numVerts()

Purpose

Find the number of vertices (points) in a shape

Description

Returns the number of vertices (points) in a shape drawn with drawShape()

Syntax

points = numVerts( shape )

Arguments

shape Handle which stores the shape in question

points Integer number of vertices (points) in the shape

Example

c = controls( 0 )
oldc = controls( 0 )

gw = gWidth()
gh = gHeight()

points = [
    { random( gw ), random( gh ) + 100 },
    { random( gw ), random( gh ) + 100 },
    { random( gw ), random( gh ) + 100 }
]

shape = createPoly( points )
vertices = numVerts( shape )

loop
    clear()
    c = controls( 0 )
    if c.a and !oldc.a then
        points[len( points )] = { random( gw ), random( gh ) + 100 }
        deleteShape( shape )
        shape = createPoly( points )
        vertices = numVerts( shape )
        for i = 0 to vertices loop
            setVertexColour( shape, i, { random( 1.0 ), random( 1.0 ), random( 1.0 ), 1 } )
        repeat
    endif
    drawShape( shape )
    printAt( 0, 0, "Press the A button to add a vertex. Current vertex count: ", vertices )
    oldc = c
    update()
repeat

Associated Commands