problem with shape position

hgvyas123

guys see the below code what i am doing wrong or why it is not going to 0,0 position

function drawRect(left,top,width,height) local shape = Shape.new() shape:setFillStyle(Shape.SOLID, 0xffffff, 0.5) shape:beginPath() shape:moveTo(left,top) shape:lineTo(left + width, top) shape:lineTo(left + width, top+height) shape:lineTo(left, top+height)   shape:closePath() shape:endPath() return shape end     local myRect = drawRect(100,0,50,80) myRect:setColorTransform(0,0,0,1) stage:addChild(myRect) myRect:setPosition(0,0) -- this is a issue need to move it to 0,0 point

same for circle shape also

function drawArc(xc,yc,xradius,yradius,startAngle,endAngle,isFill) if yradius == nil then yradius = xradius end if startAngle == nil then startAngle = 0 end if endAngle == nil then endAngle = 360 end if isFill == nil then isFill = true end local shape = Shape.new() if isFill then shape:setFillStyle(Shape.SOLID, 0xffffff, 0.5) else shape:setLineStyle(3, 0x000000) end shape:beginPath() for i=startAngle,endAngle do if i==1 then shape:moveTo(xc + math.sin(math.rad(i)) * xradius,yc + math.cos(math.rad(i)) * yradius) else shape:lineTo(xc + math.sin(math.rad(i)) * xradius,yc + math.cos(math.rad(i)) * yradius) end end if isFill then shape:closePath() end shape:endPath() return shape end     local myCircle = drawArc(150,55,50) myCircle:setPosition(0,0) -- same issue cant move it myCircle:setColorTransform(0,1,0,1) stage:addChild(myCircle)

thnx

hgvyas123

also what is a tag for syntax highlighting

thnx

ar2rsawseen

<pre lang='lua'>
</pre>

hgvyas123

ok updated with proper tag

atilim

There's nothing wrong with your code. The origin of all sprites are at (0, 0) by default.

Most probably you want to create your rectangle as:

local myRect = drawRect(0,0,50,80) -- top left is at (0,0) and dimensions are (50,80)

and position it by using:

myRect:setPosition(100, 0)

hgvyas123

ok got that

hgvyas123

ok worked wonderfully and here's the updated code to draw rectangle,arc,circle and roundedrect may be some one like it

function drawRect(left,top,width,height) local shape = Shape.new() shape:setFillStyle(Shape.SOLID, 0xffffff, 0.5) shape:beginPath() shape:moveTo(0,0) shape:lineTo(width, 0) shape:lineTo(width, height) shape:lineTo(0, height)   shape:closePath() shape:endPath() shape:setPosition(left,top) return shape end   local myRect = drawRect(10,0,50,80) myRect:setColorTransform(0,0,0,1) stage:addChild(myRect) myRect:setPosition(0,250)   function drawArc(xc,yc,xradius,yradius,startAngle,endAngle,isFill) if yradius == nil then yradius = xradius end if startAngle == nil then startAngle = 0 end if endAngle == nil then endAngle = 360 end if isFill == nil then isFill = true end local shape = Shape.new() if isFill then shape:setFillStyle(Shape.SOLID, 0xffffff, 0.5) else shape:setLineStyle(3, 0x000000) end shape:beginPath() for i=startAngle,endAngle do if i==1 then shape:moveTo(math.sin(math.rad(i)) * xradius, math.cos(math.rad(i)) * yradius) else shape:lineTo(math.sin(math.rad(i)) * xradius, math.cos(math.rad(i)) * yradius) end end if isFill then shape:closePath() end shape:endPath() shape:setPosition(xc,yc) return shape end   --usage local myArc = drawArc(250,110,50,100,40,220,false) myArc:setColorTransform(0,1,0,1) stage:addChild(myArc)   local myCircle = drawArc(150,55,50) myCircle:setPosition(50,50) myCircle:setColorTransform(0,1,0,1) stage:addChild(myCircle)   function drawRoundedRect(left,top,width,height,radius) --radius = 10 local yc = top + height*0.5 local xc = left + width*0.5 local shape = Shape.new() shape:setFillStyle(Shape.SOLID, 0xffffff, 1.5)   local xPointArr = {} local yPointArr = {} local function getPoints(xc,yc,radius,startAngle,endAngle) for i=startAngle,endAngle do xPointArr[#xPointArr + 1],yPointArr[#yPointArr + 1] = xc + math.sin(math.rad(i)) * radius,yc + math.cos(math.rad(i)) * radius end end   getPoints(width-radius*0.5,height-radius*0.5,radius,0,90) getPoints(width-radius*0.5,radius*0.5,radius,90,180) getPoints(radius*0.5,radius*0.5,radius,180,270) getPoints(radius*0.5,height-radius*0.5,radius,270,360)   for i=1,#xPointArr do if i == 1 then shape:moveTo(xPointArr[i],yPointArr[i]) else shape:lineTo(xPointArr[i],yPointArr[i]) end end   shape:closePath() shape:endPath()   shape:setScale(width/shape:getWidth(),height/shape:getHeight()) shape:setPosition(left,top)   return shape   end   local myRoundedRect = drawRoundedRect(150, 200, 80, 160,10) myRoundedRect:setColorTransform(1,1,0,1)   stage:addChild(myRoundedRect)