src/game/settings.c

   1 #include "system/stacktrace.h"
   2 #include "settings.h"
   3
   4 Settings create_settings(void)
   5 {
   6     Settings settings = {
   7         .volume_slider = {
   8             .drag = 0,
   9             .value = 80.0f,
  10             .max_value = 100.0f,
  11         },
  12
  13         .volume_slider_scale = {
  14             0.25f, 0.10f
  15         },
  16
  17         .background = {
  18             .base_color = {0.5f, 0.8f, 0.5f, 1.0f}
  19         },
  20
  21         .camera_position = {
  22             0.0f, 0.0f
  23         }
  24     };
  25
  26     return settings;
  27 }
  28
  29 void settings_render(const Settings *settings, const Camera *camera)
  30 {
  31     trace_assert(settings);
  32     trace_assert(camera);
  33
  34     background_render(&settings->background, camera);
  35
  36     const Rect viewport = camera_view_port_screen(camera);
  37
  38     /* CSS volume */
  39     const Rect position = {
  40         .w = viewport.w * settings->volume_slider_scale.x,
  41         .h = viewport.h * settings->volume_slider_scale.y,
  42         .x = viewport.w - viewport.w * settings->volume_slider_scale.x - 5.0f,
  43         .y = 5.0f,
  44     };
  45
  46     /* HTML volume */
  47     slider_render(&settings->volume_slider, camera, position);
  48 }
  49
  50 void settings_event(Settings *settings, Camera *camera, const SDL_Event *event)
  51 {
  52     trace_assert(settings);
  53     trace_assert(event);
  54
  55     const Rect viewport = camera_view_port_screen(camera);
  56     const Rect position = {
  57         .w = viewport.w * settings->volume_slider_scale.x,
  58         .h = viewport.h * settings->volume_slider_scale.y,
  59         .x = viewport.w - viewport.w * settings->volume_slider_scale.x - 5.0f,
  60         .y = 5.0f,
  61     };
  62
  63     if (slider_event(
  64             &settings->volume_slider,
  65             event,
  66             position, NULL) < 0) {
  67         return;
  68     }
  69 }
  70
  71 void settings_update(Settings *settings, Camera *camera, float dt)
  72 {
  73     trace_assert(settings);
  74     trace_assert(camera);
  75
  76     vec_add(&settings->camera_position,
  77             vec(50.0f * dt, 0.0f));
  78     camera_center_at(camera, settings->camera_position);
  79 }