waypoint color converter

src/main/java/com/github/rfresh2/ColorHelper.java

@@ -0,0 +1,55 @@
+package com.github.rfresh2;
+
+import java.awt.*;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class ColorHelper {
+    /**
+     * Color indexes:
+     * 0 = black
+     * 1 = dark blue
+     * 2 = dark green
+     * 3 = dark aqua
+     * 4 = dark red
+     * 5 = dark purple
+     * 6 = gold
+     * 7 = gray
+     * 8 = dark gray
+     * 9 = blue
+     * 10 = green
+     * 11 = aqua
+     * 12 = red
+     * 13 = light purple
+     * 14 = yellow
+     * 15 = white
+     */
+    public static List<Color> xaeroColors = Stream.of(-16777216, -16777046, -16733696, -16733526, -5636096, -5635926, -22016, -5592406, -11184811, -11184641, -11141291, -11141121, -65536, -43521, -171, -1)
+        .map(Color::new)
+        .collect(Collectors.toList());
+
+    public static int nearestXaeroColorIndex(Color jmColor) {
+        int minIndex = 0;
+        double min = Double.MAX_VALUE;
+        for (int i = 0; i < xaeroColors.size(); i++) {
+            Color xaeroColor = xaeroColors.get(i);
+            double d = colorDistance(xaeroColor, jmColor);
+            if (d < min) {
+                minIndex = i;
+                min = d;
+            }
+        }
+        return minIndex;
+    }
+
+    public static double colorDistance(Color c1, Color c2) {
+        int red1 = c1.getRed();
+        int red2 = c2.getRed();
+        int rmean = (red1 + red2) >> 1;
+        int r = red1 - red2;
+        int g = c1.getGreen() - c2.getGreen();
+        int b = c1.getBlue() - c2.getBlue();
+        return Math.sqrt((((512+rmean)*r*r)>>8) + 4*g*g + (((767-rmean)*b*b)>>8));
+    }
+}

src/main/java/com/github/rfresh2/JourneyMapWaypointsToXaero.java

@@ -12,6 +12,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.awt.*;
 import java.io.File;
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
@@ -22,7 +23,6 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
-import java.util.Random;
 import java.util.stream.Collectors;
 
 public class JourneyMapWaypointsToXaero {
@@ -37,7 +37,6 @@ public class JourneyMapWaypointsToXaero {
         // we want to try modern, and if it fails, try legacy
         objectMapper.coercionConfigFor(LogicalType.Textual).setCoercion(CoercionInputShape.Integer, CoercionAction.Fail);
     }
-    static final Random random = new Random();
     static final Logger LOG = LoggerFactory.getLogger("JMWaypointsToXaero");
 
     public static void main(final String[] args) {
@@ -47,7 +46,6 @@ public static void main(final String[] args) {
         }
         String input = args[0];
         String output = args[1];
-
         Path folderIn = new File(String.format("%s/waypoints/", input)).toPath();
         LOG.info("Reading JM waypoints from path: {}", folderIn.toAbsolutePath());
         List<XaeroWaypoint> xaeroWaypoints = convertWaypoints(folderIn);
@@ -128,7 +126,7 @@ public static XaeroWaypoint convertWaypoint(final IJMWaypoint jmWaypoint) {
                 (dimension == -1 ? jmWaypoint.getX() / 8 : jmWaypoint.getX()), // jm stores all wp in ow coords
                 jmWaypoint.getY(),
                 (dimension == -1 ? jmWaypoint.getZ() / 8 : jmWaypoint.getZ()),
-                random.nextInt(16), // todo: convert JM rgb to some equivalent Xaero color
+                ColorHelper.nearestXaeroColorIndex(new Color(jmWaypoint.getR(), jmWaypoint.getG(), jmWaypoint.getB())),
                 !jmWaypoint.isEnabled(),
                 0,
                 "gui.xaero_default",

src/main/java/com/github/rfresh2/model/XaeroWaypoint.java

@@ -10,9 +10,6 @@ public class XaeroWaypoint {
     public int x;
     public int y;
     public int z;
-    /**
-     * Color index
-     */
     public int color;
     public boolean disabled;
     public int type;