void terrain::setTerrainSize(btVector3 size)
{
if(size == m_terrainSize) return;
btVector3 modscale = (size - m_terrainSize) / m_terrainSize; // the difference between the new and old size divided by the old size
if(m_terrainSize.z() == 0) modscale.setZ(size.z()); // incase of NAN
m_terrainMinHeight = m_terrainMaxHeight = 0;
for(int i=0; i<m_terrainVertexCount; i++){
m_terrainVerts[i].x += modscale.x() * m_terrainVerts[i].x;
m_terrainVerts[i].y += modscale.y() * m_terrainVerts[i].y;
if(m_terrainSize.z() == 0)
m_terrainVerts[i].z = size.z();
else
m_terrainVerts[i].z += modscale.z() * m_terrainVerts[i].z;
if(m_terrainVerts[i].z > m_terrainMaxHeight)
m_terrainMaxHeight = m_terrainVerts[i].z;
else if(m_terrainVerts[i].z < m_terrainMinHeight)
m_terrainMinHeight = m_terrainVerts[i].z;
}
buildNormals();
m_terrainSize = size;
tTool->setSize(m_terrainSize);
m_parent->printText(QString("Terrain Resized %1,%2,%3").arg(m_terrainSize.x()).arg(m_terrainSize.y()).arg(m_terrainSize.z()));
this->terrainRefresh();
emit newTerrain();
}
/////////////////////////////////////////
// Terrain file slots
/////////////
void terrain::openTerrain(QString filename)
{
if(filename == NULL){
// open an Open File dialog to look for a PNG image to represent a height map
filename = QFileDialog::getOpenFileName(m_parent,tr("Open Terrain"), tr("/Users"),tr("Image File (*.png)"));
if(filename == NULL) return; // if cancel is pressed dont do anything
}
QFileInfo terrainInfo(filename);
this->terrainClear();
m_terrainFilename = filename;
m_terrainSize = tTool->getSize(); // set the terrain size, loading a file will overwrite it
if(filename != NULL && filename != "NULL" && terrainLoadFile()) // image data is good create terrain
{
m_terrainShortname = terrainInfo.baseName();
this->generateGround();
}
else { // no image file, create flat terrain
m_terrainShortname = "NULL";
m_terrainFilename = "NULL";
this->terrainCreateMesh(NULL);
this->generateGround();
}
m_parent->printText("Terrain Loaded: " + terrainInfo.baseName());
m_terrainModified = false;
emit newTerrain();
}
AS3_Val initializeTerrain( void * self, AS3_Val args )
{
Entity * entity;
Material * material;
Texture * texture;
Bitmap * map;
double width, height, maxHeight;
int addressMode;
DWORD render_mode;
Terrain* terrain;
AS3_ArrayValue( args, "PtrType, PtrType, PtrType, PtrType, DoubleType, DoubleType, DoubleType, IntType, IntType",
& entity, & map, & material, & texture, & width, & height, & maxHeight, & render_mode, & addressMode );
terrain = newTerrain( entity, map, ( float )width, ( float )height, ( float )maxHeight, material, texture, render_mode, addressMode );
return AS3_Ptr(terrain);
}
void terrain::flattenTerrain()
{
this->terrainClear();
this->openTerrain("NULL");
emit newTerrain();
}
