Jump curve coloring

See #general-programming in the Mindustry Discord server:
https://discord.com/channels/391020510269669376/663854113418641429/1256146387834372106

Co-authored-by: Ilya246 <ilyukarno@gmail.com>

core/src/mindustry/logic/LCanvas.java

@@ -26,6 +26,7 @@ public class LCanvas extends Table{
     //ew static variables
     static LCanvas canvas;
     private static boolean dynamicJumpHeights = false;
+    private static boolean coloredJumps = false;
 
     public DragLayout statements;
     public ScrollPane pane;
@@ -112,6 +113,7 @@ public class LCanvas extends Table{
         jumps = statements.jumps;
 
         dynamicJumpHeights = Core.settings.getBool("dynamicjumpheights", false);
+        coloredJumps = Core.settings.getBool("coloredjumps", false);
 
         pane = pane(t -> {
             t.center();
@@ -204,6 +206,7 @@ public class LCanvas extends Table{
         public Group jumps = new WidgetGroup();
         private Seq<JumpCurve> processedJumps = new Seq<JumpCurve>();
         public boolean updateJumpHeights = true;
+        private Rand rand = new Rand();
 
         {
             setTransform(true);
@@ -264,6 +267,16 @@ public class LCanvas extends Table{
                 updateJumpHeights = false;
             }
 
+            if(coloredJumps){
+                jumps.getChildren().each(e -> {
+                    if(!(e instanceof JumpCurve e2) || e2.button.to.get() == null) return;
+                    int idx = e2.button.to.get().index;
+                    if(dragging != null && idx >= dragging.index) idx += 1;
+                    rand.setSeed((long) idx);
+                    Color.HSVtoRGB(rand.random(0.0f, 360.0f), rand.random(80.0f, 90.0f), 100.0f, e2.button.defaultColor);
+                });
+            }
+
             if(parent != null) parent.invalidateHierarchy();//don't invalid self
 
             if(parent != null && parent instanceof Table){
@@ -533,7 +546,7 @@ public class LCanvas extends Table{
 
     public static class JumpButton extends ImageButton{
         Color hoverColor = Pal.place;
-        Color defaultColor = Color.white;
+        Color defaultColor = new Color(Color.white);
         Prov<StatementElem> to;
         boolean selecting;
         float mx, my;
@@ -673,6 +686,7 @@ public class LCanvas extends Table{
         public void drawCurve(float x, float y, float x2, float y2){
             Lines.stroke(4f, button.color);
             Draw.alpha(parentAlpha);
+            Draw.color(button.color);
 
             // exponential smoothing
             uiHeight = Mathf.lerp(100f + 100f * (float) predHeight, uiHeight, dynamicJumpHeights ? Mathf.pow(0.9f, Time.delta) : 0);
@@ -698,6 +712,7 @@ public class LCanvas extends Table{
             x2 + uiHeight, y2,
             x2, y2,
             Math.max(18, (int)(Mathf.dst(x, y, x2, y2) / 6)));
+            Draw.reset();
         }
 
         public void prepareHeight(){

core/src/mindustry/ui/dialogs/SettingsMenuDialog.java

@@ -504,6 +504,7 @@ public class SettingsMenuDialog extends BaseDialog{
         }
 
         graphics.checkPref("dynamicjumpheights", true);
+        graphics.checkPref("coloredjumps", true);
     }
 
     public void exportData(Fi file) throws IOException{