collision detection with mouse dragging problem

[frigerator5]

I am making a maze game. At first I was just using keyboard controls to move the character through a maze. This is fairly siomple to do because flash has more time to calculate a collision and prevent the character from moving through the wall. But I want to be able to drag the character through the maze with the mouse. This works ok when the dragging is slow. But once you move the mouse really fast, the character goes right through all the walls.

Does anyone have a good way to fix this?

I am using pixel perfect collision detection if that helps.

[5TonsOfFlax]

You will need to test whether the line between the character's last position and current position intersects with the maze. If the maze is static, this isn't too difficult. If it's moving, then it gets tougher.

[frigerator5]

ahhh... hadn't thought about that. Thank you.

[neznein9]

Consider giving your character a direction instead of 'moving' him, so your mouse gives him velocity toward the cursor but doesnt just teleport him to it's location.

[frigerator5]

Yeah, I tweened him to the mouse position with an ease and a time of .5. Then drew a line between him and the mouse and if anything is inbetween then he stops. Works great. Thanks for your help.