Sequence handler by speed

Getting Started Newbie Questions
#1

there’s a way to use a sprite listener that listen to the speed(physics) and swap sequences automatically?

for example: when speed is bigger than 5 - run…

Iv’e tried - if(speed > 5) then …:setSequence(“run”); …:play(); end but is doesent work…

any thoughts?

#2

You would be better off using a timer or enterFrame to measure the velocity of the object and then change the animation based on that measurement.

The sprite listener is for sprite events only.

local obj = display.newSprite( ... your args ... ) physics.addBody( obj ) function obj.enterFrame( self ) local vx, vy = self:getLinearVelocity() local v = math.sqrt( vx \* vx + vy \* vy ) if( v \< 5 and self.sequence ~= "walk" ) then self:setSequence("walk") elseif( v \< 10 and self.sequence ~= "run" ) then self:setSequence("run") else -- do a default thing here end end Runtime:addEventListener( "enterFrame", obj )
#3

Updated example above.  Not to use ‘enterFrame’ and check current sequence as well as velocity.

May not be exactly what you want, but should get you started.

#4

You would be better off using a timer or enterFrame to measure the velocity of the object and then change the animation based on that measurement.

The sprite listener is for sprite events only.

local obj = display.newSprite( ... your args ... ) physics.addBody( obj ) function obj.enterFrame( self ) local vx, vy = self:getLinearVelocity() local v = math.sqrt( vx \* vx + vy \* vy ) if( v \< 5 and self.sequence ~= "walk" ) then self:setSequence("walk") elseif( v \< 10 and self.sequence ~= "run" ) then self:setSequence("run") else -- do a default thing here end end Runtime:addEventListener( "enterFrame", obj )
#5

Updated example above.  Not to use ‘enterFrame’ and check current sequence as well as velocity.

May not be exactly what you want, but should get you started.