start 380 project5

changes to 380 project 4
changes to 350 project 2

Signed-off-by: Amrit Panesar <apanesar@4195tech.com>

COM380/Project5/GambleKit/Engine/Game/ReelModels/GkGameReelRandomModel.cpp

@@ -0,0 +1,117 @@
+//--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+//	GambleKit Copyright (C) 2014 Ivan Donev
+//
+//	This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
+//
+//	This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+//
+//	You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+//	contact: gamblekit@gmail.com
+//--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+#include "GkGameReelRandomModel.h"
+
+#include "..\..\Utils\GkMaths.h"
+
+
+GkGameReelRandomModel::GkGameReelRandomModel(int numItems, int numSymbols)
+	:GkGameReelModel(numItems)
+{
+	this->numSymbols = numSymbols;
+	this->symbols = new GameReelRandomModelSymbol[numSymbols];
+
+	for (int i = 0; i < numSymbols; i++)
+		this->SetupSymbol(i, i);
+}
+
+
+GkGameReelRandomModel::~GkGameReelRandomModel(void)
+{
+	delete[] this->symbols;
+}
+
+
+void GkGameReelRandomModel::SetupSymbol(int symbolIndex, int symbolValue, int hitProbability, int maxHits)
+{
+	this->symbols[symbolIndex].value = symbolValue;
+	this->symbols[symbolIndex].hitProbability = hitProbability;
+	this->symbols[symbolIndex].maxHits = maxHits;
+
+	this->overallProbability = 0;
+	for (int i = 0; i < this->numSymbols; i++)
+		this->overallProbability += this->symbols[i].hitProbability;
+}
+
+bool GkGameReelRandomModel::ReplaceReelSymbol(int itemIndex, int symbolIndex, bool forceReplace)
+{
+	bool autoGenerate = symbolIndex == -1;
+
+	do
+	{
+		if (autoGenerate)
+		{
+			symbolIndex = this->GetSymbolIndex();
+		}
+
+		if ((this->symbols[symbolIndex].maxHits == GkGameReelRandomModel::UnlimitedHits) || (this->symbols[symbolIndex].occurances < this->symbols[symbolIndex].maxHits) || forceReplace)
+		{
+			this->symbols[this->items[itemIndex]].occurances--;
+			this->items[itemIndex] = symbolIndex;
+			this->symbols[symbolIndex].occurances++;
+			return true;
+		}
+	} while (autoGenerate);
+
+	return false;
+}
+
+int GkGameReelRandomModel::GetSymbolIndex()
+{
+	int p = GkMaths::Random(this->overallProbability);
+
+	int s = 0;
+	for (int i = 0; i < this->numSymbols; i++)
+	{
+		s += this->symbols[i].hitProbability;
+		if (p < s)
+			return i;
+	}
+
+	return -1;
+}
+
+int GkGameReelRandomModel::GetSymbol()
+{
+	int symbolIndex = this->GetSymbolIndex();
+	if (symbolIndex == -1)
+		return -1;
+	else
+		return this->symbols[symbolIndex].value;
+}
+
+void GkGameReelRandomModel::GenerateReel()
+{
+	for (int symbolIndex = 0; symbolIndex < this->numSymbols; symbolIndex++)
+		this->symbols[symbolIndex].occurances = 0;
+
+
+	for (int itemIndex = 0; itemIndex < this->numItems; itemIndex++)
+	{
+		for (;;)
+		{
+			int symbolIndex = this->GetSymbolIndex();
+			if ((this->symbols[symbolIndex].maxHits == GkGameReelRandomModel::UnlimitedHits) || (this->symbols[symbolIndex].occurances < this->symbols[symbolIndex].maxHits))
+			{
+				this->items[itemIndex] = this->symbols[symbolIndex].value;
+				this->symbols[symbolIndex].occurances++;
+				break;
+			}
+		}
+	}
+}
+
+void GkGameReelRandomModel::GenerateReelZero()
+{
+	this->GenerateReel();
+}