angular rotation formula

  • Hello,

    I would like to keep the location of one sprite at an angular rotation relative to another sprite at all time -- based on the angle parameter of the sprite (the direction the first sprite is facing).

    So, for example, consider an vehicle traveling right (angle=0), there would be a vehicle 45 degrees to its right and behind it at constant distance d (say 75).

    Now, if vehicle1 turns clockwise (its angle becomes say 45), i want the following vehicle on the right, to fall back, to keep to 45 angle and distance d.

    This means that the Angle parameter of Vehicle 1 must be translated to an angular rotation of the X,Y coordinates of the following Vehicle 2.

    Is there a set of forumals that work in degrees (expected by cos and sin in C3) that could be used?

    thanks,

    Dan

  • there would be a vehicle 45 degrees to its right and behind it

    45° to it's right would put it in front of it?

    But I think I know what you mean. The formula would possibly be:

    Set position VehicleB to:

    X=VehicleA.X+cos(VehicleA.angle+45)*75

    Y=VehicleA.X+sin(CehicleA.angle+45)*75

    Is this what you are after?

    1drv.ms/u/s!AkmrWgxeuxlKhId1rlIF8_QqOkRHDw

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  • Yes, Exactly!

    Many thanks for coding it up as well --

    Dan

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