import processing.core._
import PConstants._
import PApplet._
object font_may21Runner { 
def main(args: Array[String]) { PApplet.main(Array("font_may21")) }
}
class font_may21 extends spde.core.SApplet { 
lazy val px = new DrawProxy { 

val squareDim = 500
val precision = 65536
val base = 16
def stringify(x: Int) = x.toHexString
def isNeg(x: Double): String = if(x < 0) "-" else ""
val hexFloatLen: Int = Math.round(Math.log(precision) / Math.log(base))
val leftmargin = 140

size(squareDim, squareDim)
val font = loadFont("AmericanTypewriter-24.vlw")
textFont(font)
def draw() {
  background(0)
  fill(30)
  ellipse(width/2,height/2,squareDim,squareDim)
  stroke(80)
  line(width /2, 0, width/2, height)
  line(0, height/2, width, height/2)
  fill(255)
  
  val toWrite = Math.round(Math.atan2(-mouseY + height/2, mouseX - width/2)*precision).toDouble/precision
  text("base 10", 20, 35)
  text(toWrite.toString, leftmargin, 35)
  
  val toWriteAsHex = Math.abs(toWrite)
  val lessTOne = stringify(Math.round((toWriteAsHex % 1) *precision))
  text("base 16", 20, 65)
  text( isNeg(toWrite) +
  Math.floor(toWriteAsHex).toInt.toHexString +
  "." +
  "0"*(hexFloatLen - lessTOne.length) + lessTOne,
  leftmargin, 65)
}


} }