B2.WorldManifold

Supported platforms:
Available since: Gideros 2012.09.6

Description

Contains information about contact relative to the world.

Examples

Checking collisions from bottom using b2.Contact <syntaxhighlight lang="lua"> local isTouchingGround = false world:addEventListener(Event.BEGIN_CONTACT, function(e) local manifold = e.contact:getWorldManifold() if manifold.normal.y > 0.9 then --collision came from bottom isTouchingGround = true end end)

world:addEventListener(Event.END_CONTACT, function(e) local manifold = e.contact:getWorldManifold() if manifold.normal.y < 0.1 then --collision ended from bottom isTouchingGround = false end end) </source>

Example content of b2.WorldManifold <syntaxhighlight lang="lua"> [normal] => Table {

       {
         [y] => -1
         [x] => 0
       }

[points] => Table {

       {
         [1] => Table {
            {
              [y] => 319.92502212524
              [x] => 99.999997615814
            }
       }

</source>

Methods

Events Constants normal points

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• LiquidFun