Driving Land VehicleGame ProgrammingFall 2013

ContentKinematic maneuverDynamic maneuver

RemarkNo dynamicsPosition of vehicle implicitly defined in modelview matrix Difficult to compute bounding boxes

Dynamic ManeuverAssume the vehicle is a particleThe power and angle of thrust can be controlledDrag is always opposite to the velocity (no drag is motionless)Integrate equations of motion by Euler’s method

thrust = Power Rot ()

v

x

drag = -k v

force = thrust + drag

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)()()()()()(

Using Virtual KeyboardUP/Down: increase/decrease power by a ratioHome: start engine with power = 1.0Space: stop engine with power = 0.0Left/Right: turning (next page)Force_gas: the thrust force exerted by the power

Engine Force

Power: controlled by up, down, home, spaceTheta_thrust: controlled by tank orientation (theta), left and right

Tank Rendering

pos

vel

Force_gas

x

z