From 895afc162184f80b9c12e4a7042bd9e6680af30f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Atle=20Hellvik=20Havs=C3=B8?= <atle@havso.net>
Date: Sat, 20 Nov 2010 11:38:54 +0100
Subject: Created a Wall-class.
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Signed-off-by: Atle Hellvik Havsø <atle@havso.net>
---
 server/wall.cpp | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 server/wall.h   | 32 +++++++++++++++++++++++++++
 2 files changed, 100 insertions(+)
 create mode 100644 server/wall.cpp
 create mode 100644 server/wall.h

diff --git a/server/wall.cpp b/server/wall.cpp
new file mode 100644
index 0000000..b19d81a
--- /dev/null
+++ b/server/wall.cpp
@@ -0,0 +1,68 @@
+#include "wall.h"
+
+#include <boost/random/uniform_int.hpp>
+#include <boost/random/variate_generator.hpp>
+#include <ctime>
+
+#include <iostream>
+
+Wall::Wall() : rand_gen( std::time(0) ) {
+	
+	// The wall consists of 136 tiles in Riichi mahjong
+	num_tiles = 136;
+	
+	
+	// Awesome algorithm that loops trough a enum and creates a wall with 4 tiles of each type (and 1 red for each 5-tile(
+	for( Tile::Type current = Tile::Man_1; current <= Tile::Hatsu; current = Tile::Type( current + 1 )) {
+		
+		if(current == Tile::Man_5 || current == Tile::Pin_5 || current == Tile::Sou_5) {
+			
+			Tile tile1(current, true, false);
+			m_wall.push_back(tile1);
+			
+		} else {
+			
+			Tile tile1(current, false, false);
+			m_wall.push_back(tile1);
+			
+		}
+		
+		
+		Tile tile2(current, false, false);
+		Tile tile3(current, false, false);
+		Tile tile4(current, false, false);
+		
+		m_wall.push_back(tile2);
+		m_wall.push_back(tile3);
+		m_wall.push_back(tile4);
+		
+		#ifdef DEBUG
+		std::cout << "Added 4: " << tile2.type << std::endl;
+		#endif
+	}
+
+}
+
+bool Wall::is_done() {
+	if (num_tiles <= 14) {
+		return true;
+	} else {
+		return false;
+	}
+}
+
+Tile Wall::take_one() {
+	
+	boost::uniform_int<> range( 0, num_tiles - 1 );
+	
+	boost::variate_generator<boost::mt19937&, boost::uniform_int<> > die(rand_gen, range);
+	
+	int num = die();
+	
+	Tile to_return = m_wall[num];
+	m_wall.erase( m_wall.begin() + num);
+	
+	num_tiles--;
+	
+	return to_return;
+}
diff --git a/server/wall.h b/server/wall.h
new file mode 100644
index 0000000..8f864d0
--- /dev/null
+++ b/server/wall.h
@@ -0,0 +1,32 @@
+#ifndef WALL_H
+#define WALL_H
+
+#include "..\common\tile.h"
+
+#include <boost/random/mersenne_twister.hpp>
+#include <vector>
+
+
+class Wall {
+	private:
+	
+		//! Our random number generator. Initialized with a seed of the curren time that the object is constructed. 
+		boost::mt19937 rand_gen;
+	
+		//! Contains all the tiles in the wall
+		std::vector<Tile> m_wall;
+		
+		//! Contains the number of tiles left in the wall
+		int num_tiles;
+		
+	public:
+		Wall();
+		
+		//! Returns true if there's only 14 tiles left in the wall (Round ends)
+		bool is_done();
+		
+		//! Returns a random tile from the wall
+		Tile take_one();
+};
+
+#endif // WALL_H
-- 
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