Change images a sprite is alternating between according to its speed

Physics
#1

Hi,

I am developing an app in corona in which I want the images a sprite is alternating between to change according to the accelerometer. The sprite in question is a person running, so I want that person to turn left when the device is tilted left and to turn right when the device is tilted right. The images corresponding to the person facing right are the images 1 and 2 on the sprite sheet and facing left are images 3 and 4 on the sprite sheet. the code I already have for the sprite is the following:

    local sheetData = require “gordinho110”

    local spriteData = sheetData.getSpriteSheetData()

    local spriteSheet = sprite.newSpriteSheetFromData (“gordinho110.png”, spriteData)

    local spriteSet = sprite.newSpriteSet (spriteSheet, 1, 2)

    sprite.add( spriteSet, “gordinho110”, 1, 2, 300, 0 ) – play 8 frames every 1000 ms

    local aSprite = sprite.newSprite(spriteSet)

    aSprite.x=screenW/2

    aSprite.y=screenH*7.2/9

    aSprite:prepare(“gordinho110”)

    aSprite:play()

    physics.addBody(aSprite)

    aSprite.gravityScale=0

    aSprite.myName=“john”

the code for switching the direction in which he’s moving is

    local function urTiltFunc( event )

        print (event.yGravity)

            if event.yGravity>0.1 then

                aSprite:setLinearVelocity(-180,0)

                isStopping=1

                

    fattySprite:play()

    

                

            else

                if event.yGravity<-0.1 then

                aSprite:setLinearVelocity (180,0)

                isStopping=1

                else

                    currentFrame=3

                aSprite:setLinearVelocity(0,0)

                isStopping=0

            end

            end

        end

    Runtime:addEventListener( “accelerometer”, urTiltFunc )

How should I do that??

thanks!!!

#2

You could try using setSequence to change the sprite sequence you want to play.  You could also use xScale to flip the sprite in the x direction depending on whether he is going right or left.

I did a short video tutorial on something similar.  You can check it out here: http://www.youtube.com/watch?v=TGHdLo_CkPM

#3

You could try using setSequence to change the sprite sequence you want to play.  You could also use xScale to flip the sprite in the x direction depending on whether he is going right or left.

I did a short video tutorial on something similar.  You can check it out here: http://www.youtube.com/watch?v=TGHdLo_CkPM