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annotate libmlk-rpg/mlk/rpg/battle-state-selection.c @ 460:8fa69c770569

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examples: fix
author David Demelier <markand@malikania.fr>
date Mon, 27 Feb 2023 09:14:27 +0100
parents b26dd49f69ff
children 91ce23a36143
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rev   line source
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1 /*
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2 * battle-state-selection.c -- battle state (selection)
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3 *
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4 * Copyright (c) 2020-2023 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/event.h>
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25 #include <mlk/core/panic.h>
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26 #include <mlk/core/sprite.h>
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27 #include <mlk/core/util.h>
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28
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29 #include <mlk/ui/theme.h>
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30
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31 #include "battle-bar.h"
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32 #include "battle-state-item.h"
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33 #include "battle-state-menu.h"
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34 #include "battle-state-selection.h"
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35 #include "battle-state.h"
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36 #include "battle.h"
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37 #include "character.h"
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38 #include "inventory.h"
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39 #include "selection.h"
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40 #include "spell.h"
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41
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42 struct self {
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43 struct battle_state_selection data;
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44 struct battle_state state;
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45 };
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46
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47 static void
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48 select_adj_in(struct battle_state_selection *slt, struct battle_entity **entities, size_t entitiesz, int step)
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49 {
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50 assert(slt->select.index_character != (unsigned int)-1);
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51
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52 unsigned int newselection = slt->select.index_character;
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53
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54 if (step < 0) {
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55 while (newselection > 0) {
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56 if (character_ok(entities[--newselection]->ch)) {
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57 slt->select.index_character = newselection;
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58 break;
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59 }
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60 }
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61 } else {
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62 while (newselection < entitiesz) {
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63 if (character_ok(entities[++newselection]->ch)) {
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64 slt->select.index_character = newselection;
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65 break;
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66 }
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67 }
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68 }
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69 }
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70
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71 static void
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72 select_adj(struct battle_state_selection *slt, const struct battle *bt, int step)
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73 {
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74 if (slt->select.index_side == 0)
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75 select_adj_in(slt, bt->enemies, bt->enemiesz, step);
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76 else
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77 select_adj_in(slt, bt->team, bt->teamsz, step);
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78 }
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79
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80 static void
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81 handle_keydown(struct battle_state_selection *stl, struct battle *bt, const union mlk_event *ev)
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82 {
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83 assert(ev->type == MLK_EVENT_KEYDOWN);
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84
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85 switch (ev->key.key) {
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86 case MLK_KEY_ESCAPE:
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87 battle_state_menu(bt);
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88 break;
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89 case MLK_KEY_ENTER:
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90 battle_bar_select(bt->bar, bt, &stl->select);
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91 break;
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92 case MLK_KEY_LEFT:
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93 if (stl->select.allowed_sides & SELECTION_SIDE_ENEMY)
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94 stl->select.index_side = 0;
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95 break;
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96 case MLK_KEY_RIGHT:
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97 if (stl->select.allowed_sides & SELECTION_SIDE_TEAM)
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98 stl->select.index_side = 1;
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99 break;
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100 case MLK_KEY_UP:
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101 select_adj(stl, bt, -1);
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102 break;
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103 case MLK_KEY_DOWN:
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104 select_adj(stl, bt, +1);
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105 break;
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106 case MLK_KEY_TAB:
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107 if (stl->select.allowed_kinds == SELECTION_KIND_BOTH)
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108 stl->select.index_character = -1;
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109 break;
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110 default:
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111 break;
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112 }
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113 }
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114
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115 static void
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116 draw_cursor(const struct battle *bt, const struct battle_entity *et)
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117 {
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118 const struct theme *theme = BATTLE_THEME(bt);
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119 const struct sprite *cursor = theme->sprites[THEME_SPRITE_CURSOR];
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120 int x, y;
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121 unsigned int lh;
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122
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123 if (!cursor)
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124 return;
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125
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126 label_query(&et->name, NULL, &lh);
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127
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128 x = et->name.x - cursor->cellw - theme->padding;
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129 y = et->name.y + (((int)(lh) - (int)(cursor->cellh)) / 2);
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130
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131 sprite_draw(cursor, 1, 2, x, y);
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132 }
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134 static void
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135 draw_cursors(const struct battle *bt,
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136 struct battle_entity * const *entities,
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137 size_t entitiesz)
192
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138 {
289
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139 for (size_t i = 0; i < entitiesz; ++i) {
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140 const struct battle_entity *et = entities[i];
192
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141
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142 if (et && character_ok(et->ch))
289
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143 draw_cursor(bt, et);
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144 }
192
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145 }
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146
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147 static void
450
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148 handle(struct battle_state *st, struct battle *bt, const union mlk_event *ev)
192
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149 {
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150 battle_state_selection_handle(st->data, bt, ev);
192
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151 }
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152
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153 static void
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154 draw(const struct battle_state *st, const struct battle *bt)
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155 {
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156 battle_state_selection_draw(st->data, bt);
192
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157 }
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158
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159 static void
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160 finish(struct battle_state *st, struct battle *bt)
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161 {
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162 (void)bt;
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163
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164 mlk_alloc_free(st->data);
192
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165 }
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166
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167 void
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168 battle_state_selection_init(struct battle_state_selection *stl, const struct selection *select)
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169 {
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170 assert(stl);
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171 assert(select);
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172
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173 memcpy(&stl->select, select, sizeof (*select));
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174 }
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175
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176 void
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177 battle_state_selection_handle(struct battle_state_selection *stl, struct battle *bt, const union mlk_event *ev)
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178 {
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179 assert(stl);
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180 assert(bt);
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181 assert(ev);
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182
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183 switch (ev->type) {
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184 case MLK_EVENT_KEYDOWN:
382
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185 handle_keydown(stl, bt, ev);
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186 break;
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187 default:
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188 break;
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189 }
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190 }
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191
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192 void
384
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193 battle_state_selection_draw(const struct battle_state_selection *stl, const struct battle *bt)
382
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194 {
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195 assert(stl);
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196 assert(bt);
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197
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198 battle_draw_component(bt, BATTLE_COMPONENT_ALL);
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199
382
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200 if (stl->select.index_character == -1U) {
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201 /* All selected. */
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202 if (stl->select.index_side == 0)
398
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203 draw_cursors(bt, bt->enemies, bt->enemiesz);
382
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204 else
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205 draw_cursors(bt, bt->team, bt->teamsz);
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206 } else {
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207 /* Select one. */
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208 if (stl->select.index_side == 0)
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209 draw_cursor(bt, bt->enemies[stl->select.index_character]);
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210 else
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211 draw_cursor(bt, bt->team[stl->select.index_character]);
382
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212 }
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213 }
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214
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215 void
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216 battle_state_selection(struct battle *bt, const struct selection *select)
192
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217 {
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218 assert(bt);
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219 assert(select);
192
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220
382
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221 struct self *self;
192
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222
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223 self = mlk_alloc_new0(1, sizeof (*self));
382
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224 self->state.data = self;
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225 self->state.handle = handle;
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226 self->state.draw = draw;
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227 self->state.finish = finish;
192
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228
382
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229 battle_state_selection_init(&self->data, select);
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230 battle_switch(bt, &self->state);
192
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231 }