Files
Verbatim/tests/physics_water.rs
2026-06-21 22:27:20 +03:00

101 lines
2.4 KiB
Rust

use verbatim::ai::AiAction;
use verbatim::ai::GameSession;
fn setup_empty() -> GameSession {
let mut s = GameSession::new_seeded(42);
s.init_empty();
s.clear_area(95, 95, 40, 40);
s
}
#[test]
fn water_flows_down() {
let mut s = setup_empty();
s.perform_action(&AiAction::FillRect {
x: 95,
y: 115,
w: 40,
h: 3,
material: "stone".into(),
});
s.perform_action(&AiAction::SetCell {
x: 110,
y: 105,
material: "water".into(),
});
s.perform_action(&AiAction::SetCell {
x: 110,
y: 106,
material: "water".into(),
});
s.perform_action(&AiAction::SetCell {
x: 110,
y: 107,
material: "water".into(),
});
s.step(20);
let water_near_bottom = s.count_material_in_region(105, 112, 10, 4, "water");
assert!(
water_near_bottom > 0,
"water should have flowed down to near the stone floor, found {} water cells near bottom",
water_near_bottom
);
}
#[test]
fn water_spreads_sideways() {
let mut s = setup_empty();
s.perform_action(&AiAction::FillRect {
x: 95,
y: 115,
w: 50,
h: 3,
material: "stone".into(),
});
s.perform_action(&AiAction::FillRect {
x: 110,
y: 111,
w: 1,
h: 4,
material: "water".into(),
});
s.step(50);
let left_count = s.count_material_in_region(100, 110, 10, 5, "water");
let right_count = s.count_material_in_region(111, 110, 10, 5, "water");
assert!(
left_count > 0 || right_count > 0,
"water should spread sideways: left={} right={}",
left_count,
right_count
);
}
#[test]
fn water_does_not_pass_through_stone_wall() {
let mut s = setup_empty();
s.perform_action(&AiAction::FillRect {
x: 95,
y: 115,
w: 50,
h: 3,
material: "stone".into(),
});
s.perform_action(&AiAction::FillRect {
x: 115,
y: 110,
w: 1,
h: 5,
material: "stone".into(),
});
s.perform_action(&AiAction::FillRect {
x: 100,
y: 110,
w: 15,
h: 5,
material: "water".into(),
});
s.step(30);
let right_water = s.count_material_in_region(116, 108, 10, 10, "water");
assert_eq!(right_water, 0, "water should not pass through stone wall");
}