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package graphyx.tests
import sims.dynamics._
import sims.dynamics.joints._
import sims.geometry._
import java.io._
object Spring extends Test{
val title = "Spring"
val fout = new java.io.FileOutputStream("out.csv")
val sout = new java.io.PrintStream(fout)
val world = new World {
override def postStep = {
//for (b <- bodies; if (b.monitor)) sout.println(monitors(0)._2(b))
}
}
def init = {
val anchor = Circle(0.05, 10).asBody
anchor.fixed = true
val particle = (new Circle(0.1, 10) {pos = Vector2D(0, -1)}).asBody
val spring = new SpringJoint(anchor, particle, 500, 0.6)
//val spring = new PrismaticJoint(anchor, particle)
spring.damping = 1
particle.monitor = true
world.monitors += ("", _.pos.y.toString)
world += anchor
world += particle
world += spring
}
}
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