Game Maker Demonstration

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Game Maker Demonstration

• Carlotta EatonProfessor of Information
  TechnologyNew River Community College
• IT Peer Conference - October 2006

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Demo

• Evil Clutches game
• Game Maker Interface
• Sprites
• Objects
• Events Actions
• Instances Rooms
• Background Graphics
• Sound Effects

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Evil Clutches Game

• You play a mother dragon who must rescue her
  hatchlings from an unpleasant band of demons that
  have kidnapped them.
• The band's boss sends a stream of demons to
  destroy the dragon as the hatchlings make their
  escape.
• The mother can fend off the boss's minions by
  shooting fireballs, but must be careful not to
  accidentally shoot the hatchlings!

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Game Maker Interface
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Sprites

• A sprite is a two-dimensional image or animation
  that is integrated into a larger scene.
• Sprites needed for game objects
• Dragon
• Boss
• Demons
• Fireball
• Baby Hatchlings

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Sprites for Evil Clutches Game
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Objects

• An object is an individual unit of run-time data
  storage that is used as the basic building block
  of Object Oriented Programming
• An object is the part of the game that controls
  how the elements move around and react to each
  other

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Events Actions

• Events actions specify the behavior of objects.
  
• Events are important things that happen such as
  when objects collide or when a player presses a
  key.
• Actions are things that happen in response to an
  event, such as changing the score, changing
  direction, or playing a sound.

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Create Object 1 - Boss
The boss object randomly moves up and down the
screen. When the boss hits the edge of the
screen it moves in the opposite direction.
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Create Object 2 - Dragon
Use the up and down keys to move the dragon
vertically on the screen.
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Rooms - Objects and Instances

• We have created objects
• Now we need to create instances of the objects to
  utilize them
• Create a room and place instances
• Create another room for each level in a game

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Rooms Instances
Create an instance of the dragon object Create
an instance of the boss object
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Test Evil Clutches Version 1
Game Maker GameEvil Clutches 1.exe

• Move the dragon using the up down keys.
• The boss changes direction when it hits a room
  boundary.

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Add Object 3 Fireball

• Dragon object creates an instance when player
  presses spacebar
• Fireball instance destroyed when it moves off
  screen

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Add Object 4 Demon

• Instances randomly created by the boss
• Demons fly from right to left
• Reverse direction when hit room boundary
• Restart game if hits the dragon

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Add Object 5 Baby Hatchling

• Rescue a baby and earn 500 points
• Shoot a baby and lose 300 points

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Test the Evil Clutches Version 2
Game Maker GameEvil Clutches 2.exe

• Move the dragon using the up down keys.
• Earn 500 points if you rescue a baby hatchling.
• Lose 300 points if you shoot a baby hatchling.
• Game ends if you hit a demon.

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Add Background Graphic
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Add Sound Effects
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Add Game Information Screen
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Add Credits
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Test the Evil Clutches Version 3
Game Maker GameEvil Clutches 3.exe

• Background cave image displays.
• Background music plays.
• Sound effect when you shoot a demon.
• Crying sound effect when you accidentally shoot
  a baby.
• Hit F1 to view the credits screen.

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Student Project Slider Game
Educational Slider Game by Lauren and Dusty.exe

• First original project by 2 person team
• Created 3rd week of class after a single Game
  Maker lesson.
• Create a slider game with an educational
  purpose.
• Could use any artwork since creating for
  learning (not to sell or distribute).

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Game Maker

• Easy to use
• Students visually understand
• Objects
• Events
• Actions
• Instantiate objects
• Destroy instances
• Design, code, test cycle

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For More Information

• Carlotta Eaton
• Professor of IT
• Director, Game Technology Programs
• www.nr.edu/eaton or
• www.nr.edu/itp195
• [phone] x4250
• www.gamemaker.nl

nreatoc_at_nr.edu