }
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38
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39 void
46
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40 message_update(struct message *msg, unsigned int ticks)
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41 {
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42 assert(msg);
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43
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44 msg->elapsed += ticks;
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45
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46 switch (msg->state) {
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47 case MESSAGE_OPENING:
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48 if (msg->elapsed >= MESSAGE_SPEED)
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49 msg->state = MESSAGE_SHOWING;
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50 break;
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51 case MESSAGE_SHOWING:
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52 /* Do automatically switch state if requested by the user. */
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53 if (msg->flags & MESSAGE_AUTOMATIC && msg->elapsed >= MESSAGE_TIMEOUT)
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54 msg->state = MESSAGE_HIDING;
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55
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56 break;
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57 default:
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58 break;
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59 }
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60 }
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61
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62 void
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63 message_draw(struct message *msg)
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64 {
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65 assert(msg);
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66
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67 /* TODO: more constant variables. */
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68 struct texture *lines[3];
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69 int x = 160;
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70 int y = 80;
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71
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72 painter_set_color(0xff0000ff);
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73 painter_draw_rectangle(true, x, y, 960, 160);
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74
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75 for (int i = 0; msg->text[i]; ++i) {
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76 lines[i] = font_render(msg->font, msg->text[i], 0xffffffff);
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77
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78 if (!lines[i])
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79 continue;
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80
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81 texture_draw(lines[i], x, y);
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82 texture_close(lines[i]);
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83 y += 53;
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84 }
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85 }
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86
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87 void
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88 message_hide(struct message *msg)
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89 {
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90 assert(msg);
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91
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92 msg->elapsed = 0;
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93 }
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94
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95 bool
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96 message_is_complete(struct message *msg)
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97 {
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98 assert(msg);
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99
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100 return msg->state == MESSAGE_HIDING && msg->elapsed >= MESSAGE_SPEED;
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101 }