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annotate libmlk-adventure/adventure/action/spawner.c @ 286:3991779aaba9

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adventure: initial test of spawn
author David Demelier <markand@malikania.fr>
date Wed, 23 Dec 2020 15:37:48 +0100
parents f89a53abb314
children 63d9fb56c609
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1 /*
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2 * spawner.c -- spawn battle while moving
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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 #include <math.h>
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21 #include <stdlib.h>
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22
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23 #include <core/alloc.h>
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24 #include <core/game.h>
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25 #include <core/util.h>
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26
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27 #include <rpg/battle.h>
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28 #include <rpg/map.h>
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29
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30 #include <adventure/molko.h>
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31
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32 #include <adventure/character/black-cat.h>
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33
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34 #include "spawner.h"
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35
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36 static inline unsigned int
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37 distance(const struct spawner *s)
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38 {
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39 unsigned int gap_x = fmax(s->last_x, s->map->player_x) -
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40 fmin(s->last_x, s->map->player_x);
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41 unsigned int gap_y = fmax(s->last_y, s->map->player_y) -
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42 fmin(s->last_y, s->map->player_y);
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43
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44 return fmin(s->steps, gap_x + gap_y);
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45 }
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46
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47 static void
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48 fight(void)
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49 {
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50 /* TODO: */
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51 struct battle *bt;
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52
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53 bt = alloc_new0(sizeof (*bt));
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54 bt->enemies[0].ch = &character_black_cat;
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55 bt->enemies[0].x = 400;
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56 bt->enemies[0].y = 50;
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57 bt->inventory = &molko.inventory;
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58
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59 for (size_t i = 0; i < TEAM_MEMBER_MAX; ++i)
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60 bt->team[i].ch = molko.team.members[i];
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61
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62 molko_fight(bt);
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63 }
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64
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65 static bool
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66 update(struct action *act, unsigned int ticks)
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67 {
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68 (void)ticks;
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69
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70 struct spawner *s = act->data;
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71
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72 if (s->map->player_movement) {
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73 s->steps -= distance(s);
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74 s->last_x = s->map->player_x;
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75 s->last_y = s->map->player_y;
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76
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77 if (s->steps == 0) {
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78 s->steps = util_nrand(s->low, s->high);
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79 fight();
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80 }
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81 }
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82
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83 return false;
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84 }
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85
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86 void
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87 spawner_init(struct spawner *s)
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88 {
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89 assert(s);
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90
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91 s->last_x = s->map->player_x;
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92 s->last_y = s->map->player_y;
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93 s->steps = util_nrand(s->low, s->high);
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94 }
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95
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96 struct action *
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97 spawner_action(struct spawner *s)
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98 {
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99 assert(s);
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100
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101 s->action.data = s;
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102 s->action.update = update;
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103
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104 spawner_init(s);
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105
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106 return &s->action;
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107 }