Simple A.I
BlitzPlus Forums/BlitzPlus Beginners Area/Simple A.I
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| How would I make simple A.I such as making a enemy fight back, chase after you, etc. |
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| This is not ment to be glib ok? Do a search on the Internet for "Game AI" If you are talking about AI the level of say, the ghosts in packman, then the community can help you. Other than that Im afaid you are on your own Generaly you check to see how far the player is away, then you generaly make the enemy choose whether to attack or flee. TAke a look at this http://www.blitzbasic.com/codearcs/codearcs.php?code=1832#comments its in B3d and its only AI to path find |
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| I didn't search that or anything else, I just want to make an enemy be able to attack, without actually being attacked. D'you know what I mean? For example, in a side-scroller if you ended up in the same area as an enemy have it attack. However, I think I'll be able to work with that for what I'm programming, thanks. |
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| copied from the Game Programming for Teens 2nd edition ;demo12-03.bb - Demonstrates chasing algorithms Graphics 800,600 ;Set up backbuffer and automidhandle SetBuffer BackBuffer() AutoMidHandle True ;IMAGES ;player and enemies ships playership = LoadImage ("spaceship.bmp") enemyship = LoadImage ("enemyship.bmp") ;Load background backgroundimage = LoadImage ("stars.bmp") ;CONSTANTS ;The following constants are used for testing key presses Const ESCKEY = 1, UPKEY = 200, LEFTKEY = 203, RIGHTKEY = 205, DOWNKEY = 208 ;the following constants define how fast the player and the enemy move Const PLAYERSPEED = 10 Const ENEMYSPEED = 5 ;position player on bottom center of screen playerx = 400 playery = 400 ;positionenemy on upper center of screen enemyx = 400 enemyy = 200 ;set up scrolling variable scrolly = 0 ;MAIN LOOP While Not KeyDown(ESCKEY) ;tile the background image TileBlock backgroundimage, 0, scrolly ;move the background up a little scrolly = scrolly + 1 ;If scrolly gets too big, reset it If scrolly > ImageHeight(backgroundimage) scrolly = 0 EndIf ;Test the keypresses of the player ;If the player hits up, we move him up If KeyDown(UPKEY) playery = playery - PLAYERSPEED EndIf ;If the player hits left, we move him left If KeyDown(LEFTKEY) playerx = playerx - PLAYERSPEED EndIf ;If player hits right, we move him right If KeyDown(RIGHTKEY) playerx = playerx + PLAYERSPEED EndIf ;If player hits down, we move him down If KeyDown(DOWNKEY) playery = playery + PLAYERSPEED EndIf ;Now, we move the enemy depending on where the player is ;If the player is above the enemy, move the enemy up If playery > enemyy enemyy = enemyy + ENEMYSPEED EndIf ;If the player is to the left of the enemy, move the enemy left If playerx < enemyx enemyx = enemyx - ENEMYSPEED EndIf ;If the player is to the right of the enemy, move the enemy right If playerx > enemyx enemyx = enemyx + ENEMYSPEED EndIf ;if the player is below the enemy, move the enemy down If playery < enemyy enemyy = enemyy - ENEMYSPEED EndIf ;draw the player and enemy on the screen DrawImage playership, playerx, playery DrawImage enemyship, enemyx, enemyy ;delay for a bit Delay 25 ;Flip the front and back buffer Flip Wend ;END OF MAIN LOOP |
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| I'm such an idiot I got that book too! That answers my second question but I still wanna know how to make the enemy fight back. I'm making a side-scrolling fighting game and I'm not really sure how to make the enemy's fight back. |
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| could you define some sort of square or area around your player and when the enemy is within that zone run your attack sequence? type attack zone field LeftUpperCorner , RightUpperCorner, .... or maybe you could make an entirely transparent bitmap that sorrounds your player and use the imagesoverlap function and when your attackzoneimage collides with your enemyimage go into your attack sequence just some thoughts |
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| Thanks, I think that'll be just fine for what I had in mind. Also do you know why Blitz Plus saves as blitz basic? I just got Blitz Plus for Chirstmas and (obviously) the cd hasen't arrived yet but I got the online $60 full version (not the demo). Is this because I haven't got the cd mumbo jumbo in my pc? |
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| do you know why Blitz Plus saves as blitz basic? Both BlitzPlus and Blitz3D save with the file extension .bb |
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| I know that, but when I access the file the code turns up in blitz basic. I don't even own blitz basic, I just got rid of the demo that I was using before I got the blitz plus file saved. Even after I did that the code still came up with Blitz Basic. |
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| It might be that BlitzBasic is still installed. To change the file associations, in the Windows Explorer, go to Tools->Folder Options and choose the "file types" tab. Or shift+right-click a .bb file, choose "open with", then choose "select program", select b+ and check the box that says "allways open this type of file with this program". support.microsoft.com/kb/307859 |
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| Download this (Its a better IDE for BPlus) http://proteanide.whispertablet.co.uk/final/ProteanFinal.exe could you define some sort of square or area around your player and when the enemy is within that zone run your attack sequence? lol. Thats just another way of saying see how far the player is away, then you generaly make the enemy choose whether to attack The general rule for side scrollers, is "If you have to draw it on the screen, its attacking the player. Or it never attacks the player" |
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| I solved the Blitz Basic problem. Thanks, well that just about solves everything I wanted to know. By the way b32, send me more of the code for your 'skittish mouse controller question' and I'll take a look at it for you sometime next week. If i'm lucky I might even solve your problem. :) Siopses out |
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| Thanks Siopses, but that is Bryan970. My problems involve a deadline and a lack of inspiration. Working with deadlines doesn't work around the holidays I guess. He, thanks for the offer and happy newyear! |
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| Yeah you to, sorry for the misconception. Happy Holidays |
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| I think I got my mouse cursor problem worked out, thanks though |
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