allow seperate random instances
[vg.git] / vg.h
diff --git a/vg.h b/vg.h
index 0be8031aec1d230718ef78a2cb3e9add81797c5a..04578f7c81a5c7c53bef107079a6642cb180cf36 100644 (file)
--- a/vg.h
+++ b/vg.h
 |IMP| |        |.------------- vg_start(void) ---------------'
 |   | |        |
 |   | |        v
-|IMP| |   vg_update(void)
+|IMP| |   vg_pre_update(void)
 |   | |        |                                     
 |   | |  .-----+. 
-|   | | |        |
+|   | | |        |   called 0x to 8x
 |   | | |        v
-|IMP| |  '- vg_update_fixed(void)
+|IMP| |  '- vg_fixed_update(void)
 |   | |          |
 |   | |       .-'
 |   | |      |
 |   | |      v
-|IMP| |   vg_update_post(void)
+|IMP| |   vg_post_update(void)
 |   | |      |
 |   | |      v
 |IMP| |   vg_render(void)
 #ifndef VG_HEADER_H
   #define VG_HEADER_H
 
+  const char *vg_get_basepath(void);
+
   #include "vg_platform.h"
   #include "vg_mem.h"
-
-  #ifndef _WIN32
-    #include <execinfo.h>
-  #endif
-
-VG_STATIC void vg_print_backtrace(void)
-{
-#ifndef _WIN32
-
-   void *array[20];
-   char **strings;
-   int size, i;
-
-   size = backtrace( array, 20 );
-   strings = backtrace_symbols( array, size );
-
-   if( strings != NULL ){
-      vg_error( "---------------- gnu backtrace -------------\n" );
-
-      for( int i=0; i<size; i++ )
-         vg_info( "%s\n", strings[i] );
-
-      vg_error( "---------------- gnu backtrace -------------\n" );
-   }
-
-   free( strings );
-
-#endif
-}
   
   #ifdef VG_GAME
     #include "dep/glad/glad.h"
-    #include "submodules/SDL/include/SDL.h"
+    #include "dep/sdl/include/SDL.h"
     #include "vg_stdint.h"
     
     void vg_register_exit( void( *funcptr )(void), const char *name );
@@ -94,8 +67,9 @@ VG_STATIC void vg_print_backtrace(void)
     #include "vg_m.h"
     #include "vg_io.h"
     #include "vg_log.h"
+#ifndef VG_NO_STEAM
     #include "vg_steam.h"
-    #include <setjmp.h>
+#endif
 
   //#define VG_SYNC_DEBUG
   #ifdef VG_SYNC_DEBUG
@@ -106,40 +80,39 @@ VG_STATIC void vg_print_backtrace(void)
   #endif
 
 /* API */
-VG_STATIC void vg_enter( int argc, char *argv[], const char *window_name );
+static void vg_enter( int argc, char *argv[], const char *window_name );
 
 /* Thread 1 */
-VG_STATIC void vg_preload(void);
-VG_STATIC void vg_load(void);
+static void vg_preload(void);
+static void vg_load(void);
 
 /* Main thread */
-VG_STATIC void vg_launch_opt(void);
-VG_STATIC void vg_start(void);
+static void vg_launch_opt(void);
+static void vg_start(void);
 
-VG_STATIC void vg_framebuffer_resize(int w, int h);
-VG_STATIC void vg_update(void);
-VG_STATIC void vg_update_fixed(void);
-VG_STATIC void vg_update_post(void);
+static void vg_framebuffer_resize(int w, int h);
+static void vg_pre_update(void);
+static void vg_fixed_update(void);
+static void vg_post_update(void);
 
-VG_STATIC void vg_render(void);
-VG_STATIC void vg_gui(void);
+static void vg_render(void);
+static void vg_gui(void);
 
-struct vg
-{
+struct vg{
    /* Engine sync */
    SDL_Window     *window;
    SDL_GLContext  gl_context;
+   const char     *base_path;
 
    SDL_sem *sem_loader;        /* allows only one loader at a time */
-
    jmp_buf env_loader_exit;
 
    SDL_threadID  thread_id_main,
                  thread_id_loader;
+   void         *thread_data;
 
    SDL_SpinLock sl_status;
-   enum engine_status
-   {
+   enum engine_status{
       k_engine_status_none,
       k_engine_status_load_internal,
       k_engine_status_running,
@@ -154,10 +127,10 @@ struct vg
        window_should_close;
 
    int display_refresh_rate,
-       fps_limit;             /* 0: use vsync, >0: cap fps to this, no vsync */
+       fps_limit,
+       vsync;
 
-   enum vsync_feature
-   {
+   enum vsync_feature{
       k_vsync_feature_disabled=0,
       k_vsync_feature_enabled=1,
       k_vsync_feature_enabled_adaptive=2,
@@ -171,6 +144,7 @@ struct vg
 
    /* Runtime */
    double time,
+          time_real,
           time_delta,
           time_rate,
 
@@ -182,8 +156,7 @@ struct vg
 
    int fixed_iterations;
 
-   enum engine_stage
-   {
+   enum engine_stage{
       k_engine_stage_none,
       k_engine_stage_update,
       k_engine_stage_update_fixed,
@@ -194,16 +167,21 @@ struct vg
 
    /* graphics */
    m4x4f pv;
-   enum quality_profile
-   {
+   enum quality_profile{
       k_quality_profile_high = 0,
       k_quality_profile_low = 1,
    }
    quality_profile;
 
    float loader_ring;
+   GLuint tex_missing;
+
+   vg_rand rand;
+}
+static vg = { .time_rate = 1.0 };
+const char *vg_get_basepath(void){
+   return vg.base_path;
 }
-VG_STATIC vg = { .time_rate = 1.0 };
 
 enum vg_thread_purpose
 {
@@ -214,7 +192,7 @@ enum vg_thread_purpose
 
 #include "vg_async.h"
 
-VG_STATIC enum engine_status _vg_engine_status(void)
+static enum engine_status _vg_engine_status(void)
 {
    SDL_AtomicLock( &vg.sl_status );
    enum engine_status status = vg.engine_status;
@@ -223,7 +201,7 @@ VG_STATIC enum engine_status _vg_engine_status(void)
    return status;
 }
 
-VG_STATIC enum vg_thread_purpose vg_thread_purpose(void)
+static enum vg_thread_purpose vg_thread_purpose(void)
 {
    SDL_AtomicLock( &vg.sl_status );
 
@@ -237,33 +215,42 @@ VG_STATIC enum vg_thread_purpose vg_thread_purpose(void)
    }
 }
 
-VG_STATIC void _vg_opengl_sync_init(void)
+static void vg_assert_thread( enum vg_thread_purpose required ){
+   enum vg_thread_purpose purpose = vg_thread_purpose();
+
+   if( purpose != required ){
+      vg_fatal_error( "thread_purpose must be %u not %u\n", required, purpose );
+   }
+}
+
+static void _vg_opengl_sync_init(void)
 {
    vg.sem_loader = SDL_CreateSemaphore(1);
 }
 
-VG_STATIC void vg_checkgl( const char *src_info );
+static void vg_checkgl( const char *src_info );
 #define VG_STRINGIT( X ) #X
 #define VG_CHECK_GL_ERR() vg_checkgl( __FILE__ ":L" VG_STRINGIT(__LINE__) )
 
 #include "vg_console.h"
 #include "vg_profiler.h"
-#include "vg_audio.h"
+#ifndef VG_NO_AUDIO
+  #include "vg_audio.h"
+#endif
 #include "vg_shader.h"
 #include "vg_tex.h"
 #include "vg_input.h"
-#include "vg_ui.h"
 #include "vg_imgui.h"
 #include "vg_lines.h"
 #include "vg_loader.h"
 #include "vg_opt.h"
 
 /* Diagnostic */
-VG_STATIC struct vg_profile vg_prof_update = {.name="update()"},
+static struct vg_profile vg_prof_update = {.name="update()"},
                             vg_prof_render = {.name="render()"},
                             vg_prof_swap   = {.name="swap"};
 
-VG_STATIC void vg_checkgl( const char *src_info )
+static void vg_checkgl( const char *src_info )
 {
    int fail = 0;
 
@@ -277,12 +264,12 @@ VG_STATIC void vg_checkgl( const char *src_info )
       vg_fatal_error( "OpenGL Error" );
 }
 
-VG_STATIC void async_vg_bake_shaders( void *payload, u32 size )
+static void async_vg_bake_shaders( void *payload, u32 size )
 {
    vg_shaders_compile();
 }
 
-VG_STATIC void vg_bake_shaders(void)
+static void vg_bake_shaders(void)
 {
    vg_console_reg_cmd( "reload_shaders", vg_shaders_live_recompile, NULL );
    vg_async_call( async_vg_bake_shaders, NULL, 0 );
@@ -304,23 +291,28 @@ void async_internal_complete( void *payload, u32 size )
    SDL_AtomicUnlock( &vg.sl_status );
 }
 
-VG_STATIC void _vg_load_full(void)
+static void _vg_load_full( void *data )
 {
    vg_preload();
 
    /* internal */
+   vg_tex2d_replace_with_error( &vg.tex_missing );
    vg_loader_step( vg_input_init, vg_input_free );
    vg_loader_step( vg_lines_init, NULL );
+#ifndef VG_NO_AUDIO
    vg_loader_step( vg_audio_init, vg_audio_free );
+#endif
    vg_loader_step( vg_profiler_init, NULL );
 
    vg_async_call( async_internal_complete, NULL, 0 );
 
    /* client */
    vg_load();
+
+   vg_success( "Client loaded in %fs\n", vg.time_real );
 }
 
-VG_STATIC void _vg_process_events(void)
+static void _vg_process_events(void)
 {
    v2_zero( vg.mouse_wheel );
    v2_zero( vg.mouse_delta );
@@ -332,7 +324,33 @@ VG_STATIC void _vg_process_events(void)
    SDL_Event event;
    while( SDL_PollEvent( &event ) ){
       if( event.type == SDL_KEYDOWN ){
-         console_proc_key( event.key.keysym );
+         if( vg_console.enabled && 
+               (vg_ui.focused_control_type != k_ui_control_modal) ){
+            if( event.key.keysym.sym == SDLK_ESCAPE ||
+                event.key.keysym.scancode == SDL_SCANCODE_GRAVE ){
+               vg_console.enabled = 0;
+               ui_defocus_all();
+            }
+            else if( (event.key.keysym.mod & KMOD_CTRL) && 
+                      event.key.keysym.sym == SDLK_n ){
+               _console_suggest_next();
+            }
+            else if( (event.key.keysym.mod & KMOD_CTRL ) &&
+                      event.key.keysym.sym == SDLK_p ){
+               _console_suggest_prev();
+            }
+            else{
+               _ui_proc_key( event.key.keysym );
+            }
+         }
+         else{
+            if( event.key.keysym.scancode == SDL_SCANCODE_GRAVE ){
+               vg_console.enabled = 1;
+            }
+            else {
+               _ui_proc_key( event.key.keysym );
+            }
+         }
       }
       else if( event.type == SDL_MOUSEWHEEL ){
          vg.mouse_wheel[0] += event.wheel.preciseX;
@@ -374,7 +392,7 @@ VG_STATIC void _vg_process_events(void)
          }
       }
       else if( event.type == SDL_TEXTINPUT ){
-         console_proc_utf8( event.text.text );
+         ui_proc_utf8( event.text.text );
       }
    }
 
@@ -382,12 +400,12 @@ VG_STATIC void _vg_process_events(void)
    vg.mouse_pos[1] += vg.mouse_delta[1];
 }
 
-VG_STATIC void _vg_gameloop_update(void)
+static void _vg_gameloop_update(void)
 {
    vg_profile_begin( &vg_prof_update );
 
    vg.engine_stage = k_engine_stage_update;
-   vg_update();
+   vg_pre_update();
 
    /* Fixed update loop */
    vg.engine_stage = k_engine_stage_update_fixed;
@@ -397,11 +415,9 @@ VG_STATIC void _vg_gameloop_update(void)
    vg.time_fixed_accumulator += vg.time_delta;
 
    while( vg.time_fixed_accumulator >= VG_TIMESTEP_FIXED ){
-      vg_update_fixed();
+      vg_fixed_update();
       vg_lines.allow_input = 0;
-
       vg.time_fixed_accumulator -= VG_TIMESTEP_FIXED;
-      //vg.accumulator  = VG_MAX( 0.0, vg.accumulator );
 
       vg.fixed_iterations ++;
       if( vg.fixed_iterations == 8 ){
@@ -412,11 +428,11 @@ VG_STATIC void _vg_gameloop_update(void)
    vg.time_fixed_extrapolate = vg.time_fixed_accumulator / VG_TIMESTEP_FIXED;
 
    vg.engine_stage = k_engine_stage_update;
-   vg_update_post();
+   vg_post_update();
    vg_profile_end( &vg_prof_update );
 }
 
-VG_STATIC void _vg_gameloop_render(void)
+static void _vg_gameloop_render(void)
 {
    vg_profile_begin( &vg_prof_render );
 
@@ -428,27 +444,29 @@ VG_STATIC void _vg_gameloop_render(void)
    vg.engine_stage = k_engine_stage_ui;
    {
       ui_prerender();
-      vg_gui();
-      ui_postrender();
-#if 0
-      ui_begin( vg.window_x, vg.window_y );
+      if( vg_console.enabled ){ 
+         vg_ui.ignore_input_frames = 10;
+         vg_gui();
+         vg_ui.ignore_input_frames = 0;
+         vg_ui.wants_mouse = 1;
+         _vg_console_draw();
+      }
+      else vg_gui();
 
-      /* TODO */
-      ui_set_mouse( vg.mouse_pos[0], vg.mouse_pos[1], 0 );
+      /* vg tools */
+#ifndef VG_NO_AUDIO
+      audio_debug_ui( vg.pv );
+#endif
 
+               /* profiling */
       int frame_target = vg.display_refresh_rate;
-
-      if( vg.fps_limit > 0 ){
-         frame_target = vg.fps_limit;
-      }
-      
+      if( vg.fps_limit > 0 ) frame_target = vg.fps_limit;
       vg_profile_drawn( 
             (struct vg_profile *[]){
                &vg_prof_update,&vg_prof_render,&vg_prof_swap}, 3,
             (1.0f/(float)frame_target)*1000.0f, 
             (ui_rect){ 4, 4, 250, 0 }, 0
       );
-
       if( vg_profiler ){
          char perf[256];
          
@@ -458,49 +476,37 @@ VG_STATIC void _vg_gameloop_render(void)
                "samples: %d\n"
                "iterations: %d (acc: %.3fms%%)\n"
                "time: real(%.2f) delta(%.2f) rate(%.2f)\n"
-#ifdef _WIN32
-               "      extrap(%.2f) frame(%.2f) spin( %llu )\n",
-#else
-               "      extrap(%.2f) frame(%.2f) spin( %lu )\n",
-#endif
+               "      extrap(%.2f) frame(%.2f) spin( "PRINTF_U64" )\n",
                vg.window_x, vg.window_y, 
                frame_target, (1.0f/(float)frame_target)*1000.0f,
                vg.samples, 
                vg.fixed_iterations, 
                (vg.time_fixed_accumulator/VG_TIMESTEP_FIXED)*100.0f,
-               vg.time, vg.time_delta, vg.time_rate,
+               vg.time_real, vg.time_delta, vg.time_rate,
                vg.time_fixed_extrapolate, vg.time_frame_delta,
                vg.time_spinning );
 
-         ui_text( (ui_rect){258, 4+24+12+12,0,0},perf, 1,0);
+         ui_text( (ui_rect){258, 4+24+12+12,900,900},perf,1,0,k_ui_align_left);
       }
-
-      /* FIXME */
-      audio_debug_ui( vg.pv );
-      vg_gui();
-      _vg_console_draw();
-      
-      ui_resolve();
-      ui_draw( NULL );
-#endif
+      ui_postrender();
    }
 
    vg_profile_end( &vg_prof_render );
 }
 
-VG_STATIC int vg_framefilter( double dt )
-{
-   if( (vg.fps_limit <= 0) && (vg.vsync_feature != k_vsync_feature_error) ){
+static void vg_changevsync(void){
+   if( vg.vsync && (vg.vsync_feature != k_vsync_feature_error) ){
       /* turn on vsync if not enabled */
 
       enum vsync_feature requested = k_vsync_feature_enabled;
-      if( vg.fps_limit < 0 ) requested = k_vsync_feature_enabled_adaptive;
+      if( vg.vsync < 0 ) requested = k_vsync_feature_enabled_adaptive;
 
       if( vg.vsync_feature != requested ){
          vg_info( "Setting swap interval\n" );
 
          int swap_interval = 1;
-         if( requested == k_vsync_feature_enabled_adaptive ) swap_interval = -1;
+         if( requested == k_vsync_feature_enabled_adaptive ) 
+            swap_interval = -1;
 
          if( SDL_GL_SetSwapInterval( swap_interval ) == -1 ){
             if( requested == k_vsync_feature_enabled ){
@@ -513,25 +519,24 @@ VG_STATIC int vg_framefilter( double dt )
             }
 
             vg.vsync_feature = k_vsync_feature_error;
-            vg.fps_limit = vg.display_refresh_rate;
-
+            vg.vsync = 0;
             /* TODO: Make popup to notify user that this happened */
-            return 1;
          }
          else{
             vg_success( "Vsync enabled (%d)\n", requested );
             vg.vsync_feature = requested;
          }
       }
-
-      return 0;
    }
-
-   if( vg.vsync_feature != k_vsync_feature_disabled ){
-      SDL_GL_SetSwapInterval( 0 );
-      vg.vsync_feature = k_vsync_feature_disabled;
+   else {
+      if( vg.vsync_feature != k_vsync_feature_disabled ){
+         SDL_GL_SetSwapInterval( 0 );
+         vg.vsync_feature = k_vsync_feature_disabled;
+      }
    }
-   
+}
+
+static int vg_framefilter( double dt ){
    if( vg.fps_limit < 25 ) vg.fps_limit = 25;
    if( vg.fps_limit > 300 ) vg.fps_limit = 300;
 
@@ -542,7 +547,10 @@ VG_STATIC int vg_framefilter( double dt )
       u32 ms = (u32)floor( sleep_ms );
 
       if( ms ){
-         SDL_Delay( ms );
+         if( !vg_loader_availible() )
+            SDL_Delay(1);
+         else
+            SDL_Delay(ms);
       }
       else{
          vg.time_spinning ++;
@@ -554,7 +562,7 @@ VG_STATIC int vg_framefilter( double dt )
    return 0;
 }
 
-VG_STATIC int _vg_crashscreen(void)
+static int _vg_crashscreen(void)
 {
 #if 0
    if( vg_getkey( SDLK_ESCAPE ) )
@@ -567,7 +575,7 @@ VG_STATIC int _vg_crashscreen(void)
    glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
    glBlendEquation(GL_FUNC_ADD);
 
-   glClearColor( 0.15f + sinf(vg.time)*0.1f, 0.0f, 0.0f,1.0f );
+   glClearColor( 0.15f + sinf(vg.time_real)*0.1f, 0.0f, 0.0f,1.0f );
    glClear( GL_COLOR_BUFFER_BIT );
    glViewport( 0,0, vg.window_x, vg.window_y );
 
@@ -576,8 +584,7 @@ VG_STATIC int _vg_crashscreen(void)
    return 0;
 }
 
-VG_STATIC void _vg_gameloop(void)
-{
+static void _vg_gameloop(void){
    //vg.time_fixed_accumulator = 0.75f * (1.0f/60.0f);
 
    vg.time_hp = SDL_GetPerformanceCounter();
@@ -585,7 +592,6 @@ VG_STATIC void _vg_gameloop(void)
 
    int post_start = 0;
    while(1){
-   
       vg.time_hp = SDL_GetPerformanceCounter();
       u64 udt = vg.time_hp - vg.time_hp_last;
       vg.time_hp_last = vg.time_hp;
@@ -593,20 +599,23 @@ VG_STATIC void _vg_gameloop(void)
       double dt = (double)udt / (double)SDL_GetPerformanceFrequency();
 
       vg.time_frame_delta += dt;
+      vg_run_async_checked();
 
       if( vg_framefilter( dt ) )
          continue;
 
+      vg_changevsync();
+
       vg_profile_begin( &vg_prof_swap );
       SDL_GL_SwapWindow( vg.window );
       vg_profile_end( &vg_prof_swap );
 
       enum engine_status status = _vg_engine_status();
 
+      vg.time_real += vg.time_frame_delta;
       vg.time_delta = vg.time_frame_delta * vg.time_rate;
       vg.time += vg.time_delta;
 
-      vg_run_async_checked();
       _vg_process_events();
 
       if( vg.window_should_close )
@@ -627,8 +636,8 @@ VG_STATIC void _vg_gameloop(void)
       }
 
       if( vg.loader_ring > 0.01f ){
-         vg.loader_ring -= vg.time_frame_delta * 0.5f;
          _vg_loader_render_ring( vg.loader_ring );
+         vg.loader_ring -= vg.time_frame_delta * 0.5f;
       }
 
       vg.time_frame_delta = 0.0;
@@ -636,7 +645,7 @@ VG_STATIC void _vg_gameloop(void)
    }
 }
 
-VG_STATIC void _vg_process_launch_opts_internal( int argc, char *argv[] )
+static void _vg_process_launch_opts_internal( int argc, char *argv[] )
 {
    char *arg;
    while( vg_argp( argc, argv ) ){
@@ -664,7 +673,7 @@ VG_STATIC void _vg_process_launch_opts_internal( int argc, char *argv[] )
    }
 }
 
-VG_STATIC void _vg_init_window( const char *window_name )
+static void _vg_init_window( const char *window_name )
 {
    vg_info( "SDL_INIT\n" );
 
@@ -673,9 +682,20 @@ VG_STATIC void _vg_init_window( const char *window_name )
       exit(0);
    }
 
+#ifndef VG_NO_AUDIO
    SDL_InitSubSystem( SDL_INIT_AUDIO );
+#endif
    SDL_InitSubSystem( SDL_INIT_GAMECONTROLLER );
 
+   char *exe_basepath = SDL_GetBasePath();
+   u32 len = vg_align8( strlen(exe_basepath)+1 );
+   char *dest  = vg_linear_alloc( vg_mem.rtmemory, len );
+   strcpy( dest, exe_basepath );
+   SDL_free( exe_basepath );
+   vg.base_path = dest;
+
+   vg_info( "Basepath: %s\n", vg.base_path );
+
    SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
    SDL_GL_SetAttribute( SDL_GL_CONTEXT_MAJOR_VERSION, 3 );
    SDL_GL_SetAttribute( SDL_GL_CONTEXT_MINOR_VERSION, 3 );
@@ -699,11 +719,6 @@ VG_STATIC void _vg_init_window( const char *window_name )
        display_index = 0, 
        mode_index = 0;
 
-#ifdef VG_DEVWINDOW
-   vg.window_x = 1600;
-   vg.window_y = 1000;
-#else
-
    SDL_DisplayMode video_mode;
    if( SDL_GetDesktopDisplayMode( display_index, &video_mode ) ){
       vg_error( "SDL_GetDesktopDisplayMode failed: %s\n", SDL_GetError() );
@@ -714,6 +729,10 @@ VG_STATIC void _vg_init_window( const char *window_name )
    vg.display_refresh_rate = video_mode.refresh_rate;
    vg.window_x = video_mode.w;
    vg.window_y = video_mode.h;
+
+#ifdef VG_DEVWINDOW
+   vg.window_x = 1200;
+   vg.window_y = 880;
 #endif
 
 #ifndef _WIN32
@@ -730,8 +749,10 @@ VG_STATIC void _vg_init_window( const char *window_name )
 
 #ifdef VG_DEVWINDOW
          0, 0, vg.window_x, vg.window_y, 
-         SDL_WINDOW_BORDERLESS|SDL_WINDOW_OPENGL
-      ))){}
+         SDL_WINDOW_BORDERLESS|SDL_WINDOW_OPENGL|SDL_WINDOW_INPUT_GRABBED
+      ))){
+      SDL_SetWindowPosition( vg.window, video_mode.w-vg.window_x, 0 );
+   }
 #else
                                      0, 0,
                                      vg.window_x, vg.window_y,
@@ -757,6 +778,9 @@ VG_STATIC void _vg_init_window( const char *window_name )
 
    vg_info( "CreateContext\n" );
 
+   /* ????? */
+   if( SDL_IsTextInputActive() ) SDL_StopTextInput();
+
    /* 
     * OpenGL loading 
     */
@@ -794,17 +818,15 @@ VG_STATIC void _vg_init_window( const char *window_name )
    }
 
    vg_info( "Display refresh rate: %d\n", dispmode.refresh_rate );
-
-#ifdef _WIN32
    vg.fps_limit = vg.display_refresh_rate;
+
+#if defined(_WIN32) || defined(VG_DEVWINDOW)
 #else
-   /* request vsync by default on linux to avoid screen tearing.
-    * this does have its own issues with compositing on X11. */
-   vg.fps_limit = 0;
+   //vg.vsync = 1;
 #endif
 }
 
-VG_STATIC void _vg_terminate(void)
+static void _vg_terminate(void)
 {
    /* Shutdown */
    _vg_console_write_persistent();
@@ -822,8 +844,8 @@ VG_STATIC void _vg_terminate(void)
    exit(0);
 }
 
-VG_STATIC void vg_enter( int argc, char *argv[], const char *window_name )
-{
+static void vg_enter( int argc, char *argv[], const char *window_name ){
+   vg_rand_seed( &vg.rand, 461 );
    _vg_process_launch_opts_internal( argc, argv );
 
    /* Systems init */
@@ -831,13 +853,11 @@ VG_STATIC void vg_enter( int argc, char *argv[], const char *window_name )
    _vg_console_init();
    
    vg_console_reg_var( "fps_limit", &vg.fps_limit, k_var_dtype_i32, 0 );
+   vg_console_reg_var( "vsync", &vg.vsync, k_var_dtype_i32, VG_VAR_PERSISTENT );
    _vg_init_window( window_name );
 
    vg_async_init();
-   
-#ifndef VG_DEVWINDOW
    SDL_SetRelativeMouseMode(1);
-#endif
 
    vg.thread_id_main = SDL_GetThreadID(NULL);
    
@@ -848,16 +868,16 @@ VG_STATIC void vg_enter( int argc, char *argv[], const char *window_name )
    vg.engine_status = k_engine_status_load_internal;
 
    _vg_opengl_sync_init();
-    vg_loader_start( _vg_load_full );
+    vg_loader_start( _vg_load_full, NULL );
    _vg_gameloop();
    _vg_terminate();
 }
 
-VG_STATIC void vg_fatal_error( const char *fmt, ... )
+static void vg_fatal_error( const char *fmt, ... )
 {
    va_list args;
    va_start( args, fmt );
-   _vg_log_write( stderr, KRED "  fatal" KWHT "| " KRED, fmt, args );
+   _vg_logx_va( stderr, NULL, "fatal", KRED, fmt, args );
    va_end( args );
 
    vg_print_backtrace();
@@ -878,11 +898,11 @@ VG_STATIC void vg_fatal_error( const char *fmt, ... )
 #else /* VG_GAME */
 
 #include "vg_log.h"
-VG_STATIC void vg_fatal_error( const char *fmt, ... )
+static void vg_fatal_error( const char *fmt, ... )
 {
    va_list args;
    va_start( args, fmt );
-   _vg_log_write( stderr, KRED "  fatal" KWHT "| " KRED, fmt, args );
+   _vg_logx_va( stderr, NULL, "fatal", KRED, fmt, args );
    va_end( args );
    exit(0);
 }
@@ -895,4 +915,6 @@ VG_STATIC void vg_fatal_error( const char *fmt, ... )
 u32 NvOptimusEnablement = 0x00000001;
 int AmdPowerXpressRequestHighPerformance = 1;
 
+#include "vg_log.c"
+
 #endif /* VG_HEADER_H */