Data commit

Task/Fractal-tree/Kotlin/fractal-tree.kotlin

@@ -0,0 +1,32 @@
+// version 1.1.2
+
+import java.awt.Color
+import java.awt.Graphics
+import javax.swing.JFrame
+
+class FractalTree : JFrame("Fractal Tree") {
+    init {
+        background = Color.black
+        setBounds(100, 100, 800, 600)
+        isResizable = false
+        defaultCloseOperation = EXIT_ON_CLOSE
+    }
+
+    private fun drawTree(g: Graphics, x1: Int, y1: Int, angle: Double, depth: Int) {
+        if (depth == 0) return
+        val x2 = x1 + (Math.cos(Math.toRadians(angle)) * depth * 10.0).toInt()
+        val y2 = y1 + (Math.sin(Math.toRadians(angle)) * depth * 10.0).toInt()
+        g.drawLine(x1, y1, x2, y2)
+        drawTree(g, x2, y2, angle - 20, depth - 1)
+        drawTree(g, x2, y2, angle + 20, depth - 1)
+    }
+
+    override fun paint(g: Graphics) {
+        g.color = Color.white
+        drawTree(g, 400, 500, -90.0, 9)
+    }
+}
+
+fun main(args: Array<String>) {
+    FractalTree().isVisible = true
+}