Add length sample

sample/length/.gitignore

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+/build

sample/length/build.gradle.kts

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+import com.soywiz.korge.gradle.*
+
+apply<KorgeGradlePlugin>()
+
+korge {
+	id = "com.soywiz.samples.length"
+	targetDefault()
+}

sample/length/src/commonMain/kotlin/main.kt

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+import com.soywiz.korge.*
+import com.soywiz.korge.component.length.*
+import com.soywiz.korge.view.*
+import com.soywiz.korim.color.*
+import com.soywiz.korma.geom.*
+
+suspend fun main() {
+    Korge(width = 512, height = 512, bgcolor = Colors["#2b2b2b"], clipBorders = false, scaleAnchor = Anchor.TOP_LEFT) {
+	//Korge(width = 512, height = 512, bgcolor = Colors["#2b2b2b"], clipBorders = false, scaleAnchor = Anchor.TOP_LEFT, scaleMode = ScaleMode.NO_SCALE) {
+	//Korge(width = 512, height = 512, bgcolor = Colors["#2b2b2b"]) {
+		solidRect(512, 512, Colors.DARKOLIVEGREEN).lengths {
+			//width = 100.vw
+			//height = 100.vh
+		}
+        solidRect(0, 0, Colors.RED).centered.lengths {
+        	x = 50.vw
+			y = 50.vh
+			//y = 50.vh - (3.cm / 2)
+			width = 50.vw
+			height = 3.cm
+		}
+    }
+}

sample/length/src/commonMain/resources/korge.atlas

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+korge

sample/length/src/commonTest/kotlin/test.kt

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+import com.soywiz.klock.*
+import com.soywiz.korge.input.*
+import com.soywiz.korge.tests.*
+import com.soywiz.korge.tween.*
+import com.soywiz.korge.view.*
+import com.soywiz.korim.color.*
+import com.soywiz.korma.geom.*
+import kotlin.test.*
+
+class MyTest : ViewsForTesting() {
+    @Test
+    fun test() = viewsTest {
+        val log = arrayListOf<String>()
+        val rect = solidRect(100, 100, Colors.RED)
+        rect.onClick {
+            log += "clicked"
+        }
+        assertEquals(1, views.stage.numChildren)
+        rect.simulateClick()
+        assertEquals(true, rect.isVisibleToUser())
+        tween(rect::x[-102], time = 10.seconds)
+        assertEquals(Rectangle(x=-102, y=0, width=100, height=100), rect.globalBounds)
+        assertEquals(false, rect.isVisibleToUser())
+        assertEquals(listOf("clicked"), log)
+    }
+}