[orx-jvm] Move panel, gui, dnk3, keyframer, triangulation to orx-jvm

orx-jvm/orx-dnk3/src/main/kotlin/query/Query.kt

@@ -0,0 +1,56 @@
+package org.openrndr.extra.dnk3.query
+
+import org.openrndr.extra.dnk3.Material
+import org.openrndr.extra.dnk3.Mesh
+import org.openrndr.extra.dnk3.Scene
+import org.openrndr.extra.dnk3.SceneNode
+
+fun Scene.findNodeByName(name: String): SceneNode? {
+    return root.findNodeByName(name)
+}
+
+fun SceneNode.findNodeByName(name: String): SceneNode? {
+
+    if (this.name == name) {
+        return this
+    } else {
+        for (child in children) {
+            val candidate = child.findNodeByName(name)
+            if (candidate != null) {
+                return candidate
+            }
+        }
+    }
+    return null
+}
+
+fun SceneNode.findMaterialByName(name: String): Material? {
+    return allMaterials().find { it.name == name }
+}
+
+fun Scene.allMaterials(): Set<Material> {
+    return root.allMaterials()
+}
+
+fun SceneNode.allMaterials(): Set<Material> {
+    val materials = mutableSetOf<Material>()
+    fun processNode(node: SceneNode) {
+        for (entity in node.entities) {
+            when (entity) {
+                is Mesh -> {
+                    materials.addAll(entity.primitives.map { it.material })
+                }
+                else -> {
+                }
+            }
+        }
+
+        for (child in node.children) {
+            processNode(child)
+        }
+    }
+    processNode(this)
+    return materials
+}
+
+