func NewChunk(parentObject *engine.Object, size int, ts *Tileset) *Chunk {
chk := &Chunk{
Size: size,
Tileset: ts,
Data: make([]*Voxel, size*size*size),
vao: render.CreateVertexArray(),
vbo: render.CreateVertexBuffer(),
}
chk.ComponentBase = engine.NewComponent(parentObject, chk)
return chk
}
func NewPlacementGrid(parentObject *engine.Object) *PlacementGrid {
pg := &PlacementGrid{
mesh: geometry.CreateLines(),
Chunk: nil,
}
pg.ComponentBase = engine.NewComponent(parentObject, pg)
// find chunk
obj, exists := parentObject.GetComponent(pg.Chunk)
if !exists {
panic("no chunk component")
}
chunk := obj.(*ColorChunk)
// compute grid mesh
pg.Chunk = chunk
pg.Y = chunk.Size - 1
pg.Compute()
return pg
}