khora_data/ecs/components/physics/physics_material.rs
1// Copyright 2025 eraflo
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use khora_macros::Component;
16use serde::{Deserialize, Serialize};
17
18/// Defines the physical properties of a collider surface.
19#[derive(Debug, Clone, Copy, Component, Serialize, Deserialize)]
20#[component(domain = Physics)]
21pub struct PhysicsMaterial {
22 /// Friction coefficient.
23 pub friction: f32,
24 /// Restitution (bounciness) coefficient.
25 pub restitution: f32,
26}
27
28impl Default for PhysicsMaterial {
29 fn default() -> Self {
30 Self {
31 friction: 0.5,
32 restitution: 0.0,
33 }
34 }
35}