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我已經設置了2個機構,一個有重力的世界,一個帶有臺階的刻度方法,所有的物體都移動得很好,我可以對它們施加力,重力也在起作用。機體不會碰撞
但沒有碰撞。 當body1撞到地面時,他只是跳出屏幕,沒有打到像真正的球一樣跳。當body1碰到body2時,只是繼續運動,因爲什麼也沒有發生。
身體有形狀,世界有邊緣但沒有碰撞。 我在這裏錯過了什麼?
這裏有一些功能,我從INIT撥打:
- (void)addBoxBodyForSprite:(CCSprite *)sprite {
b2BodyDef spriteBodyDef;
spriteBodyDef.type = b2_dynamicBody;
spriteBodyDef.position.Set(sprite.position.x/PTM_RATIO,sprite.position.y/PTM_RATIO);
spriteBodyDef.userData = sprite;
spriteBody = world->CreateBody(&spriteBodyDef);
b2PolygonShape spriteShape;
spriteShape.SetAsBox(sprite.contentSize.width/PTM_RATIO/2,sprite.contentSize.height/PTM_RATIO/2);
b2FixtureDef spriteShapeDef;
spriteShapeDef.shape = &spriteShape;
spriteShapeDef.density = 10.0;
spriteShapeDef.isSensor = true;
spriteBody->CreateFixture(&spriteShapeDef);
}
-(void)worldEdge
{
CGSize winSize = [CCDirector sharedDirector].winSize;
b2BodyDef groundBodyDef;
groundBodyDef.position.Set(0,0);
b2Body *groundBody = world->CreateBody(&groundBodyDef);
b2PolygonShape groundBox;
b2FixtureDef boxShapeDef;
boxShapeDef.shape = &groundBox;
groundBox.SetAsEdge(b2Vec2(0,0), b2Vec2(winSize.width/PTM_RATIO, 0));
groundBody->CreateFixture(&boxShapeDef);
groundBox.SetAsEdge(b2Vec2(0,0), b2Vec2(0, winSize.height/PTM_RATIO));
groundBody->CreateFixture(&boxShapeDef);
groundBox.SetAsEdge(b2Vec2(0, winSize.height/PTM_RATIO), b2Vec2(winSize.width/PTM_RATIO, winSize.height/PTM_RATIO));
groundBody->CreateFixture(&boxShapeDef);
groundBox.SetAsEdge(b2Vec2(winSize.width/PTM_RATIO, winSize.height/PTM_RATIO), b2Vec2(winSize.width/PTM_RATIO, 0));
groundBody->CreateFixture(&boxShapeDef);
}
-(void)tick:(ccTime) dt
{
world->Step(dt,10,10);
for(b2Body *b=world->GetBodyList(); b; b=b->GetNext())
{
if(b->GetUserData() !=NULL)
{
CCSprite *sprite=(CCSprite *) b->GetUserData();//every b of the world will be update his position
sprite.position=ccp(b->GetPosition().x * PTM_RATIO, b->GetPosition().y * PTM_RATIO ) ;
sprite.rotation=-1*CC_RADIANS_TO_DEGREES(b->GetAngle());
}
}
一切都還好吧移動,但沒有碰撞過。
如果其中一個形狀是傳感器,則不會有碰撞反應。 – iforce2d
哇!非常感謝 ! – Curnelious
是的,但您的聯繫人偵聽器仍然可以檢測聯繫人。 –