math – C# XNA Ball Moving – Education Career Blog

I have the ball in the very right bottom side. When I click somewhere, I want to be able to figure out the direction I clicked and once the user starts to drag, I will calculate the distance. Once the user lets go of the mouse, I want to give the ball some velocity and have it move towards the direction it was first clicked.

I don’t know the formulas to compute these things. Any help with explanation is greatly appreciated.

Thanks.

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You can check the first mouse down Mouse.GetState() (I think) and save it to a variable. Then check, if the mousedown-state is still given (do this in the Update() function), if not, this will be your destination point. Now you have a starting point and destination point, so you can move your ball in the update-method through the destination point. I hope, the explanation is clear 🙂

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