Difference between revisions of "B2.Contact"
From GiderosMobile
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__NOTOC__ | __NOTOC__ | ||
| + | <!-- GIDEROSOBJ:b2.Contact --> | ||
'''<translate>Supported platforms</translate>:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]]<br/> | '''<translate>Supported platforms</translate>:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]]<br/> | ||
'''<translate>Available since</translate>:''' Gideros 2012.09.6<br/> | '''<translate>Available since</translate>:''' Gideros 2012.09.6<br/> | ||
| Line 27: | Line 28: | ||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
=== <translate>Methods</translate> === | === <translate>Methods</translate> === | ||
| − | [[Special:MyLanguage/b2.Contact:getChildIndexA|b2.Contact:getChildIndexA]] <br/> | + | [[Special:MyLanguage/b2.Contact:getChildIndexA|b2.Contact:getChildIndexA]] <br/><!-- GIDEROSMTD:b2.Contact:getChildIndexA --> |
| − | [[Special:MyLanguage/b2.Contact:getChildIndexB|b2.Contact:getChildIndexB]] <br/> | + | [[Special:MyLanguage/b2.Contact:getChildIndexB|b2.Contact:getChildIndexB]] <br/><!-- GIDEROSMTD:b2.Contact:getChildIndexB --> |
| − | [[Special:MyLanguage/b2.Contact:getFixtureA|b2.Contact:getFixtureA]] <br/> | + | [[Special:MyLanguage/b2.Contact:getFixtureA|b2.Contact:getFixtureA]] <br/><!-- GIDEROSMTD:b2.Contact:getFixtureA --> |
| − | [[Special:MyLanguage/b2.Contact:getFixtureB|b2.Contact:getFixtureB]] <br/> | + | [[Special:MyLanguage/b2.Contact:getFixtureB|b2.Contact:getFixtureB]] <br/><!-- GIDEROSMTD:b2.Contact:getFixtureB --> |
| − | [[Special:MyLanguage/b2.Contact:getFriction|b2.Contact:getFriction]] <br/> | + | [[Special:MyLanguage/b2.Contact:getFriction|b2.Contact:getFriction]] <br/><!-- GIDEROSMTD:b2.Contact:getFriction --> |
| − | [[Special:MyLanguage/b2.Contact:getManifold|b2.Contact:getManifold]] <br/> | + | [[Special:MyLanguage/b2.Contact:getManifold|b2.Contact:getManifold]] <br/><!-- GIDEROSMTD:b2.Contact:getManifold --> |
| − | [[Special:MyLanguage/b2.Contact:getRestitution|b2.Contact:getRestitution]] <br/> | + | [[Special:MyLanguage/b2.Contact:getRestitution|b2.Contact:getRestitution]] <br/><!-- GIDEROSMTD:b2.Contact:getRestitution --> |
| − | [[Special:MyLanguage/b2.Contact:getWorldManifold|b2.Contact:getWorldManifold]] <br/> | + | [[Special:MyLanguage/b2.Contact:getWorldManifold|b2.Contact:getWorldManifold]] <br/><!-- GIDEROSMTD:b2.Contact:getWorldManifold --> |
| − | [[Special:MyLanguage/b2.Contact:isTouching|b2.Contact:isTouching]] <br/> | + | [[Special:MyLanguage/b2.Contact:isTouching|b2.Contact:isTouching]] <br/><!-- GIDEROSMTD:b2.Contact:isTouching --> |
| − | [[Special:MyLanguage/b2.Contact:resetFriction|b2.Contact:resetFriction]] <br/> | + | [[Special:MyLanguage/b2.Contact:resetFriction|b2.Contact:resetFriction]] <br/><!-- GIDEROSMTD:b2.Contact:resetFriction --> |
| − | [[Special:MyLanguage/b2.Contact:resetRestitution|b2.Contact:resetRestitution]] <br/> | + | [[Special:MyLanguage/b2.Contact:resetRestitution|b2.Contact:resetRestitution]] <br/><!-- GIDEROSMTD:b2.Contact:resetRestitution --> |
| − | [[Special:MyLanguage/b2.Contact:setEnabled|b2.Contact:setEnabled]] <br/> | + | [[Special:MyLanguage/b2.Contact:setEnabled|b2.Contact:setEnabled]] <br/><!-- GIDEROSMTD:b2.Contact:setEnabled --> |
| − | [[Special:MyLanguage/b2.Contact:setFriction|b2.Contact:setFriction]] <br/> | + | [[Special:MyLanguage/b2.Contact:setFriction|b2.Contact:setFriction]] <br/><!-- GIDEROSMTD:b2.Contact:setFriction --> |
| − | [[Special:MyLanguage/b2.Contact:setRestitution|b2.Contact:setRestitution]] <br/> | + | [[Special:MyLanguage/b2.Contact:setRestitution|b2.Contact:setRestitution]] <br/><!-- GIDEROSMTD:b2.Contact:setRestitution --> |
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
=== <translate>Events</translate> === | === <translate>Events</translate> === | ||
=== <translate>Constants</translate> === | === <translate>Constants</translate> === | ||
|} | |} | ||
Revision as of 15:56, 31 August 2018
Supported platforms: 
Available since: Gideros 2012.09.6
Description
The class manages contact between two shapes. A contact exists for each overlapping AABB in the broad-phase (except if filtered). Therefore a contact object may exist that has no contact points.
Examples
Checking collisions from bottom using b2.Contact
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)
