Implemented sprite & added player animation.

2016-11-30 00:34:36 +02:00 · 2016-11-30 00:34:36 +02:00 · bcd0a359fc
commit bcd0a359fc
parent d2c335bfa5
26 changed files with 843 additions and 86 deletions
--- a/.cproject
+++ b/.cproject
@ -16,13 +16,15 @@
 					<folderInfo id="cdt.managedbuild.config.gnu.exe.debug.1767279125." name="/" resourcePath="">
 						<toolChain id="cdt.managedbuild.toolchain.gnu.exe.debug.263074825" name="Linux GCC" superClass="cdt.managedbuild.toolchain.gnu.exe.debug">
 							<targetPlatform id="cdt.managedbuild.target.gnu.platform.exe.debug.361182110" name="Debug Platform" superClass="cdt.managedbuild.target.gnu.platform.exe.debug"/>
-							<builder buildPath="${workspace_loc:/Farmlands}/Debug" id="org.eclipse.cdt.build.core.internal.builder.1184678368" superClass="org.eclipse.cdt.build.core.internal.builder"/>
+							<builder buildPath="${workspace_loc:/Farmlands}/Debug" id="org.eclipse.cdt.build.core.internal.builder.1184678368" keepEnvironmentInBuildfile="false" name="CDT Internal Builder" superClass="org.eclipse.cdt.build.core.internal.builder"/>
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-								<option id="gnu.cpp.compiler.option.preprocessor.def.954705469" name="Defined symbols (-D)" superClass="gnu.cpp.compiler.option.preprocessor.def" useByScannerDiscovery="false"/>
+								<option id="gnu.cpp.compiler.option.preprocessor.def.954705469" name="Defined symbols (-D)" superClass="gnu.cpp.compiler.option.preprocessor.def" useByScannerDiscovery="false" valueType="definedSymbols">
+									<listOptionValue builtIn="false" value="BUILD_DEBUG"/>
+								</option>
 								<option id="gnu.cpp.compiler.option.include.paths.1179839838" name="Include paths (-I)" superClass="gnu.cpp.compiler.option.include.paths" useByScannerDiscovery="false" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/Farmlands/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/Farmlands/import/include}&quot;"/>
@ -37,6 +39,9 @@
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/Farmlands/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/Farmlands/import/include}&quot;"/>
 								</option>
+								<option id="gnu.c.compiler.option.preprocessor.def.symbols.1611927348" name="Defined symbols (-D)" superClass="gnu.c.compiler.option.preprocessor.def.symbols" useByScannerDiscovery="false" valueType="definedSymbols">
+									<listOptionValue builtIn="false" value="BUILD_DEBUG"/>
+								</option>
 								<inputType id="cdt.managedbuild.tool.gnu.c.compiler.input.1905365757" superClass="cdt.managedbuild.tool.gnu.c.compiler.input"/>
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@ -93,7 +98,9 @@
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-								<option id="gnu.cpp.compiler.option.preprocessor.def.317772284" name="Defined symbols (-D)" superClass="gnu.cpp.compiler.option.preprocessor.def" useByScannerDiscovery="false"/>
+								<option id="gnu.cpp.compiler.option.preprocessor.def.317772284" name="Defined symbols (-D)" superClass="gnu.cpp.compiler.option.preprocessor.def" useByScannerDiscovery="false" valueType="definedSymbols">
+									<listOptionValue builtIn="false" value="BUILD_RELEASE"/>
+								</option>
 								<option id="gnu.cpp.compiler.option.include.paths.664997027" name="Include paths (-I)" superClass="gnu.cpp.compiler.option.include.paths" useByScannerDiscovery="false" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/Farmlands/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/Farmlands/import/include}&quot;"/>
@ -108,6 +115,9 @@
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/Farmlands/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/Farmlands/import/include}&quot;"/>
 								</option>
+								<option id="gnu.c.compiler.option.preprocessor.def.symbols.252229749" name="Defined symbols (-D)" superClass="gnu.c.compiler.option.preprocessor.def.symbols" useByScannerDiscovery="false" valueType="definedSymbols">
+									<listOptionValue builtIn="false" value="BUILD_RELEASE"/>
+								</option>
 								<inputType id="cdt.managedbuild.tool.gnu.c.compiler.input.1918347020" superClass="cdt.managedbuild.tool.gnu.c.compiler.input"/>
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 							<tool id="cdt.managedbuild.tool.gnu.c.linker.exe.release.1752295375" name="GCC C Linker" superClass="cdt.managedbuild.tool.gnu.c.linker.exe.release"/>
--- a/assets/sprites/player.sprite
+++ b/assets/sprites/player.sprite
@ -0,0 +1,148 @@
+{
+	"name" : "Player",
+	"anchorX" : 0.5,
+	"anchorY" : 1,
+	
+	"states" : 
+	[
+		{
+			"name" : "Idle right",
+			"frames" :
+			[
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 0,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 1
+				}
+			]
+		},
+		
+		{
+			"name" : "Idle up",
+			"frames" :
+			[
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 2,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 1
+				}
+			]
+		},
+		
+		{
+			"name" : "Idle left",
+			"frames" :
+			[
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 4,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 1
+				}
+			]
+		},
+		
+		{
+			"name" : "Idle down",
+			"frames" :
+			[
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 6,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 1
+				}
+			]
+		},
+		
+		{
+			"name" : "Walking right",
+			"frames" :
+			[
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 0,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 7
+				},
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 1,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 7
+				}
+			]
+		},
+		
+		{
+			"name" : "Walking up",
+			"frames" :
+			[
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 2,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 7
+				},
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 3,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 7
+				}
+			]
+		},
+		
+		{
+			"name" : "Walking left",
+			"frames" :
+			[
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 4,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 7
+				},
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 5,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 7
+				}
+			]
+		},
+		
+		{
+			"name" : "Walking down",
+			"frames" :
+			[
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 6,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 7
+				},
+				{
+					"tileSet" : "tilesets/PlayerTiles.png",
+					"cell" : 7,
+					"width" : 1,
+					"height" : 2,
+					"duration" : 7
+				}
+			]
+		}
+	]
+}
--- a/assets/tilesets/PlayerTiles.png
+++ b/assets/tilesets/PlayerTiles.png
--- a/assets_original/player.xcf
+++ b/assets_original/player.xcf
--- a/build/prepareAssets.py
+++ b/build/prepareAssets.py
@ -47,7 +47,8 @@ FILE_TYPES = [
    ([".png", ".bmp"], "Texture"),
    ([".level"], "Level"),
    ([".csv"], "LevelLayer"),
-    ([".ttf"], "Font"),    
+    ([".ttf"], "Font"),
+    ([".sprite"], "Sprite"),    
 ]


--- a/src/Main.cpp
+++ b/src/Main.cpp
@ -1,8 +1,20 @@
 #include <controller/FarmlandsGame.h>
+#include <utils/Exceptions.h>
+
+#include <iostream>

 using namespace farmlands;

 int main()
 {
-	return controller::FarmlandsGame().run();
+	try
+	{
+		return controller::FarmlandsGame().run();
+	}
+	catch (utils::Exception& ex)
+	{
+		std::cerr << "Panic: Caught unhandled exception!\n";
+		std::cerr << typeid(ex).name() << " : " << ex.message() << "\n";
+		std::cerr << "Source: file " << ex.file() << " line " << ex.line() << "\n";
+	}
 }
--- a/src/controller/GuiController.cpp
+++ b/src/controller/GuiController.cpp
@ -38,13 +38,13 @@ void GuiController::initialize(GameState* gameState)

 	// Add a text element
 	auto text = new gui::widgets::TextArea();
-	text->setText("Hello world!\nMy name is Tibi!\nThis is a really really long long long, even the longest ever, line.\nThis is a very loooooooooooooooooong word.");
-	text->setSize(200, 200);
+	text->setText("Hello world!");
+	text->setSize(50, 5);
 	text->setPosition(100, 10);
 	text->setColor(0, 1, 0);
 	text->setBackColor(0.5f, 0, 0, 0.5f);
 	text->setTextSize(11);
-	text->setHorizontalWrap(gui::widgets::TextHorizontalWrapping::Wrap);
+	text->setHorizontalWrap(gui::widgets::TextHorizontalWrapping::Ellipsis);
 	text->setVerticalWrap(gui::widgets::TextVerticalWrapping::Trim);
 	text->setAlignment(gui::widgets::TextAlign::BottomRight);
 	m_canvas.addChild(text);
--- a/src/controller/PlayerController.cpp
+++ b/src/controller/PlayerController.cpp
@ -7,13 +7,10 @@

 #include <GameState.h>
 #include <controller/PlayerController.h>
+#include <utils/Assert.h>

-#include <cassert>
-
-namespace farmlands
-{
-namespace controller
-{
+namespace farmlands {
+namespace controller {

 PlayerController::PlayerController()
 	: m_gameState(nullptr)
@ -26,7 +23,8 @@ PlayerController::~PlayerController()

 void PlayerController::initialize(GameState* gameState)
 {
-	assert(gameState != nullptr);
+	Assert(gameState != nullptr, "Game state must not be NULL!");
+
 	m_gameState = gameState;
 }

@ -71,6 +69,9 @@ void PlayerController::updateLogic()
 	{
 		m_gameState->player.posX = newX;
 		m_gameState->player.posY = newY;
+		m_gameState->player.lastDeltaX = deltaX * deltaMultiplier;
+		m_gameState->player.lastDeltaY = deltaY * deltaMultiplier;
+		setDirection(deltaX, deltaY);

 		m_gameState->camera.posX = m_gameState->player.posX;
 		m_gameState->camera.posY = m_gameState->player.posY - 1;
@ -83,5 +84,21 @@ bool PlayerController::canMove(float x, float y)
 	return true;
 }

+static const model::Direction directions[3][3] =
+{
+	{ model::Direction::NorthWest, model::Direction::West, model::Direction::SouthWest },
+	{ model::Direction::North, model::Direction::South, model::Direction::South },
+	{ model::Direction::NorthEast, model::Direction::East, model::Direction::SouthEast },
+};
+
+void PlayerController::setDirection(float dx, float dy)
+{
+	int xx = (0 < dx) - (dx < 0);
+	int yy = (0 < dy) - (dy < 0);
+
+	if (xx != 0 || yy != 0)
+		m_gameState->player.direction = directions[xx + 1][yy + 1];
+}
+
 } /* namespace controller */
 } /* namespace farmlands */
--- a/src/controller/PlayerController.h
+++ b/src/controller/PlayerController.h
@ -42,6 +42,7 @@ namespace controller {

 	private:
 		bool canMove(float x, float y);
+		void setDirection(float dx, float dy);

 		GameState* m_gameState;
 	};
--- a/src/graphics/GameRenderer.cpp
+++ b/src/graphics/GameRenderer.cpp
@ -100,26 +100,79 @@ void GameRenderer::renderTileLayers()
 	}
 }

-void GameRenderer::renderPlayer()
+void GameRenderer::renderSprite(model::Sprite* sprite, float destX, float destY)
 {
-	float posX = xToScreen(m_gameState->player.posX);
-	float posY = yToScreen(m_gameState->player.posY);
+	float posX = xToScreen(destX);
+	float posY = yToScreen(destY);

 	// Obtain texture
-	int texWidth, texHeight;
-	SDL_Texture* playerTexture = m_gameState->resManager.texture(resources::R::Player::Default);
-	SDL_QueryTexture(playerTexture, NULL, NULL, &texWidth, &texHeight);
+	int texId = sprite->currentFrame().tileSetId;
+	SDL_Texture* texture = m_gameState->resManager.texture(texId);

-	// Draw using bottom center of texture as anchor point
-	SDL_Rect dest =
+	// Compute src rectangle
+	SDL_Rect src;
+	getCell(texture, sprite->currentFrame().tileSetCell, &src.x, &src.y);
+	src.w = sprite->currentFrame().width * m_gameState->currentLevel->m_cellWidth;
+	src.h = sprite->currentFrame().height * m_gameState->currentLevel->m_cellHeight;
+
+	// Compute destination rectangle
+	SDL_Rect dest;
+	dest.x = posX - sprite->anchorX * src.w * m_gameState->camera.scale;
+	dest.y = posY - sprite->anchorY * src.h * m_gameState->camera.scale;
+	dest.w = src.w * m_gameState->camera.scale;
+	dest.h = src.h * m_gameState->camera.scale;
+
+	// Draw
+	SDL_RenderCopy(m_gameState->sdlRenderer.internalRenderer(), texture, &src, &dest);
+
+	// Advance animation frame
+	sprite->advanceTime(1);
+}
+
+void GameRenderer::renderPlayer()
+{
+	// Compute current state
+	model::Sprite* sprite = m_gameState->resManager.sprite(resources::R::Sprites::Player);
+
+	bool walking = (m_gameState->player.lastDeltaX != 0 || m_gameState->player.lastDeltaY != 0);
+	std::string stateName = (walking) ? "Walking " : "Idle ";
+
+	switch(m_gameState->player.direction)
 	{
-		(int) (posX - texWidth * m_gameState->camera.scale / 2),
-		(int) (posY - texHeight * m_gameState->camera.scale),
-		(int) (texWidth * m_gameState->camera.scale),
-		(int) (texHeight * m_gameState->camera.scale),
-	};
+		case model::Direction::SouthEast:
+		case model::Direction::East:
+		case model::Direction::NorthEast:
+			stateName += "right";
+			break;

-	SDL_RenderCopy(m_gameState->sdlRenderer.internalRenderer(), playerTexture, NULL, &dest);
+		case model::Direction::North:
+			stateName += "up";
+			break;
+
+		case model::Direction::NorthWest:
+		case model::Direction::West:
+		case model::Direction::SouthWest:
+			stateName += "left";
+			break;
+
+		case model::Direction::South:
+			stateName += "down";
+			break;
+	}
+	sprite->setState(stateName);
+
+	// Draw
+	renderSprite(sprite, m_gameState->player.posX, m_gameState->player.posY);
+}
+
+void GameRenderer::getCell(SDL_Texture* texture, int cell, int* outX, int* outY)
+{
+	int texWidth, texHeight;
+	SDL_QueryTexture(texture, NULL, NULL, &texWidth, &texHeight);
+
+	// Compute texture coordinates
+	*outX = (cell * m_gameState->currentLevel->m_cellWidth) % texWidth;
+	*outY = ((cell * m_gameState->currentLevel->m_cellWidth) / texWidth) * m_gameState->currentLevel->m_cellHeight;
 }

 float GameRenderer::xToWorld(float x)
--- a/src/graphics/GameRenderer.h
+++ b/src/graphics/GameRenderer.h
@ -8,6 +8,7 @@
 #ifndef GRAPHICS_GAMERENDERER_H_
 #define GRAPHICS_GAMERENDERER_H_

+#include <model/Sprite.h>
 #include <graphics/SdlRenderer.h>
 #include <resources/ResourceManager.h>

@ -42,12 +43,15 @@ namespace graphics {
 		void prepareRender();
 		void renderTileLayers();
 		void renderPlayer();
+		void renderSprite(model::Sprite* sprite, float destX, float destY);

 		float xToWorld(float x);
 		float yToWorld(float y);
 		float xToScreen(float x);
 		float yToScreen(float y);

+		void getCell(SDL_Texture* texture, int cell, int* outX, int* outY);
+
 		GameState* m_gameState;

 		// Size of a cell (scaled)
--- a/src/model/Player.h
+++ b/src/model/Player.h
@ -8,6 +8,8 @@
 #ifndef MODEL_PLAYER_H_
 #define MODEL_PLAYER_H_

+#include <model/Direction.h>
+
 namespace farmlands {
 namespace model {

@ -16,6 +18,9 @@ namespace model {
 	struct Player
 	{
 		float posX, posY;
+		float lastDeltaX, lastDeltaY;
+		Direction direction;
+

 		int inventorySelection = -1;
 		int inventory[PLAYER_INVENTORY_SIZE];
--- a/src/model/Sprite.cpp
+++ b/src/model/Sprite.cpp
@ -0,0 +1,102 @@
+/*
+ * Sprite.cpp
+ *
+ *  Created on: Nov 29, 2016
+ *      Author: tibi
+ */
+
+#include <model/Sprite.h>
+#include <utils/Assert.h>
+
+#include <algorithm>
+
+namespace farmlands {
+namespace model {
+
+Sprite::Sprite()
+	: anchorX(0), anchorY(0),
+	  m_states(),
+	  m_currentState(0),
+	  m_currentFrame(0),
+	  m_currentFrameTimeLeft(0)
+{
+}
+
+Sprite::~Sprite()
+{
+}
+
+void Sprite::addState(const SpriteState& state)
+{
+	Assert(state.frames.size() > 0, "State must have at least one frame!");
+#ifdef BUILD_DEBUG
+	uint32_t totalDuration = 0;
+	for (auto frame : state.frames)
+		totalDuration += frame.duration;
+
+	Assert(totalDuration > 0, "State must have a frame which last at least one tick.");
+#endif
+	Assert(m_stateNames.count(state.name) == 0, "A state with the same name already added!");
+
+	m_states.push_back(state);
+	m_stateNames.emplace(state.name, m_states.size() - 1);
+}
+
+void Sprite::setState(size_t stateId)
+{
+	Assert(stateId < m_states.size(), "Inexistent state.");
+
+	// Avoid resetting state
+	if (stateId == m_currentState)
+		return;
+
+	m_currentState = stateId;
+	m_currentFrame = 0;
+	m_currentFrameTimeLeft = currentFrame().duration * 1;
+}
+
+void Sprite::setState(const std::string& name)
+{
+	Assert(m_stateNames.count(name) > 0, "Inexistent state.");
+	setState(m_stateNames.at(name));
+}
+
+void Sprite::advanceTime(uint32_t steps)
+{
+	Assert(m_states.size() > 0, "Sprite must have at least one state!");
+
+	while (steps > 0)
+	{
+		// There is time left in the current frame?
+		if (m_currentFrameTimeLeft > 0)
+		{
+			uint32_t sub = std::min(steps, m_currentFrameTimeLeft);
+			m_currentFrameTimeLeft -= sub;
+			steps -= sub;
+		}
+
+		if (m_currentFrameTimeLeft == 0)
+		{
+			// Move to the next frame
+			if (++m_currentFrame >= currentState().frames.size())
+				m_currentFrame = 0;
+
+			m_currentFrameTimeLeft = currentFrame().duration * 1;
+		}
+	}
+}
+
+SpriteState& Sprite::currentState()
+{
+	Assert(m_states.size() > 0, "Sprite must have at least one state!");
+	return m_states.at(m_currentState);
+}
+
+Frame& Sprite::currentFrame()
+{
+	Assert(currentState().frames.size() > 0, "State must have at least one frame!");
+	return currentState().frames.at(m_currentFrame);
+}
+
+} /* namespace model */
+} /* namespace farmlands */
--- a/src/model/Sprite.h
+++ b/src/model/Sprite.h
@ -0,0 +1,88 @@
+/*
+ * Sprite.h
+ *
+ *  Created on: Nov 29, 2016
+ *      Author: tibi
+ */
+
+#ifndef MODEL_SPRITE_H_
+#define MODEL_SPRITE_H_
+
+#include <utils/Exceptions.h>
+
+#include <vector>
+#include <unordered_map>
+
+namespace farmlands {
+namespace model {
+
+	/**
+	 * Defines an animation frame
+	 */
+	struct Frame
+	{
+		uint32_t tileSetId;
+		uint32_t tileSetCell;
+		uint32_t width, height;
+		uint32_t duration;
+	};
+
+	/**
+	 * Defines a sprite state (aka an animation).
+	 */
+	struct SpriteState
+	{
+		std::string name;
+		std::vector<Frame> frames;
+	};
+
+	/**
+	 * Defines a sprite
+	 */
+	class Sprite
+	{
+	public:
+		Sprite();
+		virtual ~Sprite();
+
+		/**
+		 * Adds a state to the sprite.
+		 */
+		void addState(const SpriteState& state);
+
+		/**
+		 * Sets the current state.
+		 */
+		void setState(size_t stateId);
+
+		/**
+		 * Sets the current state.
+		 */
+		void setState(const std::string& name);
+
+		/**
+		 * Advances the current frame
+		 */
+		void advanceTime(uint32_t steps);
+
+
+		// Getters
+		SpriteState& currentState();
+		Frame& currentFrame();
+
+		// Public fields
+		float anchorX, anchorY;
+
+	private:
+		std::vector<SpriteState> m_states;
+		std::unordered_map<std::string, size_t> m_stateNames;
+
+		size_t m_currentState;
+		size_t m_currentFrame;
+		uint32_t m_currentFrameTimeLeft;
+	};
+
+} /* namespace model */
+} /* namespace farmlands */
+
+#endif /* MODEL_SPRITE_H_ */
--- a/src/resources/ResourceInfo.h
+++ b/src/resources/ResourceInfo.h
@ -15,6 +15,7 @@ namespace resources {
 	{
 		None,
 		Texture,
+		Sprite,
 		Level,
 		LevelLayer,
 		Font,
--- a/src/resources/ResourceManager.h
+++ b/src/resources/ResourceManager.h
@ -9,6 +9,7 @@
 #define STORAGE_RESOURCEMANAGER_H_

 #include <model/Level.h>
+#include <model/Sprite.h>

 #include <vector>
 #include <map>
@ -39,6 +40,7 @@ namespace resources {
 			} texture;

 			model::Level* level;
+			model::Sprite* sprite;
 		};
 	};

@ -57,6 +59,7 @@ namespace resources {
 		TTF_Font* font(int id, int pointSize);
 		SDL_Texture* texture(int id);
 		model::Level* level(int id);
+		model::Sprite* sprite(int id);

 	private:
 		/**
@ -70,16 +73,10 @@ namespace resources {
 		 */
 		int getId(std::string resourcePath);

-		/**
-		 * Loads the cell data for a level tile layer.
-		 */
-		void loadLevelLayer(model::Level* level, size_t layerNumber, int resourceId);
-
-		/**
-		 * Loads a texture into memory.
-		 */
-		void loadTexture(int textureId);
 		void loadFont(int fontId, int pointSize);
+		void loadTexture(int textureId);
+		void loadSprite(int spriteId);
+		void loadLevelLayer(model::Level* level, size_t layerNumber, int resourceId);

 		// State
 		GameState* m_gameState;
--- a/src/resources/ResourceManager/ResourceManager.cpp
+++ b/src/resources/ResourceManager/ResourceManager.cpp
@ -7,13 +7,10 @@

 #include <resources/ResourceManager.h>
 #include <resources/Resources.h>
+#include <utils/Assert.h>

 #include <boost/filesystem.hpp>

-#define FONTID(id,size) (id * 1000 + size)
-#define FONTID_SIZE(fontid) (fontid % 1000)
-#define FONTID_ID(fontid) (fontid / 1000)
-
 namespace farmlands {
 namespace resources {

@ -43,8 +40,11 @@ ResourceManager::~ResourceManager()
 				SDL_FreeSurface(m_loadedResources[i].texture.surface);
 				break;

+			case ResourceType::Sprite:
+				delete m_loadedResources[i].sprite;
+
 			default:
-				assert(false);
+				Assert(false, "Cannot free resources!");
 				break;
 			}
 		}
@ -64,25 +64,13 @@ void ResourceManager::loadMainMenu()

 void ResourceManager::loadGameAssets()
 {
-	loadTexture(R::Player::Default);
-}
-
-TTF_Font* ResourceManager::font(int id, int pointSize)
-{
-	// Open from cache
-	auto it = m_fontCache.find(FONTID(id, pointSize));
-	if (it != m_fontCache.end())
-		return it->second;
-
-	// Open font
-	TTF_Font* font = TTF_OpenFont(getPath(id).c_str(), pointSize);
-	m_fontCache.emplace(FONTID(id, pointSize), font);
-
-	return font;
+	loadSprite(R::Sprites::Player);
 }

 std::string ResourceManager::getPath(int resourceId)
 {
+	Assert(resourceId >= 0 && resourceId < sizeof(RInfo) / sizeof(RInfo[0]), "Resource id out of bounds.");
+
 	boost::filesystem::path resPath(ASSETS_DIR);
 	resPath.append(RInfo[resourceId].path);

--- a/src/resources/ResourceManager/ResourceManager_Fonts.cpp
+++ b/src/resources/ResourceManager/ResourceManager_Fonts.cpp
@ -0,0 +1,37 @@
+/*
+ * ResourceManager_Fonts.cpp
+ *
+ *  Created on: Nov 29, 2016
+ *      Author: tibi
+ */
+#include <resources/ResourceManager.h>
+#include <resources/Resources.h>
+
+#define FONTID(id,size) (id * 1000 + size)
+#define FONTID_SIZE(fontid) (fontid % 1000)
+#define FONTID_ID(fontid) (fontid / 1000)
+
+namespace farmlands {
+namespace resources {
+
+TTF_Font* ResourceManager::font(int id, int pointSize)
+{
+	// Open from cache
+	auto it = m_fontCache.find(FONTID(id, pointSize));
+	if (it != m_fontCache.end())
+		return it->second;
+
+	// Open font
+	std::string fontPath = getPath(id);
+	TTF_Font* font = TTF_OpenFont(fontPath.c_str(), pointSize);
+	if (!font)
+		THROW(utils::ResourceLoadException, "Could not load font " + fontPath);
+
+	// Cache it
+	m_fontCache.emplace(FONTID(id, pointSize), font);
+
+	return font;
+}
+
+}
+}
--- a/src/resources/ResourceManager/ResourceManager_Levels.cpp
+++ b/src/resources/ResourceManager/ResourceManager_Levels.cpp
@ -7,6 +7,7 @@

 #include <resources/ResourceManager.h>
 #include <resources/Resources.h>
+#include <utils/Assert.h>

 #include <fstream>
 #include <string>
@ -20,14 +21,15 @@ namespace resources {

 void ResourceManager::loadLevelLayer(model::Level* level, size_t layer, int resourceId)
 {
-	assert(RInfo[resourceId].type == ResourceType::LevelLayer);
+	Assert(RInfo[resourceId].type == ResourceType::LevelLayer, "Resource must be a level layer.");

 	char buffer[1024 * 10];

 	// Open file
-	std::ifstream in(getPath(resourceId));
+	std::string pathIn = getPath(resourceId);
+	std::ifstream in(pathIn);
 	if (!in)
-		throw 0; // TODO: replace with exception type
+		THROW(utils::ResourceLoadException, "Could not load level layer " + pathIn);

 	// Read CSV file line by line
 	for (size_t row = 0; row < level->rowCount(); row++)
@ -35,7 +37,7 @@ void ResourceManager::loadLevelLayer(model::Level* level, size_t layer, int reso
 		in.getline(buffer, sizeof(buffer));

 		if (in.eof())
-			throw 0; // TODO: replace with exception type
+			THROW(utils::ResourceLoadException, "Unexpected end of file " + pathIn);

 		// Separated by comma (or maybe semicolon)
 		char* nextNum = strtok(buffer, ",;");
@ -55,12 +57,15 @@ void ResourceManager::loadLevelLayer(model::Level* level, size_t layer, int reso
 void ResourceManager::loadLevel(int levelId)
 {
 	// Sanity checks
-	assert(RInfo[levelId].type == ResourceType::Level);
+	Assert(RInfo[levelId].type == ResourceType::Level, "Resource must be a level!");
+	if (m_loadedResources[levelId].loaded)
+		return;

 	// Open file
+	std::string levelPath = getPath(levelId);
 	std::ifstream levelIn(getPath(levelId));
 	if (!levelIn)
-		throw 0; // TODO: replace with exception type
+		THROW(utils::ResourceLoadException, "Failed to load level " + levelPath);

 	// Parse file
 	json levelJs;
@ -97,7 +102,7 @@ void ResourceManager::loadLevel(int levelId)

 model::Level* ResourceManager::level(int id)
 {
-	assert(RInfo[id].type == ResourceType::Level);
+	Assert(RInfo[id].type == ResourceType::Level, "Resource must be a level!");

 	return m_loadedResources[id].level;
 }
--- a/src/resources/ResourceManager/ResourceManager_Sprites.cpp
+++ b/src/resources/ResourceManager/ResourceManager_Sprites.cpp
@ -0,0 +1,91 @@
+/*
+ * ResourceManager_Sprites.cpp
+ *
+ *  Created on: Nov 29, 2016
+ *      Author: tibi
+ */
+#include <model/Sprite.h>
+#include <resources/ResourceManager.h>
+#include <resources/Resources.h>
+#include <utils/Assert.h>
+
+#include <fstream>
+#include <string>
+
+#include <json.hpp>
+
+using namespace nlohmann;
+
+namespace farmlands {
+namespace resources {
+
+
+void ResourceManager::loadSprite(int spriteId)
+{
+	Assert(RInfo[spriteId].type == ResourceType::Sprite, "Resource must be a sprite!");
+	if (m_loadedResources[spriteId].loaded)
+		return;
+
+	// Open file
+	std::string spritePath = getPath(spriteId);
+	std::ifstream spriteIn(spritePath);
+	if (!spriteIn)
+		THROW(utils::ResourceLoadException, "Could not load " + spritePath);
+
+	// Parse file
+	json spriteJs;
+	spriteIn >> spriteJs;
+
+	model::Sprite* sprite = new model::Sprite();
+	sprite->anchorX = spriteJs.value("anchorX", 0.0f);
+	sprite->anchorY = spriteJs.value("anchorY", 0.0f);
+
+	json statesJs = spriteJs.at("states");
+
+	for (auto state : statesJs)
+	{
+		model::SpriteState spriteState;
+		spriteState.name = state.value("name", std::string());
+
+		// Obtain frames
+		json framesJs = state.at("frames");
+		for (auto frame : framesJs)
+		{
+			model::Frame spriteFrame;
+			spriteFrame.tileSetCell = frame.value("cell", 0u);
+			spriteFrame.width = frame.value("width", 0u);
+			spriteFrame.height = frame.value("height", 0u);
+			spriteFrame.duration = frame.value("duration", 0u);
+
+			// Obtain tile set id
+			std::string tileSetPath = frame.value("tileSet", std::string());
+			spriteFrame.tileSetId = getId(tileSetPath);
+			loadTexture(spriteFrame.tileSetId);
+
+			// Add frame
+			spriteState.frames.push_back(spriteFrame);
+		}
+
+		// Add state
+		sprite->addState(spriteState);
+	}
+
+	m_loadedResources[spriteId].loaded = true;
+	m_loadedResources[spriteId].sprite = sprite;
+}
+
+model::Sprite* ResourceManager::sprite(int id)
+{
+	Assert(RInfo[id].type == ResourceType::Sprite, "Resource must be a sprite!");
+
+	return m_loadedResources[id].sprite;
+}
+
+}
+}
+
+
+
+
+
+
--- a/src/resources/ResourceManager/ResourceManager_Textures.cpp
+++ b/src/resources/ResourceManager/ResourceManager_Textures.cpp
@ -7,25 +7,28 @@
 #include <GameState.h>
 #include <resources/ResourceManager.h>
 #include <resources/Resources.h>
-
-#include <cassert>
+#include <utils/Assert.h>

 namespace farmlands {
 namespace resources {

 void ResourceManager::loadTexture(int resourceId)
 {
-	assert(RInfo[resourceId].type == ResourceType::Texture);
+	Assert(RInfo[resourceId].type == ResourceType::Texture, "Resource must be a texture!");
+	if (m_loadedResources[resourceId].loaded)
+		return;

 	// Open file
-	SDL_Surface* surface = IMG_Load(getPath(resourceId).c_str());
+	std::string texturePath = getPath(resourceId);
+	SDL_Surface* surface = IMG_Load(texturePath.c_str());
 	if (surface == NULL)
-		throw 0; // TODO: error handling
+		THROW(utils::ResourceLoadException, "Failed to load texture " + texturePath);

 	SDL_Texture* texture = SDL_CreateTextureFromSurface(m_gameState->sdlRenderer.internalRenderer(), surface);
 	if (texture == NULL)
-		throw 0; // TODO: error handling
+		THROW(utils::ResourceLoadException, "Failed to create texture " + texturePath);

+	// Add to loaded resources
 	m_loadedResources[resourceId].loaded = true;
 	m_loadedResources[resourceId].texture.surface = surface;
 	m_loadedResources[resourceId].texture.texture = texture;
@ -33,7 +36,8 @@ void ResourceManager::loadTexture(int resourceId)

 SDL_Texture* ResourceManager::texture(int id)
 {
-	assert(RInfo[id].type == ResourceType::Texture);
+	Assert(RInfo[id].type == ResourceType::Texture, "Resource must be a texture!");
+
 	return m_loadedResources[id].texture.texture;
 }

--- a/src/resources/Resources.g.h
+++ b/src/resources/Resources.g.h
@ -12,41 +12,43 @@ namespace resources {
     * The IDs are generated at build time by the 'prepareAssets.py' script.
     */
    namespace R {
+        enum Sprites
+        {
+            Player = 0,
+        };
        enum Fonts
        {
-            DejaVuSans = 0,
-        };
-        enum Player
-        {
-            Default = 1,
+            DejaVuSans = 1,
        };
        enum Tilesets
        {
-            Ground = 2,
+            PlayerTiles = 2,
+            Ground = 3,
        };
        enum Ui
        {
-            Cursor = 3,
+            Cursor = 4,
        };
        enum Levels
        {
-            Farm_Background = 4,
-            Farm = 5,
+            Farm_Background = 5,
+            Farm = 6,
        };
    }

-    const int RInfo_Fonts_Begin = 0;
-    const int RInfo_Player_Begin = 1;
+    const int RInfo_Sprites_Begin = 0;
+    const int RInfo_Fonts_Begin = 1;
    const int RInfo_Tilesets_Begin = 2;
-    const int RInfo_Ui_Begin = 3;
-    const int RInfo_Levels_Begin = 4;
+    const int RInfo_Ui_Begin = 4;
+    const int RInfo_Levels_Begin = 5;

    /**
     * This array contains the names of all the files, and the corresponding file type.
     */
    const ResourceInfo RInfo[] = {
+        { "sprites/player.sprite", ResourceType::Sprite },
        { "fonts/DejaVuSans.ttf", ResourceType::Font },
-        { "player/default.png", ResourceType::Texture },
+        { "tilesets/PlayerTiles.png", ResourceType::Texture },
        { "tilesets/Ground.png", ResourceType::Texture },
        { "ui/cursor.png", ResourceType::Texture },
        { "levels/Farm_Background.csv", ResourceType::LevelLayer },
--- a/src/utils/Assert.cpp
+++ b/src/utils/Assert.cpp
@ -0,0 +1,39 @@
+/*
+ * Assert.cpp
+ *
+ *  Created on: Nov 29, 2016
+ *      Author: tibi
+ */
+
+#include <utils/Assert.h>
+#include <iostream>
+
+namespace farmlands {
+namespace utils {
+
+DEFINE_EXCEPTION_CPP(AssertionFailedException, Exception)
+
+void _AssertInternal(bool condition, const std::string& msg,
+		const std::string& lineText, const std::string& file, int line)
+{
+	if (!condition)
+	{
+		throw AssertionFailedException("Assertion failed: " + msg + "\n" + lineText, file, line);
+	}
+}
+
+void _AssertInternalLog(bool condition, const std::string& msg,
+		const std::string& lineText, const std::string& file, int line)
+{
+	if (!condition)
+	{
+		std::cerr << "In file " << file << ":" << line << ": ";
+		std::cerr << "Assertion failed: " << msg << "\n";
+		std::cerr << lineText << "\n";
+	}
+}
+
+} /* namespace utils */
+} /* namespace farmlands */
+
+
--- a/src/utils/Assert.h
+++ b/src/utils/Assert.h
@ -0,0 +1,30 @@
+/*
+ * Assert.h
+ *
+ *  Created on: Nov 29, 2016
+ *      Author: tibi
+ */
+
+#ifndef UTILS_ASSERT_H_
+#define UTILS_ASSERT_H_
+
+#include <utils/Exceptions.h>
+
+namespace farmlands {
+namespace utils {
+
+	DEFINE_EXCEPTION_CLASS(AssertionFailedException, Exception)
+
+	void _AssertInternal(bool condition, const std::string& msg, const std::string& lineText, const std::string& file, int line);
+	void _AssertInternalLog(bool condition, const std::string& msg, const std::string& lineText, const std::string& file, int line);
+
+#ifdef BUILD_DEBUG
+#define Assert(condition, message) farmlands::utils::_AssertInternal(condition, message, #condition, __FILE__, __LINE__)
+#else
+#define Assert(condition, message) farmlands::utils::_AssertInternalLog(condition, message, #condition, __FILE__, __LINE__)
+#endif
+
+} /* namespace utils */
+} /* namespace farmlands */
+
+#endif /* UTILS_ASSERT_H_ */
--- a/src/utils/Exceptions.cpp
+++ b/src/utils/Exceptions.cpp
@ -0,0 +1,45 @@
+/*
+ * Exceptions.cpp
+ *
+ *  Created on: Nov 29, 2016
+ *      Author: tibi
+ */
+
+#include <utils/Exceptions.h>
+
+namespace farmlands {
+namespace utils {
+
+Exception::Exception()
+	: m_message(),
+	  m_file(),
+	  m_line()
+{
+}
+
+Exception::Exception(const std::string& msg)
+	: m_message(msg),
+	  m_file(),
+	  m_line()
+{
+}
+
+Exception::Exception(const std::string& msg, const std::string& file, int line)
+	: m_message(msg),
+	  m_file(file),
+	  m_line(line)
+{
+}
+
+Exception::~Exception()
+{
+}
+
+
+DEFINE_EXCEPTION_CPP(InvalidArgumentException, Exception)
+DEFINE_EXCEPTION_CPP(IOException, Exception);
+DEFINE_EXCEPTION_CPP(ResourceLoadException, IOException);
+
+} /* namespace utils */
+} /* namespace farmlands */
+
--- a/src/utils/Exceptions.h
+++ b/src/utils/Exceptions.h
@ -0,0 +1,77 @@
+/*
+ * Exceptions.h
+ *
+ *  Created on: Nov 29, 2016
+ *      Author: tibi
+ */
+
+#ifndef UTILS_EXCEPTIONS_H_
+#define UTILS_EXCEPTIONS_H_
+
+#include <string>
+
+namespace farmlands {
+namespace utils {
+
+	class Exception
+	{
+	public:
+		Exception();
+		Exception(const std::string& msg);
+		Exception(const std::string& msg, const std::string& file, int line);
+		virtual ~Exception();
+
+		inline std::string message() const { return m_message; }
+		inline std::string file() const { return m_file; }
+		inline int line() const { return m_line; }
+
+	private:
+		std::string m_message;
+		std::string m_file;
+		int m_line;
+	};
+
+/**
+ *  Defines an exception class
+ */
+#define DEFINE_EXCEPTION_CLASS(className, baseClass) 								\
+	class className : public baseClass		   										\
+	{																				\
+	public:																			\
+		className();																\
+		className(const std::string& msg);											\
+		className(const std::string& msg, const std::string& file, int line);		\
+		virtual ~className();														\
+	};																				\
+
+
+/**
+ *  Defines the implementation for an exception class
+ */
+#define DEFINE_EXCEPTION_CPP(className, baseClass)									\
+	className::className()															\
+		: baseClass() { } 															\
+	className::className(const std::string& msg) 									\
+		: baseClass(msg) { } 														\
+	className::className(const std::string& msg, const std::string& file, int line) \
+		: baseClass(msg, file, line) { }											\
+	className::~className() { }														\
+
+
+/**
+ * Throws an exception; also adds file and line.
+ */
+#define THROW(exceptionClass, message) throw exceptionClass(message, __FILE__, __LINE__)
+
+
+	// Common exceptions
+
+	DEFINE_EXCEPTION_CLASS(InvalidArgumentException, Exception);
+	DEFINE_EXCEPTION_CLASS(IOException, Exception);
+	DEFINE_EXCEPTION_CLASS(ResourceLoadException, IOException);
+
+
+} /* namespace utils */
+} /* namespace farmlands */
+
+#endif /* UTILS_EXCEPTIONS_H_ */