irrlicht/source/Irrlicht/CGUISpriteBank.cpp

129 lines
2.5 KiB
C++

#include "CGUISpriteBank.h"
#ifdef _IRR_COMPILE_WITH_GUI_
#include "IGUIEnvironment.h"
#include "IVideoDriver.h"
#include "ITexture.h"
namespace irr
{
namespace gui
{
CGUISpriteBank::CGUISpriteBank(IGUIEnvironment* env) :
Environment(env), Driver(0)
{
if (Environment)
{
Driver = Environment->getVideoDriver();
if (Driver)
Driver->grab();
}
}
CGUISpriteBank::~CGUISpriteBank()
{
// drop textures
for (u32 i=0; i<Textures.size(); ++i)
if (Textures[i])
Textures[i]->drop();
// drop video driver
if (Driver)
Driver->drop();
}
core::array< core::rect<s32> >& CGUISpriteBank::getPositions()
{
return Rectangles;
}
core::array< SGUISprite >& CGUISpriteBank::getSprites()
{
return Sprites;
}
u32 CGUISpriteBank::getTextureCount()
{
return Textures.size();
}
video::ITexture* CGUISpriteBank::getTexture(u32 index)
{
if (index < Textures.size())
return Textures[index];
else
return 0;
}
void CGUISpriteBank::addTexture(video::ITexture* texture)
{
if (texture)
texture->grab();
Textures.push_back(texture);
}
void CGUISpriteBank::setTexture(u32 index, video::ITexture* texture)
{
while (index > Textures.size())
Textures.push_back(0);
if (Textures[index])
Textures[index]->drop();
if (texture)
texture->grab();
Textures[index] = texture;
}
//! draws a sprite in 2d with scale and color
void CGUISpriteBank::draw2DSprite(u32 index, const core::position2di& pos,
const core::rect<s32>* clip, const video::SColor& color,
u32 starttime, u32 currenttime, bool loop, bool center)
{
if (index >= Sprites.size() || Sprites[index].Frames.empty())
return;
// work out frame number
u32 frame = 0;
if (Sprites[index].frameTime)
{
u32 f = ((currenttime - starttime) / Sprites[index].frameTime);
if (loop)
frame = f % Sprites[index].Frames.size();
else
frame = (f >= Sprites[index].Frames.size()) ? Sprites[index].Frames.size() : f;
}
video::ITexture* tex = Textures[Sprites[index].Frames[frame].textureNumber];
if (!tex)
return;
u32 rn = Sprites[index].Frames[frame].rectNumber;
if (rn >= Rectangles.size())
return;
core::rect<s32> &r = Rectangles[rn];
if (center)
{
core::position2di p = pos;
p -= r.getSize() / 2;
Driver->draw2DImage(tex, p, r, clip, color, true);
}
else
{
Driver->draw2DImage(tex, pos, r, clip, color, true);
}
}
} // namespace gui
} // namespace irr
#endif // _IRR_COMPILE_WITH_GUI_