trying out engine controlled game loops

10 files changed, 172 insertions, 0 deletions

diff --git a/gameloop/CMakeLists.txt b/gameloop/CMakeLists.txt
new file mode 100644
index 0000000..16cbcf3
--- /dev/null
+++ b/gameloop/CMakeLists.txt
@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.5)
+project(gameloop)
+
+# Set the C++ standard (optional, but good practice)
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
+
+# Find the SDL2 package
+find_package(SDL2 REQUIRED)
+
+# Add your executable
+set(SOURCES
+	src/loopManager
+    src/window.cpp
+    src/main.cpp
+	src/eventManager.cpp
+)
+
+add_executable(gameloop ${SOURCES})
+
+# Link the SDL2 library to your project
+target_link_libraries(gameloop ${SDL2_LIBRARIES})
+
+# Include SDL2 header files and project headers
+target_include_directories(gameloop PRIVATE ${SDL2_INCLUDE_DIRS})
+target_include_directories(gameloop PRIVATE ${CMAKE_SOURCE_DIR}/include)
diff --git a/gameloop/imgs/demo.bmp b/gameloop/imgs/demo.bmp
new file mode 100644
index 0000000..65354fe
--- /dev/null
+++ b/gameloop/imgs/demo.bmp
diff --git a/gameloop/imgs/demo.jpg b/gameloop/imgs/demo.jpg
new file mode 100644
index 0000000..f534e1b
--- /dev/null
+++ b/gameloop/imgs/demo.jpg
diff --git a/gameloop/include/eventManager.h b/gameloop/include/eventManager.h
new file mode 100644
index 0000000..2aa0a68
--- /dev/null
+++ b/gameloop/include/eventManager.h
@@ -0,0 +1,4 @@
+class EventManager
+{
+
+};
diff --git a/gameloop/include/loopManager.h b/gameloop/include/loopManager.h
new file mode 100644
index 0000000..03b07a9
--- /dev/null
+++ b/gameloop/include/loopManager.h
@@ -0,0 +1,18 @@
+#pragma once
+#include <SDL2/SDL.h>
+#include "window.h"
+class LoopManager{
+	public:
+		LoopManager();
+		void setup();
+		void loop();
+	private:
+		
+		
+		void processInput();
+		void update();
+		void render();
+		bool gameRunning;
+		WindowManager window;
+
+};
diff --git a/gameloop/include/window.h b/gameloop/include/window.h
new file mode 100644
index 0000000..b4f2b78
--- /dev/null
+++ b/gameloop/include/window.h
@@ -0,0 +1,22 @@
+#pragma once
+#include <SDL2/SDL.h>
+class WindowManager{
+	public:
+		WindowManager();
+		virtual ~WindowManager();
+		bool loadMedia();
+		void update();
+		bool init();
+		void close();
+		bool initWindow();
+		void destroyWindow();
+		SDL_Renderer* getRenderer();
+	private:
+		//Loads media
+		//Frees media and shuts down SDL
+		
+		const int SCREEN_WIDTH = 800;
+		const int SCREEN_HEIGHT = 600;
+		SDL_Window* window = NULL;
+		SDL_Renderer* renderer = NULL;
+};
diff --git a/gameloop/src/eventManager.cpp b/gameloop/src/eventManager.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/gameloop/src/eventManager.cpp
diff --git a/gameloop/src/loopManager.cpp b/gameloop/src/loopManager.cpp
new file mode 100644
index 0000000..ef2decf
--- /dev/null
+++ b/gameloop/src/loopManager.cpp
@@ -0,0 +1,37 @@
+#include "loopManager.h"
+LoopManager::LoopManager(){
+}
+void LoopManager::processInput(){
+	SDL_Event event;
+	SDL_PollEvent(&event);
+	switch(event.type){
+		case SDL_QUIT:
+			gameRunning = false;
+			break;
+		case SDL_KEYDOWN:
+			if(event.key.keysym.sym == SDLK_ESCAPE){
+				gameRunning = false;
+			}
+		break;
+	}
+}
+void LoopManager::loop(){
+	while(gameRunning){
+		//processInput();
+		//update();
+		//render();
+	}
+	window.destroyWindow();
+}
+void LoopManager::setup(){
+	gameRunning = window.initWindow();
+}
+void LoopManager::render(){
+	if(gameRunning){
+		SDL_SetRenderDrawColor(window.getRenderer(),255,0,0,255);
+		SDL_RenderClear(window.getRenderer());
+	}
+}
+void LoopManager::update(){
+
+}
diff --git a/gameloop/src/main.cpp b/gameloop/src/main.cpp
new file mode 100644
index 0000000..76d0c84
--- /dev/null
+++ b/gameloop/src/main.cpp
@@ -0,0 +1,17 @@
+//Using SDL and standard IO
+#include <SDL2/SDL.h>
+#include <stdio.h>
+//#include "window.h"
+#include "loopManager.h"
+//Screen dimension constants
+
+
+//Starts up SDL and creates window
+
+int main( int argc, char* args[] )
+{
+	LoopManager gameLoop;
+	gameLoop.setup();
+	gameLoop.loop();
+	return 0;
+}
diff --git a/gameloop/src/window.cpp b/gameloop/src/window.cpp
new file mode 100644
index 0000000..11424dd
--- /dev/null
+++ b/gameloop/src/window.cpp
@@ -0,0 +1,48 @@
+#include "window.h"
+
+WindowManager::WindowManager(){
+	if( !initWindow() )
+	{
+		printf( "Failed to initialize!\n" );
+	}
+}
+WindowManager::~WindowManager(){
+	destroyWindow();
+}
+bool WindowManager::init()
+{
+}
+bool WindowManager::loadMedia()
+{
+}
+void WindowManager::close()
+{
+
+}
+SDL_Renderer* WindowManager::getRenderer(){
+	return renderer;
+}
+void WindowManager::update(){
+}
+bool WindowManager::initWindow(){
+	if(SDL_Init(SDL_INIT_EVERYTHING) !=  0){
+		fprintf(stderr,"Error inititalising SDL.\n");
+		return false;
+	} 
+	window = SDL_CreateWindow("Gameloop POC",SDL_WINDOWPOS_CENTERED,SDL_WINDOWPOS_CENTERED,SCREEN_WIDTH,SCREEN_HEIGHT,SDL_WINDOW_RESIZABLE);
+	if(!window){
+		fprintf(stderr,"Error creating SDL Window. \n");
+		return false;
+	}
+	renderer = SDL_CreateRenderer(window,-1,0);
+	if(!renderer){
+		fprintf(stderr,"Error creating SDL renderer. \n");
+		return false;
+	}
+	return true;
+}
+void WindowManager::destroyWindow(){
+	SDL_DestroyRenderer(renderer);
+	SDL_DestroyWindow(window);
+	SDL_Quit();
+}