Line follow cursor

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• #1, by nikos papa Friday, 05. May 2017, 12:31 10 years ago

  Is it possible to create in lua a line that follows cursor. Or how can we follow cursor.
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• #2, by ke4 Friday, 05. May 2017, 13:22 10 years ago

  Yes, there's the new draw function that allows that.

  
  

  drawLine(x, y, x2, y2, color, alpha) 

  
  

  You can get the current cursor position by getCursorPos() function.

  So you could do something like this:

  graphics.addDrawFunc("draw()", 0) 
  
  function draw() 
  
  graphics.drawLine(0, 0, getCursorPos().x, getCursorPos().y, 000, 1.0) 
  
  end 

  
  

• #3, by stroncis Friday, 05. May 2017, 14:25 10 years ago

  And if you want that not just end of the line, but whole line to follow, simple line dragging:
  

  graphics.drawLine(getCursorPos().x-50, getCursorPos().y, getCursorPos().x+50, getCursorPos().y, 000, 1.0)  
  

  
  

  This makes horizontal line to follow cursor. By modifying x and y coordinates, you can rotate it or make at some distance from cursor.
  

• #4, by sebastian Friday, 05. May 2017, 15:01 10 years ago

  quick questions i have for this :

  - do i have to do this in a loop so the line keeps updated? 

  
  

  - how do i delete this line? 

• #5, by ke4 Friday, 05. May 2017, 15:19 10 years ago

  It's looping automatically. You can delete the function with removeDrawFunc(name).

  
  

  graphics.removeDrawFunc("draw()")