Sprite drawing problem
Posted: Sat Feb 24, 2007 7:56 pm
I have a sprite class setup which holds all my sprite data: position, texture-sheet, all that jazz. And a method that draws the sprite. This is the method:
this method gets called inside my main method when a key is hit (it is initially set to 0 so default is used). Depending on the key, a different sprite object is used (up, down, left, right). The object calls a mothod in my player class called draw which simply picks the sprite to draw (i dont think this is the problem so i won't post the code, please tell me if that is necessary) then calls the actual draw method above. The method checks if the sprite should be animated or not depending on the idl variable. if its false then it is animated. Using a timer, a check is made to see if enough time has elapsed. If so then frame_count increments. frame_count is used to determine which frame should be drawn. This seems like a logical way to do this but nothing is drawn, so I would like some help if anyone can spare some time.
thanks is advance.
(I am using irrlicht 1.1 and codeblocks, the lib for the timer is libwinmm.a)
Code: Select all
void CSprite::drawSprite(video::IVideoDriver* driver, bool idl)
{
static int current_frame = 0;
core::rect<s32> spriteRect(0+32*current_frame, 0, 32*(current_frame+1), 32);
video::ITexture* sprite = getSpriteSheet();
if(idl == false)
{
if(nextFrame())
{
driver->draw2DImage(sprite, core::position2d<s32>(s_x + 32, s_y + 32),
spriteRect, 0, video::SColor(255,255,255,255), true);
current_frame++;
}
else
{
driver->draw2DImage(sprite, core::position2d<s32>(s_x + 32, s_y + 32),
spriteRect, 0, video::SColor(255,255,255,255), true);
}
}else
{
driver->draw2DImage(sprite, core::position2d<s32>(s_x + 32, s_y + 32),
core::rect<s32>(0,0,32,32), 0, video::SColor(255,255,255,255), true);
}
if(current_frame >= MAX_FRAMES)
{
current_frame = 0;
}
}Code: Select all
int main()
{
MyEventReceiver receiver;
IrrlichtDevice *device = createDevice(EDT_OPENGL,
core::dimension2d<s32>(windowx, windowy),32,false,false,false,&receiver);
if (device == 0)
return 1;
video::IVideoDriver* driver = device->getVideoDriver();
if(driver == NULL)
return 1;
env = device->getGUIEnvironment();
if(!player->loadSprites(driver, device))
{
QUIT = true;
}
while(device->run()&&!QUIT)
{
if(device->isWindowActive())
{
driver->beginScene(true, false, video::SColor(0,0,0,0));
env->drawAll();
switch(index)
{
case 87:
player->move_player(1);
player->draw(driver, false);
break;
case 83:
player->move_player(2);
player->draw(driver, false);
break;
case 65:
player->move_player(3);
player->draw(driver, false);
break;
case 68:
player->move_player(4);
player->draw(driver, false);
break;
default:
player->draw(driver, true);
break;
};
}
}
device->drop();
return 0;
}this method gets called inside my main method when a key is hit (it is initially set to 0 so default is used). Depending on the key, a different sprite object is used (up, down, left, right). The object calls a mothod in my player class called draw which simply picks the sprite to draw (i dont think this is the problem so i won't post the code, please tell me if that is necessary) then calls the actual draw method above. The method checks if the sprite should be animated or not depending on the idl variable. if its false then it is animated. Using a timer, a check is made to see if enough time has elapsed. If so then frame_count increments. frame_count is used to determine which frame should be drawn. This seems like a logical way to do this but nothing is drawn, so I would like some help if anyone can spare some time.
thanks is advance.
(I am using irrlicht 1.1 and codeblocks, the lib for the timer is libwinmm.a)
