atan2

src/main/java/net/aufdemrand/denizencore/objects/Element.java

@@ -2173,6 +2173,31 @@ public dObject run(Attribute attribute, dObject object) {
             }
         });
 
+        // <--[tag]
+        // @attribute <el@element.atan2[<#.#>]>
+        // @returns Element(Decimal)
+        // @group math
+        // @description
+        // Interprets the element to be a Y value and the input value to be an X value (meaning: <Y.atan2[X]>),
+        // and returns an angle representing the vector of (X,Y).
+        // -->
+        registerTag("atan2", new TagRunnable.ObjectForm() {
+            @Override
+            public dObject run(Attribute attribute, dObject object) {
+                if (!attribute.hasContext(1)) {
+                    dB.echoError("The tag el@element.atan2[...] must have a value.");
+                    return null;
+                }
+                Element ele = (Element) object;
+                if (!ele.isDouble()) {
+                    dB.echoError("Element '" + ele + "' is not a valid decimal number!");
+                    return null;
+                }
+                return new Element(Math.atan2(ele.asDouble(), attribute.getDoubleContext(1)))
+                        .getObjectAttribute(attribute.fulfill(1));
+            }
+        });
+
         // <--[tag]
         // @attribute <el@element.round_to[<#>]>
         // @returns Element(Decimal)