func (self *ArrayVoxelField) AddValue(from, to v.Vector3i, eval VoxelFunc) {
from.SubIP(v.Vector3i{self.translateX, self.translateY, self.translateZ})
to.SubIP(v.Vector3i{self.translateX, self.translateY, self.translateZ})
for z := from.Z; z < to.Z; z++ {
for y := from.Y; y < to.Y; y++ {
for x := from.X; x < to.X; x++ {
if x < 0 || y < 0 || z < 0 ||
x >= self.sizeX || y >= self.sizeY || z >= self.sizeZ {
continue
}
id := x + y*self.sizeX + z*self.sizeX*self.sizeY
v := int(self.data[id]) + eval(x+self.translateX, y+self.translateY, z+self.translateZ)
if v < 0 {
v = 0
} else if v > 255 {
v = 255
}
self.data[id] = byte(v)
}
}
}
}
func (s *VoxelsMesh) UpdatePoint(point v.Vector3i) {
b := point.Div3I(s.config.BlockSize)
b.Sub(s.blockStart)
baSize := s.config.BlockArraySize
if b.X < 0 || b.X >= baSize.X ||
b.Y < 0 || b.Y >= baSize.Y ||
b.Z < 0 || b.Z >= baSize.Z {
return
}
id := b.X + b.Y*baSize.X + b.Z*baSize.X*baSize.Y
s.blockArray[id].State = VMB_DIRTY
}