An improved algorithm of collision detection in 2D Grapple Games

The goal of collision detection is to automatically report interference between two or more geometric objects in static and dynamic environments. We introduce a new approach to the problem of collision detection in 2D Grapple Games. The objects for collision detection are bounded by the axis-aligned rectangle and circle for a tightly fitting the objects' shapes. To detect the collision exactly, an improved algorithm is presented. We set coordinate values of rectangular center and four vertexes and use the distance from a Point to a line to see whether the object's vertexes are enclosed in the other object. if it is true, a collision occurs. Collision detection is part of the handling collision and its result is a Boolean judgment about the collision of two or more objects colliding.