Difference between revisions of "love.physics.newMouseJoint"
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Revision as of 20:43, 18 November 2010
Create a joint between a body and the mouse.
This joint actually connects the body to a fixed point in the world. To make it follow the mouse, the fixed point must be updated every timestep (example below).
The advantage of using a MouseJoint instead of just changing a body position directly is that collisions and reactions to other joints are handled by the physics engine.
Contents
Function
Synopsis
joint = love.physics.newMouseJoint( body, x, y )
Arguments
body body
- The body to attach to the mouse.
number x
- The x position of the connecting point.
number y
- The y position of the connecting point.
Returns
Joint joint
- The new mouse joint.
Examples
function love.load()
w=love.physics.newWorld(1000,1000)
b=love.physics.newBody(w,love.mouse.getPosition())
s=love.physics.newCircleShape(b,0,0,20)
b:setMassFromShapes()
j=love.physics.newMouseJoint(b,love.mouse.getPosition())
end
function love.draw()
love.graphics.circle("fill",b:getX(),b:getY(),s:getRadius(),20)
end
function love.update(dt)
j:setTarget(love.mouse.getPosition())
w:update(dt)
end
See Also
Other Languages
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한국어
More info