Added Game Of Life

OneLoneCoder_GameOfLife.cpp

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+/*
+OneLoneCoder.com - What are Cellular Automata? John Conway's Game Of Life
+"Get lost..." - @Javidx9
+
+Disclaimer
+~~~~~~~~~~
+I don't care what you use this for. It's intended to be educational, and perhaps
+to the oddly minded - a little bit of fun. Please hack this, change it and use it
+in any way you see fit. BUT, you acknowledge that I am not responsible for anything
+bad that happens as a result of your actions. However, if good stuff happens, I
+would appreciate a shout out, or at least give the blog some publicity for me.
+Cheers!
+
+Background
+~~~~~~~~~~
+Sometimes, its worth reflecting on the fact that from simple things can emerge
+significant beauty. This is an implementaion of Game Of Life that runs in the console
+
+Author
+~~~~~~
+Twitter: @javidx9
+Blog: www.onelonecoder.com
+
+Video:
+~~~~~~
+https://youtu.be/E7CxMHsYzSs
+
+Last Updated: 14/07/2017
+*/
+
+#include <iostream>
+using namespace std;
+
+#include "olcConsoleGameEngine.h"
+
+class OneLoneCoder_GameOfLife : public olcConsoleGameEngine
+{
+public:
+	OneLoneCoder_GameOfLife()
+	{
+		m_sAppName = L"Game Of Life";
+	}
+
+private:
+	int *m_output;
+	int *m_state;
+
+
+
+protected:
+	// Called by olcConsoleGameEngine
+	virtual bool OnUserCreate()
+	{
+		m_output = new int[ScreenWidth() * ScreenHeight()];
+		m_state = new int[ScreenWidth() * ScreenHeight()];
+
+		memset(m_output, 0, ScreenWidth() * ScreenHeight() * sizeof(int));
+		memset(m_state, 0, ScreenWidth() * ScreenHeight() * sizeof(int));
+
+		for (int i = 0; i < ScreenWidth()*ScreenHeight(); i++)
+			m_state[i] = rand() % 2;
+
+		auto set = [&](int x, int y, wstring s)
+		{
+			int p = 0;
+			for (auto c : s)
+			{
+				m_state[y*ScreenWidth() + x + p] = c == L'#' ? 1 : 0;
+				p++;
+			}
+		};
+
+		/*
+		// R-Pentomino
+		set(80, 50, L"  ## ");
+		set(80, 51, L" ##  ");
+		set(80, 52, L"  #  ");
+
+		// Gosper Glider Gun
+		set(60, 45, L"........................#............");
+		set(60, 46, L"......................#.#............");
+		set(60, 47, L"............##......##............##.");
+		set(60, 48, L"...........#...#....##............##.");
+		set(60, 49, L"##........#.....#...##...............");
+		set(60, 50, L"##........#...#.##....#.#............");
+		set(60, 51, L"..........#.....#.......#............");
+		set(60, 52, L"...........#...#.....................");
+		set(60, 53, L"............##.......................");
+
+		// Infinite Growth
+		set(20, 50, L"########.#####...###......#######.#####");
+		*/
+
+		return true;
+	}
+
+	
+
+	// Called by olcConsoleGameEngine
+	virtual bool OnUserUpdate(float fElapsedTime)
+	{
+		//this_thread::sleep_for(50ms);
+
+		//if (!m_keys[VK_SPACE].bReleased)
+		//	return true;
+		
+		auto cell = [&](int x, int y)
+		{
+			return m_output[y * ScreenWidth() + x];
+		};
+
+		// Store output state
+		for (int i = 0; i < ScreenWidth()*ScreenHeight(); i++)
+			m_output[i] = m_state[i];
+				
+		for (int x = 1; x < ScreenWidth() - 1; x++)
+			for (int y = 1; y < ScreenHeight() - 1; y++)
+			{
+				// The secret of artificial life =================================================
+				int nNeighbours =	cell(x - 1, y - 1) + cell(x - 0, y - 1) + cell(x + 1, y - 1) +
+									cell(x - 1, y + 0) +          0         + cell(x + 1, y + 0) +
+									cell(x - 1, y +	1) + cell(x + 0, y + 1) + cell(x + 1, y + 1);
+
+				if (cell(x, y) == 1)
+					m_state[y*ScreenWidth() + x] = nNeighbours == 2 || nNeighbours == 3;
+				else
+					m_state[y*ScreenWidth() + x] = nNeighbours == 3;
+				// ===============================================================================
+
+
+				if (cell(x, y) == 1)
+					Draw(x, y, PIXEL_SOLID, FG_WHITE);
+				else
+					Draw(x, y, PIXEL_SOLID, FG_BLACK);
+			}
+
+		return true;
+	}
+};
+
+
+int main()
+{
+	// Seed random number generator
+	srand(clock());
+
+	// Use olcConsoleGameEngine derived app
+	OneLoneCoder_GameOfLife game;
+	game.ConstructConsole(160, 100, 8, 8);
+	game.Start();
+
+	return 0;
+}