[orx-fcurve] Add mfcurve, FCurve.min, FCurve.max, DemoFCurveSheet01.kt

2024-05-13 08:30:05 +02:00
parent 968d544d3b
commit cc92dc26b2
6 changed files with 348 additions and 50 deletions
--- a/orx-fcurve/src/jvmDemo/kotlin/DemoFCurveSheet01.kt
+++ b/orx-fcurve/src/jvmDemo/kotlin/DemoFCurveSheet01.kt
@@ -0,0 +1,54 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.loadFont
+import org.openrndr.extra.fcurve.efcurve
+import org.openrndr.extra.fcurve.fcurve
+import org.openrndr.math.Vector2
+
+fun main() = application {
+    configure {
+        width = 720
+        height = 720
+    }
+    program {
+        val fcurveTexts = listOf(
+            //"(l 35.0 25.0 h {175-35})[4]", // linear steps
+            "(c 33% 0% 67% 67% 35.0 25.0 h {175-35})[4]", // ease-in steps
+            "(c 50% 50% 50% 100% 35.0 25.0 h {175-35})[4]", // ease-out steps
+            "(c 50% 0% 50% 100% 35.0 25.0 h {175-35})[4]", // ease-in-out steps
+            "(c 95% 0% 100% 100% 35.0 25.0 h {175-35})[4]",  // arc-in steps
+            "(c 0% 0% 5% 100% 35.0 25.0 h {175-35})[4]", // arc-out steps
+            "(c 95% 0% 100% 100% 17.5 12.5 c 0% 0% 5% 100% 17.5 12.5 h {175-35})[4]", // arc-out steps
+        )
+
+        val fcurves = fcurveTexts.map { fcurve(efcurve(it)) }
+
+        extend {
+            drawer.clear(ColorRGBa.WHITE)
+
+            drawer.fontMap = loadFont("demo-data/fonts/IBMPlexMono-Regular.ttf", 16.0)
+            drawer.translate(10.0, 20.0)
+
+            drawer.stroke = ColorRGBa.PINK
+            drawer.lineSegment(mouse.position.x - 10.0, 0.0, mouse.position.x - 10.0, height * 1.0)
+
+            fun color(i: Int): ColorRGBa =
+                ColorRGBa.BLUE.toHSVa().shiftHue(i * 30.0).saturate(0.5).shade(0.9).toRGBa()
+
+            for (i in fcurveTexts.indices) {
+                drawer.fill = color(i)
+                drawer.text(fcurveTexts[i], 0.0, 120.0)
+
+                drawer.stroke = color(i).opacify(0.25)
+                drawer.lineSegment(0.0, 100.0, width - 20.0, 100.0)
+
+                drawer.stroke = color(i)
+                val y = 100.0 - fcurves[i].value(mouse.position.x - 10.0)
+                drawer.contours(fcurves[i].contours(offset = Vector2(0.0, 100.0)))
+                drawer.circle(mouse.position.x - 10.0, y, 10.0)
+
+                drawer.translate(0.0, 110.0)
+            }
+        }
+    }
+}