Fill using setPixel

 

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Here"s a little "fill" behavior using get/set pixel. Its pretty slow for anything larger than 100 px square since each pixel is checked for color. On the other hand, drawing directly into a bitmap an arbitrary pixel at a time is fast.

--------- change selected color in bitmap to random color --------- Roy Pardi --------- rpardi@rcn.com --------- www.roypardi.com property spriteNum property pMem property pHeight property pWidth on beginSprite me   pMem = sprite(spriteNum).member   pWidth = pMem.width - 1   pHeight = pMem.height -1 end on mouseDown me   fillColor = random(16777216)   changeColor = getPixelColor(me)   cursor 4   repeat with V = 0 to pHeight     repeat with H = 0 to pWidth       testColor =  pMem.getPixel(H,V)       if testColor = changeColor then         pMem.setPixel(H, V, fillColor)       end if     end repeat   end repeat   updatestage   cursor -1 end on getPixelColor me   mTop = (the mouseLoc).locV   mLeft = (the mouseLoc).locH   top = sprite(spriteNum).rect.top   left = sprite(spriteNum).rect.left   sLeft = mLeft-left   sTop = mTop-top   return pMem.getPixel(sLeft,sTop) end