Hello World

.gitignore

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+[Bb]in/

CMakeLists.txt

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+#Set the project name
+project(LorenzAttractor)
+
+#Set the CMake version
+cmake_minimum_required(VERSION 3.0)
+
+#Use Conan
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup()
+
+#Import all source files
+file(GLOB src_files "src/*.c" "src/*.cpp" )
+
+#Make a project, link in libraries from conan
+ADD_EXECUTABLE(LorenzAttractor ${src_files})
+TARGET_LINK_LIBRARIES(LorenzAttractor ${CONAN_LIBS})
+
+#Set the C++ version
+set (CMAKE_CXX_STANDARD 11)
+
+#Set the project for VS to use.
+set_property(DIRECTORY PROPERTY VS_STARTUP_PROJECT "LorenzAttractor")
+
+#Perform prebuild
+add_custom_command(TARGET LorenzAttractor  PRE_BUILD COMMAND "pre_build_Script.bat")

README.md

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+# Lorenz Attractor

build-vs2015.bat

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+@echo off
+
+:start
+if exist src goto changetobin
+if exist .\CMakeLists.txt xcopy /q /i /e /y .\CMakeLists.txt .\bin\CMakeLists.txt
+if exist .\conanfile.txt xcopy /q /i /e /y .\conanfile.txt .\bin\conanfile.txt
+
+:conan
+conan install --build missing
+goto cmake
+
+:cmake
+cmake .. -G "Visual Studio 14 2015 Win64"
+goto end
+
+:changetobin
+cd bin
+goto start
+
+:end
+if exist bin goto quit
+cd ..
+goto quit
+
+:quit
+echo.
+echo.
+echo INFO: Conan and CMake ran successfully. Open up your solution file (listed below) to open your project.
+echo.
+dir /b *.sln

build-vs2017.bat

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+@echo off
+
+:start
+if exist src goto changetobin
+if exist .\CMakeLists.txt xcopy /q /i /e /y .\CMakeLists.txt .\bin\CMakeLists.txt
+if exist .\conanfile.txt xcopy /q /i /e /y .\conanfile.txt .\bin\conanfile.txt
+
+:conan
+conan install --build missing
+goto cmake
+
+:cmake
+cmake .. -G "Visual Studio 15 2017 Win64"
+goto end
+
+:changetobin
+cd bin
+goto start
+
+:end
+if exist bin goto quit
+cd ..
+goto quit
+
+:quit
+echo.
+echo.
+echo INFO: Conan and CMake ran successfully. Open up your solution file (listed below) to open your project.
+echo.
+dir /b *.sln

conanfile.txt

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+[requires]
+SDL2/2.0.5@dotfloat/stable
+glew/2.0.0@coding3d/stable
+glm/0.9.7.6@dlarudgus20/stable
+
+[options]
+SDL2:shared=True
+glew:shared=False
+
+[generators]
+cmake
+
+[imports]
+bin, *.dll -> ./bin # Copies all dll files from packages bin folder to my "bin" folder
+lib, *.dylib* -> ./bin # Copies all dylib files from packages lib folder to my "bin" folder

src/main.cpp

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+#pragma once
+
+#include <cstdio>
+#include <cstdlib>
+#include <iostream>
+#include <algorithm>
+#include <fstream>
+#include <ctime>
+#include <vector>
+#include <string>
+#include <sstream>
+#include <iomanip>
+#include <stdexcept>
+#include <map>
+
+//GLEW
+#include <GL/glew.h>
+#include "windows.h"
+
+//OGL Maths
+#define GLM_FORCE_RADIANS // use radians
+#include <glm/glm.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+
+#include "SDL.h"
+
+#undef main
+
+SDL_Window* win;
+SDL_GLContext context;
+GLenum glew;
+std::vector<glm::vec3> points;
+std::vector<glm::vec4> colors;
+//constants
+const float sigma = 10;
+const float beta = 8.0 / 3.0;
+const float rho = 28;
+const float dt = 0.02;
+bool run = true;
+SDL_DisplayMode DM;
+float x, y, z;
+float r = 0, g = 0, b = 0;
+bool rotate = false;
+
+int init()
+{
+	if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
+	{
+		printf("%s\n", SDL_GetError());
+		system("pause");
+		return 1;
+	}
+
+	SDL_GetDesktopDisplayMode(0, &DM);
+
+	win = SDL_CreateWindow("Lorenz Attractor", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, DM.w/2, DM.h/2, SDL_WINDOW_OPENGL);
+	if (win == nullptr)
+	{
+		printf("%s\n", SDL_GetError());
+		system("pause");
+		return 1;
+	}
+
+	glew = glewInit();
+	
+	context = SDL_GL_CreateContext(win);
+
+	points.push_back({ 1.0, 1.0, 1.0 });
+
+	float scalesize = 0.015;
+
+	glScalef(scalesize,scalesize,scalesize);
+
+	//glPointSize(2.5);
+	
+	return 0;
+}
+float amount = 0.01;
+glm::vec3 getCol()
+{
+	r += amount;
+	if (r > 1)
+	{
+		r = 1;
+		g += amount;
+		if (g > 1)
+		{
+			g = 0;
+			b += amount;
+			if (b > 1)
+			{
+				r = 0;
+				g = 0;
+				b = 0;
+			}
+		}
+	}
+	return { r, g, b };
+}
+
+void process()
+{
+	SDL_Event evnt;
+	if (SDL_PollEvent(&evnt))
+	{
+		if (evnt.type == SDL_QUIT)
+		{
+			run = false;
+		}
+		if (evnt.type == SDL_KEYDOWN)
+		{
+			if (evnt.key.keysym.sym == SDLK_SPACE)
+			{
+				if (rotate)
+					rotate = false;
+				else
+					rotate = true;
+			}
+		}
+	}
+}
+
+void update()
+{
+	glm::vec3 point = points.back();
+
+	float dx = (sigma * (point.y - point.x)) * dt;
+	float dy = (point.x * (rho - point.z) - point.y) * dt;
+	float dz = (point.x * point.y - beta * point.z) * dt;	
+
+	x = x + dx;
+	y = y + dy;
+	z = z + dz;
+
+	glm::vec3 col = getCol();
+	points.push_back(glm::vec3(x,y,z));
+	colors.push_back(glm::vec4(col, 1));
+
+	printf("x: %f , y: %f, z: %f , r: %f , g: %f , b: %f", x, y, z, col.x, col.y, col.z);
+	printf("\n");
+}
+
+void draw()
+{
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+			
+	glEnableClientState(GL_VERTEX_ARRAY);
+	glEnableClientState(GL_COLOR_ARRAY);
+	glVertexPointer(3, GL_FLOAT, 0, &points[0]);
+	glColorPointer(4, GL_FLOAT, 0, &colors[0]);
+	glDrawArrays(GL_LINE_LOOP, 0, points.capacity());
+	glDisableClientState(GL_VERTEX_ARRAY);
+	glDisableClientState(GL_COLOR_ARRAY);
+
+	if(rotate)
+		glRotatef(1, 0, 1, 0);
+
+	SDL_GL_SwapWindow(win);
+}
+
+int main()
+{
+	if (init() != 0)
+		return 1;
+
+	while (run)
+	{
+		process();
+		update();
+		draw();
+	}
+
+	SDL_GL_DeleteContext(context);
+
+	SDL_Quit();
+
+	return 0;
+}