Isometric game

Mikkel

Member
Hello game developers.

I'm currently following a tutorial on youtube on how to make your own isometric game. Also I am very new to this programming language.
This error keeps showing every time I execute the game. How do I fix this?

Btw this is the youtuber I am following. Heres a link to his video...

___________________________________________
############################################################################################
ERROR in
action number 1
of Create Event
for object <undefined>:

DoAdd :1: undefined value
at gml_GlobalScript_TileToRoomY (line 3) - return ((_tX + _tY) * (TILE_H * 0.5));
############################################################################################
gml_GlobalScript_TileToRoomY (line 3)


Thanks in advance. ;)
 
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