Add gravity and friction

 Now add gravity and friction so that it's harder to hit the ball up into the goals. See how the game works if you give your player a cListenerCar or cListenerSpaceship, so that it's sensitive to the gravity (the other kinds of listeners zero out any forces acting on the player). The following lines have been tested to good effect in another game.

use something like setBounciness(0.9) on the puck, otherwise it bounces around too much. How does the robot player perform with gravity? Change its update method to make it play better.

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setMaxspeed (40.0); /* For Scooter and Car to be able to WHACK the balls. */ setListener (new cListenerSpaceship()); //Or use ... Car()); setListenerAcceleration (80.0); /* So Car or Spaceship can overcome gravity. */ addForce (new cForceGravity()); /* Uses default gravity strength 25. Gravity won't affect player using cListenerCursor, but will with cListenerCar. */ addForce (new cForceDrag (2.5)); /* Stronger than default friction strength 0.5. Have such big friction to make player less hyper. */ setBounciness (0.9); /* Not 1.0 means it loses a bit of energy with each bounce. */ setRadius (cCritter::PLAYERRADIUS/2.0); /* Lets make radius half as big so it can dig under guys better. But then we better make the density 8 times as big, so that its volume mass stays the same. */ setDensity (8.0 * density()); setMaxspeed (40.0); /* For Scooter and Car to be able to WHACK the balls. */ setListener (new cListenerSpaceship()); //Or use ... Car()); setListenerAcceleration (80.0); /* So Car or Spaceship can overcome gravity. */ addForce (new cForceGravity()); /* Uses default gravity strength 25. Gravity won't affect player using cListenerCursor, but will with cListenerCar. */ addForce (new cForceDrag (2.5)); /* Stronger than default friction strength 0.5. Have such big friction to make player less hyper. */ setBounciness (0.9); /* Not 1.0 means it loses a bit of energy with each bounce. */ setRadius (cCritter::PLAYERRADIUS/2.0); /* Lets make radius half as big so it can dig under guys better. But then we better make the density 8 times as big, so that its volume mass stays the same. */ setDensity (8.0 * density());