Kayne Ruse
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/* Copyright: (c) Kayne Ruse 2014
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#include "tile_sheet.hpp"
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void TileSheet::Load(std::string fname, int xc, int yc) {
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XCount = xc;
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YCount = yc;
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image.LoadSurface(fname);
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image.SetClipW(image.GetClipW()/XCount);
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image.SetClipH(image.GetClipH()/YCount);
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}
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void TileSheet::Unload() {
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image.FreeSurface();
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XCount = YCount = 0;
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}
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void TileSheet::DrawTo(SDL_Surface* const dest, int x, int y, Region::type_t tile) {
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//0 is invisible
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if (tile == 0) return;
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image.SetClipX((tile-1) % XCount * image.GetClipW());
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image.SetClipY((tile-1) / XCount * image.GetClipH());
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image.DrawTo(dest, x, y);
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}
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void TileSheet::DrawRegionTo(SDL_Surface* const dest, Region* const region, int camX, int camY) {
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Region::type_t tile = 0;
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for (register int i = 0; i < REGION_WIDTH; ++i) {
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for (register int j = 0; j < REGION_HEIGHT; ++j) {
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for (register int k = 0; k < REGION_DEPTH; ++k) {
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tile = region->GetTile(i, j, k);
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//0 is invisible
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if (tile == 0) continue;
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image.SetClipX((tile-1) % XCount * image.GetClipW());
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image.SetClipY((tile-1) / XCount * image.GetClipH());
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image.DrawTo(dest,
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region->GetX() + i * image.GetClipW() - camX,
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region->GetY() + j * image.GetClipH() - camY);
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}
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}
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}
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} |