itch.io

Don't know what you're trying to achieve.  Better to ask questions at SyntaxBomb as that is where most of the BlitzMax users have gone.

Anyway, I gave it a go here.

SuperStrict' drawline.bmx
' draws a hair at the mouse position using Drawline.
'A type for a single polygon
Type TPolygon
    Field Points:Float[]
End Type
'A polygon must be convex so we create a Shape type to
'  hold several polygons to make more complex shapes
Type TShape
    Field Polygons:TList = CreateList()
    
    'Adds a single polygon to the shape
    Method Add(Points:Float[])
        Local Polygon:TPolygon = New TPolygon
        Polygon.Points = Points
        Polygons.AddLast(Polygon)
    End Method
    
    'draws all the polygons
    Method Draw(x:Float, y:Float)
        Local OriginX:Float, OriginY:Float
        GetOrigin(OriginX, OriginY) 'store the origin
        SetOrigin x,y 'set the origin to the polygon's location
        For Local Polygon:TPolygon = EachIn Polygons 'draw the polygons
            DrawPoly Polygon.Points
        Next
        SetOrigin OriginX,OriginY 'restore the origin
    End Method
End Type
Local Star:TShape = New TShape 'create the star shape
Local Point:Float[] 'an array to hold each point of the star
For Local i:Int = 0 Until 5 '5 points
    Local Angle:Float = i * 72 - 90
    Point = New Float[6] 'create a new array to hold the points
    Point[0] = Cos(Angle) * 30
    Point[1] = Sin(Angle) * 30
    Point[2] = Cos(Angle+36) * 11.459
    Point[3] = Sin(ANgle+36) * 11.459
    Point[4] = Cos(Angle-36) * 11.459
    Point[5] = Sin(Angle-36) * 11.459
    Star.Add(Point)
Next
    
Graphics 640,480
HideMouse
While Not KeyHit(KEY_ESCAPE)
        Cls
        Local x:Int=MouseX()
        Local y:Int=MouseY()
        DrawLine 32,24,x,y
        Star.Draw(x,y)
        Flip
Wend