Difference between revisions of "World:setCallbacks"
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* [[Tutorial:PhysicsCollisionCallbacks]] | * [[Tutorial:PhysicsCollisionCallbacks]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
− | {{#set:Description=Set functions to be called when shapes collide. | + | {{#set:Description=Set functions to be called when shapes collide.}} |
− | }} | + | {{#set:Since=000}} |
== Other Languages == | == Other Languages == | ||
{{i18n|World:setCallbacks}} | {{i18n|World:setCallbacks}} |
Revision as of 17:52, 25 March 2011
Set functions to be called when shapes collide.
Four Lua functions can be given as arguments. The value nil can be given for events that are uninteresting.
When called, each function will be passed three arguments. The first two arguments (one for each shape) will pass data that has been set with Shape:setData (or nil). The third argument passes the Contact between the two shapes.
Note: Using Shape:destroy when there is an active remove callback can lead to a crash. It is possible to work around this issue by only destroying object that are not in active contact with anything.
Function
Synopsis
World:setCallbacks( add, persist, remove, result )
Arguments
function add
- Called when two shapes first collide.
function persist
- Called each frame, if collision lasts more than 1 frame.
function remove
- Called when two shapes finish colliding.
function result
- No idea. Never seems to be called...
Returns
Nothing.
See Also
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