Kayne Ruse
124 lines
3.2 KiB
C++
124 lines
3.2 KiB
C++
/* Copyright: (c) Kayne Ruse 2013
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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 "region.hpp"
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#include "utility.hpp"
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#include <stdexcept>
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#include <sstream>
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Region::Region(int _x, int _y, int _w, int _h):
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x(_x),
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y(_y),
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width(_w),
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height(_h)
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{
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//make sure that the region's position lines up
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if (x != snapToBase(width, x) || y != snapToBase(height, y)) {
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std::ostringstream os;
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os << "Region is unaligned; x: " << x << ", y: " << y << ", width: " << width << ", height: " << height;
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throw(std::runtime_error(os.str()));
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}
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}
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int Region::NewTileR(Tile const& tile) {
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//return 1 for overwrite, 0 for insert
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if (!InBoundsR(tile.x, tile.y)) {
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std::ostringstream os;
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os << "New tile location out of bounds: " <<
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"(" << x << "," << y << ")->" <<
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"(" << tile.x << "," << tile.y << ")"
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;
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throw(std::runtime_error(os.str()));
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}
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int ret = tiles.erase(tile);
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tiles.insert(tile);
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return ret;
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}
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Tile Region::GetTileR(int tx, int ty, int minDepth) {
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std::set<Tile>::iterator ptr = tiles.begin();
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//skip the tiles that are too deep
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while(ptr != tiles.end()) {
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if (ptr->depth >= minDepth) {
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break;
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}
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ptr++;
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}
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//find the first tile here
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while(ptr != tiles.end()) {
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//bounds
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if ((ptr->x <= tx) && (ptr->y <= ty) && (ptr->x + ptr->width > tx) && (ptr->y + ptr->height > ty)) {
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break;
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}
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ptr++;
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}
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//found it
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if (ptr != tiles.end()) {
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return *ptr;
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}
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//a tileIndex of -1 is an error code, the rest is for show
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return {0,0,0,-1,-1,-1};
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}
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int Region::DeleteTileR(Tile const& tile) {
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if (!InBoundsR(tile.x, tile.y)) {
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throw(std::runtime_error("Deleted tile location out of bounds"));
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std::ostringstream os;
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os << "Deleted tile location out of bounds: " <<
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"(" << x << "," << y << ")->" <<
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"(" << tile.x << "," << tile.y << ")"
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;
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throw(std::runtime_error(os.str()));
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}
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//sentinel/error code
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if (tile.tileIndex == -1) {
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return 0;
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}
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return tiles.erase(tile);
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}
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bool operator<(Region const& lhs, Region const& rhs) {
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//sort by y -> x
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if (lhs.y == rhs.y) {
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return lhs.x < rhs.x;
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}
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return lhs.y < rhs.y;
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}
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inline bool operator>(Region const& lhs, Region const& rhs) {
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//wrap the other operator
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return rhs < lhs;
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}
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inline bool operator==(Region const& lhs, Region const& rhs) {
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//comparisons work on the location ONLY
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//this function is redundant as far as the std::set object is concerned
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return (lhs.x == rhs.x) && (lhs.y == rhs.y);
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}
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