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clamp?

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griffi-gh 2024-02-16 15:13:37 +01:00
parent c799d94e0a
commit bc3db2c95e
1 changed files with 30 additions and 13 deletions
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43
kubi/src/client_physics.rs
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@ -1,6 +1,6 @@
//TODO client-side physics
//TODO move this to shared
use glam::{vec3, IVec3, Mat4, Vec3};
use glam::{vec3, IVec3, Mat4, Vec3, Vec3Swizzles};
use shipyard::{track, AllStoragesView, Component, IntoIter, Unique, UniqueView, View, ViewMut};
use kubi_shared::{block::{Block, CollisionType}, transform::Transform};
use crate::{delta_time::DeltaTime, world::ChunkStorage};
@ -30,11 +30,12 @@ pub struct ClPhysicsActor {
pub disable: bool,
pub offset: Vec3,
pub forces: Vec3,
pub constant_forces: Vec3,
pub frame_velocity: Vec3,
pub velocity: Vec3,
pub terminal_velocity: f32,
pub decel: Vec3,
pub gravity_scale: f32,
pub max_velocity: (Option<f32>, Option<f32>, Option<f32>),
pub hack_xz_circular: bool,
flag_ground: bool,
flag_collision: bool,
}
@ -44,8 +45,8 @@ impl ClPhysicsActor {
self.forces += force;
}
pub fn apply_constant_force(&mut self, force: Vec3) {
self.constant_forces += force;
pub fn add_frame_velocity(&mut self, force: Vec3) {
self.frame_velocity += force;
}
pub fn on_ground(&self) -> bool {
@ -60,12 +61,13 @@ impl Default for ClPhysicsActor {
disable: false,
offset: vec3(0., 1.5, 0.),
forces: Vec3::ZERO,
constant_forces: Vec3::ZERO,
frame_velocity: Vec3::ZERO,
velocity: Vec3::ZERO,
terminal_velocity: 40.,
//constant deceleration, in ratio per second. e.g. value of 1 should stop the actor in 1 second.
decel: vec3(0., 0., 0.),
decel: vec3(1., 0., 1.),
gravity_scale: 1.,
max_velocity: (Some(20.), None, Some(20.)),
hack_xz_circular: true,
flag_ground: false,
flag_collision: false,
}
@ -152,16 +154,31 @@ pub fn update_client_physics_late(
}
}
//clamp velocity
let max_velocity = actor.max_velocity;
if actor.hack_xz_circular && actor.max_velocity.0.is_some() && (actor.max_velocity.0 == actor.max_velocity.2) {
actor.velocity.y = actor.velocity.y.clamp(-max_velocity.1.unwrap_or(f32::MAX), max_velocity.1.unwrap_or(f32::MAX));
let clamped = actor.velocity.xz().clamp_length_max(actor.max_velocity.0.unwrap_or(f32::MAX));
actor.velocity.x = clamped.x;
actor.velocity.z = clamped.y;
} else {
actor.velocity = vec3(
actor.velocity.x.clamp(-max_velocity.0.unwrap_or(f32::MAX), max_velocity.0.unwrap_or(f32::MAX)),
actor.velocity.y.clamp(-max_velocity.1.unwrap_or(f32::MAX), max_velocity.1.unwrap_or(f32::MAX)),
actor.velocity.z.clamp(-max_velocity.2.unwrap_or(f32::MAX), max_velocity.2.unwrap_or(f32::MAX)),
);
}
//Apply velocity
actor_position += (actor.velocity + actor.constant_forces) * dt.0.as_secs_f32();
actor.constant_forces = Vec3::ZERO;
actor_position += (actor.velocity + actor.frame_velocity) * dt.0.as_secs_f32();
actor.frame_velocity = Vec3::ZERO;
actor_position += actor.offset;
transform.0 = Mat4::from_scale_rotation_translation(scale, rotation.normalize(), actor_position);
//Apply "friction"
// let actor_velocity = actor.velocity;
// let actor_decel = actor.decel;
// actor.velocity -= actor_velocity * actor_decel * dt.0.as_secs_f32();
let actor_velocity = actor.velocity;
let actor_decel = actor.decel;
actor.velocity -= actor_velocity * actor_decel * dt.0.as_secs_f32();
}
// for (_, mut transform) in (&controllers, &mut transforms).iter() {
// let (scale, rotation, mut translation) = transform.0.to_scale_rotation_translation();