Index

1. Tutorial 13

• during this tutorial we will
  • understand the PGE API
  • create a small snooker game using PGE
  • understand how PGE integrates with PyGame

2. Using PGE to create a game

• full documentation about PGE is available
• any PGE game or simulation must fix a board frame around our universe

• 

3. Framing the universe in PGE

• def placeBoarders (thickness, color):
      bottom = pge.box (0.0, 0.0, 1.0, thickness, color).fix ()
      left = pge.box (0.0, 0.0, thickness, 1.0, color).fix ()
      right = pge.box (1.0-thickness, 0.0, thickness, 1.0, color)\
             .fix ()
      top = pge.box (0.0, 1.0-thickness, 1.0, thickness, color)\
             .fix ()
      return [bottom, left, right, top]

• which can be invoked by:

• sides = placeBoarders (0.01, brown)

4. Run breakout

• examine the breakout game source code
  • take a copy of this code and run it from the command line using the Python interpreter
• read the code and mentally make a note about the various sections of code and what they are performing

5. Implement snooker in PGE

• now create a new simple PGE program which just creates the boarders (you will need a main which can be borrowed from the breakout example)
• now take a copy and introduce a single moving circle (cue ball) which is dropped from the point 0.5,0.5
  • gravity must be turned on!
• now turn gravity off and give this circle an impulse upwards (see the breakout code for a working example of an impulse)
  • check the PGE documentation for more details
• add some snooker ‘‘red's''
  • observe what happens when the cue ball hits the red balls
• now add a background green to the PGE world
• now add some pockets
• implement some callbacks for the pockets
  • to delete a ‘‘red''
  • reposition the cue ball
  • and calculate the ‘‘break'' value
• continue to work on this program as part of some directed learning throughout the week

6. Conclusion

• we have
  • understood more about the PGE API
  • created a small snooker game using PGE
  • understood how PGE integrates with PyGame
• you might want to read around the subject by reading this paper The Construction of a Predictive Collision 2D Game Engine

Index

This document was produced using groff-1.22.