basic_bitch_grappling_hook.txt

@name basic bitch grappling hook
@inputs  Active:number
@outputs 
@persist END:entity ENDPOINT_MODEL:string START_ANGLE:angle SPEED:number
@persist Anchored:number
@trigger Active

if( first() ){
    propSpawnUndo(0)
    
    SPEED          = 20
    ENDPOINT_MODEL = "models/props_junk/Shovel01a.mdl"
    START_ANGLE    = ang(180,0,0)
    
    Anchored = 0
}

function spawnGrapple(){
    END = propSpawn(ENDPOINT_MODEL, entity():pos(), entity():toWorld(START_ANGLE), 1)
    END:parentTo( entity() )
}


event tick(){
    if( !END:isValid() ){
        spawnGrapple()
        exit()
    }

    if( Active & !Anchored ){
        
        local Delta = END:up() * -SPEED
        
        rangerFilter( array(END, entity()) )
        local Trace = rangerOffset(END:pos(), END:pos() + Delta)
        
        if( Trace:hit() ){
            Anchored = 1
            END:soundPlay("stick", 0.5, "physics/metal/weapon_impact_hard"+randint(1, 3)+".wav")
            rope(1,END,vec(),entity(),vec(),0,1,"cables/cable",0)
        }

        END:setPos( Trace:position() )

    }
}


if( ~Active & Active ){
    END:deparent()
}

if( ~Active & !Active ){
    # do this next frame because we might have setpos already this frame
    timer("parent", 0.001, 1, function(){     
        END:setPos( entity():pos() )
        END:setAng( entity():toWorld(START_ANGLE) )
        END:parentTo( entity() )
        END:constraintBreak()
        Anchored = 0
    })
}