src/game/settings.c

   1 #include "system/stacktrace.h"
   2 #include "settings.h"
   3 #include "config.h"
   4
   5 Settings create_settings(void)
   6 {
   7     Settings settings = {
   8         .volume_slider = {
   9             .drag = 0,
  10             .value = SOUND_SAMPLES_DEFAULT_VOLUME,
  11             .max_value = 100.0f,
  12         },
  13
  14         .volume_slider_scale = {
  15             0.25f, 0.10f
  16         },
  17
  18         .background = {
  19             .base_color = {0.5f, 0.8f, 0.5f, 1.0f}
  20         },
  21
  22         .camera_position = {
  23             0.0f, 0.0f
  24         }
  25     };
  26
  27     return settings;
  28 }
  29
  30 void settings_render(const Settings *settings, const Camera *camera)
  31 {
  32     trace_assert(settings);
  33     trace_assert(camera);
  34
  35     background_render(&settings->background, camera);
  36
  37     const Rect viewport = camera_view_port_screen(camera);
  38
  39     /* CSS volume */
  40     const Rect position = {
  41         .w = viewport.w * settings->volume_slider_scale.x,
  42         .h = viewport.h * settings->volume_slider_scale.y,
  43         .x = viewport.w - viewport.w * settings->volume_slider_scale.x - 5.0f,
  44         .y = 5.0f,
  45     };
  46
  47     /* HTML volume */
  48     slider_render(&settings->volume_slider, camera, position);
  49 }
  50
  51 void settings_event(Settings *settings, Camera *camera, const SDL_Event *event)
  52 {
  53     trace_assert(settings);
  54     trace_assert(event);
  55
  56     const Rect viewport = camera_view_port_screen(camera);
  57     const Rect position = {
  58         .w = viewport.w * settings->volume_slider_scale.x,
  59         .h = viewport.h * settings->volume_slider_scale.y,
  60         .x = viewport.w - viewport.w * settings->volume_slider_scale.x - 5.0f,
  61         .y = 5.0f,
  62     };
  63
  64     if (slider_event(
  65             &settings->volume_slider,
  66             event,
  67             position, NULL) < 0) {
  68         return;
  69     }
  70 }
  71
  72 void settings_update(Settings *settings, Camera *camera, float dt)
  73 {
  74     trace_assert(settings);
  75     trace_assert(camera);
  76
  77     vec_add(&settings->camera_position,
  78             vec(50.0f * dt, 0.0f));
  79     camera_center_at(camera, settings->camera_position);
  80 }