Lumenarium/src_v2/lumenarium_first.cpp

#include "lumenarium_first.h"
#include "user_space/user_space_incenter.cpp"

internal App_State*
lumenarium_init()
{
  App_State* state = 0;
  
  permanent = bump_allocator_create_reserve(MB(4));
  scratch = bump_allocator_create_reserve(KB(64));
  
  run_tests();
  
  App_Init_Desc desc = incenter_get_init_desc();
  // TODO(PS): make sure the values make sense in desc
  
  state = allocator_alloc_struct(permanent, App_State);
  add_flag(state->flags, AppState_IsRunning);
  add_flag(state->flags, AppState_RunEditor);
  
  state->input_state = input_state_create();
  
  en_init(state, desc);
  if (has_flag(state->flags, AppState_RunEditor))
  {
    ed_init(state);
  }
  incenter_init(state);
  return state;
}

internal void
lumenarium_frame_prepare(App_State* state)
{
  allocator_clear(scratch);
  
  input_state_swap_frames(&state->input_state);
  
  en_frame_prepare(state);
  if (has_flag(state->flags, AppState_RunEditor))
  {
    ed_frame_prepare(state);
  }
  incenter_frame_prepare(state);
}

internal void
lumenarium_frame(App_State* state)
{
  en_frame(state);
  if (has_flag(state->flags, AppState_RunEditor))
  {
    ed_frame(state);
  }
  incenter_frame(state);
}

internal void
lumenarium_event(Platform_Window_Event evt, App_State* state)
{
  Input_Frame* frame = state->input_state.frame_hot;
  switch (evt.kind)
  {
    case WindowEvent_MouseScroll:
    {
      frame->mouse_scroll = evt.scroll_amt;
    } break;
    
    case WindowEvent_ButtonDown:
    case WindowEvent_ButtonUp:
    {
      frame->key_flags[evt.key_code] = evt.key_flags;
    } break;
    
    case WindowEvent_Char:
    {
      frame->string_input[frame->string_input_len++] = evt.char_value;
    } break;
    
    case WindowEvent_WindowClosed:
    {
      rem_flag(state->flags, AppState_IsRunning);
    } break;
    
    invalid_default_case;
  }
}

internal void
lumenarium_cleanup(App_State* state)
{
  incenter_cleanup(state);
  en_cleanup(state);
  if (has_flag(state->flags, AppState_RunEditor))
  {
    ed_cleanup(state);
  }
}