event.y

Overview

The y position where the collision event occurred. Note that the reported collision position can be influenced by physics.setAverageCollisionPositions() and physics.setReportCollisionsInContentCoordinates().

Gotchas

• During the "ended" phase, this value will always be 0. This is a Box2D limitation.

• If either (or both) bodies involved in the collision are sensors, this value will always be 0. This is a Box2D limitation.

• When a collision involves a circle and the collision result is returned in local space (see physics.setReportCollisionsInContentCoordinates()), the local space position of the collision is always 0,0. This is a Box2D limitation.

Example

local function onCollision( event )

    if ( event.phase == "began" ) then
        print( "began: " .. event.object1 .. " & " .. event.object2 )
        print( "position: " .. event.x .. "," .. event.y )
    elseif ( event.phase == "ended" ) then
        print( "ended: " .. event.object1 .. " & " .. event.object2 )
        print( "position: " .. event.x .. "," .. event.y )
    end
end