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By: a guest on Jun 1st, 2012  |  syntax: None  |  size: 0.60 KB  |  hits: 26  |  expires: Never
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  1.       # Scrolling map
  2.       vx = 0
  3.       vy = 0
  4.       Crafty.addEvent document, Crafty.stage.elem, 'mousedown', (e) ->
  5.       return if e.button > 1
  6.       base = { x: e.clientX, y: e.clientY }
  7.       scroll = (e) ->
  8.         dx = base.x - e.clientX
  9.         dy = base.y - e.clientY
  10.         base = { x: e.clientX, y: e.clientY }
  11.         Crafty.viewport.x = (vx -= dx)
  12.         Crafty.viewport.y = (vy -= dy)
  13.  
  14.       Crafty.addEvent document, Crafty.stage.elem, 'mousemove', scroll
  15.       Crafty.addEvent document, Crafty.stage.elem, 'mouseup', ->
  16.         Crafty.removeEvent document, Crafty.stage.elem, 'mousemove', scroll
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