Ultimate Game Design : Building game worlds

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JavaScript Sample function moveMonster() { if(monster.canSeePlayer()) { monster.attack(); } else if(monster.canSeeWeapon()) { monster.pickupWeapon(); } else { monster.patrol(); } } Figure 6-1 shows what this script looks like inside an editor. Visual Basic Sample FIGURE 6-1 Sub moveMonster() If monster.canSeePlayer() Then monster.attack() ElseIf monster.canSeeWeapon() Then monster.pickupWeapon() Else monster.patrol() End If End Sub JavaScript sample view in editor C H A P T E R 6 139 Scripting Action Events
Building Game Worlds 140 U L T I M A T E G A M E D E S I G N Python Sample Perl Sample def moveMonster(): if monster.canSeePlayer(): monster.attack() elif monster.canSeeWeapon(): monster.pickupWeapon() else: monster.patrol() sub moveMonster { if( monster->canSeePlayer() ) { monster->attack(); } elsif ( monster->canSeeWeapon() ) { monster->pickupWeapon(); } else { monster->patrol(); } } APPLIED SCRIPTING EXAMPLES One of the best ways to demonstrate the power of scripting is to cover several common cases in which scripts are used in games to control behavior. Scripts can be used to control many kinds of custom events, so this is not by any means an exhaustive sampling of every possible script-based control. Script-based controls are customand user-defined. This is where collaboration with a tools or engine technology programmer or team is so very important. Both sides (programmer and scripter) need to agree on which behavior aspects make for the most powerful kinds of gameplay edits. The samples that follow should give you a solid idea of how you might use scripts to control different types of game behaviors. NPC Conversation Templates NPCs populate many game worlds and are used in a variety of ways. You might want to control how an NPC handles conversation with a player’s character. Let’s assume that actor_21 is a cave guard (a beast protecting the entrance to a cave). We want this cave guard actor to simply pass along three clues or pieces of information to the player about what’s inside the cave. A script might look like this:
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A BOUT THE AUTHOR Tom Meigs is a ga
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Brandon A. Nordin Scott Rogers Wend
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2 THE game design process begins by
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24 AFTER you’ve completed your pr
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54 FOR a game to be competitive the
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86 YOU now understand the developme
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204 Building Game Worlds 204 U L T
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216 ANOTHER new content horizon for
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238 THERE is a wide and growing ran
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266 AT some point in your skills gr
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274 Building Game Worlds U L T I M
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Building Game Worlds 278 FIGURE 11-
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286 THIS appendix includes useful r
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296 MANY types of software tools we
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304 TO assist you to further define
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310 I’VE gathered together a few
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322 AS a point of reference and as
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Ultimate Game Design : Building game worlds

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