// attempt to place the specified terrain tile at the specified (x,z) position, with consistency checks
bool TryToAddTerrain(int tileX, int tileZ, Terrain terrain)
{
bool added = false;
if (terrain != null)
{
Terrain existing = GetTerrain(tileX, tileZ);
if (existing != null)
{
// already a terrain in the location -- check it is the same tile
if (existing != terrain)
{
// ERROR - multiple different terrains at the same coordinate!
m_errorCode |= TerrainMapStatusCode.Overlapping;
}
}
else
{
// add terrain to the terrain map
AddTerrainInternal(tileX, tileZ, terrain);
added = true;
}
}
return(added);
}
void ValidateTerrain(int tileX, int tileZ)
{
Terrain terrain = GetTerrain(tileX, tileZ);
if (terrain != null)
{
// grab neighbors (according to grid)
Terrain left = GetTerrain(tileX - 1, tileZ);
Terrain right = GetTerrain(tileX + 1, tileZ);
Terrain top = GetTerrain(tileX, tileZ + 1);
Terrain bottom = GetTerrain(tileX, tileZ - 1);
// check edge alignment
{
if (left)
{
if (!Mathf.Approximately(terrain.transform.position.x, left.transform.position.x + left.terrainData.size.x) ||
!Mathf.Approximately(terrain.transform.position.z, left.transform.position.z))
{
// unaligned edge, tile doesn't match expected location
m_errorCode |= TerrainMapStatusCode.EdgeAlignmentMismatch;
}
}
if (right)
{
if (!Mathf.Approximately(terrain.transform.position.x + terrain.terrainData.size.x, right.transform.position.x) ||
!Mathf.Approximately(terrain.transform.position.z, right.transform.position.z))
{
// unaligned edge, tile doesn't match expected location
m_errorCode |= TerrainMapStatusCode.EdgeAlignmentMismatch;
}
}
if (top)
{
if (!Mathf.Approximately(terrain.transform.position.x, top.transform.position.x) ||
!Mathf.Approximately(terrain.transform.position.z + terrain.terrainData.size.z, top.transform.position.z))
{
// unaligned edge, tile doesn't match expected location
m_errorCode |= TerrainMapStatusCode.EdgeAlignmentMismatch;
}
}
if (bottom)
{
if (!Mathf.Approximately(terrain.transform.position.x, bottom.transform.position.x) ||
!Mathf.Approximately(terrain.transform.position.z, bottom.transform.position.z + bottom.terrainData.size.z))
{
// unaligned edge, tile doesn't match expected location
m_errorCode |= TerrainMapStatusCode.EdgeAlignmentMismatch;
}
}
}
}
}
void AddTerrainInternal(int x, int z, Terrain terrain)
{
if (m_terrainTiles.Count == 0)
{
m_patchSize = terrain.terrainData.size;
}
else
{
// check consistency with existing terrains
if (terrain.terrainData.size != m_patchSize)
{
// ERROR - terrain is not the same size as other terrains
m_errorCode |= TerrainMapStatusCode.SizeMismatch;
}
}
m_terrainTiles.Add(new TerrainTileCoord(x, z), terrain);
}
public TerrainMap()
{
m_errorCode = TerrainMapStatusCode.OK;
m_terrainTiles = new Dictionary <TerrainTileCoord, Terrain>();
}