Added Programming The Matrix

Yay! 0x1FF Subscribers!

OneLoneCoder_Matrix.cpp

@@ -0,0 +1,146 @@
+/*
+OneLoneCoder.com - Programming The Matrix
+"Ribbet" - @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
+~~~~~~~~~~
+I hit 0x1FF subscribers, so celebrated with a live stream!
+
+Controls
+~~~~~~~~
+None, just spot the blonde, brunette, etc, etc...
+
+Author
+~~~~~~
+Twitter: @javidx9
+Blog: www.onelonecoder.com
+
+Video:
+~~~~~~
+https://youtu.be/s7EbrvA188A
+
+
+Last Updated: 17/09/2017
+*/
+
+#include <iostream>
+#include <string>
+using namespace std;
+
+#include "olcConsoleGameEngine.h"
+
+
+class OneLoneCoder_Matrix : public olcConsoleGameEngine
+{
+public:
+	OneLoneCoder_Matrix()
+	{
+		m_sAppName = L"Matrix";
+	}
+
+private:
+	struct sStreamer
+	{
+		int nColumn = 0;
+		float fPosition = 0;
+		float fSpeed = 0;
+		wstring sText;
+	};
+
+	list<sStreamer> listStreamers;
+
+	int nMaxStreamers = 300;
+
+	wchar_t RandomCharacter()
+	{
+		return (wchar_t)(rand() % 0x1EF + 0x00C0);
+		return (wchar_t)(rand() % 93 + 33); // Random ASCII
+	}
+
+	void PrepareStreamer(sStreamer *s)
+	{
+		s->nColumn = rand() % ScreenWidth();
+		s->fPosition = 0;
+		s->fSpeed = rand() % 40 + 5;
+		s->sText.clear();
+
+		int nStreamerLength = rand() % 80 + 10;
+		for (int i = 0; i < nStreamerLength; i++)
+			s->sText.append(1, RandomCharacter());
+
+		//s->sText = L"ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+	}
+
+
+protected:
+	// Called by olcConsoleGameEngine
+	virtual bool OnUserCreate()
+	{
+		for (int n = 0; n < nMaxStreamers; n++)
+		{
+			sStreamer s;
+			PrepareStreamer(&s);
+			listStreamers.push_back(s);
+		}
+		return true;
+	}
+
+	// Called by olcConsoleGameEngine
+	virtual bool OnUserUpdate(float fElapsedTime)
+	{
+		// Clear Screen
+		Fill(0, 0, ScreenWidth(), ScreenHeight(), PIXEL_SOLID, 0);
+
+		for (auto &s : listStreamers)
+		{
+			s.fPosition += fElapsedTime * s.fSpeed;			
+			for (int i = 0; i < s.sText.size(); i++)
+			{
+				// If you hate ternary operators do this
+				// start ->
+				short col = s.fSpeed < 15.0f ? FG_DARK_GREEN : FG_GREEN; // ;-)
+				if (i == 0)
+					col = FG_WHITE;
+				else
+					if (i <= 3)
+						col = FG_GREY;
+
+				int nCharIndex = (i - (int)s.fPosition) % s.sText.size();
+
+				Draw(s.nColumn, (int)s.fPosition - i, s.sText[nCharIndex], col);
+				// <- end
+
+				// If you like them, do this!
+				//Draw(s.nColumn, (int)s.fPosition - i, s.sText[(abs(i - (int)s.fPosition) % s.sText.size())], i == 0 ? FG_WHITE : i<=3 ? FG_GREY: i>=s.sText.size()-2 || s.fSpeed < 15.0f? FG_DARK_GREEN: FG_GREEN);
+				
+				// Missed this out on live stream, occasionally glitch a character
+				if (rand() % 1000 < 5)
+					s.sText[i] = RandomCharacter();
+			}
+
+			if ( s.fPosition - s.sText.size() >= ScreenHeight())
+				PrepareStreamer(&s);
+
+		}
+		return true;
+	}
+};
+
+
+int main()
+{
+	// Use olcConsoleGameEngine derived app
+	OneLoneCoder_Matrix game;
+	game.ConstructConsole(128, 80, 12, 12);
+	game.Start();
+	return 0;
+}