This repository has been archived on 2026-04-30. You can view files and clone it. You cannot open issues or pull requests or push a commit.
Files
Tortuga/common/graphics/tile_sheet.cpp
T
Kayne Ruse b47191a0c1 Fixed a horrible region coordinate bug
Coordinates are supposed to be stored by their x & y, but the sizes of the
tile sheets were getting mixed in as well. When trying to store a region
at (0, 20), it was being stored at (0, 260).

Another visual bug inside the tile sheet's rendering function masked this
issue until now.

Another thing to note is that I've removed an incredibly complex system
for updating the client's map. The new system may seem complex at first,
but it is straight forward compared to what it replaced.

I've also fixed a few logarithmic lagging points in the code.
2014-04-21 03:56:48 +10:00

61 lines
2.0 KiB
C++

/* Copyright: (c) Kayne Ruse 2014
*
* 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 "tile_sheet.hpp"
void TileSheet::Load(std::string fname, int xc, int yc) {
XCount = xc;
YCount = yc;
image.LoadSurface(fname);
image.SetClipW(image.GetClipW()/XCount);
image.SetClipH(image.GetClipH()/YCount);
}
void TileSheet::Unload() {
image.FreeSurface();
XCount = YCount = 0;
}
void TileSheet::DrawTo(SDL_Surface* const dest, int x, int y, Region::type_t tile) {
//0 is invisible
if (tile == 0) return;
image.SetClipX((tile-1) % XCount * image.GetClipW());
image.SetClipY((tile-1) / XCount * image.GetClipH());
image.DrawTo(dest, x, y);
}
void TileSheet::DrawRegionTo(SDL_Surface* const dest, Region* const region, int camX, int camY) {
Region::type_t tile = 0;
for (register int i = 0; i < REGION_WIDTH; ++i) {
for (register int j = 0; j < REGION_HEIGHT; ++j) {
for (register int k = 0; k < REGION_DEPTH; ++k) {
tile = region->GetTile(i, j, k);
//0 is invisible
if (tile == 0) continue;
image.SetClipX((tile-1) % XCount * image.GetClipW());
image.SetClipY((tile-1) / XCount * image.GetClipH());
image.DrawTo(dest,
(region->GetX() + i) * image.GetClipW() - camX,
(region->GetY() + j) * image.GetClipH() - camY);
}
}
}
}