vladislavbelov
ffc4a56b9f
Fixes #6846 Differential Revision: https://code.wildfiregames.com/D5185 This was SVN commit r27965.
91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
/* Copyright (C) 2010 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* A patch of terrain holding NxN MiniPatch tiles
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*/
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#include "precompiled.h"
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#include "Patch.h"
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#include "Terrain.h"
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///////////////////////////////////////////////////////////////////////////////
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// CPatch constructor
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CPatch::CPatch()
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: m_Parent(0)
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{
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}
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///////////////////////////////////////////////////////////////////////////////
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// CPatch destructor
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CPatch::~CPatch()
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{
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}
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///////////////////////////////////////////////////////////////////////////////
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// Initialize: setup patch data
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void CPatch::Initialize(CTerrain* parent,ssize_t x,ssize_t z)
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{
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delete m_RenderData;
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m_RenderData=0;
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m_Parent=parent;
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m_X=x;
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m_Z=z;
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InvalidateBounds();
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}
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///////////////////////////////////////////////////////////////////////////////
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// CalcBounds: calculating the bounds of this patch
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void CPatch::CalcBounds()
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{
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m_WorldBounds.SetEmpty();
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for (ssize_t j=0;j<PATCH_SIZE+1;j++)
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{
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for (ssize_t i=0;i<PATCH_SIZE+1;i++)
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{
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CVector3D pos;
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m_Parent->CalcPosition(m_X*PATCH_SIZE+i,m_Z*PATCH_SIZE+j,pos);
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m_WorldBounds+=pos;
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}
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}
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// If this a side patch, the sides go down to height 0, so add them
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// into the bounds
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if (GetSideFlags())
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m_WorldBounds[0].Y = std::min(m_WorldBounds[0].Y, 0.f);
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}
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int CPatch::GetSideFlags()
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{
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int flags = 0;
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if (m_X == 0)
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flags |= CPATCH_SIDE_NEGX;
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if (m_Z == 0)
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flags |= CPATCH_SIDE_NEGZ;
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if (m_X == m_Parent->GetPatchesPerSide()-1)
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flags |= CPATCH_SIDE_POSX;
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if (m_Z == m_Parent->GetPatchesPerSide()-1)
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flags |= CPATCH_SIDE_POSZ;
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return flags;
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}
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