Kayne Ruse
103 lines
2.5 KiB
C++
103 lines
2.5 KiB
C++
/* Copyright: (c) Kayne Ruse 2013-2015
|
|
*
|
|
* This software is provided 'as-is', without any express or implied
|
|
* warranty. In no event will the authors be held liable for any damages
|
|
* arising from the use of this software.
|
|
*
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
* including commercial applications, and to alter it and redistribute it
|
|
* freely, subject to the following restrictions:
|
|
*
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
* claim that you wrote the original software. If you use this software
|
|
* in a product, an acknowledgment in the product documentation would be
|
|
* appreciated but is not required.
|
|
*
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software.
|
|
*
|
|
* 3. This notice may not be removed or altered from any source
|
|
* distribution.
|
|
*/
|
|
#include "sprite_sheet.hpp"
|
|
|
|
#include <stdexcept>
|
|
#include <sstream>
|
|
|
|
void SpriteSheet::Update(double delta) {
|
|
if (delay && (tick += delta) >= delay) {
|
|
if (++xIndex >= xCount) {
|
|
xIndex = 0;
|
|
}
|
|
tick = 0;
|
|
}
|
|
image.SetClipX(xIndex * image.GetClipW());
|
|
image.SetClipY(yIndex * image.GetClipH());
|
|
}
|
|
|
|
SDL_Surface* SpriteSheet::LoadSurface(std::string fname, Uint16 xCellCount, Uint16 yCellCount) {
|
|
image.LoadSurface(fname);
|
|
|
|
xCount = xCellCount;
|
|
yCount = yCellCount;
|
|
|
|
image.SetClipW(image.GetSurface()->w / xCount);
|
|
image.SetClipH(image.GetSurface()->h / yCount);
|
|
|
|
xIndex = yIndex = 0;
|
|
delay = tick = 0.0;
|
|
}
|
|
|
|
SDL_Surface* SpriteSheet::SetSurface(SDL_Surface* surface, Uint16 xCellCount, Uint16 yCellCount) {
|
|
image.SetSurface(surface);
|
|
|
|
xCount = xCellCount;
|
|
yCount = yCellCount;
|
|
|
|
image.SetClipW(image.GetSurface()->w / xCount);
|
|
image.SetClipH(image.GetSurface()->h / yCount);
|
|
|
|
xIndex = yIndex = 0;
|
|
delay = tick = 0.0;
|
|
}
|
|
|
|
void SpriteSheet::FreeSurface() {
|
|
image.FreeSurface();
|
|
xCount = yCount = 0;
|
|
xIndex = yIndex = 0;
|
|
delay = tick = 0.0;
|
|
}
|
|
|
|
Uint16 SpriteSheet::SetXCount(Uint16 i) {
|
|
xIndex = 0;
|
|
return xCount = i;
|
|
}
|
|
|
|
Uint16 SpriteSheet::SetYCount(Uint16 i) {
|
|
yIndex = 0;
|
|
return yCount = i;
|
|
}
|
|
|
|
Uint16 SpriteSheet::SetXIndex(Uint16 i) {
|
|
if (i > xCount) {
|
|
std::ostringstream os;
|
|
os << "Cannot set x index to " << i;
|
|
throw(std::invalid_argument(os.str()));
|
|
}
|
|
return xIndex = i;
|
|
}
|
|
|
|
Uint16 SpriteSheet::SetYIndex(Uint16 i) {
|
|
if (i > yCount) {
|
|
std::ostringstream os;
|
|
os << "Cannot set y index to " << i;
|
|
throw(std::invalid_argument(os.str()));
|
|
}
|
|
return yIndex = i;
|
|
}
|
|
|
|
double SpriteSheet::SetDelay(double d) {
|
|
tick = 0;
|
|
return delay = d;
|
|
}
|