Trying to write the correct formulas for drawing round hitboxes

src/gui/EditableCanvas.java

@@ -1,5 +1,7 @@
 package gui;
 
+import java.awt.BasicStroke;
+import java.awt.Color;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.event.MouseEvent;
@@ -79,7 +81,14 @@ public class EditableCanvas extends JPanel implements MouseListener, MouseMotion
    @Override
     protected void paintComponent(Graphics g) {
         super.paintComponent(g);
-        g.drawImage(image, 0, 0, this); 
+        if(image!=null) {
+	        g.drawImage(image, 0, 0, this); 
+	        g.setColor(Color.darkGray);
+	        g.drawRect(0, 0, image.getWidth(), image.getHeight());
+	        g.setColor(Color.RED);
+	        g.fillOval(image.getWidth()/2, image.getHeight(), 2, 2);
+	        g.setColor(Color.green);
+        }
         if(entity != null) {
         	drawing((Graphics2D)g);
         }

src/gui/HitboxEditor.java

@@ -16,6 +16,7 @@ import events.EntityDrawboxChangedListener;
 import events.EntityHitboxChangedEvent;
 import events.EntityHitboxChangedListener;
 import model.Hitbox;
+import model.HitboxCircle;
 import model.HitboxRectangle;
 import model.Point;
 import repository.Project;
@@ -42,12 +43,14 @@ public class HitboxEditor extends Editable {
 
         changeInRectangleHitboxJButton.addActionListener((e)->{
         	functionClearHitboxJButton();
-        	//canvas.setHitboxRectengleRenderingFunction();
+        	entity.setHitbox(new HitboxRectangle("Rectangle",entity));
+        	canvas.setHitboxRectengleRenderingFunction();
         	//Сделать создание нового Hitbox формы Rectengle
         });
         changeInCircleHitboxJButton.addActionListener((e)->{
         	functionClearHitboxJButton();
-        	//canvas.setHitboxCircleRenderingFunction();
+        	entity.setHitbox(new HitboxCircle("Circle",entity));
+        	canvas.setHitboxCircleRenderingFunction();
         	//Сделать создание нового Hitbox формы Circle
         });
         

src/gui/render/HitboxCircleRenderingFunction.java

@@ -21,7 +21,7 @@ public class HitboxCircleRenderingFunction implements ShapeRenderingFunction {
 	public void drawing(Graphics2D g) {
 		HitboxCircle nowHitbox = (HitboxCircle)entity.getHitbox();
 		if(nowHitbox.getRadius()!=0) {
-			g.drawOval((int)nowHitbox.getCurrentRefPoint().x, (int)nowHitbox.getCurrentRefPoint().y, (int)nowHitbox.getRadius()*2, (int)nowHitbox.getRadius()); 
+			g.drawOval((int)nowHitbox.getCurrentRefPoint().x, (int)nowHitbox.getCurrentRefPoint().y, (int)nowHitbox.getRadius()*4, (int)(nowHitbox.getRadius()*2)); 
 		}else if(firstIsoPoint != null) {
 			currentRadius = Math.abs((int)firstIsoPoint.x-(int)currentIsoPoint.x);
 			g.drawOval((int)firstIsoPoint.x, (int)firstIsoPoint.y, currentRadius, currentRadius/2); 
@@ -60,5 +60,6 @@ public class HitboxCircleRenderingFunction implements ShapeRenderingFunction {
 		currentRadius = 0;
 		HitboxCircle nowhitbox = (HitboxCircle)entity.getHitbox();
 		nowhitbox.setRadius(0);
+		System.err.println("radius: "+nowhitbox.getRadius());
 	}
 }

src/model/Entity.java

@@ -48,8 +48,8 @@ public class Entity {
 		thisDrawbox = outDrawbox;
 	};
 	
-	public void setHitbox(Hitbox outHitbox) {
-		thisHitbox = outHitbox;
+	public void setHitbox(Hitbox inputHitbox) {
+		thisHitbox = inputHitbox;
 	};
 	
 	public String getName() {

src/model/HitboxCircle.java

@@ -2,6 +2,7 @@ package model;
 
 public class HitboxCircle extends Hitbox {
 	private float radiusHitbox;
+	Point cartesianCenterImagePoint= new Point(0,0);
 	private Point currentRefPoint= new Point(0,0);
 	public HitboxCircle(String[] dataHitbox, Entity owner){
 		super(dataHitbox[0]);
@@ -14,11 +15,14 @@ public class HitboxCircle extends Hitbox {
 		radiusHitbox = 0;
 	}
 	private void parseStringToCircleHitbox(String[] informations) {
+		cartesianCenterImagePoint = isometricToCartesian(owner.getImage().getWidth(),owner.getImage().getHeight(),cartesianCenterImagePoint);
 		referencePoint.x = Float.parseFloat(informations[1]);
 		referencePoint.y = Float.parseFloat(informations[2]);
-		currentRefPoint.x = owner.getImage().getWidth()/2+referencePoint.x;
-		currentRefPoint.y = owner.getImage().getHeight()+referencePoint.y;
-		radiusHitbox = Float.parseFloat(informations[3]);
+		currentRefPoint = cartesianToIsometric(cartesianCenterImagePoint.x-referencePoint.x,cartesianCenterImagePoint.y-referencePoint.y,currentRefPoint);
+		float chisloPizdec = (float)Math.sqrt(2);
+		radiusHitbox = Float.parseFloat(informations[3])/chisloPizdec;
+		currentRefPoint.x -=radiusHitbox;
+		currentRefPoint.y -=radiusHitbox*2;
 	}
 	@Override
 	public String listPointsToString() {