first commit

Minecraft.Client/Common/Tutorial/AreaConstraint.cpp

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+#include "stdafx.h"
+
+#include "..\..\Minecraft.h"
+#include "..\..\MultiplayerLocalPlayer.h"
+#include "AreaConstraint.h"
+#include "..\..\..\Minecraft.World\AABB.h"
+
+AreaConstraint::AreaConstraint( int descriptionId, double x0, double y0, double z0, double x1, double y1, double z1, bool contains /*= true*/, bool restrictsMovement /*=true*/ )
+	: TutorialConstraint( descriptionId )
+{
+	messageArea = AABB::newPermanent(x0+2, y0+2, z0+2, x1-2, y1-2, z1-2);
+	movementArea = AABB::newPermanent(x0, y0, z0, x1, y1, z1);
+
+	this->contains = contains;
+	m_restrictsMovement = restrictsMovement;
+}
+
+AreaConstraint::~AreaConstraint()
+{
+	delete messageArea;
+	delete movementArea;
+}
+
+bool AreaConstraint::isConstraintSatisfied(int iPad)
+{
+	Minecraft *minecraft = Minecraft::GetInstance();
+	return messageArea->contains( minecraft->localplayers[iPad]->getPos(1) ) == contains;
+}
+
+bool AreaConstraint::isConstraintRestrictive(int iPad)
+{
+	return m_restrictsMovement;
+}
+
+
+bool AreaConstraint::canMoveToPosition(double xo, double yo, double zo, double xt, double yt, double zt)
+{
+	if(!m_restrictsMovement) return true;
+
+	Vec3 *targetPos = Vec3::newTemp(xt, yt, zt);
+	Minecraft *minecraft = Minecraft::GetInstance();
+	
+	if(movementArea->contains( targetPos ) == contains)
+	{
+		return true;
+	}
+	Vec3 *origPos = Vec3::newTemp(xo, yo, zo);
+
+	double currDist = origPos->distanceTo(movementArea);
+	double targetDist = targetPos->distanceTo(movementArea);
+	return targetDist < currDist;
+}