y ) end end - destroy the mouse joint on mouse up function self : onMouseUp ( event ) if mouseJoint ~= nil then world : destroyJoint ( mouseJoint ) mouseJoint = nil end end Methodsī2.MouseJoint:getDampingRatio returns the damping ratioī2.MouseJoint:getFrequency returns the response frequency in Hertzī2.MouseJoint:getMaxForce returns the maximum force in Nī2.MouseJoint:getTarget returns the x and y coordinates of the target pointī2.MouseJoint:setDampingRatio sets the damping ratio (0 = no damping, 1 = critical damping)ī2.MouseJoint:setFrequency sets the response frequency in Hertzī2.MouseJoint:setMaxForce sets the maximum force in Nī2. y, 100000 ) mouseJoint = world : createJoint ( jointDef ) end - update the target of mouse joint on mouse move function self : onMouseMove ( event ) if mouseJoint ~= nil then mouseJoint : setTarget ( event. For example, the human elbow only allows a certain range of angles. joint limit A joint limit restricts the range of motion of a joint. All developers, with any skill level, are welcome to join the B4X community. Box2D supports several joint types: revolute, prismatic, distance, and more. B4R (free) - Arduino, ESP8266 and ESP32 development. In Gideros studio box2d, bodies (which are basicly the physical object, not the picture that goes with it) always show up as a translucent shape. where you downloaded Windows installer and type wine installername.exe . Note that we are passing to its constructor - a Texture object and that it receives the full path of the image as - we see under Files folder local einstein Bitmap.new ( Texture.new ( 'raeinstein.png' )) - create box2d physical object local world b2.World. ![]() There are some excellent video tutorials too, to help you get started. Pro Very easy to learn Gideros uses the Lua programming language which is very easy to learn (and very powerful). Pro Amazing 2D performance 2D performance is amazing. B4J (free) - Desktop and Server development. Gideros also comes with a built-in box2D physics engine and extended memory. Gideros supports iOS, Android, Windows, MacOS, WindowsRT, Windows Phone and HTML5 platforms. ![]() createMouseJointDef ( ground, body, event. Hi, Anyone know how can I start to learn box2d Or how can I apply some examples find in other box2d tutorials for Gideros. Welcome to B4X forum B4X is a set of simple and powerful cross platform RAD tools: B4A (free) - Android development. create empty box2d body for joint local ground = world : createBody () -joint with dummy body local mouseJoint = nil - create a mouse joint on mouse down function self : onMouseDown ( event ) local jointDef = b2.
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