Fix easing functions in orx-easing, add demo

2020-04-07 23:52:28 +02:00
parent b3fd0a0068
commit 32d0b98338
3 changed files with 163 additions and 44 deletions
--- a/orx-easing/src/demo/kotlin/DemoEasings01.kt
+++ b/orx-easing/src/demo/kotlin/DemoEasings01.kt
@@ -0,0 +1,82 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.extras.easing.*
+import org.openrndr.math.Vector2
+
+fun main() {
+    application {
+
+        configure {
+            width = 1280
+            height = 1080
+        }
+        program {
+            fun drawEasing(f: EasingFunction) {
+                drawer.stroke = ColorRGBa.PINK
+                val points = mutableListOf<Vector2>()
+                for (i in 0 .. 40) {
+                    val y = 40.0 - f(i / 40.0, 0.0, 1.0, 1.0) * 40.0
+                    points.add(Vector2(i*10.0, y))
+                }
+                drawer.lineStrip(points)
+
+                drawer.stroke = ColorRGBa.GRAY
+                drawer.lineSegment(0.0, 40.0, 400.0, 40.0)
+
+
+                drawer.lineSegment(0.0, 20.0, 400.0, 20.0)
+
+            }
+            extend {
+                drawer.stroke = ColorRGBa.WHITE
+
+                val functions = listOf(
+                        ::easeLinear,
+                        ::easeQuadIn,
+                        ::easeQuadOut,
+                        ::easeQuadInOut,
+                        ::easeCubicIn,
+                        ::easeCubicOut,
+                        ::easeCubicInOut,
+                        ::easeCircIn,
+                        ::easeCircOut,
+                        ::easeCircInOut,
+                        ::easeQuartIn,
+                        ::easeQuartOut,
+                        ::easeQuartInOut,
+                        ::easeExpoIn,
+                        ::easeExpoOut,
+                        ::easeExpoInOut,
+                        ::easeQuintIn,
+                        ::easeQuintOut,
+                        ::easeQuintInOut,
+                        ::easeSineIn,
+                        ::easeSineOut,
+                        ::easeSineInOut,
+                        ::easeBackIn,
+                        ::easeBackOut,
+                        ::easeBackInOut,
+                        ::easeElasticIn,
+                        ::easeElasticOut,
+                        ::easeElasticInOut,
+                        ::easeBounceIn,
+                        ::easeBounceOut,
+                        ::easeBounceInOut
+
+                )
+
+                var i = 0
+                for (f in functions) {
+                    drawEasing(f)
+                    drawer.translate(0.0, 50.0)
+                    i ++
+                    if (i > 19) {
+                        drawer.translate(450.0, -20 * 50.0)
+                        i = 0
+                    }
+                }
+            }
+        }
+    }
+
+}