Module collision 

Collision detection module.

Provides multiple collision detection algorithms:

• AABB (Axis-Aligned Bounding Box) — fastest, axis-aligned only
• Circle — for circular hitboxes
• SAT (Separating Axis Theorem) — for oriented rectangles and convex polygons
• Broad phase — spatial hashing for large numbers of objects

All collision functions return a CollisionInfo struct with penetration depth and normal, enabling proper resolution — unlike macroquad which has no collision detection at all.

Structs

CircleCollider

A circle collider.

CollisionInfo

Result of a collision test.

Ray

A 2D ray.

RaycastHit

Result of a ray cast.

SpatialHash

A simple spatial hash grid for broad-phase collision detection.

Functions

circle_vs_circle

Test collision between two circles.

circle_vs_rect

Test collision between a circle and an AABB rectangle.

point_in_circle

Check if a point is inside a circle.

point_in_rect

Check if a point is inside a rectangle.

ray_vs_circle

Cast a ray against a circle.

ray_vs_rect

Cast a ray against an AABB.

rect_vs_rect

Test collision between two AABBs with penetration info.

resolve_aabb_collision

Resolve a collision by pushing shape A out of shape B.