122 lines
2.6 KiB
Rust
122 lines
2.6 KiB
Rust
use verbatim::ai::AiAction;
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use verbatim::ai::GameSession;
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fn setup_empty() -> GameSession {
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let mut s = GameSession::new_seeded(42);
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s.init_empty();
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s.clear_area(95, 95, 30, 40);
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s
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}
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#[test]
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fn sand_falls_down() {
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let mut s = setup_empty();
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s.perform_action(&AiAction::FillRect {
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x: 100,
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y: 115,
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w: 10,
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h: 1,
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material: "stone".into(),
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});
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s.perform_action(&AiAction::SetCell {
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x: 105,
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y: 105,
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material: "sand".into(),
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});
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s.step(10);
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assert_eq!(
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s.get_cell(105, 105).material,
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"empty",
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"sand should have fallen from y=105"
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);
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assert_eq!(
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s.get_cell(105, 114).material,
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"sand",
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"sand should be resting on stone at y=114"
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);
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}
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#[test]
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fn sand_displaces_water() {
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let mut s = setup_empty();
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s.perform_action(&AiAction::FillRect {
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x: 100,
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y: 115,
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w: 10,
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h: 1,
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material: "stone".into(),
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});
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s.perform_action(&AiAction::FillRect {
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x: 100,
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y: 110,
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w: 10,
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h: 5,
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material: "water".into(),
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});
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s.perform_action(&AiAction::SetCell {
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x: 105,
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y: 105,
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material: "sand".into(),
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});
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s.step(20);
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let sand_at_bottom = s.get_cell(105, 114).material == "sand";
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assert!(sand_at_bottom, "sand should sink to bottom through water");
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}
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#[test]
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fn sand_piles_on_stone() {
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let mut s = setup_empty();
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s.perform_action(&AiAction::FillRect {
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x: 100,
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y: 115,
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w: 10,
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h: 1,
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material: "stone".into(),
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});
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s.perform_action(&AiAction::SetCell {
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x: 105,
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y: 105,
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material: "sand".into(),
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});
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s.perform_action(&AiAction::SetCell {
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x: 105,
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y: 104,
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material: "sand".into(),
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});
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s.step(15);
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let count = s.count_material_in_region(104, 112, 3, 4, "sand");
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assert!(
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count >= 2,
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"both sand cells should have piled up, got {} sand cells",
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count
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);
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}
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#[test]
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fn sand_does_not_fall_through_stone() {
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let mut s = setup_empty();
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s.perform_action(&AiAction::FillRect {
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x: 100,
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y: 110,
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w: 10,
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h: 1,
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material: "stone".into(),
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});
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s.perform_action(&AiAction::SetCell {
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x: 105,
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y: 105,
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material: "sand".into(),
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});
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s.step(10);
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assert_eq!(
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s.get_cell(105, 109).material,
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"sand",
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"sand should rest on top of stone"
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);
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assert_eq!(
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s.get_cell(105, 110).material,
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"stone",
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"stone should remain"
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);
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}
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