Events, Frames, Stages.. oh my!

mysps

hey guys..

still learning.. ok i'm working from the e-book template, on page1.lua there is a toy moving.. and worked well until i added sound to the page from page4.lua.. i've read and read, classes and events however, i guess i don't get it... here is my code, i'm guessing there is a conflict with those two events? i can have more than one mousedown correct?

Page1 = gideros.class(Sprite)       function Page1:init( pageNo, parent) self.no = pageNo   self.background = Bitmap.new(TextureRegion.new(Texture.new("gfx/background.png", true)))   self.toy = Bitmap.new(TextureRegion.new(Texture.new("gfx/doll.png", true ))) self.toy:setX(400) self.toy:setY(300)   self.ball = Bitmap.new(TextureRegion.new(Texture.new("gfx/ball.png", true))) self.ball:setX(600) self.ball:setY(100) self.ball.scaleX = 1 self.ball.inc = -0.001   self.buttonup = Bitmap.new(TextureRegion.new(Texture.new("gfx/1-up.png", true))) self.buttonup:setX(20) self.buttonup:setY(645)   self.buttonup2 = Bitmap.new(TextureRegion.new(Texture.new("gfx/2-up.png", true))) self.buttonup2:setX(140) self.buttonup2:setY(645)     self:addChild(self.background) self:addChild(self.toy) self:addChild(self.buttonup) self:addChild(self.buttonup2) self:addChild(self.ball)   self.sound = Sound.new("music/Japanese/cat.mp3")     self.toy.isMoving = false   self:addEventListener(Event.ADDED_TO_STAGE, self.onAddedToStage, self) self:addEventListener(Event.REMOVED_FROM_STAGE, self.onRemovedFromStage, self)   end   function Page1:onAddedToStage() -- we need mouse functions to interact with the toy self:addEventListener(Event.MOUSE_DOWN, self.onMouseDown, self) self:addEventListener(Event.MOUSE_UP, self.onMouseUp, self) self:addEventListener(Event.MOUSE_MOVE, self.onMouseMove, self) self:addEventListener(Event.ENTER_FRAME, self.onEnterFrame, self)   end   function Page1:onRemovedFromStage()   self:removeEventListener(Event.ENTER_FRAME, self.onEnterFrame, self) end             function Page1:onMouseDown(event) -- touch event begins here. you need to get the initial x and y, we will use them later if (self.toy:hitTestPoint(event.x, event.y) == true) then self.toy.isMoving = true self.toy.x0 = event.x self.toy.y0 = event.y print("toy") end   end   function Page1:onMouseUp(event) -- touch event ends here. we must get out of the mode. if (self.toy.isMoving == true) then self.toy.isMoving = false end   end   function Page1:onMouseMove(event)   if (self.toy.isMoving == true) then -- calculate the difference local dx = event.x - self.toy.x0 local dy = event.y - self.toy.y0 --store the new x,y of touch coordinates self.toy.x0 = event.x self.toy.y0 = event.y --set the new coordinates self.toy:setX(dx + self.toy:getX()) self.toy:setY(dy + self.toy:getY()) end   end           function Page1:onMouseDown(event) -- touch event begins here. you need to get the initial x and y, we will use them later if (self.buttonup:hitTestPoint(event.x, event.y) == true) then self.sound:play()   end   end     function Page1:onMouseDown(event) -- touch event begins here. you need to get the initial x and y, we will use them later if (self.buttonup2:hitTestPoint(event.x, event.y) == true) then self.sound:play()   end   end       function Page1:onEnterFrame(event) self.ball.scaleX = self.ball.scaleX + self.ball.inc if (self.ball.scaleX < 0.85) and self.ball.inc < 0 then self.ball.inc = -self.ball.inc end if (self.ball.scaleX > 1) and self.ball.inc > 0 then self.ball.inc = -self.ball.inc end   self.ball:setScaleX(self.ball.scaleX) end

right? thanks for any tidbits!

evs

@mysps

No - only one mousedown etc will work, do all your logic there, try something like

function Page1:onMouseDown(event) -- touch event begins here. you need to get the initial x and y, we will use them later if (self.toy:hitTestPoint(event.x, event.y) == true) then self.toy.isMoving = true self.toy.x0 = event.x self.toy.y0 = event.y print("toy")   elseif (self.buttonup2:hitTestPoint(event.x, event.y) == true) then self.sound:play()   end   end

cheers

evs

mysps

gotcha!! thanks so much .. i'll get there sooner or later

marbolec

how to avoid sound overlapping when the button is touched twice / repeatedly?

elseif (self.buttonup2:hitTestPoint(event.x, event.y) == true) then
self.sound:play()

end

talis

You can create a boolean paremeter and check that one. In addition sound:play() is returning a channel for you to keep track of it.

soundplay=false   if(soundplay==false) then channel=sound:play(0,math.huge) soundplay=true else channel:stop() soundplay=false end

talis

I am not aware of a function like channel:isplaying() but you can easilly write one your self.

talis

@mysps did you able to solve your problem?

marbolec

@talis : I have tried your code, but still not work
Here's my code before:
where should I put your code?

-- create a mouse joint on mouse down function self:onMouseDown(event) if sprite:hitTestPoint(event.x, event.y) then local jointDef = b2.createMouseJointDef(ground, body1, event.x, event.y, 100000) mouseJoint = self.world:createJoint(jointDef) self.channel = self.sound:play() self.channel:setVolume(0.3) end end