Create collisions.py

added basic implementation of collision detection

Author: Andy666Fox

physics/collisions.py

@@ -0,0 +1,22 @@
+from typing import Tuple
+import numpy as np
+
+
+# Basic implementation of the collision of two circles.
+def circle_collision(fpos: Tuple[float, float, float], spos: Tuple[float, float, float]) -> bool:
+    # difference by XY axes
+    dx = fpos[0] - spos[0]
+    dy = fpos[1] - spos[1]
+    
+    
+    # Euclidean distance between the centers of circles
+    distance = np.sqrt(pow(dx, 2) + pow(dy, 2))
+    
+    # minimum possible distance between circles, without collision
+    min_distance = fpos[2] + fpos[2]
+    
+    # If actual distance smaller than minimal possible, cirlces collides
+    if distance < min_distance:
+        return True
+    
+    return False