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Torque Bots and Damage

CIS 487/587Bruce R. MaximUM-Dearborn

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Slides based on theCode Sampler Tutorials

by Kevin Harris

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Adding a Bot - 1

• The code found in the bot.cs script file was taken from a more complicated A.I. script called, aiPlayer.cs, which is part of the starter.fps example.

• Copy the bot.cs script to your tutorial.base/server directory.

• Open the game.cs script file located in the tutorial.base/server directory

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Adding a Bot - 2

• Add the following line of script to the function onServerCreated( ) add it to the end of the list like usualexec("./bot.cs");

• Besides defining how our bot follows a given path, the bot.cs script also defines a special object called AIManager which is responsible for managing all bots in general

• For our AIManager to work, we'll need to add some code to start and stop it respectively.

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Adding a Bot - 3

• Add the highlighted lines to the onMissionLoaded() function:

new ScriptObject(AIManager) {};MissionCleanup.add(AIManager);AIManager.think();

• Next, we need add a of line of code to the onMissionEnded() function to delete the manager object when our game is done.     AIManager.delete();

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Adding a Bot - 4

• When done, close and save the "game.cs" script file.

• Note: We haven't laid-out our path yet with the Mission Editor so the function AIManager::spawn( ), which actually spawns the bot, will simply spawn a regular bot without specifying a path to follow.

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Path Definition - 1

• Run the test application by double-clicking torqueDemo.exe, which is located in the example directory.

• When the main menu comes up, click the "Load Mission!" button. A mission named, "F World", should load.

• After the mission starts, move forward a bit and turn around. You should see a motionless bot just standing there.

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Path Definition - 2

• Find a relatively flat area where it will be easier to create a path and hit F11 to open the Mission Editor and switch to "World Editor Creator" mode.

• Expand the tree in the lower right half of the screen by clicking the "Mission Objects" entry. Expand it out like so:"Mission Objects->Mission"

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Path Definition - 3

• In the Mission directory, you should see several entries to choose from.

• Click the entry labeled "Path" just once to create a new Path object. Name the Path object, "myPath".

• In the MissionGroup tree, which is in the upper right hand side of the editor, expand out the tree and find the node labeled "myPath".

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Path Definition - 4

• Make this node the current selection by holding down the "Alt" key while clicking it with the mouse.

• If done correctly, the selection color of the "myPath" entry should change from white to gray.

• Make sure the path markers get grouped under our new Path object.

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Path Definition - 5

• Return to the tree control in the lower right hand corner and click the “PathMarker” in the "Mission" directory.

• Name the new PathMarker, "myMarker0" and check to make sure it was correctly grouped under "myPath" in the "MissionGroup" tree control.

• Repeat the process to create two more PathMarkers called, "myMarker1, and "myMarker2".

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Path Definition - 6

• Make sure to place the markers far enough apart so you can see your bot run around.

• Save the mission file by selecting and exit completely out of the game.

• return to the bot.cs script file located in the tutorial.base/server directory and edit the function AIManager::spawn()

• Comment out the line of code that creates "Bot_1" and uncomment the code below it that creates "Bot_2“ and save bot.cs.

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Test Bot

• Run the test application again by double-clicking torqueDemo.exe.

• If everything was done correctly, you should see a new bot called "Bot_2" running around your new Path object's PathMarkers.

• If not, make sure that your PathMarkers are not too low on the terrain and that they're correctly grouped under the "myPath" object.

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Weapons Damage

• This tutorial demonstrates how to apply weapons damage to both players and bots when a weapon's projectile collides with them and how to calculate "radius damage", which allows an exploding projectile to damage a player without making direct contact.

• This tutorial not only requires the Tutorial Base application as its starting place, but also requires the addition of the Weapons and Bot Path-Finding tutorials.

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Damage - 1

• Copy the scripts radiusDamage.cs and shapeBase.cs to your tutorial.base/server directory.

• Open the game.cs script file located in the tutorial.base/server directory and add the following script lines to the function onServerCreated()exec("./radiusDamage.cs");exec("./shapeBase.cs");

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Damage - 2

• Copy the player_dieknees.dsq animation file to the /tutorial.base\data\shapes\player directory.

• Open the player.cs script file located in the \tutorial.base\data\shapes\player directory and following highlighted line of script to the datablock TSShapeConstructor

sequence12 = "./player_dieknees.dsq die";

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Damage - 3

• This is the last change to this player.cs save the file and close it.

• Open the player.cs script file located in the tutorial.base/server directory and add the following line of script to the datablock PlayerShape

    className = Armor;

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Damage - 4

• Add this function to the bottom of the player.cs script.function Player::playDeathAnimation( %this ){  %this.setActionThread( "die" );}

• Add this function next.function Armor::damage

(%this, %obj, %sourceObject, %position,       %damage, %damageType ){    …}

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Damage - 5

• Add this function next.function Armor::onDisabled( %this, %obj, %state ) {    …}

• This is the last change to this player.cs save the file and close it.

• Open the rocket_launcher.cs script file located in the tutorial.base/server directory

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Damage - 6

• Modify the datablock RocketProjectile datablock like so:

directDamage = 50;radiusDamage = 25;damageRadius = 1.5;

• Then modify the function RocketProjectile::onCollision function RocketProjectile::onCollision( %this, %obj, %col, %fade, %pos, %normal ){…   }

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Damage - 7

• That's it for rocket_launcher.cs save the file and close it.

• Run the test application by double-clicking torqueDemo.exe

• You should now be able to shoot and kill the path-finding bot as well as blow your self up by shooting at your player's feet.