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1、一个塔防游戏zpw759翻译http://blog.sina.com.cn/zpw759这是你的游戏最终效果Afewweeksago,ImadetheTDgame‘Interceptor’.Sincethen,IhavereceivedsomemessagesabouthowIhadmadeit.That’swhyIwrotethistutorialforthepeoplewhowanttomaketheirownTDgamewithGameMaker.ItcanbemadewithGMLiteandPro.NOTE:thisisanewt
2、utorial:theexamplesaremadelargelywithGMLandhavemorecommentadded,andnowI’veincludedanupgradesystem.Thewavesystemhasalsobeenupdated.Nowyouhaveonewaveatatime.WhenyoumakeaTDgame,youneedsomebasiccontent:ØTowerspage2-5ØEnemiespage6ØApath(ormore)fortheenemiespage7-8ØAbuildingsystempage9-13ØAw
3、avesystempage14-15ØAnupgradesystempage16-17-Also,pleasereadtheFinalWordsonpage17whenyou’redone.TowersThefirstthingyouneedwhenyouplaytowerdefensegamesisofcourse:towers.Theyautomaticallyattacktheenemiesinrange.I’lldescribetwokindsoftowers:lasertowersandbullet-firingtowers.Inthefirststeps
4、ofthetutorial,we’llassumethatthetowersalreadyexist,soyoudon’thavetobuildthemyet.That’seasierifyouwanttotestiftheywork.OKfirst,wemaketwospritesfortowers:oneforthelaserandanotherforthebullet-firingtower.IfyouhaveGMPro,youcanmakespritesthatcanrotatenicely,withtheorigininthecenter.Next,wem
5、aketwoobjects,oneforeachtower.Wegivethembothadepthof-2andwemakethelasertowertheparentofthebullet-firingtower.LasertowersThistowerwillfireacontinuouslaseratthenearesttarget.Thelaserwillbeasimpledrawnline.Therefore,weneedavariabletoindicatewhetherthetowerisfiringornot,whichwillbe:firing(
6、setto0).Wealsoaddavariable,target(settonoone),whichwillindicatetheenemythatisbeingattacked.Andfinally,we’lladdthesevariables:ØRange=200ØRate=3ØDamage=10ØPrice=20ØName=‘Lasertower’Thesevariablesindicatetherange,firingrate(shotspersecond),damage,thebuildingcostandtherealnameforthetower.Y
7、oucanchangethemifyoulike.Nowit’stimetomakethescriptwhichwillmakethetowerattackenemieswithinrange.__________________________________________________________//Checkifenemiesareinrangeandactivatefiringifneeded{iffiring>0firing+=1;iffiring=30/ratefiring=0;ifnotinstance_exists(target)targ
