I’m playing around with a game idea, and I am implementing map scrolling, but I wanted to know which way is preferred for scrolling a rather large map.
My current ideas (with their downfalls noted):
- Scrolling when mouse is around the edge of the screen (feels to clunky)
- Dragging the map (hard to find the balance of speed for scrolling, had some minor glitches)
- WASD movement (I would prefer not using keyboard input, but that isn’t set in stone)
Any thoughts or other ideas would be helpful 
Just for some idea of the scale of scrolling, the map is about 5000x5000 and the window is 1280x720.