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annotate librpg/rpg/battle-state-selection.c @ 230:86b71e1f9dd5

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rpg: add movements in battle
author David Demelier <markand@malikania.fr>
date Mon, 23 Nov 2020 17:05:07 +0100
parents befa2e855d3b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
192
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1 /*
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2 * battle-state-selection.h -- battle state (selection)
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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 <stdlib.h>
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21
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22 #include <core/alloc.h>
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23 #include <core/event.h>
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24 #include <core/panic.h>
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25 #include <core/sprite.h>
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26 #include <core/util.h>
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27
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28 #include <ui/theme.h>
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29
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30 #include "battle.h"
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31 #include "battle-bar.h"
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32 #include "battle-state.h"
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33 #include "battle-state-check.h"
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34 #include "battle-state-menu.h"
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35 #include "battle-state-selection.h"
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36 #include "battle-state-sub.h"
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37 #include "character.h"
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38 #include "spell.h"
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39
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40 struct select {
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41 struct battle_state state;
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42 enum selection type;
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43 unsigned int selection;
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44 };
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45
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46 static void
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47 select_adj_in(struct select *select, const struct battle_entity entities[], size_t entitiesz, int step)
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48 {
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49 assert(select->selection != (unsigned int)-1);
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50
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51 unsigned int newselection = select->selection;
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52
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53 if (step < 0) {
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54 while (newselection > 0) {
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55 if (character_ok(entities[--newselection].ch)) {
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56 select->selection = newselection;
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57 break;
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58 }
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59 }
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60 } else {
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61 while (newselection < entitiesz) {
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62 if (character_ok(entities[++newselection].ch)) {
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63 select->selection = newselection;
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64 break;
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65 }
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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 static void
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71 select_adj(struct select *select, const struct battle *bt, int step)
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72 {
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73 switch (select->type) {
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74 case SELECTION_TEAM_ONE:
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75 case SELECTION_TEAM_COMBINED:
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76 select_adj_in(select, bt->team, NELEM(bt->team), step);
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77 break;
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78 case SELECTION_ENEMY_ONE:
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79 case SELECTION_ENEMY_COMBINED:
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80 select_adj_in(select, bt->enemies, NELEM(bt->enemies), step);
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81 default:
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82 break;
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83 }
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84 }
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85
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86 static void
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87 handle_keydown(struct battle_state *st, struct battle *bt, const union event *ev)
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88 {
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89 assert(ev->type == EVENT_KEYDOWN);
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90
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91 struct select *select = st->data;
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92 struct character *source = bt->order_cur->ch;
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93 const struct spell *sp = source->spells[bt->bar.sub_grid.selected];
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94
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95 switch (ev->key.key) {
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96 case KEY_ESCAPE:
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97 battle_state_sub(bt);
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98 break;
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99 case KEY_ENTER:
230
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100 switch (bt->bar.menu) {
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101 case BATTLE_BAR_MENU_ATTACK:
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102 battle_attack(bt, source, bt->enemies[select->selection].ch);
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103 break;
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104 case BATTLE_BAR_MENU_MAGIC:
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105 battle_cast(bt, source, sp, select->selection);
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106 break;
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107 default:
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108 break;
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109 }
192
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110 break;
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111 case KEY_LEFT:
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112 case KEY_UP:
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113 select_adj(select, bt, -1);
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114 break;
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115 case KEY_RIGHT:
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116 case KEY_DOWN:
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117 select_adj(select, bt, +1);
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118 break;
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119 default:
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120 break;
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121 }
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122 }
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123
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124 static void
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125 draw_cursor(const struct battle *bt, const struct battle_entity *et)
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126 {
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127 const struct theme *theme = BATTLE_THEME(bt);
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128 const struct sprite *cursor = theme->sprites[THEME_SPRITE_CURSOR];
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129 int x, y;
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130 unsigned int lh;
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131
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132 if (!cursor)
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133 return;
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134
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135 label_query(&et->name, NULL, &lh);
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136
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137 x = et->name.x - cursor->cellw - theme->padding;
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138 y = et->name.y + (((int)(lh) - (int)(cursor->cellh)) / 2);
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139
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140 sprite_draw(cursor, 1, 2, x, y);
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David Demelier <markand@malikania.fr>
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141 }
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142
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143 static void
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David Demelier <markand@malikania.fr>
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144 draw_cursors(const struct battle_state *st,
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145 const struct battle *bt,
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146 const struct battle_entity entities[],
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147 size_t entitiesz)
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148 {
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149 const struct select *select = st->data;
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150
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David Demelier <markand@malikania.fr>
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151 if (select->selection == (unsigned int)-1) {
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152 for (size_t i = 0; i < entitiesz; ++i) {
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153 const struct battle_entity *et = &entities[i];
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154
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155 if (character_ok(et->ch))
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156 draw_cursor(bt, et);
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157 }
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David Demelier <markand@malikania.fr>
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158 } else
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159 draw_cursor(bt, &entities[select->selection]);
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160 }
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161
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162 static void
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163 handle(struct battle_state *st, struct battle *bt, const union event *ev)
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164 {
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165 (void)st;
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166
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167 switch (ev->type) {
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168 case EVENT_KEYDOWN:
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169 handle_keydown(st, bt, ev);
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170 break;
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171 default:
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172 break;
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173 }
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174 }
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175
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176 static void
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177 draw(const struct battle_state *st, const struct battle *bt)
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178 {
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179 const struct select *select = st->data;
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180
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181 switch (select->type) {
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182 case SELECTION_SELF:
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183 draw_cursor(bt, bt->order_cur);
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David Demelier <markand@malikania.fr>
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184 break;
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David Demelier <markand@malikania.fr>
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185 case SELECTION_ENEMY_ALL:
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186 case SELECTION_ENEMY_ONE:
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187 case SELECTION_ENEMY_COMBINED:
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188 draw_cursors(st, bt, bt->enemies, NELEM(bt->enemies));
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David Demelier <markand@malikania.fr>
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189 break;
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David Demelier <markand@malikania.fr>
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190 case SELECTION_TEAM_ALL:
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David Demelier <markand@malikania.fr>
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191 case SELECTION_TEAM_ONE:
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David Demelier <markand@malikania.fr>
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192 case SELECTION_TEAM_COMBINED:
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193 draw_cursors(st, bt, bt->team, NELEM(bt->team));
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David Demelier <markand@malikania.fr>
parents:
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194 break;
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David Demelier <markand@malikania.fr>
parents:
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195 default:
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David Demelier <markand@malikania.fr>
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196 break;
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David Demelier <markand@malikania.fr>
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197 }
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David Demelier <markand@malikania.fr>
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198
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David Demelier <markand@malikania.fr>
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199 }
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David Demelier <markand@malikania.fr>
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200
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David Demelier <markand@malikania.fr>
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201 static void
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202 finish(struct battle_state *st, struct battle *bt)
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203 {
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204 (void)bt;
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205
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David Demelier <markand@malikania.fr>
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206 free(st->data);
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207 }
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David Demelier <markand@malikania.fr>
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208
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David Demelier <markand@malikania.fr>
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209 void
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David Demelier <markand@malikania.fr>
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210 battle_state_selection(struct battle *bt,
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David Demelier <markand@malikania.fr>
parents:
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211 enum selection type,
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David Demelier <markand@malikania.fr>
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212 unsigned int selection)
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213 {
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David Demelier <markand@malikania.fr>
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214 assert(bt);
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215
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216 struct select *select;
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David Demelier <markand@malikania.fr>
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217
227
befa2e855d3b core: reinterface the alloc module
David Demelier <markand@malikania.fr>
parents: 192
diff changeset
218 if (!(select = alloc_new0(sizeof (*select))))
192
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David Demelier <markand@malikania.fr>
parents:
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219 panic();
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David Demelier <markand@malikania.fr>
parents:
diff changeset
220
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David Demelier <markand@malikania.fr>
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221 select->type = type;
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David Demelier <markand@malikania.fr>
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222 select->selection = selection;
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David Demelier <markand@malikania.fr>
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223 select->state.data = select;
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David Demelier <markand@malikania.fr>
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224 select->state.handle = handle;
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David Demelier <markand@malikania.fr>
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225 select->state.draw = draw;
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David Demelier <markand@malikania.fr>
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226 select->state.finish = finish;
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David Demelier <markand@malikania.fr>
parents:
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227
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David Demelier <markand@malikania.fr>
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228 battle_switch(bt, &select->state);
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David Demelier <markand@malikania.fr>
parents:
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229 }