I get DrawLine to work, how to Un-DrawLine?

[cyiwin]

I'm making a space ship battle game and using DrawLine for the laser fire. I'm using Timer_Ticks as the lasers duration. At the beginning of the tick, the previous lasers are erased. I'm doing this by covering the lasers with a new DrawLine using "transparent" as the color. This is causing issues and causing my star field to dissappear.

Instead of covering DrawLine, is there a way to just Un-Draw it?

Thanks for any advice.

 

[klaus]

No, UnDrawLine doesn't exist.
But you can add a transparent panel as a layer only for the laser and draw with color and transparent to erase.
Look at chapter 15.2.3 Simple draw functions in the Beginner's Guide.

Best regards.

 

[thedesolatesoul]

Undraw? what on earth in undraw?
On the next Timer_Tick you need to redraw the whole scene including the star fields. This will clear anything previous on the screen and draw everything back again, layer-by-layer.

 

[cyiwin]

Thanks guys, I'll look into those suggestions.