integers in the range [0, 15] fit entirely in the bit mask 0x000F. integers out of that range will have at least one bit 0x0010 or higher, or will have the sign bit 0x8000 set. so to find out if one of two numbers is out of range [0, 15], we can check the bit mask of their bitwise or.
this saves tokens and cycles. it is also completely illegible. very in the spirit of Pico-8, I love it.
Also adds a placeholder level 8, which will eventually become my general physics experimentation box and I'll start making levels in 9 and later.
Reviewed-on: pyrex/chameleonic#9
Co-authored-by: Kistaro Windrider <kistaro@gmail.com>
Co-committed-by: Kistaro Windrider <kistaro@gmail.com>
Add "dotted lines" spacing out level placement in the map. Also crudely drawn ID numbers.
Write a crappy level selector for debug/dev purposes.
Reviewed-on: pyrex/chameleonic#8
Co-authored-by: Kistaro Windrider <kistaro@gmail.com>
Co-committed-by: Kistaro Windrider <kistaro@gmail.com>
This gets rid of the (substantial!) overhead of preparing a list and then iterating over it, in exchange for a bit of bookkeeping to simulate the prior behavior of the for loop, which is much cheaper.
Reviewed-on: pyrex/chameleonic#4
Co-authored-by: Kistaro Windrider <kistaro@gmail.com>
Co-committed-by: Kistaro Windrider <kistaro@gmail.com>
Some of these are pure token optimizations, some spend tokens for performance. Function calls are particularly expensive in Pico-8, so using the table form of `pal` whenever changing multiple colors seems worth it.
Also fixes a bug in palette swapping.
Reviewed-on: pyrex/chameleonic#3
Co-authored-by: Kistaro Windrider <kistaro@gmail.com>
Co-committed-by: Kistaro Windrider <kistaro@gmail.com>
kistaro
