fix a dumb bug and minor adjustment to gradle (minors)

gradle.properties

@@ -48,7 +48,7 @@ mod_name=Fretux's Skill Engine
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=All Rights Reserved
 # The mod version. See https://semver.org/
-mod_version=1.1.0
+mod_version=1.1.1
 # The group ID for the mod. It is only important when publishing as an artifact to a Maven repository.
 # This should match the base package used for the mod sources.
 # See https://maven.apache.org/guides/mini/guide-naming-conventions.html

src/main/java/net/fretux/skillengine/client/SkilltreeScreen.java

@@ -180,7 +180,7 @@ public class SkilltreeScreen extends Screen {
 
     private int[] worldToScreen(float wx, float wy) {
         double sx = width / 2.0 + panX + wx * zoom;
-        double sy = height / 2.0 + panY + wy * zoom;
+        double sy = height / 2.0 + panY - wy * zoom;
         return new int[]{(int) sx, (int) sy};
     }