Changes
/* Types of pseudo 3D */
** Backgrounds or graphics in such projection are easily obtained in Mode0 as it need an oblique matrix with a scale of 1vertical for 2 horizontal. Sadly the blocky pixels of Mode0 don't enable to do finely detailed sprites
**Sadly this kind of projection bring some problems concerning the diagonals and control as we'll see later.
*'''Oblique 135°/135°/92° projection :'''Itis It is some sort of Mode1 isometric. In this, the ratio for the diagonal grid is 1 for 1. This was sometimes used in some Speccy originated games as this enable to put more tiles or elements on the horizontally limited speccy Speccy resolution **Exemple Example : '''W*H*B''', a modern Bloxorz' Clone on ZXSpectrum.**A More CPC oriented exemple example game is probably '''Frontiers''' (Zafiro Software (1988)).
==Masked sprites==
