/Tools/TrolleyKey.foocad

import static uk.co.nickthecoder.foocad.chamferedextrude.v1.ChamferedExtrude.*

/**
    A tool to unlock trollies, that you can keep on your key-ring.

    Use the Customiser to change the values to mimic any coin.

Print Notes :
    I printed mine solid, as I didn't want it to break while in the trolley!

Usage :
    Insert the key, take your trolley, then swing the key round and pull it out.
    Make sure you take the trolley back after shopping! (Don't be a d**k)
*/
class TrollyKey : Model {

    @Custom
    var label = "£"
    @Custom    
    var diameter = 22.45
    @Custom    
    var thickness = 3.0
    
    // The handle's length, and width (at the shoulder)
    @Custom    
    var handleSize = Vector2( 35, 6 )
    @Custom    
    var holeDiameter = 4.0
    @Custom    
    var chamfer = 0.5

    override fun build() : Shape3d {

        val coin = Circle( diameter/2 )
        val shoulder = Circle( diameter /2 - handleSize.y/2 )
            .rightTo( -diameter*0.12 ).frontTo( handleSize.y/2 )

        val handleY2 = handleSize.y / 2 + holeDiameter/2
        val handle = PolygonBuilder().apply {
            moveTo(shoulder.middle.x+1, handleSize.y/2)
            lineTo( -handleSize.x, handleY2 )
            circularArcTo( -handleSize.x, -handleY2, handleY2, true, true )
            lineTo( shoulder.middle.x+1, -handleSize.y/2 )
        }.build()

        
        val hole = Circle( holeDiameter/2 ).chamferedExtrude( thickness, -chamfer )
            .leftTo( handle.left + 1.5 )

        val profile = coin - shoulder.mirrorY().also() + handle
        val text = Text( label ).center().translateX(diameter*0.07).extrude( 0.6 ).topTo( thickness + 0.1 )
        val result = profile.chamferedExtrude( thickness, chamfer ) - hole - text
        
        return result
    }

    override fun toString() = "Label : $label"
}