tell me about self

rancari

I think it's dumb question. But, it is really important for my on going project. OK, start from script. Basically, it's just modification from "Drag Me" example.

local function onMouseDown(self, event) if self:hitTestPoint(event.x, event.y) then self.isFocus = true   self.x0 = event.x self.y0 = event.y   event:stopPropagation() end end   local function onMouseMove(self, event) if self.isFocus then self:setColorTransform(1,0.7,0.2,1) local dx = event.x - self.x0 local dy = event.y - self.y0   self:setX(self:getX() + dx) self:setY(self:getY() + dy)   self.x0 = event.x self.y0 = event.y   event:stopPropagation() end end local function onMouseUp(self, event) if self.isFocus then self.isFocus = false event:stopPropagation() end   --this is my problem if event.x>80 and event.x <120 then self:setX(80) end end   local n = 5 local lett = {} for i=1,n do lett[i] = Shape.new() lett[i]:setFillStyle(Shape.SOLID,0x566765,0.5) lett[i]:setLineStyle(1, 0x0066FF, 2) lett[i]:beginPath() lett[i]:moveTo(0, 0) lett[i]:lineTo(0, 50) lett[i]:lineTo(50, 50) lett[i]:lineTo(50, 0) lett[i]:lineTo(0, 0) lett[i]:endPath() lett[i].isFocus = false stage:addChild(lett[i]) lett[i]:setPosition(i*60-40,26) lett[i]:addEventListener(Event.MOUSE_DOWN, onMouseDown, lett[i]) lett[i]:addEventListener(Event.MOUSE_MOVE, onMouseMove, lett[i]) lett[i]:addEventListener(Event.MOUSE_UP, onMouseUp, lett[i]) end

The problem here is onMouseUp function. When I try the last shape, it's fine. But, if I move #3 shape (lett[3]), two following shape: lett[4] and lett[5] move like lett[3]. I want to make that only lett[3] move. So, what does the "self" mean?

Chang

Are you shapes overlapping each other?

vitalitymobile

@rancari You should put
if event.x>80 and event.x <120 then self:setX(80) end
before
event:stopPropagation()<pre escaped='true' lang="lua">
local function onMouseDown(self, event)
if self:hitTestPoint(event.x, event.y) then
self.isFocus = true

self.x0 = event.x
self.y0 = event.y

event:stopPropagation()
end
end

local function onMouseMove(self, event)
if self.isFocus then
self:setColorTransform(1,0.7,0.2,1)
local dx = event.x - self.x0
local dy = event.y - self.y0

self:setX(self:getX() + dx)
self:setY(self:getY() + dy)

self.x0 = event.x
self.y0 = event.y

event:stopPropagation()
end
end
local function onMouseUp(self, event)
if self.isFocus then
self.isFocus = false
--this is my problem
print(event.x)
if event.x>80 and event.x <120 then self:setX(80) end
event:stopPropagation()
end

end

local n = 5
local lett = {}
for i=1,n do
lett[i] = Shape.new()
lett[i]:setFillStyle(Shape.SOLID,0x566765,0.5)
lett[i]:setLineStyle(1, 0x0066FF, 2)
lett[i]:beginPath()
lett[i]:moveTo(0, 0)
lett[i]:lineTo(0, 50)
lett[i]:lineTo(50, 50)
lett[i]:lineTo(50, 0)
lett[i]:lineTo(0, 0)
lett[i]:endPath()
lett[i].isFocus = false
stage:addChild(lett[i])
lett[i]:setPosition(i*60-40,26)
lett[i]:addEventListener(Event.MOUSE_DOWN, onMouseDown, lett[i])
lett[i]:addEventListener(Event.MOUSE_MOVE, onMouseMove, lett[i])
lett[i]:addEventListener(Event.MOUSE_UP, onMouseUp, lett[i])
end

rancari

@chang - yes, they're overlapping
@vitalitymobile - thanks for your suggestion.solved