Add demoAllGradients

2020-05-15 17:22:12 +02:00
parent 01ead9145d
commit 1f312ed9c8
1 changed files with 72 additions and 0 deletions
--- a/orx-shade-styles/src/demo/kotlin/DemoAllGradients01.kt
+++ b/orx-shade-styles/src/demo/kotlin/DemoAllGradients01.kt
@@ -0,0 +1,72 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.isolated
+import org.openrndr.extensions.SingleScreenshot
+import org.openrndr.extra.shadestyles.*
+import org.openrndr.math.Polar
+
+fun main() {
+    application {
+        configure {
+            width = 1000
+        }
+        program {
+            if (System.getProperty("takeScreenshot") == "true") {
+                extend(SingleScreenshot()) {
+                    this.outputFile = System.getProperty("screenshotPath")
+                }
+            }
+
+            // Create gradients with initial colors
+            val gradients = listOf(
+                    radialGradient(ColorRGBa.PINK, ColorRGBa.WHITE),
+                    angularGradient(ColorRGBa.PINK, ColorRGBa.WHITE),
+                    linearGradient(ColorRGBa.PINK, ColorRGBa.WHITE),
+                    halfAngularGradient(ColorRGBa.PINK, ColorRGBa.WHITE)
+            )
+
+            extend {
+                gradients.forEachIndexed { i, gradient ->
+                    for (column in 0 until 10) {
+                        val color1 = ColorRGBa.PINK.toHSVa().shiftHue(column * 12.0)
+                                .scaleValue(0.5).toRGBa()
+
+                        drawer.isolated {
+                            when (gradient) {
+                                is RadialGradient -> {
+                                    gradient.color1 = color1
+                                    gradient.exponent = column / 3.0 + 0.3
+                                    gradient.length = 0.6
+                                    gradient.offset = Polar(
+                                            (seconds + column) * 15.0, 0.3).cartesian
+                                }
+                                is AngularGradient -> {
+                                    gradient.color1 = color1
+                                    gradient.exponent = column / 3.0 + 0.3
+                                    gradient.rotation = (seconds - column) * 10.0
+                                    gradient.offset = Polar(
+                                            (seconds + column) * 30.0, 0.3).cartesian
+                                }
+                                is LinearGradient -> {
+                                    gradient.color1 = color1
+                                    gradient.exponent = column / 3.0 + 0.3
+                                    gradient.rotation = seconds * 10.0
+                                }
+                                is HalfAngularGradient -> {
+                                    gradient.color1 = color1
+                                    gradient.exponent = column / 3.0 + 0.3
+                                    gradient.rotation = (column - seconds) * 10.0
+                                    gradient.offset = Polar(
+                                            (seconds + column) * 8.0, 0.3).cartesian
+                                }
+                            }
+                            shadeStyle = gradient
+                            rectangle(column * width / 10.0, i * height / 4.0,
+                                    width / 10.0, height / 4.0)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}