Colors and Palettes

copy_palette(pal_a, pal_b)

Copies palette pal_a to palette pal_b.

pal_a and pal_b are in the range 0-7.

-- Copies palette 0 to palette 1
copy_palette(0, 1)

mask_color(color)

Makes color transparent.

Color can range from 0-127.

swap_colors(color_a, color_b)

NOTE: You can "un-swap" a color by swapping with itself: swap_colors(7, 7)

Turns color_a into color_b.

This does not affect areas of the screen which are already in color_a.

color_a and color_b range from 0 to 127.

swap_screen_colors(color_a, color_b)

NOTE: You can "un-swap" a color by swapping with itself: swap_screen_colors(7, 7)

Turns color_a into color_b.

This changes even colors which are already in the screen.

color_a and color_b range from 0 to 127.

rgba_color(color, value)

WARNING: Directly writing to the palette memory is very slow. Your game will stutter. Be sure to only use this function at startup or during static loading screens.

Sets color to a given rgb color.

The alpha channel is treated as binary, 0 will result in transparent, any other value in a solid color.

This updates colors already in the screen.

rgba_color(8, '\x00\xfc\xff\xff')