Refactored the 2D and 3D game view class setups. Made scaling more logical.

#refactor #story[1275]
2026-05-09 14:28:43 +00:00 · 2017-09-26 00:55:28 +13:00
parent b3981b19e0
commit 51747e2d13
11 changed files with 498 additions and 931 deletions
@@ -0,0 +1,122 @@
+package seng302.model;
+
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+import javafx.geometry.Point2D;
+import seng302.utilities.GeoUtility;
+
+/**
+ * Created by cir27 on 26/09/17.
+ */
+public class ScaledPoint extends GeoPoint {
+
+    public enum ScaleDirection {
+        HORIZONTAL,
+        VERTICAL
+    }
+
+    private double x, y, scaleFactor;
+    private ScaleDirection scaleDirection;
+
+    private ScaledPoint(double lat, double lng, double x, double y, double scaleFactor, ScaleDirection direction) {
+        super(lat, lng);
+        this.x = x;
+        this.y = y;
+        this.scaleFactor = scaleFactor;
+        this.scaleDirection = direction;
+    }
+
+    public double getX() {
+        return x;
+    }
+
+    public double getY() {
+        return y;
+    }
+
+    public double getScaleFactor() {
+        return scaleFactor;
+    }
+
+    public ScaleDirection getScaleDirection() {
+        return scaleDirection;
+    }
+
+    public Point2D findScaledXY(GeoPoint unscaled) {
+        return findScaledXY(unscaled.getLat(), unscaled.getLng());
+    }
+
+    public Point2D findScaledXY(double unscaledLat, double unscaledLon) {
+        double distanceFromReference;
+        double angleFromReference;
+        double xReference = this.getX();
+        double yReference = this.getY();
+
+        angleFromReference = GeoUtility.getBearingRad(
+            this, new GeoPoint(unscaledLat, unscaledLon)
+        );
+        distanceFromReference = GeoUtility.getDistance(
+            this, new GeoPoint(unscaledLat, unscaledLon)
+        );
+        if (angleFromReference >= 0 && angleFromReference <= Math.PI / 2) {
+            xReference += scaleFactor * Math.sin(angleFromReference) * distanceFromReference;
+            yReference -= scaleFactor * Math.cos(angleFromReference) * distanceFromReference;
+        } else if (angleFromReference >= 0) {
+            angleFromReference = angleFromReference - Math.PI / 2;
+            xReference += scaleFactor * Math.cos(angleFromReference) * distanceFromReference;
+            yReference += scaleFactor * Math.sin(angleFromReference) * distanceFromReference;
+        } else if (angleFromReference < 0 && angleFromReference >= -Math.PI / 2) {
+            angleFromReference = Math.abs(angleFromReference);
+            xReference -= scaleFactor * Math.sin(angleFromReference) * distanceFromReference;
+            yReference -= scaleFactor * Math.cos(angleFromReference) * distanceFromReference;
+        } else {
+            angleFromReference = Math.abs(angleFromReference) - Math.PI / 2;
+            xReference -= scaleFactor * Math.cos(angleFromReference) * distanceFromReference;
+            yReference += scaleFactor * Math.sin(angleFromReference) * distanceFromReference;
+        }
+        return new Point2D(xReference, yReference);
+    }
+
+    public static ScaledPoint makeScaledPoint(double width, double height,
+        List<? extends GeoPoint> points, boolean centered) {
+
+        double referencePointX, referencePointY, scaleFactor, lat, lng;
+        ScaleDirection scaleDirection;
+        points = new ArrayList<>(points);
+        points.sort(Comparator.comparingDouble(GeoPoint::getLat));
+        GeoPoint minLatPoint = points.get(0);
+        GeoPoint maxLatPoint = points.get(points.size() - 1);
+
+        points.sort(Comparator.comparingDouble(GeoPoint::getLng));
+        GeoPoint minLonPoint = points.get(0);
+        GeoPoint maxLonPoint = points.get(points.size() - 1);
+
+        referencePointX = centered ? 0 : width / 2;
+        referencePointY = centered ? 0 : height / 2;
+
+        lat = (maxLatPoint.getLat() - minLatPoint.getLat()) / 2 + minLatPoint.getLat();
+        lng = (maxLonPoint.getLng() - minLonPoint.getLng()) / 2 + minLonPoint.getLng();
+
+        GeoPoint ref = new GeoPoint(lat, lng);
+
+        double vertDistance = GeoUtility.getDistance(
+            ref, new GeoPoint(ref.getLat(), maxLonPoint.getLng())
+        ) * 2.1;
+
+        double horiDistance = GeoUtility.getDistance(
+            ref, new GeoPoint(maxLatPoint.getLat(), ref.getLng())
+        ) * 2.1;
+
+        double vertScale = height / vertDistance;
+
+        if (horiDistance * vertScale > width) {
+            scaleFactor = width / horiDistance;
+            scaleDirection = ScaleDirection.HORIZONTAL;
+        } else {
+            scaleFactor = vertScale;
+            scaleDirection = ScaleDirection.VERTICAL;
+        }
+        return new ScaledPoint(lat, lng, referencePointX, referencePointY, scaleFactor, scaleDirection);
+    }
+}