4ddba62d4b
Squashed from work; the fine-grained history is under tag archive/work-2026-08-29: - mp* wave: mpwm window manager + the mp app family, WM API, theme bridge, PDF engine fix - mpwm polish wave: terminal key focus, focus-history close order, pop-back-to-origin, occupied-workspace cycling, demo - work: land the sources the last commits reference - route: the assistant icon the committed UI references - fast_inflate: the benches name their dev-deps - gif/weezl: drop the vendored benches nobody can run - weezl: the decode tests generate their own LZW fixture
86 lines
2.5 KiB
Rust
86 lines
2.5 KiB
Rust
//! Ceiling contract for the canonical mover sweep.
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//!
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//! FPS, third-person and scripted walkers all end here. A head hit must be a
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//! clamp, not a bounce or a sticky grounded state.
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use makepad_game_sim::{step_world, BodyKind, Entity, GameWorld};
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use makepad_math::{vec3f, Vec3f};
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fn body(id: u64, kind: BodyKind, pos: Vec3f, half: Vec3f) -> Entity {
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Entity {
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id,
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kind,
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pos,
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half,
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collide: true,
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gravity_scale: 1.0,
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density: 1.0,
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friction: 0.6,
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scale: vec3f(1.0, 1.0, 1.0),
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scale_target: vec3f(1.0, 1.0, 1.0),
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speed_mult: 1.0,
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..Default::default()
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}
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}
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#[test]
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fn a_low_ceiling_zeroes_upward_velocity_without_wedging_the_mover() {
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let mut world = GameWorld::new();
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world.gravity = 9.81;
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// Floor top y=0, ceiling underside y=1.0. The 0.8 m body has 0.2 m
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// standing headroom: enough to jump into the roof, not enough to pass it.
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world.push_entity(body(
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1,
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BodyKind::Static,
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vec3f(0.0, -0.5, 0.0),
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vec3f(4.0, 0.5, 4.0),
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));
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world.push_entity(body(
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2,
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BodyKind::Static,
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vec3f(0.0, 1.1, 0.0),
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vec3f(4.0, 0.1, 4.0),
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));
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world.push_entity(body(
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3,
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BodyKind::Mover,
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vec3f(0.0, 0.4, 0.0),
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vec3f(0.25, 0.4, 0.25),
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));
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for _ in 0..4 {
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step_world(&mut world);
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}
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assert!(world.entity(3).unwrap().on_floor);
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world.entity_mut(3).unwrap().vel.y = 6.0;
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let mut hit_head = false;
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let mut landed = false;
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for _ in 0..180 {
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let before = world.entity(3).unwrap().vel.y;
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step_world(&mut world);
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let mover = world.entity(3).unwrap();
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assert!(
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mover.pos.y + mover.half.y <= 1.0 + 1.0e-4,
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"mover head crossed the ceiling: {:?}",
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mover.pos
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);
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if before > 0.0 && mover.vel.y == 0.0 && !mover.on_floor {
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hit_head = true;
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}
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if hit_head && mover.on_floor {
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landed = true;
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break;
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}
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}
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let mover = world.entity(3).unwrap();
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assert!(hit_head, "the upward sweep never reported a head stop");
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assert!(landed, "the head stop left the mover wedged under the roof");
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assert!(
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(mover.pos.y - 0.4).abs() < 0.01,
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"landed at y {} instead of the floor centre 0.4",
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mover.pos.y
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);
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assert_eq!((mover.pos.x, mover.pos.z), (0.0, 0.0), "ceiling contact must not kick sideways");
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}
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