use std::path::PathBuf;
use bevy_ecs::entity::Entity;
use super::TypeRegistry;
use crate::assets::{AlphaMode, MaterialAsset, MaterialModel};
use crate::runtime::ClothSheet;
use crate::runtime::Rope;
use crate::runtime::{
AmbientLight, AmbientOcclusion, Antialiasing, Articulation, AutoExposure,
AutoSimulation, AxisLock, AxisMotion, Bloom, BurstEmitter, CameraScreen,
CameraShake, ColorGrading, ColorLut, CombineMode, Connection, Connections,
Counter, CullingMode, DepthOfField, DeterminismMode, Dialogue,
DialogueChoice, DialogueLine, Easing, EnvironmentMap, FieldKind, Flash,
FluidBlock, Fog, ForceField, GravityVolume, GroundSurface, Health,
Heightfield, HudAnchor, HudElement, InputAction, Joint, JointAxis,
JointKind, JointMotor, JointSpring, LightCookie, LootEntry, LootTable,
MeshSurfaces, MotionBlur, ObjectState, PhysicsMaterial, PhysicsSettings,
PhysicsSyncMode, Pickup, PlatformerController, PlayerController, Polygon2d,
PostVolume, QualityProfile, RandomSeed, ReflectionProbe, RenderBounds,
RenderSettings, ReverbZone, SceneBackground, SceneInstance, ShadowQuality,
SkyLight, SlideSound, SoftBlock, SoundCue, SoundId, SpawnGrid, Squash,
StateAction, StateTransition, TileKind, TileMap, ToneMapper, ToneMapping,
Tween, TweenProperty, TweenRepeat, Vehicle, WaterBody, Wheel,
};
use crate::runtime::{
Animation, AnimationClip, AnimationCompare, AnimationLayer,
AnimationMarker, AnimationProperty, AnimationTrack, AnimationTransition,
BlendPoint, HumanoidBone, Ik, IkKind, Interpolation, Keyframe, Morph,
Ragdoll, RagdollBone, RootMotion, Skin,
};
use crate::runtime::{
ColorKey, CurveKey, EmitterShape, ParticleBlend, ParticleBurst,
ParticleEmitter, ParticleFacing, ParticleSpace, ParticleSprite,
};
crate::reflect! {
struct AmbientLight {
color: [f32; 3] { unit: "linear RGB", min: 0.0, max: 1.0, color: true },
intensity: f32 { unit: "factor", min: 0.0 },
}
}
crate::reflect! {
struct SkyLight {
sky_color: [f32; 3] {
unit: "linear RGB", min: 0.0, max: 1.0, color: true,
doc: "seen by up-facing surfaces",
},
ground_color: [f32; 3] {
unit: "linear RGB", min: 0.0, max: 1.0, color: true,
doc: "seen by down-facing surfaces",
},
intensity: f32 { unit: "factor", min: 0.0 },
}
}
crate::reflect! {
enum ToneMapper { Linear, Reinhard, Aces }
}
crate::reflect! {
struct ToneMapping {
mapper: ToneMapper,
exposure: f32 { unit: "factor", min: 0.001 },
}
}
crate::reflect! {
enum RenderBounds {
Sphere {
center: [f32; 3] { unit: "m" },
radius: f32 { unit: "m", min: 0.0 },
},
Aabb {
min: [f32; 3] { unit: "m", doc: "<= max" },
max: [f32; 3] { unit: "m", doc: ">= min" },
},
}
}
crate::reflect! {
enum PhysicsSyncMode { None, Events, SelectedState, FullState }
}
crate::reflect! {
struct AutoSimulation {
#[skip] decision: Option<crate::runtime::AllocationDecision>,
}
}
crate::reflect! {
struct PlayerController {
walk_speed: f32 { unit: "m/s", min: 0.0 },
sprint_multiplier: f32 { unit: "factor", min: 1.0 },
jump_speed: f32 { unit: "m/s", min: 0.0 },
air_jumps: u32 { doc: "extra jumps in the air before landing; 1 is a double jump" },
gravity: f32 { unit: "m/s²", min: 0.0 },
look_sensitivity: f32 { unit: "rad/pixel", min: 0.0 },
mouse_look: bool {
doc: "false: clicks never capture the cursor; the mouse stays free",
},
collision_mask: u32 {
unit: "bitmask", doc: "layers the body stops against",
},
yaw: f32 { unit: "rad", doc: "0 looks toward -Z" },
pitch: f32 { unit: "rad", min: -1.55, max: 1.55 },
pitch_limits: [f32; 2] {
unit: "rad", doc: "lowest, highest pitch; within ±1.55",
},
yaw_limits: Option<[f32; 2]> {
unit: "rad", doc: "lowest, highest yaw for a seated or turret view; null turns freely",
},
camera_distance: f32 {
unit: "m", min: 0.0,
doc: "0 is first person; above 0 the camera orbits behind",
},
camera_height: f32 {
unit: "m", doc: "third-person orbit center above the body",
},
camera_offset: [f32; 3] {
unit: "m",
doc: "added to the camera position in the body's frame; [0.6, 0, 0] looks over the right shoulder",
},
max_slope: f32 {
unit: "rad", min: 0.0, max: 1.57,
doc: "steepest ground it walks up; steeper is a wall",
},
max_step_height: f32 {
unit: "m", min: 0.0, doc: "highest ledge it steps onto",
},
push_bodies: bool { doc: "false: dynamic bodies block it but never move" },
turn_speed: f32 {
unit: "rad/s", min: 0.0,
doc: "how fast non-camera children turn to the walk direction",
},
crouch_height: f32 {
unit: "m", min: 0.0,
doc: "body height while player.crouch is held; 0 turns crouching off",
},
crouch_multiplier: f32 {
unit: "factor", min: 0.0, doc: "speed factor while crouched",
},
swim_speed: f32 {
unit: "m/s", min: 0.0,
doc: "speed in a water body; 0 turns swimming off",
},
float_depth: f32 {
unit: "m", doc: "how far below the surface the body center floats",
},
#[skip] swimming: bool,
#[skip] crouched: bool,
#[skip] crouch_drop: f32,
#[skip] camera_drop: f32,
#[skip] vertical_speed: f32,
#[skip] grounded: bool,
#[skip] jump_requested: bool,
#[skip] air_jumps_used: u32,
#[skip] floor: Option<(bevy_ecs::entity::Entity, [f32; 3])>,
#[skip] floor_rotation: [f32; 4],
#[skip] wall: Option<bevy_ecs::entity::Entity>,
#[skip] velocity: [f32; 3],
#[skip] dash_velocity: [f32; 3],
#[skip] dash_left: f32,
}
}
crate::reflect! {
struct JointSpring {
target: f32 { unit: "m or rad" },
stiffness: f32 { unit: "N/m or N·m/rad", min: 0.0 },
damping: f32 { unit: "N·s/m or N·m·s/rad", min: 0.0 },
}
}
crate::reflect! {
struct JointMotor {
speed: f32 { unit: "m/s or rad/s" },
max_force: f32 { unit: "N or N·m", min: 0.0 },
}
}
crate::reflect! {
enum AxisMotion {
Locked,
Free,
Limited {
min: f32 { unit: "m or rad" },
max: f32 { unit: "m or rad" },
},
}
}
crate::reflect! {
struct JointAxis {
motion: AxisMotion,
spring: Option<JointSpring>,
motor: Option<JointMotor>,
}
}
crate::reflect! {
enum JointKind {
Fixed,
Hinge {
limit: Option<[f32; 2]> { unit: "rad", doc: "min, max" },
spring: Option<JointSpring>,
motor: Option<JointMotor>,
},
Slider {
limit: Option<[f32; 2]> { unit: "m", doc: "min, max" },
spring: Option<JointSpring>,
motor: Option<JointMotor>,
},
BallSocket,
ConeTwist {
swing: f32 { unit: "rad", min: 0.0 },
twist: [f32; 2] { unit: "rad", doc: "min, max about X" },
},
Distance {
min: f32 { unit: "m", min: 0.0 },
max: f32 { unit: "m", min: 0.0 },
},
Spring {
rest_length: f32 { unit: "m", min: 0.0 },
stiffness: f32 { unit: "N/m", min: 0.0 },
damping: f32 { unit: "N·s/m", min: 0.0 },
},
Generic {
linear: [JointAxis; 3] { doc: "X, Y, Z along the target frame" },
angular: [JointAxis; 3] { doc: "twist about X, swing about Y, Z" },
},
}
}
crate::reflect! {
struct Joint {
target: Entity { doc: "body this one hangs from; null is the world" },
kind: JointKind,
anchor: [f32; 3] { unit: "m", doc: "in this body's local space" },
frame: [f32; 3] {
unit: "rad", doc: "joint axes in this body's local space; X is the hinge, slider, and twist axis",
},
target_anchor: [f32; 3] {
unit: "m", doc: "in the target's local space, or world space",
},
target_frame: [f32; 3] { unit: "rad", doc: "in the target's local space" },
collide_connected: bool { doc: "false keeps the two bodies from colliding" },
break_force: f32 { unit: "N", min: 0.0, doc: "0 never breaks" },
break_torque: f32 { unit: "N·m", min: 0.0, doc: "0 never breaks" },
}
}
crate::reflect! {
struct Articulation {}
}
crate::reflect! {
enum Easing {
Linear, QuadIn, QuadOut, QuadInOut, CubicOut, SineInOut, BackOut,
BounceOut,
}
}
crate::reflect! {
enum TweenProperty { Position, Rotation, Scale }
}
crate::reflect! {
enum TweenRepeat { Once, Loop, PingPong }
}
crate::reflect! {
struct Tween {
property: TweenProperty { doc: "rotation is radians" },
from: [f32; 3] { unit: "property unit" },
to: [f32; 3] { unit: "property unit" },
duration: f32 { unit: "s", min: 0.0, doc: "0 jumps to `to`" },
delay: f32 { unit: "s", min: 0.0, doc: "holds `from` first" },
easing: Easing,
repeat: TweenRepeat,
#[skip] elapsed: f32,
}
}
crate::reflect! {
struct SlideSound {
clip: String { unit: "asset path", doc: "looped while the body slides or rolls" },
volume: f32 { unit: "linear gain", min: 0.0 },
full_volume_speed: f32 { unit: "m/s", min: 0.0, doc: "sliding this fast plays at full volume" },
min_speed: f32 { unit: "m/s", min: 0.0, doc: "slower is silent" },
bus: String { doc: "empty for the main output" },
#[skip] playing: Option<SoundId>,
#[skip] level: f32,
}
}
crate::reflect! {
struct ReverbZone {
bus: String { doc: "bus the reverb goes on; empty for every sound" },
room: f32 { unit: "0 to 1", min: 0.0, max: 1.0, doc: "0 small and dry, near 1 rings for seconds" },
damping: f32 { unit: "0 to 1", min: 0.0, max: 1.0, doc: "darkens the tail" },
mix: f32 { unit: "0 to 1", min: 0.0, max: 1.0, doc: "wet share" },
fade: f32 { unit: "s", min: 0.0, doc: "time the reverb takes to come in and go out" },
}
}
crate::reflect! {
struct CameraShake {
trauma: f32 { unit: "0 to 1", min: 0.0, doc: "shake strength is trauma squared" },
decay: f32 { unit: "1/s", min: 0.0, doc: "trauma lost per second" },
max_offset: [f32; 3] { unit: "m", doc: "along the camera's right, up and back axes" },
max_roll: f32 { unit: "rad", min: 0.0 },
frequency: f32 { unit: "Hz", min: 0.0 },
}
}
crate::reflect! {
struct SpawnGrid {
count: [u32; 3] { unit: "cells", doc: "along X, Y and Z, original included" },
spacing: [f32; 3] { unit: "m" },
}
}
crate::reflect! {
struct Flash {
color: [f32; 3] { unit: "linear RGB" },
duration: f32 { unit: "s", min: 0.0, doc: "fade back to no tint" },
#[skip] remaining: f32,
}
}
crate::reflect! {
struct Squash {
stiffness: f32 { unit: "1/s²", min: 0.0, doc: "higher wobbles faster" },
damping: f32 { unit: "1/s", min: 0.0, doc: "higher settles sooner" },
#[skip] amount: f32,
#[skip] velocity: f32,
#[skip] rest: Option<[f32; 3]>,
}
}
crate::reflect! {
struct SoundCue {
clip: String { unit: "asset path", doc: "relative to assets/, or sfx:coin 7 for a built-in sound" },
volume: f32 { unit: "linear gain", min: 0.0 },
on_collision: bool { doc: "CPU collider contacts only" },
caption: String { doc: "shown for 2 s each time it fires, like [glass breaks]; empty for none" },
full_volume_speed: f32 { unit: "m/s", min: 0.0, doc: "hits this fast play at full volume, slower ones quieter; 0 for always full" },
with_material: String { doc: "only touches of a collider with this physics_material name; empty for any" },
on_gpu_event: String { doc: "registered GPU physics event name that plays this cue for this body; empty for none" },
#[skip] triggered: bool,
#[skip] touching: bool,
#[skip] hit_speed: Option<f32>,
}
}
crate::reflect! {
struct BurstEmitter {
count: u32 { unit: "particles", doc: "each is one CPU entity" },
speed: f32 { unit: "m/s", min: 0.0 },
lifetime: f32 { unit: "s", min: 0.0 },
particle_scale: f32 {
unit: "factor", min: 0.0, doc: "of the emitter's scale",
},
gravity: f32 { unit: "m/s²" },
on_collision: bool { doc: "CPU collider contacts only" },
rate: f32 {
unit: "particles/s", min: 0.0,
doc: "above 0 emits every fixed step, no trigger needed",
},
area: [f32; 3] { unit: "m", doc: "half extents of the start box" },
stretch: f32 { unit: "factor", min: 0.0, doc: "particle height" },
#[skip] pending: f32,
#[skip] triggered: bool,
#[skip] touching: bool,
}
}
crate::reflect! {
enum EmitterShape { Point, Box, Sphere, Cone, Circle }
}
crate::reflect! {
enum ParticleSpace { World, Local }
}
crate::reflect! {
enum ParticleFacing { Billboard, Velocity }
}
crate::reflect! {
enum ParticleBlend { Alpha, Additive }
}
crate::reflect! {
enum ParticleSprite { Soft, Disc, Square }
}
crate::reflect! {
struct ParticleBurst {
time: f32 { unit: "s", min: 0.0, doc: "into each cycle" },
count: u32 { unit: "particles" },
}
}
crate::reflect! {
struct CurveKey {
t: f32 { unit: "life", min: 0.0, max: 1.0 },
value: f32 { unit: "factor", min: 0.0 },
}
}
crate::reflect! {
struct ColorKey {
t: f32 { unit: "life", min: 0.0, max: 1.0 },
color: [f32; 4] {
unit: "linear RGBA", min: 0.0, max: 1.0, color: true,
},
}
}
crate::reflect! {
struct ParticleEmitter {
autoplay: bool { doc: "off waits for play()" },
rate: f32 { unit: "particles/s", min: 0.0 },
bursts: Vec<ParticleBurst> { doc: "fired once per cycle" },
max_particles: u32 { unit: "particles", doc: "alive at once" },
prewarm: bool { doc: "start as if one cycle already played" },
duration: f32 { unit: "s", min: 0.0, doc: "one cycle" },
looping: bool { doc: "off stops emitting after one cycle" },
on_collision: bool { doc: "restart on contact; CPU colliders only" },
shape: EmitterShape,
shape_size: [f32; 3] {
unit: "m", min: 0.0,
doc: "box half extents; x is the radius of round shapes",
},
lifetime: [f32; 2] { unit: "s", min: 0.0, doc: "min, max" },
speed: [f32; 2] { unit: "m/s", doc: "min, max" },
size: [f32; 2] { unit: "m", min: 0.0, doc: "min, max" },
rotation: [f32; 2] { unit: "rad", doc: "min, max" },
spin: [f32; 2] { unit: "rad/s", doc: "min, max" },
direction: [f32; 3] { doc: "launch axis in the emitter's space" },
spread: f32 {
unit: "rad", min: 0.0, max: std::f64::consts::PI,
doc: "half angle around direction; 3.14 is every way",
},
gravity: f32 { unit: "m/s²", doc: "downward" },
drag: f32 { unit: "1/s", min: 0.0 },
wind: [f32; 3] { unit: "m/s²", doc: "constant world push" },
turbulence: f32 { unit: "m/s²", min: 0.0 },
turbulence_frequency: f32 { unit: "1/m", min: 0.0 },
size_over_life: Vec<CurveKey> { doc: "size factor keys by life" },
color_over_life: Vec<ColorKey> { doc: "color keys by life" },
start_colors: Vec<[f32; 4]> {
doc: "each particle picks one; tints its color",
},
emissive: f32 { unit: "factor", min: 0.0, doc: "above 1 blooms" },
fade_in: f32 { unit: "life", min: 0.0, max: 1.0 },
fade_out: f32 { unit: "life", min: 0.0, max: 1.0 },
space: ParticleSpace,
facing: ParticleFacing,
stretch: f32 {
unit: "s", min: 0.0, doc: "Velocity facing: length per m/s",
},
blend: ParticleBlend,
sprite: ParticleSprite,
#[skip] command: crate::runtime::ParticleCommand,
}
}
crate::reflect! {
enum AnimationProperty {
Position,
Rotation,
Scale,
Color,
Emissive,
Visible,
Orientation,
Field {
component: String { doc: "registered scene component name" },
path: String { doc: "JSON pointer to a number, e.g. /intensity" },
},
}
}
crate::reflect! {
enum Interpolation { Step, Linear, Smooth }
}
crate::reflect! {
struct Keyframe {
time: f32 { unit: "s", min: 0.0 },
value: Vec<f32> {
doc: "3 for transforms (rotation in rad), 4 for Color, 3 for Emissive, 1 otherwise",
},
}
}
crate::reflect! {
struct AnimationTrack {
target: String { doc: "empty for this entity, else child names: Arm/Hand" },
property: AnimationProperty,
interpolation: Interpolation,
keys: Vec<Keyframe> { doc: "sorted by time" },
}
}
crate::reflect! {
struct AnimationMarker {
time: f32 { unit: "s", min: 0.0 },
name: String { doc: "event name game code receives" },
}
}
crate::reflect! {
struct AnimationClip {
name: String,
duration: f32 { unit: "s", min: 0.0, doc: "0 uses the last key" },
repeat: TweenRepeat,
tracks: Vec<AnimationTrack>,
events: Vec<AnimationMarker>,
blend: Vec<BlendPoint> {
doc: "blend space: clips mixed by blend_parameter (and blend_parameter_y for 2D); empty for a plain clip",
},
blend_parameter: String { doc: "parameter that picks the blend position (x axis in 2D)" },
blend_parameter_y: String { doc: "y axis parameter; set for a 2D blend space" },
}
}
crate::reflect! {
struct BlendPoint {
clip: String,
at: f32 { doc: "position on the blend parameter axis" },
at_y: f32 { doc: "position on the y axis of a 2D blend space" },
}
}
crate::reflect! {
enum AnimationCompare { Above, Below, Equal }
}
crate::reflect! {
struct AnimationTransition {
from: String { doc: "clip name; empty matches any clip" },
to: String,
parameter: String { doc: "parameter to test; empty skips the test" },
compare: AnimationCompare,
value: f32,
at_end: bool { doc: "also wait until `from` has played once" },
fade: f32 { unit: "s", min: 0.0, doc: "crossfade length; 0 cuts" },
}
}
crate::reflect! {
struct HumanoidBone {
bone: String { doc: "standard name such as Hips, Spine, Head, LeftUpperArm, RightFoot" },
path: String { doc: "this rig's path to the bone" },
}
}
crate::reflect! {
enum RootMotion {
Off,
InPlace,
Transform,
Velocity,
}
}
crate::reflect! {
struct AnimationLayer {
clip: String,
weight: f32 { min: 0.0, max: 1.0, doc: "how much of the layer shows" },
weight_parameter: String { doc: "parameter read as the weight; empty uses weight" },
additive: bool { doc: "add the clip's motion from its first frame instead of replacing" },
mask: Vec<String> { doc: "target paths (with children) the layer writes; empty writes all" },
}
}
crate::reflect! {
struct Animation {
clips: Vec<AnimationClip>,
autoplay: String { doc: "clip played on start; empty plays nothing" },
speed: f32 { unit: "factor", min: 0.0 },
parameters: std::collections::BTreeMap<String, f32> {
doc: "named numbers game code sets for transitions",
},
transitions: Vec<AnimationTransition> {
doc: "state machine edges; the first match each tick wins",
},
layers: Vec<AnimationLayer> {
doc: "clips played on top of the state machine, in order",
},
root_motion: RootMotion {
doc: "Off moves the root bone as keyed; InPlace collects for game code; Transform moves this object; Velocity drives its GPU body",
},
root_bone: String { doc: "path of the bone whose Position track carries root motion; empty is this object" },
humanoid: Vec<HumanoidBone> {
doc: "humanoid bone names (Hips, Spine, LeftUpperArm...) of this rig's bone paths, for retargeting; empty matches by bone name",
},
#[skip] command: Option<crate::runtime::AnimationCommand>,
}
}
crate::reflect! {
enum IkKind {
LookAt,
TwoBone,
Foot,
Chain,
}
}
crate::reflect! {
struct RagdollBone {
path: String { doc: "bone path from the character" },
length: f32 { unit: "m", min: 0.0, doc: "capsule along the bone's local +Y, ends included" },
radius: f32 { unit: "m", min: 0.0 },
mass: f32 { unit: "kg", min: 0.0 },
joint: JointKind { doc: "joint to the nearest ancestor bone's body" },
frame: [f32; 3] { unit: "rad", doc: "joint axes in the bone's frame; the default turns X along the bone" },
}
}
crate::reflect! {
struct Rope {
target: Entity { doc: "body at the far end; null ties it to the world" },
anchor: [f32; 3] { unit: "m", doc: "rope end in this body's local space" },
target_anchor: [f32; 3] { unit: "m", doc: "rope end in the target's local space, or world space" },
length: f32 { unit: "m", min: 0.0, doc: "longest the rope stretches" },
segments: u32 { doc: "bead count, 1 to 256; more bend smoother and cost more" },
radius: f32 { unit: "m", min: 0.0, doc: "bead radius; keep it under half of length / (segments + 1)" },
mass: f32 { unit: "kg", min: 0.0, doc: "per bead" },
}
}
crate::reflect! {
struct Ragdoll {
bones: Vec<RagdollBone>,
hit_speed: f32 { unit: "m/s", min: 0.0, doc: "a body closing on the character this fast makes it go limp; 0 only on command" },
recover_after: f32 { unit: "s", min: 0.0, doc: "seconds limp before getting up; 0 waits for game code" },
blend_time: f32 { unit: "s", min: 0.0, doc: "seconds to blend back to the animation, or for active muscles to regain strength" },
muscle: f32 { unit: "Hz", min: 0.0, doc: "above 0 keeps the bodies on and turns them toward the animation; 5 loose, 15 stiff" },
#[skip] command: Option<bool>,
}
}
crate::reflect! {
struct Ik {
kind: IkKind { doc: "LookAt turns this object; TwoBone bends its parent and grandparent" },
target: Entity { doc: "object to reach or look at; null turns the solve off" },
pole: Entity { doc: "TwoBone: the middle joint bends toward it; null keeps the bend plane" },
weight: f32 { min: 0.0, max: 1.0, doc: "0 keeps the animated pose, 1 solves fully" },
forward: [f32; 3] { doc: "LookAt: local axis that points at the target" },
reach: f32 { unit: "m", min: 0.0, doc: "Foot: ground search above and below the character's floor" },
joints: u32 { doc: "Chain: how many joints above this object bend" },
}
}
crate::reflect! {
struct Morph {
weights: Vec<f32> { doc: "one weight per blend shape of the mesh, usually 0 to 1" },
}
}
crate::reflect! {
struct Skin {
joints: Vec<String> { doc: "joint paths from this object; `..` is the parent" },
inverse_bind: Vec<[[f32; 4]; 4]> { doc: "column-major, one per joint" },
}
}
crate::reflect! {
struct FluidBlock {
spacing: f32 { unit: "m", min: 0.02, doc: "rest spacing of particles" },
count_x: u32 { unit: "particles" },
count_y: u32 { unit: "particles" },
count_z: u32 { unit: "particles" },
container_half_extents: [f32; 3] {
unit: "m", min: 0.1, doc: "the box is centered on the entity",
},
iterations: u32 { unit: "passes", min: 1.0, max: 16.0 },
viscosity: f32 { unit: "factor", min: 0.0, max: 1.0 },
visible: bool { doc: "draw the fluid as a water surface" },
show_particles: bool { doc: "also draw one sphere per particle" },
}
}
crate::reflect! {
struct SoftBlock {
spacing: f32 { unit: "m", min: 0.01, doc: "side of one cube of six tetrahedra" },
count_x: u32 { unit: "cubes" },
count_y: u32 { unit: "cubes" },
count_z: u32 { unit: "cubes" },
density: f32 { unit: "kg/m³", min: 1.0 },
softness: f32 { unit: "compliance", min: 0.0, doc: "edge compliance; 0 is rigid, 1e-3 a wobbly jelly" },
squash: f32 { unit: "compliance", min: 0.0, doc: "volume compliance; 0 keeps the volume" },
damping: f32 { unit: "1/s", min: 0.0, doc: "fraction of velocity lost per second" },
tear_strain: f32 { unit: "factor", min: 0.0, doc: "edges stretched past rest times 1 + this tear; 0 never" },
substeps: u32 { unit: "substeps", min: 1.0, max: 64.0 },
visible: bool { doc: "draw the outer faces" },
}
}
crate::reflect! {
struct ClothSheet {
spacing: f32 { unit: "m", min: 0.01, doc: "side of one square of two triangles" },
count_x: u32 { unit: "squares" },
count_y: u32 { unit: "squares" },
density: f32 { unit: "kg/m²", min: 0.001 },
stretch: f32 { unit: "compliance", min: 0.0, doc: "edge compliance; 0 does not stretch" },
bend: f32 { unit: "compliance", min: 0.0, doc: "bend compliance; larger folds more easily" },
damping: f32 { unit: "1/s", min: 0.0, doc: "fraction of velocity lost per second" },
wind: [f32; 3] { unit: "m/s", doc: "air velocity blowing on the sheet" },
drag: f32 { unit: "factor", min: 0.0, doc: "how hard moving air pushes the sheet" },
thickness: f32 { unit: "m", min: 0.0, doc: "half the closest two layers get" },
self_collision: bool { doc: "keep folds from passing through each other" },
tear_strain: f32 { unit: "factor", min: 0.0, doc: "edges stretched past rest times 1 + this tear; 0 never" },
substeps: u32 { unit: "substeps", min: 1.0, max: 64.0 },
pin_top: bool { doc: "hold the top edge on the holder, or in place without one" },
holder: Entity { doc: "body the top edge hangs on; null pins it in place" },
visible: bool { doc: "draw both sides of the sheet" },
}
}
crate::reflect! {
struct WaterBody {
size: [f32; 2] { unit: "m", min: 0.5, doc: "x and z size, centered on the entity" },
resolution: u32 { unit: "cells", min: 2.0, max: 256.0, doc: "grid cells along the longer side" },
wave_height: f32 { unit: "m", min: 0.0, doc: "crest height above the rest level" },
wave_length: f32 { unit: "m", min: 0.1, doc: "distance between crests" },
wave_speed: f32 { unit: "m/s", min: 0.0 },
flow_direction: f32 { unit: "deg", doc: "direction of waves and current around +Y; 0 is +X" },
flow_speed: f32 { unit: "m/s", min: 0.0, doc: "current that carries floating bodies; 0 is a lake" },
color: [f32; 4] { doc: "RGBA of the surface" },
flat_shading: bool {
doc: "Light each wave triangle with its own face normal for a faceted sea.",
},
}
}
crate::reflect! {
struct GravityVolume {
gravity: [f32; 3] { unit: "m/s²", doc: "acceleration inside the volume; [0, 0, 0] is zero-g" },
toward_center: f32 {
unit: "m/s²", min: 0.0,
doc: "above 0, pulls toward the volume's centre instead, for a planet",
},
priority: i32 { doc: "the highest wins where volumes overlap" },
}
}
crate::reflect! {
struct Heightfield {
heights: Vec<Vec<f32>> { unit: "m", doc: "heights[row][column]; rows run along +Z, columns along +X, centred on the object" },
spacing: f32 { unit: "m", min: 0.001, doc: "distance between neighbouring samples" },
cells: Vec<Vec<u8>> { doc: "cells[row][column]: index into surfaces; missing cells use the collider's own" },
surfaces: Vec<GroundSurface> { doc: "ground patches with their own friction, restitution and sound material" },
}
}
crate::reflect! {
struct MeshSurfaces {
triangles: Vec<u8> { doc: "triangles[i]: index into surfaces for the mesh's triangle i; missing entries use the collider's own" },
surfaces: Vec<GroundSurface> { doc: "patches with their own friction, restitution and sound material" },
}
}
crate::reflect! {
struct Polygon2d {
points: Vec<[f32; 2]> { unit: "m", doc: "outline in the object's XY plane; counterclockwise, convex for a Polygon collider" },
depth: f32 { unit: "m", min: 0.001, doc: "thickness along Z, centred on the object" },
closed: bool { doc: "the chain joins its last point back to the first" },
}
}
crate::reflect! {
struct GroundSurface {
name: String { doc: "material name a sound_cue with_material matches" },
friction: f32 { min: 0.0 },
restitution: f32 { min: 0.0, max: 1.0 },
}
}
crate::reflect! {
enum FieldKind { Directional, Radial, Vortex, Wind, Custom }
}
crate::reflect! {
struct ForceField {
kind: FieldKind { doc: "Directional and Wind push along direction, Radial out from the centre, Vortex around direction" },
strength: f32 { unit: "m/s²", doc: "the same for light and heavy bodies; negative Radial pulls in" },
direction: [f32; 3] { doc: "world direction, or the vortex axis" },
falloff_distance: f32 { unit: "m", min: 0.0, doc: "above 0, the push fades to nothing this far from the centre" },
turbulence: f32 { min: 0.0, doc: "Wind gusts as a share of strength; 0 is steady" },
function: String { doc: "Custom: the name a game registered with App::add_force_field_function" },
}
}
crate::reflect! {
struct AxisLock {
linear: [bool; 3] { doc: "no movement along world x, y, z; [false, false, true] keeps a 2D body in the XY plane" },
angular: [bool; 3] { doc: "no turning around world x, y, z; [true, true, false] lets a 2D body turn only in its plane" },
}
}
crate::reflect! {
enum CombineMode { Default, Average, Min, Multiply, Max }
}
crate::reflect! {
struct PhysicsMaterial {
name: String { doc: "surface name sound cues match with with_material, like metal or ice" },
friction_combine: CombineMode { doc: "Default is the geometric mean; where sides differ, the later mode in the list wins" },
restitution_combine: CombineMode { doc: "Default is the larger; where sides differ, the later mode in the list wins" },
}
}
crate::reflect! {
struct Vehicle {
wheels: Vec<Wheel> { doc: "suspension rays and tires" },
engine_torque: f32 { unit: "N·m", min: 0.0, doc: "flat up to max_rpm" },
max_rpm: f32 { unit: "rpm", min: 1.0, doc: "no torque above it; the gearbox shifts up near it" },
gear_ratios: Vec<f32> { doc: "forward gears from first; reverse uses the first" },
final_drive: f32 { min: 0.0, doc: "multiplies every gear" },
brake_torque: f32 { unit: "N·m", min: 0.0, doc: "per wheel at full brake" },
max_steer: f32 { unit: "rad", min: 0.0, doc: "steered wheels' angle at full lock" },
player_input: bool { doc: "forward/back drive, left/right steer, jump brakes" },
throttle: f32 { min: -1.0, max: 1.0, doc: "below 0 drives backward" },
brake: f32 { min: 0.0, max: 1.0, doc: "0 to 1" },
steer: f32 { min: -1.0, max: 1.0, doc: "above 0 turns right" },
gear: usize { doc: "state: index into gear_ratios" },
rpm: f32 { unit: "rpm", doc: "state: engine speed" },
}
}
crate::reflect! {
struct Wheel {
position: [f32; 3] { unit: "m", doc: "suspension mount in body space; forward is -Z" },
radius: f32 { unit: "m", min: 0.01, doc: "tire radius" },
suspension: f32 { unit: "m", min: 0.0, doc: "spring travel below the mount" },
stiffness: f32 { unit: "N/m", min: 0.0, doc: "spring" },
damping: f32 { unit: "N·s/m", min: 0.0, doc: "spring damper" },
steer: bool { doc: "turns with steer" },
drive: bool { doc: "gets engine torque" },
grip: f32 { min: 0.0, doc: "friction at the peak of the tire curve" },
spin: f32 { unit: "rad/s", doc: "state: positive rolls forward" },
compression: f32 { unit: "m", doc: "state: spring pressed in" },
grounded: bool { doc: "state: touched ground this step" },
}
}
crate::reflect! {
enum HudAnchor {
TopLeft, Top, TopRight, Center, BottomLeft, Bottom, BottomRight,
}
}
crate::reflect! {
struct HudElement {
text: String { doc: "{name} shows the counter with that name" },
anchor: HudAnchor,
offset: [f32; 2] {
unit: "logical pixels",
doc: "[x, y] inward from the anchor: [24, 24] on BottomRight is 24 px left of the right edge and 24 px above the bottom; on Top, Bottom and Center, +x is right",
},
font_size: f32 { unit: "logical pixels", min: 1.0 },
color: [f32; 4] { unit: "sRGBA", min: 0.0, max: 1.0, color: true },
button: bool { doc: "a click sends HudButtonPressed" },
requires: Option<String> {
unit: "counter name",
doc: "null, or shown only once that counter is complete",
},
camera: Option<String> {
unit: "camera name",
doc: "null anchors to the window; a name anchors to that camera's viewport and shows only while it is active",
},
follow: Option<String> {
unit: "object name",
doc: "null, or the element sits on that object's place on screen, aligned by anchor, with offset in pixels (+y down); hidden while the object is behind the camera",
},
follow_offset: [f32; 3] { unit: "m", doc: "world-space offset from the followed object, such as [0, 2, 0] above a head" },
}
}
crate::reflect! {
struct InputAction {
action: String { doc: "name game code and scenarios use" },
inputs: Vec<String> {
doc: "winit key names (KeyF, Space, ArrowUp), MouseLeft, MouseRight, MouseMiddle, or gamepad inputs (PadSouth, PadStart, PadDpadUp, PadLeftStickUp)",
},
}
}
crate::reflect! {
struct Counter {
name: String { doc: "the lowest-ID counter wins when names repeat" },
value: i32,
target: Option<i32> {
doc: "null, or the value that completes the counter",
},
}
}
crate::reflect! {
struct Health {
value: i32 { doc: "hit points left" },
max: i32 { doc: "healing stops here" },
team: String { doc: "objects on the same non-empty team are allies" },
}
}
crate::reflect! {
struct LootTable {
entries: Vec<LootEntry> { doc: "one is picked per roll" },
}
}
crate::reflect! {
struct Dialogue {
lines: Vec<DialogueLine> { doc: "the first line starts it" },
current: String { doc: "id of the line shown; empty when not running" },
}
}
crate::reflect! {
struct DialogueLine {
id: String { doc: "what next and choices point at" },
speaker: String { doc: "translation key or name" },
text: String { doc: "translation key or text" },
next: String { doc: "line after this one when it has no choices; empty ends" },
choices: Vec<DialogueChoice> { doc: "player answers" },
}
}
crate::reflect! {
struct DialogueChoice {
text: String { doc: "translation key or text" },
next: String { doc: "line it leads to; empty ends" },
counter: String { doc: "counter it adds to; empty for none" },
add: i32 { doc: "amount added to counter" },
}
}
crate::reflect! {
struct LootEntry {
item: String { doc: "what the roll gives" },
weight: u32 { doc: "chance over the table's total; 0 never drops" },
}
}
crate::reflect! {
struct ObjectState {
state: String { doc: "game code changes it with scene.set_state" },
since_tick: u64 { doc: "the fixed tick the state was entered on" },
transitions: Vec<StateTransition> {
doc: "checked each fixed tick; the first that applies changes the state",
},
actions: Vec<StateAction> {
doc: "counter changes when a state is entered or left",
},
}
}
crate::reflect! {
struct StateAction {
state: String,
exit: bool { doc: "run on leaving the state instead of entering it" },
counter: String { unit: "counter name" },
add: i32 { doc: "added to counter" },
}
}
crate::reflect! {
struct StateTransition {
from: String { doc: "empty matches any state" },
to: String,
after_seconds: f32 { unit: "s", min: 0.0, doc: "time in the current state" },
counter: String { unit: "counter name", doc: "empty means no counter guard" },
at_least: i32 { doc: "the counter's value must reach this" },
held: String { unit: "input action", doc: "must be held; empty for none" },
touching: String { unit: "object name", doc: "must be touched; empty for none" },
then_counter: String { unit: "counter name", doc: "taking the transition adds to it; empty for none" },
then_add: i32 { doc: "added to then_counter" },
}
}
crate::reflect! {
struct Pickup {
counter: String { unit: "counter name" },
value: i32 { doc: "added on collect" },
requires: Option<String> {
unit: "counter name",
doc: "null, or collectable only once that counter is complete",
},
collected: bool { doc: "set by the engine; scenarios can check it" },
}
}
crate::reflect! {
struct Connection {
handler: String {
doc: "name the game registered with App::add_signal_handler",
},
target: Entity { doc: "object passed to the handler as the receiver" },
}
}
crate::reflect! {
struct Connections {
list: Vec<Connection> {
doc: "signal handlers run, in order, when this object emits",
},
}
}
crate::reflect! {
struct SceneInstance {
source: PathBuf {
unit: "scene file",
doc: "placed under this object on load, relative to this scene; \
empty places nothing",
},
}
}
crate::reflect! {
struct SceneBackground {
color: [f32; 4] {
unit: "linear RGBA", min: 0.0, max: 1.0, color: true,
},
}
}
crate::reflect! {
struct EnvironmentMap {
texture: PathBuf {
unit: "asset path",
doc: "equirectangular (2:1) image that surfaces reflect",
},
intensity: f32 { unit: "factor", min: 0.0 },
#[skip] handle: Option<crate::assets::Handle<crate::assets::TextureAsset>>,
}
}
crate::reflect! {
struct ColorLut {
texture: PathBuf {
unit: "asset path",
doc: "strip of N squares of N x N pixels; blue picks the square",
},
intensity: f32 { unit: "factor", min: 0.0, max: 1.0 },
#[skip] handle: Option<crate::assets::Handle<crate::assets::TextureAsset>>,
}
}
crate::reflect! {
struct LightCookie {
texture: PathBuf {
unit: "asset path",
doc: "image the spot light on this object projects",
},
#[skip] handle: Option<crate::assets::Handle<crate::assets::TextureAsset>>,
}
}
crate::reflect! {
struct ReflectionProbe {
extents: [f32; 3] {
unit: "m", min: 0.0,
doc: "half size of the box along each world axis",
},
intensity: f32 { unit: "factor", min: 0.0 },
}
}
crate::reflect! {
struct Fog {
color: [f32; 3] {
unit: "linear RGB", min: 0.0, max: 1.0, color: true,
doc: "color that distant objects fade into",
},
density: f32 {
unit: "1/m", min: 0.0, max: 1.0,
doc: "extinction per metre at `height`; 0.01 hides things \
about 300 m away",
},
height: f32 {
unit: "m",
doc: "world height where the fog has its full density",
},
height_falloff: f32 {
unit: "1/m", min: 0.0, max: 2.0,
doc: "how fast the fog thins above `height`; 0 is uniform",
},
sun_scatter: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "brightens fog toward the sun",
},
sky_affect: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "how much the background fades into the fog",
},
}
}
crate::reflect! {
struct CameraScreen {
camera: String { doc: "name of the camera whose image this mesh shows" },
size: [u32; 2] { unit: "px", doc: "feed width and height" },
update_every: u32 {
unit: "frames", min: 1.0, max: 60.0,
doc: "draws the feed every this many frames",
},
enabled: bool { doc: "off keeps the last image without drawing" },
grading: Option<ColorGrading> {
doc: "the feed's own color grading; none uses the scene's",
},
exposure: f32 {
unit: "factor", min: 0.0, max: 64.0,
doc: "multiplies the scene's exposure for this feed; 1 matches the player's view",
},
}
}
crate::reflect! {
struct ColorGrading {
contrast: f32 {
unit: "factor", min: 0.0, max: 3.0,
doc: "contrast around mid grey; 1 leaves the image as is",
},
saturation: f32 {
unit: "factor", min: 0.0, max: 3.0,
doc: "0 is grey, 1 unchanged, above 1 stronger colors",
},
shadows: [f32; 3] {
unit: "linear rgb",
doc: "tint multiplied into dark tones; [1, 1, 1] is none",
},
highlights: [f32; 3] {
unit: "linear rgb",
doc: "tint multiplied into bright tones; [1, 1, 1] is none",
},
vignette: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "how much the corners darken; 0 is none",
},
grain: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "film grain, changing every fixed tick",
},
chromatic_aberration: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "red and blue split toward the edges",
},
scanlines: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "darkens every other pixel row",
},
color_bleed: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "smears color sideways like VHS tape",
},
noise_band: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "a band of static rolling down the image",
},
distortion: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "tube bulge and row wobble over time",
},
}
}
crate::reflect! {
struct PostVolume {
extents: [f32; 3] {
unit: "m", min: 0.0,
doc: "half size of the box around the object, world axes",
},
blend: f32 {
unit: "m", min: 0.0,
doc: "fade-out distance outside the box; 0 switches at the wall",
},
priority: i32 {
doc: "higher volumes blend over lower ones",
},
}
}
crate::reflect! {
struct AutoExposure {
key: f32 {
unit: "linear", min: 0.001, max: 1.0,
doc: "average brightness the image is brought to; 0.18 is mid grey",
},
min_exposure: f32 {
unit: "factor", min: 0.001,
doc: "lowest exposure, for very bright scenes",
},
max_exposure: f32 {
unit: "factor", min: 0.001,
doc: "highest exposure, for very dark scenes",
},
speed: f32 {
unit: "1/s", min: 0.0,
doc: "how fast exposure follows a change in brightness",
},
}
}
crate::reflect! {
struct DepthOfField {
focus_distance: f32 {
unit: "m", min: 0.01,
doc: "distance from the camera that stays sharp",
},
blur: f32 {
unit: "fraction", min: 0.0, max: 0.05,
doc: "largest blur radius as a fraction of the screen height",
},
}
}
crate::reflect! {
struct MotionBlur {
intensity: f32 {
unit: "fraction", min: 0.0, max: 1.0,
doc: "fraction of the last frame's camera motion the smear covers",
},
}
}
crate::reflect! {
struct Bloom {
intensity: f32 {
unit: "factor", min: 0.0, max: 4.0,
doc: "share of the light above `threshold` added back as glow",
},
threshold: f32 {
unit: "linear", min: 0.0, max: 16.0,
doc: "brightness where the glow starts, with a soft knee",
},
spread: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "0 keeps the glow tight; 1 spreads it widely",
},
}
}
crate::reflect! {
struct AmbientOcclusion {
radius: f32 {
unit: "m", min: 0.05, max: 10.0,
doc: "world distance searched for occluders",
},
intensity: f32 {
unit: "exponent", min: 0.0, max: 8.0,
doc: "above 1 darkens creases more",
},
}
}
crate::reflect! {
struct TileKind {
color: [f32; 4] {
unit: "linear RGBA", min: 0.0, max: 1.0, color: true,
doc: "multiplies the texture",
},
texture: Option<PathBuf> {
unit: "asset path",
doc: "null or an image; alpha below 0.5 is cut out",
},
solid: bool { doc: "blocks CPU colliders" },
}
}
crate::reflect! {
struct TileMap {
tile_size: f32 { unit: "m", min: 0.001 },
rows: Vec<String> {
doc: "one string per row, top first; characters without a kind are empty",
},
tiles: std::collections::BTreeMap<String, TileKind> {
doc: "maps a one-character string to its kind",
},
}
}
crate::reflect! {
struct PlatformerController {
run_speed: f32 { unit: "m/s", min: 0.0 },
jump_speed: f32 { unit: "m/s", min: 0.0 },
gravity: f32 { unit: "m/s²", min: 0.0 },
collision_mask: u32 {
unit: "bitmask", doc: "layers the body stops against",
},
air_jumps: u32 { doc: "extra jumps in the air before landing; 1 is a double jump" },
#[skip] air_jumps_used: u32,
#[skip] vertical_speed: f32,
#[skip] grounded: bool,
#[skip] jump_buffer: f32,
#[skip] air_time: f32,
#[skip] floor: Option<(bevy_ecs::entity::Entity, [f32; 3])>,
#[skip] dash_velocity: [f32; 3],
#[skip] dash_left: f32,
}
}
crate::reflect! {
enum QualityProfile { Auto, Eco, Balanced, High }
}
crate::reflect! {
enum CullingMode { Auto, Disabled, Frustum, FrustumAndOcclusion }
}
crate::reflect! {
enum Antialiasing { Auto, Off, Msaa2, Msaa4, Fxaa, Taa }
}
crate::reflect! {
enum ShadowQuality { Auto, Low, Medium, High }
}
crate::reflect! {
struct RenderSettings {
quality: QualityProfile,
vsync: bool,
limit_fps: bool,
max_fps: u32 { unit: "frames/s", min: 1.0 },
render_scale: f32 {
unit: "factor", min: 0.25, max: 2.0,
doc: "Fraction of the window size the 3D scene renders at, stretched over the window. Below 1 is faster and blurrier; UI stays sharp.",
},
pixelated: bool {
doc: "Stretch a scaled frame with nearest-neighbour filtering: square pixels instead of blur.",
},
upscale_sharpness: f32 {
unit: "factor", min: 0.0, max: 1.0,
doc: "Above 0, a render scale below 1 is stretched with an edge-preserving filter and contrast-adaptive sharpening of this strength (FSR 1 style) instead of blur.",
},
background_color: [f32; 4] {
unit: "linear RGBA", min: 0.0, max: 1.0, color: true,
},
culling: CullingMode,
antialiasing: Antialiasing,
shadows: ShadowQuality,
hard_shadows: bool {
doc: "One shadow-map tap per pixel: crisp shadow edges instead of 3x3 filtered ones.",
},
reflections: bool,
}
}
crate::reflect! {
struct PhysicsSettings {
gravity: [f32; 3] { unit: "m/s²" },
enabled: bool,
kill_y: Option<f32> { unit: "m", doc: "Loose dynamic CPU bodies below this height are despawned and send FellOut." },
substeps: u32 { doc: "CPU solver substeps per fixed step; more hold joint chains and mass ratios tighter at that many times the cost." },
gpu_locks: AxisLock { doc: "axis locks every GPU body shares; PLANE_XY keeps a 2D game's GPU bodies in its plane" },
}
}
crate::reflect! {
struct RandomSeed(u64)
}
crate::reflect! {
enum DeterminismMode { Off, Local, CrossPlatform }
}
crate::reflect! {
enum MaterialModel { Pbr, Unlit }
}
crate::reflect! {
enum AlphaMode {
Opaque,
Mask { cutoff: f32 { min: 0.0, max: 1.0 } },
Blend,
}
}
crate::reflect! {
struct MaterialAsset {
name: String,
model: MaterialModel,
alpha_mode: AlphaMode,
base_color: [f32; 4] {
unit: "linear RGBA", min: 0.0, max: 1.0, color: true,
},
emissive: [f32; 3] { unit: "linear RGB", min: 0.0, color: true },
metallic: f32 { min: 0.0, max: 1.0 },
roughness: f32 { min: 0.0, max: 1.0 },
transmission: f32 { min: 0.0, max: 1.0 },
ior: f32 { min: 1.0, max: 3.0 },
thickness: f32 { unit: "m", min: 0.0 },
uv_scale: [f32; 2],
uv_offset: [f32; 2],
flat_shading: bool {
doc: "Light each triangle with its own face normal for a faceted, low-poly look.",
},
base_color_texture: Option<crate::assets::Handle<crate::assets::TextureAsset>>,
normal_texture: Option<crate::assets::Handle<crate::assets::TextureAsset>>,
metallic_roughness_texture: Option<crate::assets::Handle<crate::assets::TextureAsset>>,
occlusion_texture: Option<crate::assets::Handle<crate::assets::TextureAsset>>,
emissive_texture: Option<crate::assets::Handle<crate::assets::TextureAsset>>,
}
}
pub(super) fn register(registry: &mut TypeRegistry) {
registry.register_resource::<RenderSettings>("rusting.render_settings");
registry.register_resource::<PhysicsSettings>("rusting.physics_settings");
registry.register_resource::<RandomSeed>("rusting.random_seed");
registry.register_resource::<DeterminismMode>("rusting.determinism");
registry.register_asset::<MaterialAsset>("rusting.material");
}