void TerrainOverlay::RenderTileOutline(const CColor& colour, int line_width, bool draw_hidden, ssize_t i, ssize_t j)
{
if (draw_hidden)
{
glDisable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE);
}
else
{
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
}
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
if (line_width != 1)
glLineWidth((float)line_width);
CVector3D pos;
glBegin(GL_QUADS);
glColor4fv(colour.FloatArray());
m_Terrain->CalcPosition(i, j, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i+1, j, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i+1, j+1, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i, j+1, pos); glVertex3fv(pos.GetFloatArray());
glEnd();
if (line_width != 1)
glLineWidth(1.0f);
}
void TerrainOverlay::RenderTile(const CColor& colour, bool draw_hidden, ssize_t i, ssize_t j)
{
// TODO: if this is unpleasantly slow, make it much more efficient
// (e.g. buffering data and making a single draw call? or at least
// far fewer calls than it makes now)
if (draw_hidden)
{
glDisable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE);
}
else
{
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
}
#if CONFIG2_GLES
#warning TODO: implement TerrainOverlay::RenderTile for GLES
#else
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
CVector3D pos;
glBegin(GL_TRIANGLES);
glColor4fv(colour.FloatArray());
if (m_Terrain->GetTriangulationDir(i, j))
{
m_Terrain->CalcPosition(i, j, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i+1, j, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i, j+1, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i+1, j, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i+1, j+1, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i, j+1, pos); glVertex3fv(pos.GetFloatArray());
}
else
{
m_Terrain->CalcPosition(i, j, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i+1, j, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i+1, j+1, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i+1, j+1, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i, j+1, pos); glVertex3fv(pos.GetFloatArray());
m_Terrain->CalcPosition(i, j, pos); glVertex3fv(pos.GetFloatArray());
}
glEnd();
#endif
}