Tiles and sprites

[MPN]

Is there a function that tells me what tile is underneath the current sprite? If not, do you have an example that could help me?

[oompa loompa]

i don't remember if there is actually a function for that (though i think there is one in my unreleased version), but anyways - you'll probably have to end up making some low levels routines that will deal with the vdp memory to read tiles

tile data is stored in vdp memory locations:

Scroll B = $E000 - $FFFF [8192 Bytes]
Scroll A = $C000 - $DFFF [8192 Bytes]

so, to read tile data, use (for plane b):


my_tile = VdpRamRead(&hE000 + (x<<6+y)<<1) [AND] &h07FF


oooor, if that doesn't work, then try (for plane a):


my_tile = VdpRamRead(&hC000 + (x<<6+y)<<1) [AND] &h07FF


this is all asuming that you don't scroll the planes around using the vdp scrolling features . i haven't tested thes routines hehe, so i wish you luck!

[oompa loompa]

wait, i'm stupid, there is a routine that does everything for you


my_tile = ReadTile(x,y)


i dunno if it works though too, and i think it might only be for v0.21 (or whatever the version is for the latest release)