Struct PhysicsWorld 

pub struct PhysicsWorld {
    pub gravity: Vec2,
    pub damping: f32,
    /* private fields */
}

Core 2D physics simulation for the arena.

Fields

gravity: Vec2

damping: f32

Implementations

impl PhysicsWorld

pub fn new() -> Self

pub fn add_object(&mut self, obj: PhysicsObject) -> ObjectId

Add a physics object, returning its unique ID.

pub fn remove_object(&mut self, id: ObjectId) -> Option<PhysicsObject>

Remove a physics object.

pub fn get_object(&self, id: ObjectId) -> Option<&PhysicsObject>

Get a reference to an object.

pub fn get_object_mut(&mut self, id: ObjectId) -> Option<&mut PhysicsObject>

Get a mutable reference to an object.

pub fn object_count(&self) -> usize

Number of active objects.

pub fn object_ids(&self) -> Vec<ObjectId>

Iterate over all object IDs.

pub fn step(&mut self, dt: f32) -> (Vec<CollisionPair>, Vec<TriggerEvent>)

Step the physics world forward by dt seconds.

Returns (collision_pairs, trigger_events) from this step.

pub fn raycast(&self, origin: Vec2, dir: Vec2, max_dist: f32) -> Option<RayHit>

Cast a ray into the world.

pub fn overlap_test(&self, shape: &CollisionShape, pos: Vec2) -> Vec<ObjectId>

Test for all objects overlapping a given shape at a position.

pub fn apply_radial_force(&mut self, center: Vec2, radius: f32, strength: f32)

Apply a radial force from a point (explosion, vortex).

pub fn apply_vortex_force( &mut self, center: Vec2, radius: f32, pull_strength: f32, spin_strength: f32, )

Apply a vortex (pull toward center with tangential spin).