From 5c19ed004482e7f48dd25ad111f46d515b7f6454 Mon Sep 17 00:00:00 2001
From: aarav-prakash <aarav.prakash57@gmail.com>
Date: Fri, 6 Feb 2026 16:42:38 +0530
Subject: [PATCH 1/2] Syntax Corrections

---
 include/PhysicsObject.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/PhysicsObject.h b/include/PhysicsObject.h
index c34edd4..cdb54e2 100644
--- a/include/PhysicsObject.h
+++ b/include/PhysicsObject.h
@@ -19,8 +19,8 @@ class PhysicsObject {
     PhysicsAttributes attributes;
 
    public:
-    virtual void PhysicsObject() = 0;
-    virtual void ~PhysicsObject() = 0;
+    virtual PhysicsObject() = 0;
+    virtual ~PhysicsObject() = 0;
 
     // virtual get.set;
     // apply force
@@ -30,6 +30,6 @@ class PhysicsObject {
     // bool checkCollision(PhysicsObject& other);
     // void resolveCollision(PhysicsObject& other);
 
-    virtual void update(sf::Time dt){} = 0; // do nothing :)
-    virtual void draw(sf::RenderWindow& window){} = 0;
+    virtual void update(sf::Time dt) = 0; // do nothing :)
+    virtual void draw(sf::RenderWindow& window) = 0;
 };
\ No newline at end of file

From 7bb2d4bd6ad2e40a97fd3c1b2ea997bc987a095c Mon Sep 17 00:00:00 2001
From: aarav-prakash <aarav.prakash57@gmail.com>
Date: Fri, 6 Feb 2026 23:43:17 +0530
Subject: [PATCH 2/2] Initial attempts at circle.h and circle.cpp.

---
 include/_circle.h        | 22 ++++++++++++++++++++++
 include/physics_object.h |  4 +++-
 src/circle.cpp           | 29 +++++++++++++++++++++++++++++
 3 files changed, 54 insertions(+), 1 deletion(-)
 create mode 100644 include/_circle.h
 create mode 100644 src/circle.cpp

diff --git a/include/_circle.h b/include/_circle.h
new file mode 100644
index 0000000..397ccd5
--- /dev/null
+++ b/include/_circle.h
@@ -0,0 +1,22 @@
+#ifndef CIRCLE_H
+#define CIRCLE_H
+
+#include <SFML/Graphics.hpp>
+#include "physics_object.h"
+
+class Circle : public PhysicsObject {
+private:
+    float radius;
+    sf::CircleShape shape;
+    ShapeID ID = ShapeID::CIRCLE_SHAPE;
+
+public:
+    Circle(float r, sf::Vector2f position);
+
+    void update(sf::Time deltaTime) override;
+    void draw(sf::RenderWindow& window) override;
+
+    float getRadius() const;
+};
+
+#endif
diff --git a/include/physics_object.h b/include/physics_object.h
index 5e1e0b2..d0f2dc8 100644
--- a/include/physics_object.h
+++ b/include/physics_object.h
@@ -1,4 +1,6 @@
 #include <SFML/Graphics.hpp>
+#include <SFML/System.hpp>
+#pragma once
 
 struct PhysicalAttributes {
     float mass;
@@ -30,7 +32,7 @@ class PhysicsObject {
     PhysicalAttributes attributes;
 
 public:
-    virtual ~PhysicsObject();
+    virtual ~PhysicsObject() = default;
 
     // virtual get.set;
     // apply force
diff --git a/src/circle.cpp b/src/circle.cpp
new file mode 100644
index 0000000..a981a09
--- /dev/null
+++ b/src/circle.cpp
@@ -0,0 +1,29 @@
+#include "_circle.h"
+
+Circle::Circle(float r, sf::Vector2f pos) : PhysicsObject(pos), radius(r) {
+    shape.setRadius(radius);
+    shape.setOrigin(radius, radius);
+    shape.setPosition(pos);
+}
+
+void Circle::update(sf::Time dt) {
+    sf::Vector2f pos = getPosition();
+    sf::Vector2f vel = getVelocity();
+    sf::Vector2f acc = getAcceleration();
+
+    float dts = dt.asSeconds();
+    pos += vel * dts + acc * (0.5f * dts * dts);
+    vel += acc * dts;
+
+    shape.setPosition(pos);
+    setVelocity(vel);
+    setPosition(pos);
+}
+
+void Circle::draw(sf::RenderWindow& window) {
+    window.draw(shape);
+}
+
+float Circle::getRadius() const {
+    return radius;
+}