January 2011
Beginner
552 pages
14h 37m
English
Content preview from ActionScript 3.0 Game Programming University, Second Edition
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7. Direction and Movement: Air Raid II, Space Rocks, and Balloon Pop
• Using Math to Rotate and Move Objects
In Chapter 5, “Game Animation: Shooting and Bouncing Games,” the games involved simple horizontal and vertical movement. Moving along the horizontal or vertical axis is very easy to program. But arcade games demand more.
In many games, you need to allow the player to turn and move. For instance, a driving game has both steering and forward movement. A space game also requires this, and might even need to allow the player to fire weapons in the direction that the player’s ship is pointing.
Using ...
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