src/game/level_picker.c

   1 #include <stdio.h>
   2
   3 #include "./level_picker.h"
   4 #include "game/level/background.h"
   5 #include "game/sprite_font.h"
   6 #include "system/lt.h"
   7 #include "system/nth_alloc.h"
   8 #include "system/stacktrace.h"
   9 #include "system/str.h"
  10 #include "ui/list_selector.h"
  11 #include "system/log.h"
  12 #include "game/level_folder.h"
  13 #include "ui/wiggly_text.h"
  14 #include "ui/slider.h"
  15
  16 #define TITLE_MARGIN_TOP 100.0f
  17 #define TITLE_MARGIN_BOTTOM 100.0f
  18
  19 struct LevelPicker
  20 {
  21     Lt *lt;
  22     Background background;
  23     Vec2f camera_position;
  24     LevelFolder *level_folder;
  25     WigglyText wiggly_text;
  26     ListSelector *list_selector;
  27 };
  28
  29 LevelPicker *create_level_picker(const char *dirpath)
  30 {
  31     trace_assert(dirpath);
  32
  33     Lt *lt = create_lt();
  34
  35     LevelPicker *level_picker = PUSH_LT(
  36         lt,
  37         nth_calloc(1, sizeof(LevelPicker)),
  38         free);
  39     if (level_picker == NULL) {
  40         RETURN_LT(lt, NULL);
  41     }
  42     level_picker->lt = lt;
  43
  44     level_picker->background = create_background(hexstr("073642"));
  45
  46     level_picker->camera_position = vec(0.0f, 0.0f);
  47
  48     level_picker->level_folder = PUSH_LT(
  49         lt,
  50         create_level_folder(dirpath),
  51         destroy_level_folder);
  52     if (level_picker->level_folder == NULL) {
  53         RETURN_LT(lt, NULL);
  54     }
  55
  56     level_picker->wiggly_text = (WigglyText) {
  57         .text = "Select Level",
  58         .scale = {10.0f, 10.0f},
  59         .color = COLOR_WHITE,
  60     };
  61
  62     level_picker->list_selector = PUSH_LT(
  63         lt,
  64         create_list_selector(
  65             level_folder_titles(level_picker->level_folder),
  66             level_folder_count(level_picker->level_folder),
  67             vec(5.0f, 5.0f),
  68             50.0f),
  69         destroy_list_selector);
  70     if (level_picker->list_selector == NULL) {
  71         RETURN_LT(lt, NULL);
  72     }
  73
  74     return level_picker;
  75 }
  76
  77 void destroy_level_picker(LevelPicker *level_picker)
  78 {
  79     trace_assert(level_picker);
  80     RETURN_LT0(level_picker->lt);
  81 }
  82
  83 int level_picker_render(const LevelPicker *level_picker,
  84                         const Camera *camera)
  85 {
  86     trace_assert(level_picker);
  87
  88     const Rect viewport = camera_view_port_screen(camera);
  89
  90     if (background_render(&level_picker->background, camera) < 0) {
  91         return -1;
  92     }
  93
  94     const Vec2f title_size = wiggly_text_size(&level_picker->wiggly_text);
  95
  96     wiggly_text_render(
  97         &level_picker->wiggly_text,
  98         camera,
  99         vec(viewport.w * 0.5f - title_size.x * 0.5f, TITLE_MARGIN_TOP));
 100
 101     if (list_selector_render(camera, level_picker->list_selector) < 0) {
 102         return -1;
 103     }
 104
 105     {
 106         /* CSS */
 107         const float padding = 20.0f;
 108         const Vec2f size = vec(3.0f, 3.0f);
 109         const Vec2f position = vec(0.0f, viewport.h - size.y * FONT_CHAR_HEIGHT);
 110
 111         /* HTML */
 112         camera_render_text_screen(
 113             camera,
 114             "Press 'N' to create new level",
 115             size,
 116             COLOR_WHITE,
 117             vec(position.x + padding,
 118                 position.y - padding));
 119     }
 120
 121     return 0;
 122 }
 123
 124 int level_picker_update(LevelPicker *level_picker,
 125                         float delta_time)
 126 {
 127     trace_assert(level_picker);
 128
 129     vec_add(&level_picker->camera_position,
 130             vec(50.0f * delta_time, 0.0f));
 131
 132     if (wiggly_text_update(&level_picker->wiggly_text, delta_time) < 0) {
 133         return -1;
 134     }
 135
 136     return 0;
 137 }
 138
 139 int level_picker_event(LevelPicker *level_picker,
 140                        const SDL_Event *event)
 141 {
 142     trace_assert(level_picker);
 143     trace_assert(event);
 144
 145     switch (event->type) {
 146     case SDL_WINDOWEVENT: {
 147         switch (event->window.event) {
 148         case SDL_WINDOWEVENT_SHOWN:
 149         case SDL_WINDOWEVENT_SIZE_CHANGED: {
 150             const Vec2f font_scale = vec(5.0f, 5.0f);
 151             const float padding_bottom = 50.0f;
 152
 153             int width;
 154             SDL_GetRendererOutputSize(SDL_GetRenderer(SDL_GetWindowFromID(event->window.windowID)), &width, NULL);
 155
 156             const Vec2f title_size = wiggly_text_size(&level_picker->wiggly_text);
 157
 158             const Vec2f selector_size = list_selector_size(
 159                 level_picker->list_selector,
 160                 font_scale,
 161                 padding_bottom);
 162
 163             list_selector_move(
 164                 level_picker->list_selector,
 165                 vec((float)width * 0.5f - selector_size.x * 0.5f,
 166                     TITLE_MARGIN_TOP + title_size.y + TITLE_MARGIN_BOTTOM));
 167         } break;
 168         }
 169     } break;
 170     }
 171
 172     return list_selector_event(level_picker->list_selector, event);
 173 }
 174
 175 int level_picker_input(LevelPicker *level_picker,
 176                        const Uint8 *const keyboard_state,
 177                        SDL_Joystick *the_stick_of_joy)
 178 {
 179     trace_assert(level_picker);
 180     trace_assert(keyboard_state);
 181     (void) the_stick_of_joy;
 182     return 0;
 183 }
 184
 185 const char *level_picker_selected_level(const LevelPicker *level_picker)
 186 {
 187     trace_assert(level_picker);
 188
 189     const int selected_index = list_selector_selected(level_picker->list_selector);
 190     if (selected_index < 0) {
 191         return NULL;
 192     }
 193
 194     const char **filenames = level_folder_filenames(level_picker->level_folder);
 195
 196     return filenames[selected_index];
 197 }
 198
 199 void level_picker_clean_selection(LevelPicker *level_picker)
 200 {
 201     trace_assert(level_picker);
 202     list_selector_clean_selection(level_picker->list_selector);
 203 }
 204
 205 int level_picker_enter_camera_event(LevelPicker *level_picker,
 206                                     Camera *camera)
 207 {
 208     camera_center_at(camera, level_picker->camera_position);
 209     return 0;
 210 }