Question

I am a beginer of BOX2D, and I found I don t know how to CREATE a user-difined body from specific sprite. All box2d body shape are Polygon related shapes :(

下面,由于您的事先帮助,我仅靠大麻使用一种特定的形式。

PhysicsSprite *rightSprite =  [PhysicsSprite spriteWithFile:@"mySpecificShape.png"];
[self addChild:rightSprite];

b2BodyDef bodyDef;
bodyDef.type = b2_staticBody;
bodyDef.position = b2Vec2(400/PTM_RATIO, 512/PTM_RATIO);

b2Body * bodyA = world->CreateBody(&bodyDef);
bodyA->SetUserData(rightSprite);
[rightSprite setPhysicsBody:bodyA];

Answer 1

这样做并不简单。你们必须从简单的形状——多角、圈子和边缘——来建设自己的体。

Answer 2

You can do this be an external tool , There are few tools that you can read about:

Vertex Helper 和物理学编辑。

I m recommending on Physics Editor in this tool you load you image , and its export the shape into a XML , than you can load it in the engine that you are using and it will collide in the proper why

你们可以读到更多,可以下载:

http://www.codeandweb.com/physicseditor/feature

友情链接