Moved common files (such as Codebase files) into their own directory

common/button.cpp

@@ -0,0 +1,96 @@
+/* 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 "button.hpp"
+
+#include <stdexcept>
+
+Button::Button():
+	Button(0,0, nullptr, nullptr)
+{
+}
+
+Button::Button(Sint16 i, Sint16 j, SDL_Surface* imageSurface, SDL_Surface* fontSurface, std::string s) {
+	x = i;
+	y = j;
+	state = State::NORMAL;
+
+	//graphical stuff
+	image.SetSurface(imageSurface);
+	image.SetClipH(image.GetClipH() / 3); //3 phases
+	font.SetSurface(fontSurface);
+
+	SetText(s);
+}
+
+Button::State Button::MouseMotion(SDL_MouseMotionEvent const& motion) {
+	if (motion.state & SDL_BUTTON_LMASK) {
+		return CalcState(motion.x, motion.y, true);
+	}
+	else {
+		return CalcState(motion.x, motion.y, false);
+	}
+	return state;
+}
+
+Button::State Button::MouseButtonDown(SDL_MouseButtonEvent const& button) {
+	if (button.button == SDL_BUTTON_LEFT) {
+		return CalcState(button.x, button.y, true);
+	}
+	return state;
+}
+
+Button::State Button::MouseButtonUp(SDL_MouseButtonEvent const& button) {
+	if (button.button == SDL_BUTTON_LEFT) {
+		return CalcState(button.x, button.y, false);
+	}
+	return state;
+}
+
+void Button::DrawTo(SDL_Surface* const dest) {
+	image.DrawTo(dest, x, y);
+	font.DrawStringTo(text, dest, textX, textY);
+}
+
+std::string Button::SetText(std::string s) {
+	//one line
+	text = s;
+	textX = (image.GetClipW() / 2 + x) - (font.GetClipW() * text.size() / 2);
+	textY = (image.GetClipH() / 2 + y) - (font.GetClipH() / 2);
+	return text;
+}
+
+Button::State Button::CalcState(Sint16 i, Sint16 j, bool leftPressed) {
+	if (i < x || i > (x + image.GetClipW()) ||
+		j < y || j > (y + image.GetClipH())
+		) {
+		image.SetClipY(0);
+		return state = State::NORMAL;
+	}
+	if (leftPressed) {
+		image.SetClipY(image.GetClipH()*2);
+		return state = State::PRESSED;
+	}
+	else {
+		image.SetClipY(image.GetClipH());
+		return state = State::HOVER;
+	}
+}

common/button.hpp

@@ -0,0 +1,78 @@
+/* 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.
+*/
+#ifndef BUTTON_HPP_
+#define BUTTON_HPP_
+
+#include "image.hpp"
+#include "raster_font.hpp"
+
+#include <string>
+
+//3-phases, no toggle, centred text
+class Button {
+public:
+	enum class State {
+		NORMAL, HOVER, PRESSED
+	};
+
+	Button();
+	Button(Sint16 x, Sint16 y, SDL_Surface* imageSurface, SDL_Surface* fontSurface, std::string text = "");
+
+	//return the current state
+	State MouseMotion(SDL_MouseMotionEvent const&);
+	State MouseButtonDown(SDL_MouseButtonEvent const&);
+	State MouseButtonUp(SDL_MouseButtonEvent const&);
+	State GetState() const {
+		return state;
+	}
+
+	//yet another draw function
+	void DrawTo(SDL_Surface* const);
+
+	//simple accessors and mutators
+	Sint16 SetX(Sint16 i) { return x = i; }
+	Sint16 SetY(Sint16 i) { return y = i; }
+	Sint16 GetX() const { return x; }
+	Sint16 GetY() const { return y; }
+
+	std::string SetText(std::string s);
+	std::string GetText() const { return text; }
+
+	//raw access, be careful
+	Image* GetImage() { return &image; }
+	RasterFont* GetFont() { return &font; }
+
+	//debug
+	Sint16 GetTextX() const { return textX; }
+	Sint16 GetTextY() const { return textY; }
+private:
+	State CalcState(Sint16 x, Sint16 y, bool leftPressed);
+
+	Sint16 x, y;
+	Sint16 textX, textY; //prevent recalc every loop
+	Image image;
+	RasterFont font;
+	State state;
+	std::string text;
+};
+
+#endif

common/config_utility.cpp

@@ -0,0 +1,76 @@
+/* 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 "config_utility.hpp"
+
+#include <stdexcept>
+#include <fstream>
+
+using namespace std;
+
+void ConfigUtility::Load(string fname) {
+	ifstream is(fname);
+
+	if (!is.is_open()) {
+		throw(runtime_error("Failed to open config file"));
+	}
+
+	string key, val;
+
+	for (;;) { //forever
+		//eat whitespace
+		while(isspace(is.peek()))
+			is.ignore();
+
+		//end of file
+		if (is.eof())
+			break;
+
+		//skip comment lines
+		if (is.peek() == '#') {
+			while(is.peek() != '\n' && !is.eof()) {
+				is.ignore();
+			}
+			continue;
+		}
+
+		//read in the pair
+		getline(is, key,'=');
+		getline(is, val);
+
+		//trim the strings at the start & end
+		while(key.size() && isspace(*key.begin())) key.erase(0, 1);
+		while(val.size() && isspace(*val.begin())) val.erase(0, 1);
+
+		while(key.size() && isspace(*(key.end()-1))) key.erase(key.end() - 1);
+		while(val.size() && isspace(*(val.end()-1))) val.erase(val.end() - 1);
+
+		//allow empty/wiped values
+		if (key.size() == 0) {
+			continue;
+		}
+
+		//save the pair
+		table[key] = val;
+	}
+
+	is.close();
+}

common/config_utility.hpp

@@ -0,0 +1,68 @@
+/* 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.
+*/
+#ifndef CONFIGUTILITY_HPP_
+#define CONFIGUTILITY_HPP_
+
+#include <map>
+#include <string>
+#include <cstdlib>
+
+class ConfigUtility {
+public:
+	ConfigUtility() {}
+	ConfigUtility(std::string s) { Load(s); }
+
+	void Load(std::string fname);
+
+	std::string String(std::string s) {
+		return table[s];
+	}
+	const char* CString(std::string s) {
+		return table[s].c_str();
+	}
+	int Integer(std::string s) {
+		return atoi(table[s].c_str());
+	}
+	double Double(std::string s) {
+		return atof(table[s].c_str());
+	}
+	bool Boolean(std::string s) {
+		return table[s] == "true";
+	}
+
+	std::string& operator[](std::string s) {
+		return table[s];
+	}
+	int Int(std::string s) {
+		return Integer(s);
+	}
+	int Bool(std::string s) {
+		return Boolean(s);
+	}
+	std::map<std::string, std::string>* GetMap() {
+		return &table;
+	}
+private:
+	std::map<std::string, std::string> table;
+};
+
+#endif

common/delta.hpp

@@ -0,0 +1,45 @@
+/* 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.
+*/
+#ifndef DELTA_HPP_
+#define DELTA_HPP_
+
+#include <ctime>
+
+class Delta {
+public:
+	Delta() {
+		time = tick = 0;
+	}
+	int Calculate() {
+		int c = clock();
+		time = c - tick;
+		tick = c;
+		return time;
+	}
+	int GetDelta() const {
+		return time;
+	};
+private:
+	int time, tick;
+};
+
+#endif

common/frame_rate.hpp

@@ -0,0 +1,50 @@
+/* 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.
+*/
+#ifndef FRAMERATE_HPP_
+#define FRAMERATE_HPP_
+
+#include <ctime>
+
+class FrameRate {
+public:
+	FrameRate() {
+		frameCount = lastFrameRate = tick = 0;
+	}
+	int Calculate() {
+		frameCount++;
+		if (clock() - tick >= CLOCKS_PER_SEC) {
+			lastFrameRate = frameCount;
+			frameCount = 0;
+			tick = clock();
+		}
+		return lastFrameRate;
+	}
+	int GetFrameRate() const {
+		return lastFrameRate;
+	}
+private:
+	int frameCount;
+	int lastFrameRate;
+	int tick;
+};
+
+#endif

common/image.cpp

@@ -0,0 +1,64 @@
+/* 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 "image.hpp"
+
+ Image::Image() {
+ 	SetSurface(nullptr);
+ }
+
+Image::Image(SDL_Surface* p) {
+	SetSurface(p);
+}
+
+Image::Image(SDL_Surface* p, SDL_Rect r) {
+	SetSurface(p, r);
+}
+
+SDL_Surface* Image::SetSurface(SDL_Surface* p) {
+	surface = p;
+	if (!surface) {
+		clip = {0, 0, 0, 0};
+	}
+	else {
+		clip = {0, 0, (Uint16)surface->w, (Uint16)surface->h};
+	}
+	return surface;
+}
+
+SDL_Surface* Image::SetSurface(SDL_Surface* const p, SDL_Rect r) {
+	surface = p;
+	clip = r;
+	return surface;
+}
+
+SDL_Surface* Image::GetSurface() const {
+	return surface;
+}
+
+void Image::DrawTo(SDL_Surface* dest, Sint16 x, Sint16 y) {
+	if (!surface) {
+		return;
+	}
+	SDL_Rect sclip = clip, dclip = {x,y};
+
+	SDL_BlitSurface(surface, &sclip, dest, &dclip);
+}

common/image.hpp

@@ -0,0 +1,58 @@
+/* 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.
+*/
+#ifndef IMAGE_HPP_
+#define IMAGE_HPP_
+
+#include "SDL/SDL.h"
+
+class Image {
+public:
+	Image();
+	Image(SDL_Surface*);
+	Image(SDL_Surface*, SDL_Rect);
+	virtual ~Image() {}
+
+	virtual SDL_Surface* SetSurface(SDL_Surface*);
+	virtual SDL_Surface* SetSurface(SDL_Surface*, SDL_Rect);
+	virtual SDL_Surface* GetSurface() const;
+
+	virtual void DrawTo(SDL_Surface* const, Sint16 x, Sint16 y);
+
+	//Clip handlers
+	virtual SDL_Rect SetClip(SDL_Rect r) { return clip = r; }
+	virtual SDL_Rect GetClip() const { return clip; }
+
+	virtual Sint16 SetClipX(Sint16 x) { return clip.x = x; }
+	virtual Sint16 SetClipY(Sint16 y) { return clip.y = y; }
+	virtual Uint16 SetClipW(Uint16 w) { return clip.w = w; }
+	virtual Uint16 SetClipH(Uint16 h) { return clip.h = h; }
+
+	virtual Sint16 GetClipX() const { return clip.x; }
+	virtual Sint16 GetClipY() const { return clip.y; }
+	virtual Uint16 GetClipW() const { return clip.w; }
+	virtual Uint16 GetClipH() const { return clip.h; }
+protected:
+	SDL_Surface* surface;
+	SDL_Rect clip;
+};
+
+#endif

common/makefile

@@ -0,0 +1,37 @@
+#config
+INCLUDES=
+CXXFLAGS+=-std=c++11 -DDEBUG $(addprefix -I,$(INCLUDES))
+LIB=
+
+#source
+SRC=$(wildcard *.cpp)
+
+#objects
+OBJDIR=obj
+OBJ=$(addprefix $(OBJDIR)/,$(SRC:.cpp=.o))
+
+#output
+OUTDIR=out
+OUT=$(addprefix $(OUTDIR)/,common.a)
+
+#targets
+all: $(OBJ) $(OUT)
+	ar -crs $(OUT) $(OBJ)
+
+$(OBJ): | $(OBJDIR)
+
+$(OUT): | $(OUTDIR)
+
+$(OBJDIR):
+	mkdir $(OBJDIR)
+
+$(OUTDIR):
+	mkdir $(OUTDIR)
+
+$(OBJDIR)/%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -c -o $@ $<
+
+clean:
+	$(RM) *.o *.a *.exe
+
+rebuild: clean all

common/raster_font.cpp

@@ -0,0 +1,53 @@
+/* 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 "raster_font.hpp"
+
+void RasterFont::DrawStringTo(std::string s, SDL_Surface* const dest, Sint16 x, Sint16 y) {
+	if (!surface) {
+		return;
+	}
+	//character size won't change here
+	const Sint16 w = surface->w/16;
+	const Sint16 h = surface->h/16;
+	SDL_Rect sclip, dclip = {x,y,0,0};
+	for (auto c : s) {
+		//TODO: inefficient
+		sclip = {Sint16(c%w*w), Sint16(c/h*h), clip.w, clip.h};
+//		sclip.x = c % w;
+//		sclip.h = c / h;
+//		sclip.w = clip.w;
+//		sclip.h = clip.h;
+		SDL_BlitSurface(surface, &sclip, dest, &dclip);
+		dclip.x += w;
+	}
+}
+
+SDL_Surface* RasterFont::SetSurface(SDL_Surface* p) {
+	surface = p;
+	if (!surface) {
+		clip = {0, 0, 0, 0};
+	}
+	else {
+		clip = {0, 0, Uint16(surface->w/16), Uint16(surface->h/16)};
+	}
+	return surface;
+}

common/raster_font.hpp

@@ -0,0 +1,43 @@
+/* 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.
+*/
+#ifndef RASTERFONT_HPP_
+#define RASTERFONT_HPP_
+
+#include "image.hpp"
+
+#include <string>
+
+class RasterFont : protected Image {
+public:
+	RasterFont() {}
+	RasterFont(SDL_Surface* p) {SetSurface(p);}
+	virtual ~RasterFont() {}
+	virtual void DrawStringTo(std::string, SDL_Surface* const, Sint16 x, Sint16 y);
+	virtual SDL_Surface* SetSurface(SDL_Surface*) override;
+
+	using Image::GetSurface;
+	using Image::GetClip;
+	using Image::GetClipW;
+	using Image::GetClipH;
+};
+
+#endif

common/sprite_sheet.cpp

@@ -0,0 +1,48 @@
+/* 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 "sprite_sheet.hpp"
+
+SpriteSheet::SpriteSheet(SDL_Surface* s, Uint16 w, Uint16 h)
+	: Image(s, {0, 0, w, h})
+{
+	currentFrame = 0; maxFrames = GetSurface()->w / GetClipW();
+	currentStrip = 0; maxStrips = GetSurface()->h / GetClipH();
+	interval = ticks = 0;
+}
+
+void SpriteSheet::Update(int delta) {
+	if (interval && (ticks += delta) > interval) {
+		if (++currentFrame >= maxFrames) {
+			currentFrame = 0;
+		}
+		ticks = 0;
+	}
+	SetClipX(currentFrame * GetClipW());
+	SetClipY(currentStrip * GetClipH());
+}
+
+void SpriteSheet::SetSurface(SDL_Surface* s, Uint16 w, Uint16 h) {
+	Image::SetSurface(s, {0, 0, w, h});
+	currentFrame = 0; maxFrames = GetSurface()->w / GetClipW();
+	currentStrip = 0; maxStrips = GetSurface()->h / GetClipH();
+	interval = ticks = 0;
+}

common/sprite_sheet.hpp

@@ -0,0 +1,65 @@
+/* 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.
+*/
+#ifndef SPRITESHEET_HPP_
+#define SPRITESHEET_HPP_
+
+#include "image.hpp"
+
+#include "SDL/SDL.h"
+
+class SpriteSheet : protected Image {
+public:
+	SpriteSheet(SDL_Surface*, Uint16 w, Uint16 h);
+	virtual ~SpriteSheet() {}
+
+	void Update(int delta);
+
+	void SetSurface(SDL_Surface*, Uint16 w, Uint16 h);
+
+	using Image::GetSurface;
+	using Image::DrawTo;
+
+	//TODO: these aren't regulated; be careful
+	int SetWidth(int i) { return SetClipW(i); };
+	int SetHeight(int i) { return SetClipH(i); };
+	int SetFrames(int i) { currentFrame = 0; return maxFrames = i; };
+	int SetStrips(int i) { currentStrip = 0; return maxStrips = i; };
+
+	int GetWidth() const { return GetClipW(); }
+	int GetHeight() const { return GetClipH(); }
+	int GetFrames() const { return maxFrames; }
+	int GetStrips() const { return maxStrips; }
+
+	int SetCurrentFrame(int i) { return currentFrame = i; };
+	int SetCurrentStrip(int i) { return currentStrip = i; };
+	int SetInterval(int i) { return interval = i; }
+
+	int GetCurrentFrame() const { return currentFrame; };
+	int GetCurrentStrip() const { return currentStrip; };
+	int GetInterval() const { return interval; };
+private:
+	int currentFrame, maxFrames;
+	int currentStrip, maxStrips;
+	int interval, ticks;
+};
+
+#endif

common/surface_manager.cpp

@@ -0,0 +1,89 @@
+/* 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 "surface_manager.hpp"
+
+#include <stdexcept>
+
+SurfaceManager::SurfaceManager() {
+	//
+}
+
+SurfaceManager::~SurfaceManager() {
+	FreeAll();
+}
+
+SDL_Surface* SurfaceManager::Load(std::string key, std::string fname) {
+	mapType::iterator it = surfaceMap.find(key);
+	if (it != surfaceMap.end()) {
+		throw(std::runtime_error(std::string("Surface already loaded: ") + key + std::string(", ") + fname));
+	}
+	return LoadSurface(key, fname);
+}
+
+SDL_Surface* SurfaceManager::Reload(std::string key, std::string fname) {
+	mapType::iterator it = surfaceMap.find(key);
+	if (it != surfaceMap.end()) {
+		SDL_FreeSurface(it->second);
+		surfaceMap.erase(it);
+	}
+	return LoadSurface(key, fname);
+}
+
+SDL_Surface* SurfaceManager::Get(std::string key) {
+	mapType::iterator it = surfaceMap.find(key);
+	if (it == surfaceMap.end()) {
+		throw(std::runtime_error(std::string("Could not find key: ") + key));
+	}
+	return it->second;
+}
+
+SDL_Surface* SurfaceManager::Set(std::string key, SDL_Surface* ptr) {
+	mapType::iterator it = surfaceMap.find(key);
+	if (it != surfaceMap.end()) {
+		throw(std::runtime_error(std::string("Key already exists: ") + key));
+	}
+	return surfaceMap[key] = ptr;
+}
+
+void SurfaceManager::Free(std::string key) {
+	mapType::iterator it = surfaceMap.find(key);
+	if (it != surfaceMap.end()) {
+		SDL_FreeSurface(it->second);
+		surfaceMap.erase(it);
+	}
+}
+
+void SurfaceManager::FreeAll() {
+	for (auto it : surfaceMap) {
+		SDL_FreeSurface(it.second);
+	}
+	surfaceMap.clear();
+}
+
+SDL_Surface* SurfaceManager::LoadSurface(std::string key, std::string fname) {
+	SDL_Surface* ptr = SDL_LoadBMP(fname.c_str());
+	if (ptr == nullptr) {
+		throw(std::runtime_error(std::string("Failed to load file: ") + fname));
+	}
+	SDL_SetColorKey(ptr, SDL_SRCCOLORKEY, SDL_MapRGB(ptr->format, 255, 0, 255)); //default
+	return surfaceMap[key] = ptr;
+}

common/surface_manager.hpp

@@ -0,0 +1,49 @@
+/* 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.
+*/
+#ifndef SURFACEMANAGER_HPP_
+#define SURFACEMANAGER_HPP_
+
+#include "SDL/SDL.h"
+
+#include <map>
+#include <string>
+
+class SurfaceManager {
+public:
+	SurfaceManager();
+	~SurfaceManager();
+
+	SDL_Surface* Load(std::string key, std::string fname);
+	SDL_Surface* Reload(std::string key, std::string fname);
+	SDL_Surface* Get(std::string key);
+	SDL_Surface* Set(std::string key, SDL_Surface* ptr);
+	void Free(std::string key);
+	void FreeAll();
+
+	SDL_Surface* operator[](std::string key) { return Get(key); };
+private:
+	SDL_Surface* LoadSurface(std::string key, std::string fname);
+	typedef std::map<std::string, SDL_Surface*> mapType;
+	mapType surfaceMap;
+};
+
+#endif

common/udp_network_utility.hpp

@@ -0,0 +1,52 @@
+#ifndef UDPNETWORKUTILITY_HPP_
+#define UDPNETWORKUTILITY_HPP_
+
+#include "SDL_net/SDL_net.h"
+
+class UDPNetworkUtility {
+public:
+	UDPNetworkUtility() = default;
+	~UDPNetworkUtility() = default;
+
+	void Open(int port, int packSize);
+	void Close();
+
+	//bind to an available channel
+	int Bind(const char* ip, int port) {
+		Bind(ip, port, -1);
+	}
+	int Bind(IPaddress add) {
+		Bind(add, -1);
+	}
+
+	//bind to certain channel
+	int Bind(const char* ip, int port, int channel);
+	int Bind(IPaddress add, int channel);
+	void Unbind(int channel);
+
+	IPaddress* GetIPAddress(int channel) {
+		return SDLNet_GetPeerAddress(socket, channel);
+	}
+
+	int Send(int channel, void* data, int len);
+	int Receive();
+
+	void* GetOutData() const {
+		return reinterpret_cast<void*>(packOut->data);
+	};
+	void* GetInData() const {
+		return reinterpret_cast<void*>(packIn->data);
+	};
+	void* GetOutPacket() const {
+		return packOut;
+	}
+	void* GetInPacket() const {
+		return packIn;
+	}
+private:
+	UDPsocket socket = nullptr;
+	UDPpacket* packOut = nullptr;
+	UDPpacket* packIn = nullptr;
+};
+
+#endif

common/vector2.hpp

@@ -0,0 +1,76 @@
+/* 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.
+*/
+#ifndef VECTOR2_HPP_
+#define VECTOR2_HPP_
+
+#include <stdexcept>
+#include <cmath>
+
+class Vector2 {
+public:
+	double x, y;
+	Vector2() {
+		x = y = 0;
+	}
+	Vector2(double i, double j) {
+		x = i; y = j;
+	}
+	double Length() const {
+		return sqrt(x*x+y*y);
+	}
+	double SquaredLength() const {
+		return x*x+y*y;
+	}
+	double operator[](size_t i) {
+		if (i >= 2)
+			throw(std::runtime_error("Out of range"));
+		return *(&x+i);
+	}
+	//Arithmetic operators
+	Vector2 operator+(Vector2 v) const { return Vector2(x + v.x, y + v.y); }
+	Vector2 operator-(Vector2 v) const { return Vector2(x - v.x, y - v.y); }
+	Vector2 operator*(Vector2 v) const { return Vector2(x * v.x, y * v.y); }
+	Vector2 operator*(double d) const { return Vector2(x * d, y * d); }
+
+	Vector2 operator/(Vector2 v) {
+		if (!v.x || !v.y)
+			throw(std::runtime_error("Divide by zero"));
+		return Vector2(x / v.x, y / v.y);
+	}
+	Vector2 operator/(double d) {
+		if (!d)
+			throw(std::runtime_error("Divide by zero"));
+		return Vector2(x / d, y / d);
+	}
+
+	bool operator==(Vector2 v) { return (x == v.x && y == v.y); }
+	bool operator!=(Vector2 v) { return (x != v.x || y != v.y); }
+
+	template<typename T> Vector2 operator+=(T t) { return *this = *this + t; }
+	template<typename T> Vector2 operator-=(T t) { return *this = *this - t; }
+	template<typename T> Vector2 operator*=(T t) { return *this = *this * t; }
+	template<typename T> Vector2 operator/=(T t) { return *this = *this / t; }
+	template<typename T> bool operator==(T t) { return (x == t && y == t); }
+	template<typename T> bool operator!=(T t) { return (x != t || y != t); }
+};
+
+#endif