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annotate libmlk-rpg/mlk/rpg/battle-state-check.c @ 434:4e78f045e8c0

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rpg: cleanup hierarchy
author David Demelier <markand@malikania.fr>
date Sat, 15 Oct 2022 21:24:17 +0200
parents src/libmlk-rpg/rpg/battle-state-check.c@8f59201dc76b
children 25a56ca53ac2
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1 /*
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2 * battle-state-check.c -- battle state (check status)
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3 *
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4 * Copyright (c) 2020-2022 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 <stdlib.h>
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21 #include <string.h>
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22
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23 #include <mlk/core/alloc.h>
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24 #include <mlk/core/panic.h>
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25 #include <mlk/core/sprite.h>
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26 #include <mlk/core/texture.h>
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27 #include <mlk/core/trace.h>
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28
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29 #include "battle-state-check.h"
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30 #include "battle-state-lost.h"
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31 #include "battle-state-victory.h"
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32 #include "battle-state.h"
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33 #include "battle.h"
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34 #include "character.h"
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35
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36 struct fadeout {
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37 struct character *ch;
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38 int x;
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39 int y;
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40 struct drawable dw;
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41 unsigned int alpha;
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42 unsigned int elapsed;
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43 };
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44
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45 static int
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46 fadeout_update(struct drawable *dw, unsigned int ticks)
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47 {
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48 struct fadeout *fade = dw->data;
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49
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50 fade->elapsed += ticks;
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51
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52 if (fade->elapsed >= 8) {
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53 fade->elapsed = 0;
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54
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55 if (fade->alpha == 0)
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56 return 1;
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57
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58 fade->alpha -= 10;
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59 }
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60
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61 return 0;
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62 }
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63
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64 static void
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65 fadeout_draw(struct drawable *dw)
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66 {
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67 const struct fadeout *fade = dw->data;
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68 struct sprite *sprite = fade->ch->sprites[CHARACTER_SPRITE_NORMAL];
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69
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70 texture_set_alpha_mod(sprite->texture, fade->alpha);
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71 sprite_draw(sprite, 0, 0, fade->x, fade->y);
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72 texture_set_alpha_mod(sprite->texture, 255);
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73 }
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74
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75 static void
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76 fadeout_finish(struct drawable *dw)
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77 {
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78 free(dw->data);
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79 }
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80
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81 static void
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82 fadeout(struct battle *bt, struct battle_entity *et)
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83 {
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84 struct fadeout *fade;
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85
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86 if (!bt->effects) {
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87 tracef("can't create a fadeout effect without a drawable_stack");
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88 return;
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89 }
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90
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91 fade = alloc_new0(sizeof (*fade));
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92 fade->ch = et->ch;
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93 fade->x = et->x;
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94 fade->y = et->y;
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95 fade->alpha = 250;
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96 fade->dw.data = fade;
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97 fade->dw.draw = fadeout_draw;
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98 fade->dw.update = fadeout_update;
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99 fade->dw.finish = fadeout_finish;
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100
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101 if (drawable_stack_add(bt->effects, &fade->dw) < 0)
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102 free(fade);
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103 }
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104
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105 static int
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106 is_dead(const struct battle *bt)
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107 {
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108 const struct battle_entity *et;
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109
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110 BATTLE_TEAM_FOREACH(bt, et) {
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111 if (!character_ok(et->ch))
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112 continue;
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113 if (et->ch->hp > 0)
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114 return 0;
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115 }
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116
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117 return 1;
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118 }
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119
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120 static int
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121 is_won(const struct battle *bt)
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122 {
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123 const struct battle_entity *et;
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124
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125 BATTLE_ENEMY_FOREACH(bt, et)
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126 if (character_ok(et->ch))
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127 return 0;
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128
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129 return 1;
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130 }
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131
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132 static void
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133 clean(struct battle *bt)
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134 {
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135 for (size_t i = 0; i < bt->enemiesz; ++i) {
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136 if (bt->enemies[i] && character_ok(bt->enemies[i]->ch) && bt->enemies[i]->ch->hp == 0) {
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137 fadeout(bt, bt->enemies[i]);
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138 bt->enemies[i] = NULL;
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139 }
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140 }
192
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141 }
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142
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143 static int
192
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144 update(struct battle_state *st, struct battle *bt, unsigned int ticks)
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145 {
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146 (void)st;
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147 (void)ticks;
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148
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149 battle_state_check_update(bt);
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150
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151 return 0;
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152 }
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153
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154 static void
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155 draw(const struct battle_state *st, const struct battle *bt)
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156 {
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157 (void)st;
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158
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159 battle_state_check_draw(bt);
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160 }
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161
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162 static void
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163 finish(struct battle_state *st, struct battle *bt)
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164 {
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165 (void)bt;
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166
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167 free(st);
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168 }
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169
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170 void
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171 battle_state_check_update(struct battle *bt)
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172 {
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173 assert(battle_ok(bt));
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174
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175 clean(bt);
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176
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177 if (is_dead(bt))
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178 battle_state_lost(bt);
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179 else if (is_won(bt))
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180 battle_state_victory(bt);
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181 else
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182 battle_next(bt);
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183 }
192
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184
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185 void
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186 battle_state_check_draw(const struct battle *bt)
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187 {
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188 assert(battle_ok(bt));
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189
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190 battle_draw_component(bt, BATTLE_COMPONENT_ALL);
192
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191 }
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192
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193 void
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194 battle_state_check(struct battle *bt)
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195 {
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196 assert(battle_ok(bt));
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197
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198 struct battle_state *self;
192
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199
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200 self = alloc_new0(sizeof (*self));
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201 self->data = bt;
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202 self->update = update;
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203 self->draw = draw;
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204 self->finish = finish;
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205
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206 battle_switch(bt, self);
192
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207 }