Difference between revisions of "Robot gallery"
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For reference information on how these robots work, see the [[Programming_robots|Programming Robots]] section. | For reference information on how these robots work, see the [[Programming_robots|Programming Robots]] section. | ||
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<source lang="lua"> | <source lang="lua"> | ||
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| − | You can use the above bot with the following level file | + | You can use the above bot with the following level file. Copy the robot code into a file called "orbitbot.bot" in your robots folder, then copy the following code into a file called "orbitbotdemo.level" in your levels file. The Robot line in the level file tells Bitfighter to load a robot called orbitbot.bot from the robots folder, and assign it to Team 1. |
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| + | When you play the level, you should see a functional orbitbot! | ||
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<source lang="levelcode"> | <source lang="levelcode"> | ||
GameType 10 10 | GameType 10 10 | ||
Latest revision as of 18:38, 12 February 2010
For reference information on how these robots work, see the Programming Robots section.
------------------------------------------------------------------------------- ------------------------------------------------------------------------------- -- -- OrbitBot, a simple robot that finds the nearest TestItem and orbits it -- Note that this relies on line-of-sight navigation, so only good for open levels -- -- !!! WILL ONLY WORK WITH RELEASE VERSION OF BITFIGHTER 011 AND ABOVE !!! -- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- -- This is called by the robot's idle routine each tick. -- This function must be present for the robot to work! function getMove() if(targetItem == nil) then targetItem = findClosest(bot:findGlobalItems(TestItemType)) end if(targetItem == nil) then return end local botLoc = bot:getLoc() local itemLoc = targetItem:getLoc() local dist = botLoc:distanceTo( itemLoc ) -- Here we use the getTime() function to make the motion look smooth. -- If we just advanced orbitAng by a fixed amount each frame, it would -- appear jerky, as each frame is a slightly different length. -- .0015 determined experimentally orbitAng = orbitAng + .0015 * bot:getTime() local dest if( dist <= orbitRadius * 1.1 ) then -- Close enough to enter orbit dest = itemLoc dest:setxy( itemLoc:x() + orbitRadius * math.cos (orbitAng), itemLoc:y() + orbitRadius * math.sin (orbitAng) ) if( not isInOrbit ) then orbitAng = botLoc:angleTo( dest ) - math.pi / 2 end isInOrbit = true else -- Travel directly toward object dest = itemLoc orbitAng = botLoc:angleTo( dest ) isInOrbit = false end bot:setThrustToPt( dest ) -- Travel towards calculated point bot:setAngle( botLoc:angleTo( itemLoc ) ) -- Aim ship that way too end ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- -- This function is called once and should return the robot's name function getName() return( "OrbitBot" ) end ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- -- Setup code here: this is run once when the robot is initialized, and -- any variables set here will persist throughout the robot's life. These -- variables can be accessed from various functions defined in this file. ------------------------------------------------------------------------------- -- Global variables must be declared here before they can be used elsewhere orbitAng = 0 orbitRadius = 300 isInOrbit = false targetItem = nil
You can use the above bot with the following level file. Copy the robot code into a file called "orbitbot.bot" in your robots folder, then copy the following code into a file called "orbitbotdemo.level" in your levels file. The Robot line in the level file tells Bitfighter to load a robot called orbitbot.bot from the robots folder, and assign it to Team 1.
When you play the level, you should see a functional orbitbot!
Invalid language.
You need to specify a language like this: <source lang="html4strict">...</source>
Supported languages for syntax highlighting:
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GameType 10 10 LevelName OrbitBot Home LevelDescription Robot demo level LevelCredits Robot 1 orbitbot.bot GridSize 255 MinPlayers 0 MaxPlayers 0 Team Blue 0 0 1 Team Red 1 0 0 BarrierMaker 50 1 -2 1 6 9 6 9 -2 1 -2 Spawn 0 3 2 Spawn 1 7 2 TestItem 5 2
