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https://gitea.wildfiregames.com/0ad/0ad
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78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
/* Copyright (C) 2021 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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#ifndef INCLUDED_MINIMAPTEXTURE
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#define INCLUDED_MINIMAPTEXTURE
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#include "lib/ogl.h"
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class CSimulation2;
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class CTerrain;
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class CMiniMapTexture
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{
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NONCOPYABLE(CMiniMapTexture);
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public:
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CMiniMapTexture(CSimulation2& simulation);
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~CMiniMapTexture();
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/**
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* Marks the texture as dirty if it's old enough to redraw it on Render.
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*/
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void Update(const float deltaRealTime);
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/**
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* Redraws the texture if it's dirty.
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*/
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void Render();
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GLuint GetTerrainTexture() const { return m_TerrainTexture; }
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GLsizei GetTerrainTextureSize() const { return m_TextureSize; }
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/**
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* @return The maximum height for unit passage in water.
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*/
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static float GetShallowPassageHeight();
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private:
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void CreateTextures();
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void DestroyTextures();
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void RebuildTerrainTexture(const CTerrain* terrain);
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CSimulation2& m_Simulation;
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bool m_Dirty = true;
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// minimap texture handles
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GLuint m_TerrainTexture = 0;
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// texture data
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u32* m_TerrainData = nullptr;
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// map size
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ssize_t m_MapSize = 0;
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// texture size
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GLsizei m_TextureSize = 0;
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// Maximal water height to allow the passage of a unit (for underwater shallows).
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float m_ShallowPassageHeight = 0.0f;
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float m_WaterHeight = 0.0f;
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};
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#endif // INCLUDED_MINIMAPTEXTURE
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