Asteroid Class Reference

Just like the arcade game! Yo!

Inheritance diagram for Asteroid:

Member Functions
	Asteroid()
	Constructor.
	Asteroid(pos)
	Constructor. [details]
	getAngle()
	Get the items's angle in radians. [details]
	getCaptureZone()
	Returns capture zone holding the item. [details]
	getGeom()
	Returns an object's geometry. [details]
	getId()
	Gets an object's user assigned id. [details]
	getObjType()
	Gets an object's ObjType. [details]
	getOwner()
	Gets an object's owner as a PlayerInfo. [details]
	getPos()
	Gets an object's position. [details]
	getRad()
	Returns the radius of an item. [details]
	getShip()
	Returns the ship where the item is mounted. [details]
	getSizeCount()
	Returns size index of smallest asteroid. [details]
	getSizeIndex()
	Get this asteroid's current size index. [details]
	getTeamIndex()
	Gets the index of the object's team. [details]
	getVel()
	Get the items's velocity. [details]
	isInCaptureZone()
	Is item in a capture zone? [details]
	isSelected()
	Determine if an object is selected in the editor. [details]
	removeFromGame()
	Removes the object from the current game or editor session. [details]
	setAngle(angle)
	Sets the item's rotation angle. [details]
	setGeom(geometry)
	Sets an object's geometry. [details]
	setId(id)
	Sets an object's user assigned id. [details]
	setOwner(playerName)
	Sets the owner of the object. [details]
	setPos(pos)
	Set the object's position. [details]
	setSelected(selected)
	Set whether an object is selected in the editor. [details]
	setSize(size)
	Set the size of the Asteroid. [details]
	setTeam(teamIndex)
	Assigns the object to a team. [details]
	setVel(vel)
	Sets the item's velocity. [details]

Detailed Description

Just like the arcade game! Yo!

Constructor Documentation

Asteroid.new()[1/2]

returns Asteroid

Constructor.

Example:

asteroid = Asteroid.new()
...
levelgen:addItem(asteroid)

Asteroid.new(pos)[2/2]

Arg types: pos: point  |  returns Asteroid

Constructor.

Example:

asteroid = Asteroid.new(pos)
...
levelgen:addItem(asteroid)

Member Function Documentation

getAngle()

returns num

inherited from MoveObject

Get the items's angle in radians.

Returns

The object's rotation angle in radians

getCaptureZone()

returns Zone

inherited from Item

Returns capture zone holding the item.

Many games do not feature capture zones. For those games, this function will always return nil. Currently only FlagItems can be captured.

Returns

Zone where the item has been captured. Returns nil if the item is not in a capture zone.

getGeom()

returns Geom

inherited from BfObject

Returns an object's geometry.

Returns

A geometry as described on the Geom page

getId()

returns int

inherited from BfObject

Gets an object's user assigned id.

Users can assign an id to elements in the editor with the ! or # keys. Use this function to obtain this id. If the user has not assigned an object an id, getId() will return a negative id that will remain consistent throught the game.

Returns

The object's id.

getObjType()

returns ObjType

inherited from BfObject

Gets an object's ObjType.

obj = TestItem.new()
print(obj:getObjType() == ObjType.TestItem)   -- prints 'true'

See ObjType for a list of possible return values.

Returns

The object's ObjType.

getOwner()

returns PlayerInfo

inherited from BfObject

Gets an object's owner as a PlayerInfo.

Some objects (like projectiles) have an owning player associated. This method returns a PlayerInfo object if there is an owner. Otherwise, returns nil.

This method is intended to be used with bullets and other projectiles, not with game objects like zones.

Returns

A PlayerInfo representing the object's owner, or nil.

getPos()

returns point

inherited from BfObject

Gets an object's position.

For objects that are not points (such as a LoadoutZone), will return the object's centroid.

Returns

A Point representing the object's position.

getRad()

returns num

inherited from Item

Returns the radius of an item.

Returns

The radius of the item. For a Teleporter, this is the radius of the entrance. For a ForceFieldProjector, this is the radius of the base.

getShip()

returns Ship

inherited from Item

Returns the ship where the item is mounted.

Most objects cannot be mounted. For those, this function will always return nil.

Returns

Ship where the item is mounted. Returns nil if the item is not mounted.

getSizeCount()

returns int

Returns size index of smallest asteroid.

Remember, bigger indices mean smaller asteroids.

Returns

Index of the asteroid's smallest size.

getSizeIndex()

returns int

Get this asteroid's current size index.

Index 1 represents the asteroid's initial size. After it has been broken once, its size index will be 2, and so on. This method will always return an integer between 1 and the value returned by the getSizeCount() method (inclusive).

Returns

Index corresponding to the asteroid's current size.

getTeamIndex()

returns int

inherited from BfObject

Gets the index of the object's team.

Many BfObjects (such as TestItems) are never part of any particular team. For these objects, this method will return Team.Neutral.

Note

Remember that in Lua, indices start with 1!

Returns

Team index of the object.

getVel()

returns point

inherited from MoveObject

Get the items's velocity.

Returns

The velocity as an axis-aligned vector.

isInCaptureZone()

returns bool

inherited from Item

Is item in a capture zone?

Returns

true if item is held in a capture zone, false if it is not.

isSelected()

returns bool

inherited from BfObject

Determine if an object is selected in the editor.

This is useful for editor plugins only.

Returns

Returns true if the object is selected, false if not.

removeFromGame()

returns nothing

inherited from BfObject

Removes the object from the current game or editor session.

May not be implemented for all objects.

setAngle(angle)

Arg types: angle: num  |  returns nothing

inherited from MoveObject

Sets the item's rotation angle.

Set the rotation angle (in radians) of this MoveObject

Parameters

angle

A rotation angle in radians

setGeom(geometry)

Arg types: geometry: Geom  |  returns nothing

inherited from BfObject

Sets an object's geometry.

Parameters

geometry

The object's new geometry.

Note that not all objects support changing geometry if the object has already been added to a game.

setId(id)

Arg types: id: int  |  returns nothing

inherited from BfObject

Sets an object's user assigned id.

Users can assign an id to elements in the editor with the ! or # keys. Use this function to set this id from Lua. When called from an editor plugin, the value passed will be displayed in the editor when the player presses ! or #.

setOwner(playerName)

Arg types: playerName: string  |  returns nothing

inherited from BfObject

Sets the owner of the object.

Parameters

playerName

Name of player as a string.

Note

This method only works if the item in question has already been added to the game via addItem(object). The owner cannot be set beforehand. Also, 'playerName' must exactly match a the name of a player already in the game (case-sensitive).

This method is intended to be used with bullets and other projectiles, not with game objects like zones.

setPos(pos)

Arg types: pos: point  |  returns nothing

inherited from BfObject

Set the object's position.

To set the full geometry of a more complex object, see the setGeom() method.

Parameters

pos	The new position of the object.

setSelected(selected)

Arg types: selected: bool  |  returns nothing

inherited from BfObject

Set whether an object is selected in the editor.

This is useful for editor plugins only.

Parameters

selected

true to select the object, false to deselect it.

setSize(size)

Arg types: size: int  |  returns nothing

Set the size of the Asteroid.

Setting the size of an Asteroid will give you (size 1) levels you'll have to destroy. Each level reduction will produce two more asteroids

Parameters

size	The size the asteroid will be set to.

Note

Any size less than 1 will default to size 3. Please be responsible with your size choices.

setTeam(teamIndex)

Arg types: teamIndex: int  |  returns nothing

inherited from BfObject

Assigns the object to a team.

Parameters

teamIndex

Index of the team the object should be assigned to. (first team index is 1; there is no team 0)

Instead of a team index, you can use the special team enums Team.Neutral and Team.Hostile.

Limitations:

• Will have no effect on items that are inherently teamless (such as a NexusZone).
• Neither Ships nor Robots can be assigned to Team.Neutral or Team.Hostile.

setVel(vel)

Arg types: vel: point  |  returns nothing

inherited from MoveObject

Sets the item's velocity.

As with other functions that take a point as an input, you can also specify the x and y components as numeric arguments.

Parameters

vel	A point representing item's velocity.