Difference between revisions of "B2.ChainShape"
From GiderosMobile
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__NOTOC__ | __NOTOC__ | ||
| − | '''Supported platforms:''' android | + | <languages /> |
| + | <!-- GIDEROSOBJ:b2.ChainShape --> | ||
| + | '''Supported platforms:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]][[File:Platform html5.png]][[File:Platform winrt.png]][[File:Platform win32.png]]<br/> | ||
'''Available since:''' Gideros 2012.2.2<br/> | '''Available since:''' Gideros 2012.2.2<br/> | ||
| + | '''Inherits from:''' [[Special:MyLanguage/b2.Shape|b2.Shape]]<br/> | ||
| + | |||
=== Description === | === Description === | ||
| − | + | A chain shape is a free form sequence of line segments. The chain has two-sided collision, so you can use inside and outside collision. Therefore, you may use any winding order. Connectivity information is used to create smooth collisions. | |
| − | A chain shape is a free form sequence of line segments. The chain has two-sided collision, so you can use inside | + | |
| − | and outside collision. Therefore, you may use any winding order. Connectivity information is used to create smooth collisions. | + | '''Note''': the chain will not collide properly if there are self-intersections. |
| − | + | ||
| − | |||
| − | |||
| − | |||
| − | |||
=== Examples === | === Examples === | ||
| − | '''Create world bounds using ChainShape''' | + | '''Create world bounds using ChainShape''' |
| − | < | + | <syntaxhighlight lang="lua"> |
| + | local body = world:createBody{type = b2.STATIC_BODY} | ||
body:setPosition(0, 0) | body:setPosition(0, 0) | ||
local chain = b2.ChainShape.new() | local chain = b2.ChainShape.new() | ||
| Line 22: | Line 23: | ||
0, application:getContentHeight() | 0, application:getContentHeight() | ||
) | ) | ||
| − | local fixture = body:createFixture{shape = chain, density = 1.0, | + | local fixture = body:createFixture{shape = chain, density = 1.0, friction = 1, restitution = 0.3} |
| − | friction = 1, restitution = 0.3}</ | + | </syntaxhighlight> |
| + | |||
{|- | {|- | ||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
=== Methods === | === Methods === | ||
| − | [[b2.ChainShape.new]] | + | [[Special:MyLanguage/b2.ChainShape.new|b2.ChainShape.new]] <br/><!-- GIDEROSMTD:b2.ChainShape.new() --> |
| − | [[b2.ChainShape:createChain]] '' | + | [[Special:MyLanguage/b2.ChainShape:createChain|b2.ChainShape:createChain]] ''creates a chain with isolated end vertices''<br/><!-- GIDEROSMTD:b2.ChainShape:createChain(vertices) creates a chain with isolated end vertices --> |
| − | [[b2.ChainShape:createLoop]] '' | + | [[Special:MyLanguage/b2.ChainShape:createLoop|b2.ChainShape:createLoop]] ''creates a loop''<br/><!-- GIDEROSMTD:b2.ChainShape:createLoop(vertices) creates a loop --> |
| + | |||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
=== Events === | === Events === | ||
=== Constants === | === Constants === | ||
|} | |} | ||
| + | |||
| + | ---- | ||
| + | *'''[[B2.Shape]]''' | ||
| + | *'''[[LiquidFun]]''' | ||
Latest revision as of 16:56, 12 July 2023
Supported platforms: 
Available since: Gideros 2012.2.2
Inherits from: b2.Shape
Description
A chain shape is a free form sequence of line segments. The chain has two-sided collision, so you can use inside and outside collision. Therefore, you may use any winding order. Connectivity information is used to create smooth collisions.
Note: the chain will not collide properly if there are self-intersections.
Examples
Create world bounds using ChainShape
local body = world:createBody{type = b2.STATIC_BODY}
body:setPosition(0, 0)
local chain = b2.ChainShape.new()
chain:createLoop(
0,0,
application:getContentWidth(), 0,
application:getContentWidth(), application:getContentHeight(),
0, application:getContentHeight()
)
local fixture = body:createFixture{shape = chain, density = 1.0, friction = 1, restitution = 0.3}
Methodsb2.ChainShape.new |
EventsConstants |
