How can i solve it?(draw

How can i solve it?(draw_bitmap)

foretion

Member #17,091

June 2019

#SelectExpand
 1movement_character(user_player._player, pos_x+50, pos_y+50, player_direction, action_idx); // user_player._player is ALLEGRO_BITMAP* and initialized with al_load_bitmp(..);

#SelectExpand
  1void movement_character(ALLEGRO_BITMAP* bitmap, int dx, int dy, int action_type, int action_idx) {
al_set_target_bitmap(al_get_backbuffer(al_get_current_display()));
int sx = character_movement[action_type][action_idx][0] * 16;
int sy = character_movement[action_type][action_idx][1] * 16;
int sw = character_movement[action_type][action_idx][2] * 16;
int sh = character_movement[action_type][action_idx][3] * 16;
  7
//al_draw_bitmap_region(bitmap, sx, sy, sw, sh, dx, dy, 0);
ALLEGRO_COLOR tint = al_map_rgb(255, 255, 255);
al_draw_tinted_scaled_rotated_bitmap_region(bitmap, sx, sy, sw, sh, tint, 0, 0, dx, dy, GAME_SCALE, GAME_SCALE, 0, 0); // on error

i wrote code.
but show errors..

--------
Assertion failed!

Program: ...nts\projects\nginx\x64\Debug\allegro-debug-5.2.dll
File: C:\dev\allegro_winpkg\universal\all...\transfo...tions.c
Line: 32

Expression: src

For information on how your program can cause an assertion
failure, see the Visual C++ documentation on asserts
--------

what should i check?

Edgar Reynaldo

Major Reynaldo

May 2007

For some reason your bitmap is NULL.

Make sure it loaded correctly, and that you're not destroying it early.

Eagle and Allegro 5 binaries | Older Allegro 4 and 5 binaries | Allegro 5 compile guide
King Piccolo will make it so Then I could just flip it with some sweet, sweet matrix math. In either case, I’ll ride this wagon until the wheels fall off. Thanks to those that keep it running

foretion

Member #17,091

June 2019

#SelectExpand
  1void movement_character(ALLEGRO_BITMAP* bitmap, int dx, int dy, int action_type, int action_idx) {
  2  al_set_target_bitmap(al_get_backbuffer(al_get_current_display()));
  3  int sx = character_movement[action_type][action_idx][0] * 16;
  4  int sy = character_movement[action_type][action_idx][1] * 16;
  5  int sw = character_movement[action_type][action_idx][2] * 16;
  6  int sh = character_movement[action_type][action_idx][3] * 16;
  7
  8  //al_draw_bitmap_region(bitmap, sx, sy, sw, sh, dx, dy, 0);
  9  ALLEGRO_COLOR tint = al_map_rgb(255, 255, 255);
 10  al_draw_tinted_scaled_rotated_bitmap_region(al_load_bitmap("gfx/character.png"), sx, sy, sw, sh, tint, 0, 0, dx, dy, GAME_SCALE, GAME_SCALE, 0, 0); // direct al_load_bitmap
 11}

the same problem occurs in the this code.
and bitmap is not NULL

-----------
in main.c ( work )
movement_character(.....);

but,

in sock_client_framework.c ( error )
movement_character(.....);

Edgar Reynaldo

Major Reynaldo

May 2007

Most likely you're using a shadowed variable instead of an extern one.

Show more code, like where you declare and define the bitmap objects.

EDIT
Wait, I didn't see the difference between code at first.

If the bitmap is NULL on loading, then you have a problem with the current working directory or filename.

foretion

Member #17,091

June 2019

sock_client_framework.c

#SelectExpand
  1// receive packet . . .. 
  2else if (strcmp(ContentType, "PLAYER") == 0)
  {
    const char* userName = json_string_value(json_array_get(pData, 0));
    if (strcmp(user_player.cName, userName) == 0)
    {
      // get player data from jsonData
      const int action_type = json_integer_value(json_array_get(pData, 1));
      const int player_direction = json_integer_value(json_array_get(pData, 2));
      const int action_idx = json_integer_value(json_array_get(pData, 3));
      const int pos_x = json_integer_value(json_array_get(pData, 4));
      const int pos_y = json_integer_value(json_array_get(pData, 5));
      const int hp = json_integer_value(json_array_get(pData, 6));
      const int armor = json_integer_value(json_array_get(pData, 7));
      const int buf = json_integer_value(json_array_get(pData, 8));
 16
      ALLEGRO_BITMAP* user_bitmap = al_load_bitmap("gfx/character.png");
      //ALLEGRO_BITMAP* hit_efftect = al_load_bitmap("gfx/hit_effect.png");
 19
      movement_character(al_load_bitmap("gfx/character.png"), pos_x+50, pos_y+50, player_direction, action_idx);

on ERROR.

but main.c

#SelectExpand
 1user_player._player = al_load_bitmap("gfx/character.png");
 2// iPos_x, iPos_y .. other parameters initialized too.
 3movement_character(user_player._player, user_player.iPos_x, user_player.iPos_y, user_player.iPlayer_direction, user_player.iAction_idx);

worked.

and currently movement_character function in player.c

#SelectExpand
  1void movement_character(ALLEGRO_BITMAP* bitmap, int dx, int dy, int action_type, int action_idx) {
  2  al_set_target_bitmap(al_get_backbuffer(al_get_current_display()));
  3  int sx = character_movement[action_type][action_idx][0] * 16;
  4  int sy = character_movement[action_type][action_idx][1] * 16;
  5  int sw = character_movement[action_type][action_idx][2] * 16;
  6  int sh = character_movement[action_type][action_idx][3] * 16;
  7
  8  al_draw_bitmap_region(bitmap, sx, sy, sw, sh, dx, dy, 0);
  9  //ALLEGRO_COLOR tint = al_map_rgb(255, 255, 255);
 10  //al_draw_tinted_scaled_rotated_bitmap_region(bitmap, sx, sy, sw, sh, tint, 0, 0, dx, dy, GAME_SCALE, GAME_SCALE, 0, 0);
 11}

:-/

------------

so...Could this be a problem?

#SelectExpand
  1// receive packet . . .. 
  2else if (strcmp(ContentType, "PLAYER") == 0)
  {
    const char* userName = json_string_value(json_array_get(pData, 0));
    if (strcmp(user_player.cName, userName) == 0)
    {
      // get player data from jsonData
      const int action_type = json_integer_value(json_array_get(pData, 1));
      const int player_direction = json_integer_value(json_array_get(pData, 2));
      const int action_idx = json_integer_value(json_array_get(pData, 3));
      const int pos_x = json_integer_value(json_array_get(pData, 4));
      const int pos_y = json_integer_value(json_array_get(pData, 5));
      const int hp = json_integer_value(json_array_get(pData, 6));
      const int armor = json_integer_value(json_array_get(pData, 7));
      const int buf = json_integer_value(json_array_get(pData, 8));
 16
      ALLEGRO_BITMAP* user_bitmap = al_load_bitmap("gfx/character.png");
      //ALLEGRO_BITMAP* hit_efftect = al_load_bitmap("gfx/hit_effect.png");
 19
      movement_character(al_load_bitmap("gfx/character.png"), pos_x+50, pos_y+50, player_direction, action_idx);

code is in void __cdecl RecvThread(void* p);

and RecvThread called with beginthread.

#SelectExpand
 1_beginthread(RecvThread, 0, (void*)serv_sock);

Edgar Reynaldo

Major Reynaldo

May 2007

Can you post a zip file of your source code and resources please?

It's failing an assertion inside transformations.c in al_copy_transform where the source transform is NULL.

I need to debug this to know exactly why.

I'm guessing it's something to do with threading and displays but I can't say for sure.

foretion

Member #17,091

June 2019

Oh i solved that.

I fixed that implement Without Thread.

But i have other problem.....:(

Edgar Reynaldo

Major Reynaldo

May 2007

You can make another post or you can just add it here.