---@class cc.Physics3DWorld :cc.Ref local Physics3DWorld={ } cc.Physics3DWorld=Physics3DWorld ---* set gravity for the physics world ---@param gravity vec3_table ---@return self function Physics3DWorld:setGravity (gravity) end ---* Simulate one frame. ---@param dt float ---@return self function Physics3DWorld:stepSimulate (dt) end ---* ---@return boolean function Physics3DWorld:needCollisionChecking () end ---* ---@return self function Physics3DWorld:collisionChecking () end ---* ---@return self function Physics3DWorld:setGhostPairCallback () end ---* Remove all Physics3DObjects. ---@return self function Physics3DWorld:removeAllPhysics3DObjects () end ---* Check debug drawing is enabled. ---@return boolean function Physics3DWorld:isDebugDrawEnabled () end ---* Remove all Physics3DConstraint. ---@return self function Physics3DWorld:removeAllPhysics3DConstraints () end ---* get current gravity ---@return vec3_table function Physics3DWorld:getGravity () end ---* Remove a Physics3DConstraint. ---@param constraint cc.Physics3DConstraint ---@return self function Physics3DWorld:removePhysics3DConstraint (constraint) end ---* Add a Physics3DObject. ---@param physicsObj cc.Physics3DObject ---@return self function Physics3DWorld:addPhysics3DObject (physicsObj) end ---* Enable or disable debug drawing. ---@param enableDebugDraw boolean ---@return self function Physics3DWorld:setDebugDrawEnable (enableDebugDraw) end ---* Remove a Physics3DObject. ---@param physicsObj cc.Physics3DObject ---@return self function Physics3DWorld:removePhysics3DObject (physicsObj) end ---* Add a Physics3DConstraint. ---@param constraint cc.Physics3DConstraint ---@param disableCollisionsBetweenLinkedObjs boolean ---@return self function Physics3DWorld:addPhysics3DConstraint (constraint,disableCollisionsBetweenLinkedObjs) end ---* Internal method, the updater of debug drawing, need called each frame. ---@param renderer cc.Renderer ---@return self function Physics3DWorld:debugDraw (renderer) end ---* ---@return self function Physics3DWorld:Physics3DWorld () end