Moved some common/* files into directories

common/map/region.cpp

@@ -0,0 +1,123 @@
+/* Copyright: (c) Kayne Ruse 2013
+ * 
+ * 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 "region.hpp"
+
+#include "utility.hpp"
+
+#include <stdexcept>
+#include <sstream>
+
+Region::Region(int _x, int _y, int _w, int _h):
+	x(_x),
+	y(_y),
+	width(_w),
+	height(_h)
+{
+	//make sure that the region's position lines up
+	if (x != snapToBase(width, x) || y != snapToBase(height, y)) {
+		std::ostringstream os;
+		os << "Region is unaligned; x: " << x << ", y: " << y << ", width: " << width << ", height: " << height;
+		throw(std::runtime_error(os.str()));
+	}
+}
+
+int Region::NewTileR(Tile const& tile) {
+	//return 1 for overwrite, 0 for insert
+	if (!InBoundsR(tile.x, tile.y)) {
+		std::ostringstream os;
+		os << "New tile location out of bounds: " <<
+			"(" << x << "," << y << ")->" <<
+			"(" << tile.x << "," << tile.y << ")"
+		;
+		throw(std::runtime_error(os.str()));
+	}
+
+	int ret = tiles.erase(tile);
+	tiles.insert(tile);
+	return ret;
+}
+
+Tile Region::GetTileR(int tx, int ty, int minDepth) {
+	std::set<Tile>::iterator ptr = tiles.begin();
+
+	//skip the tiles that are too deep
+	while(ptr != tiles.end()) {
+		if (ptr->depth >= minDepth) {
+			break;
+		}
+		ptr++;
+	}
+
+	//find the first tile here
+	while(ptr != tiles.end()) {
+		//bounds
+		if ((ptr->x <= tx) && (ptr->y <= ty) && (ptr->x + ptr->width > tx) && (ptr->y + ptr->height > ty)) {
+			break;
+		}
+		ptr++;
+	}
+
+	//found it
+	if (ptr != tiles.end()) {
+		return *ptr;
+	}
+
+	//a tileIndex of -1 is an error code, the rest is for show
+	return {0,0,0,-1,-1,-1};
+}
+
+int Region::DeleteTileR(Tile const& tile) {
+	if (!InBoundsR(tile.x, tile.y)) {
+		throw(std::runtime_error("Deleted tile location out of bounds"));
+
+		std::ostringstream os;
+		os << "Deleted tile location out of bounds: " <<
+			"(" << x << "," << y << ")->" <<
+			"(" << tile.x << "," << tile.y << ")"
+		;
+		throw(std::runtime_error(os.str()));
+	}
+	//sentinel/error code
+	if (tile.tileIndex == -1) {
+		return 0;
+	}
+	return tiles.erase(tile);
+}
+
+bool operator<(Region const& lhs, Region const& rhs) {
+	//sort by y -> x
+	if (lhs.y == rhs.y) {
+		return lhs.x < rhs.x;
+	}
+	return lhs.y < rhs.y;
+}
+
+inline bool operator>(Region const& lhs, Region const& rhs) {
+	//wrap the other operator
+	return rhs < lhs;
+}
+
+inline bool operator==(Region const& lhs, Region const& rhs) {
+	//comparisons work on the location ONLY
+	//this function is redundant as far as the std::set object is concerned
+	return (lhs.x == rhs.x) && (lhs.y == rhs.y);
+}