/traderous

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Viewing changes to cursor.lua

  • Committer: Josh C
  • Date: 2013-05-07 22:24:32 UTC
  • Revision ID: josh@9ix.org-20130507222432-74d3ul1p8ffq40s5
only fire if cursor is in target area.  change cursor to reflect this.

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cursor.lua
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Cursor = Tile:extend {
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   image = 'data/cursor.png',
 
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   inTargetArea = function(self)
 
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                     -- TODO: memoize this per-tick
 
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                     local mouseAngle = math.atan2(
 
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                        love.mouse.getY() - the.app.height/2,
 
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                        love.mouse.getX() - the.app.width/2
 
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                     )
 
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                     local mouseVsShipAbs = math.abs(the.player.rotation - mouseAngle)
 
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                     local mouseVsShip = math.min(2*math.pi - mouseVsShipAbs,
 
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                                                  mouseVsShipAbs)
 
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                     return mouseVsShip < 0.75
 
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                  end,
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   onUpdate = function(self)
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                 if the.keys:justPressed('t') then
 
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                 if self:inTargetArea() then
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                    self.image = 'data/cursor-target.png'
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                 end
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                 if the.keys:justPressed('c') then
 
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                 else
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                    self.image = 'data/cursor.png'
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                 end
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              end,
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   onEndFrame = function(self)
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                   self.x = love.mouse.getX() + 8 + the.player.x - the.app.width / 2