fset

fset

fset index flag bool

Parameters:

• index : sprite index
• flag : index of flag (0-7)
• bool : What state to set the flag, true or false

Description:

Each sprite has eight flags which can be used to store information or signal different conditions. For example, flag 0 might be used to indicate that the sprite is invisible, flag 6 might indicate that the flag should be draw scaled etc.

See also

• fget (0.80)

Example:

-- title:  fset/fget example
-- author: PaulR
-- script: lua

-- create a new cart
-- use keyboard 'z' and 'x' to toggle
-- flags 4 and 6 of sprite #1 
-- between true/false


function TIC()
  cls(14)
  if btnp(4) then fset(1,4,not fget(1,4)) end
  if btnp(5) then fset(1,6,not fget(1,6)) end	
  -- show sprite if flag 4 is true
  if fget(1,4) then
    -- scale up if flag 6 is true
    if fget(1,6) then
      spr(1,0,0,-1,2)
    else
      spr(1,0,0,-1,1)
    end
  end
end