added collision detection between primitives like circle, rectangle e…

physics/collision_detection.py

@@ -0,0 +1,40 @@
+class Circle:
+    def __init__(self, x, y, radius):
+        self.x = x
+        self.y = y
+        self.radius = radius
+
+
+class Rectangle:
+    def __init__(self, x, y, width, height):
+        self.x = x
+        self.y = y
+        self.width = width
+        self.height = height
+
+
+class CollisionDetection:
+    @staticmethod
+    def circle_circle_collision(circle1, circle2):
+        dx = circle1.x - circle2.x
+        dy = circle1.y - circle2.y
+        distance_squared = dx**2 + dy**2
+        radius_sum = circle1.radius + circle2.radius
+        return distance_squared <= radius_sum**2
+
+    @staticmethod
+    def rectangle_rectangle_collision(rect1, rect2):
+        return not (
+            rect1.x + rect1.width < rect2.x
+            or rect1.x > rect2.x + rect2.width
+            or rect1.y + rect1.height < rect2.y
+            or rect1.y > rect2.y + rect2.height
+        )
+
+    @staticmethod
+    def circle_rectangle_collision(circle, rect):
+        closest_x = max(rect.x, min(circle.x, rect.x + rect.width))
+        closest_y = max(rect.y, min(circle.y, rect.y + rect.height))
+        dx = circle.x - closest_x
+        dy = circle.y - closest_y
+        return dx**2 + dy**2 <= circle.radius**2