src/game/level/level_editor/color_picker.c

   1 #include <stdbool.h>
   2
   3 #include "game/level/boxes.h"
   4 #include "system/stacktrace.h"
   5 #include "game/camera.h"
   6 #include "proto_rect.h"
   7 #include "color_picker.h"
   8 #include "color.h"
   9
  10 #define COLOR_CELL_WIDTH 50.0f
  11 #define COLOR_CELL_HEIGHT 50.0f
  12
  13 // TODO: Colors of ColorPicker are poor
  14 static Color colors[] = {
  15     {1.0f, 0.0f, 0.0f, 1.0f},
  16     {0.0f, 1.0f, 0.0f, 1.0f},
  17     {0.0f, 0.0f, 1.0f, 1.0f}
  18 };
  19 static const size_t colors_count = sizeof(colors) / sizeof(Color);
  20
  21 int color_picker_render(const ColorPicker *color_picker,
  22                         Camera *camera)
  23 {
  24     trace_assert(color_picker);
  25     trace_assert(camera);
  26
  27     for (size_t i = 0; i < colors_count; ++i) {
  28         if (camera_fill_rect_screen(
  29                 camera,
  30                 rect(COLOR_CELL_WIDTH * (float) i, 0,
  31                      COLOR_CELL_WIDTH,
  32                      COLOR_CELL_HEIGHT),
  33                 colors[i]) < 0) {
  34             return -1;
  35         }
  36     }
  37
  38     return 0;
  39 }
  40
  41 int color_picker_update(ColorPicker *color_picker,
  42                         float delta_time)
  43 {
  44     trace_assert(color_picker);
  45     (void) delta_time;
  46     return 0;
  47 }
  48
  49 int color_picker_event(ColorPicker *color_picker,
  50                        const SDL_Event *event)
  51 {
  52     trace_assert(color_picker);
  53     trace_assert(event);
  54
  55     switch (event->type) {
  56     case SDL_MOUSEBUTTONDOWN: {
  57         switch (event->button.button) {
  58         case SDL_BUTTON_LEFT: {
  59             for (size_t i = 0; i < colors_count; ++i) {
  60                 const Vec mouse_position = vec((float) event->button.x, (float) event->button.y);
  61                 const Rect color_cell =
  62                     rect(COLOR_CELL_WIDTH * (float) i, 0,
  63                          COLOR_CELL_WIDTH,
  64                          COLOR_CELL_HEIGHT);
  65                 if (rect_contains_point(color_cell, mouse_position)) {
  66                     color_picker->proto_rect->color = colors[i];
  67                     break;
  68                 }
  69             }
  70         } break;
  71         }
  72     } break;
  73     }
  74
  75     return 0;
  76 }