Anonymous user
Plasma effect: Difference between revisions
Scala contribution added.
(Scala contribution added.) |
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https://www.dropbox.com/s/gdioouv328m2d60/PlasmaEffect.jpg?dl=0
=={{header|Scala}}==
===Java Swing Interoperability===
<lang Scala>import java.awt._
import java.awt.event.ActionEvent
import java.awt.image.BufferedImage
import javax.swing._
import scala.math.{sin, sqrt}
object PlasmaEffect extends App {
SwingUtilities.invokeLater(() =>
new JFrame("Plasma Effect") {
class PlasmaEffect extends JPanel {
private val (w, h) = (640, 640)
private var hueShift = 0.0f
override def paintComponent(gg: Graphics): Unit = {
val g = gg.asInstanceOf[Graphics2D]
def drawPlasma(g: Graphics2D) = {
val img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB)
for (y <- 0 until h;
x <- 0 until w) {
def design =
(sin(x / 16f) + sin(y / 8f) + sin((x + y) / 16f) + sin(sqrt(x * x + y * y) / 8f) + 4).toFloat / 8
img.setRGB(x, y, Color.HSBtoRGB(hueShift + design % 1, 1, 1))
}
g.drawImage(img, 0, 0, null)
}
super.paintComponent(gg)
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON)
drawPlasma(g)
}
// animate about 24 fps and shift hue value with every frame
new Timer(42, (_: ActionEvent) => {
hueShift = (hueShift + 0.02f) % 1
repaint()
}).start()
setBackground(Color.white)
setPreferredSize(new Dimension(h, w))
}
add(new PlasmaEffect, BorderLayout.CENTER)
pack()
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE)
setLocationRelativeTo(null)
setResizable(false)
setVisible(true)
})
}</lang>
=={{header|Sidef}}==
{{trans|Perl 6}}
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