Map Tile Action Classes

Back to the MSQ Block page =Map Tile Action Classes= The first map layer is a nibble which defines what kind of action to perform when the tile is entered. There may be other implications of this as well. Thanks to its layout, this layer is also known as the "map nibble data". There are sixteen options (thanks to the fact a nibble is 4-bits long). This may change, but here are the current opinions on what the various action classes mean.

NOTE 1: When a tile has no action or trigger, then it has an action of '00', so therefore Action Class 0's entry in the action class master table section of the Central MSQ Directory is a pointer to NULL.

NOTE 2: There is a pointer at offset 10h, its used with nibble 06. Its used as pointers inside the code to routines to execute depending on what the nibble is to do.