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en:spritepoly

Spritepoly (Statement)

Format

spritepoly sprite_numberinteger expression representing one of the currently dimensioned sprites, variable[]
spritepoly ( sprite_number, variable[] )
spritepoly sprite_number, { x1, y1, x2, y2, x3, y3 ... }
spritepoly ( sprite_number, { x1, y1, x2, y2, x3, y3 ... } )
spritepoly sprite_number, { {x1, y1}, {x2, y2}, {x3, y3} ... }
spritepoly ( sprite_number, { {x1, y1}, {x2, y2}, {x3, y3} ... } )

Description

Create a sprite from a list of points that represent a polygon. The top left corner of the polygon should be (0,0). The sides of the polygon are defined by the values stored in the array, which should be stored as x,y pairs, sequentially. The length of a one dimensional array/2 or the number of rows on a two dimensional array will define the number of points.

One dimensional arrays and lists must have at least six values and an even number of values. A two dimensional array may have 3 or more rows but must have two columns.

Example

# create an arrow that spins and follows the mouse
spritedim 1
color darkblue, blue
penwidth 2
spritepoly 0, {15,0, 30,10, 25,10, 25,30, 5,30, 5,10, 0,10}

color grey
rect 0,0,300,300
spriteshow 0
s = 1
ds = .1
r = 0
while true
   spriteplace 0, mousex, mousey, s, r
   r = r + .1
   if s > 5 or s < 1 then ds = ds * -1
   s = s + ds
   pause .1
end while

See Also

Poly,

History

0.9.9.70New To Version
1.99.99.55two dimensional list support was added
1.99.99.72added required [] to passing variable array
en/spritepoly.txt · Last modified: 2016/11/07 12:20 by admin