forked from 0ad/0ad
109 lines
2.1 KiB
C++
109 lines
2.1 KiB
C++
#include "precompiled.h"
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#include "Brushes.h"
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#include "ps/Game.h"
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#include "ps/World.h"
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#include "graphics/Terrain.h"
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#include "lib/ogl.h"
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#include "maths/MathUtil.h"
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#include "renderer/TerrainOverlay.h"
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using namespace AtlasMessage;
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class BrushTerrainOverlay : public TerrainOverlay
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{
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public:
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BrushTerrainOverlay(const Brush* brush)
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: TerrainOverlay(300), m_Brush(brush)
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{
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}
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void GetTileExtents(
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int& min_i_inclusive, int& min_j_inclusive,
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int& max_i_inclusive, int& max_j_inclusive)
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{
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m_Brush->GetBottomLeft(min_i_inclusive, min_j_inclusive);
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m_Brush->GetTopRight(max_i_inclusive, max_j_inclusive);
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// But since brushes deal with vertices instead of tiles,
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// we don't want to include the top/right row
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--max_i_inclusive;
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--max_j_inclusive;
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}
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void ProcessTile(int i, int j)
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{
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int i0, j0;
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m_Brush->GetBottomLeft(i0, j0);
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// Colour this tile based on the average of the surrounding vertices
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float avg = (
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m_Brush->Get(i-i0, j-j0) + m_Brush->Get(i-i0+1, j-j0) +
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m_Brush->Get(i-i0, j-j0+1) + m_Brush->Get(i-i0+1, j-j0+1)
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) / 4.f;
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RenderTile(CColor(0, 1, 0, avg*0.8f), false);
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RenderTileOutline(CColor(1, 1, 1, 0.4f), 1, true);
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}
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const AtlasMessage::Brush* m_Brush;
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};
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Brush::Brush()
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: m_W(0), m_H(0), m_TerrainOverlay(NULL)
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{
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}
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Brush::~Brush()
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{
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delete m_TerrainOverlay;
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}
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void Brush::SetData(int w, int h, const std::vector<float>& data)
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{
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m_W = w;
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m_H = h;
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m_Data = data;
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}
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void Brush::GetCentre(int& x, int& y) const
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{
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CVector3D c = m_Centre;
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if (m_W % 2) c.X += CELL_SIZE/2.f;
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if (m_H % 2) c.Z += CELL_SIZE/2.f;
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i32 cx, cy;
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CTerrain::CalcFromPosition(c, cx, cy);
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x = cx;
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y = cy;
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}
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void Brush::GetBottomLeft(int& x, int& y) const
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{
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GetCentre(x, y);
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x -= (m_W-1)/2;
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y -= (m_H-1)/2;
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}
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void Brush::GetTopRight(int& x, int& y) const
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{
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GetBottomLeft(x, y);
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x += m_W-1;
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y += m_H-1;
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}
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void Brush::SetRenderEnabled(bool enabled)
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{
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if (enabled && !m_TerrainOverlay)
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{
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m_TerrainOverlay = new BrushTerrainOverlay(this);
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}
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else if (!enabled && m_TerrainOverlay)
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{
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delete m_TerrainOverlay;
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m_TerrainOverlay = NULL;
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}
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}
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Brush AtlasMessage::g_CurrentBrush;
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