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fix issue where construction sites could be placed outside of game world and add tests

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This commit is contained in:
mlangkabel
2026-06-22 21:13:01 +02:00
parent 59688e6532
commit e5017ab3c5
6 changed files with 251 additions and 19 deletions
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103
src/test/BuildingTest.cpp
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@@ -64,6 +64,27 @@ static void runTicks(BuildingSystem& bs, BeltSystem& belts, int n, Tick& tick)
}
}
// Owns a BuildingSystem and its dependencies for placement-bounds tests.
struct PlacementFixture
{
GameConfig cfg = loadConfig();
BeltSystem belts{cfg.world.beltSpeed_tps};
int stock = 0;
std::mt19937 rng{0};
BuildingId nextBuildingId = 1;
BuildingSystem bs;
PlacementFixture()
: bs(cfg, belts,
[this]() { return nextBuildingId++; },
[this](int n) { stock += n; },
[](const std::string&, QVector2D, const std::optional<ShipLayoutConfig>&) {},
[](const std::string&) -> bool { return true; },
rng)
{
}
};
// ---------------------------------------------------------------------------
// Placement
// ---------------------------------------------------------------------------
@@ -93,6 +114,88 @@ TEST_CASE("BuildingSystem: place miner occupies expected body tiles", "[building
REQUIRE_FALSE(bs.isTileOccupied(QPoint(1, 1)));
}
// -- World-bounds rejection (REQ-BLD-PLACE-VALID) ---------------------------
TEST_CASE("BuildingSystem: place rejects a building above the world (y < 0)", "[building]")
{
PlacementFixture f;
// Miner mask ["AA","A>"] East → body at (0,0),(1,0),(0,1); at y=-1 the top
// row sits above the world.
const BuildingId id = f.bs.place(BuildingType::Miner, QPoint(0, -1), Rotation::East, 0);
REQUIRE(id == kInvalidBuildingId);
REQUIRE(f.bs.allSites().empty());
REQUIRE_FALSE(f.bs.isTileOccupied(QPoint(0, 0)));
}
TEST_CASE("BuildingSystem: place rejects a building below the world (y >= height)", "[building]")
{
PlacementFixture f;
const int heightTiles = f.cfg.world.heightTiles;
// Anchored on the last in-bounds row, the miner's lower body row reaches
// y == heightTiles, which is outside the world.
const BuildingId id = f.bs.place(BuildingType::Miner,
QPoint(0, heightTiles - 1), Rotation::East, 0);
REQUIRE(id == kInvalidBuildingId);
REQUIRE(f.bs.allSites().empty());
}
TEST_CASE("BuildingSystem: place rejects a building left of the asteroid edge", "[building]")
{
PlacementFixture f;
const int leftEdgeX = -f.cfg.world.regions.asteroidWidth_tiles;
const BuildingId id = f.bs.place(BuildingType::Miner,
QPoint(leftEdgeX - 1, 0), Rotation::East, 0);
REQUIRE(id == kInvalidBuildingId);
REQUIRE(f.bs.allSites().empty());
}
TEST_CASE("BuildingSystem: place accepts a building flush against the world's left edge",
"[building]")
{
PlacementFixture f;
const int leftEdgeX = -f.cfg.world.regions.asteroidWidth_tiles;
// Miner body min relative x is 0, so its leftmost cell sits exactly on the edge.
const BuildingId id = f.bs.place(BuildingType::Miner,
QPoint(leftEdgeX, 0), Rotation::East, 0);
REQUIRE(id != kInvalidBuildingId);
REQUIRE(f.bs.isTileOccupied(QPoint(leftEdgeX, 0)));
}
TEST_CASE("BuildingSystem: place imposes no right-side bound (space extends rightward)",
"[building]")
{
PlacementFixture f;
const BuildingId id = f.bs.place(BuildingType::Miner,
QPoint(1000, 0), Rotation::East, 0);
REQUIRE(id != kInvalidBuildingId);
}
TEST_CASE("BuildingSystem: isPlacementValid enforces terrain and world bounds", "[building]")
{
PlacementFixture f;
const int leftEdgeX = -f.cfg.world.regions.asteroidWidth_tiles;
// Miner is all-asteroid (A): valid only fully on the asteroid (x < 0).
REQUIRE(f.bs.isPlacementValid(BuildingType::Miner, QPoint(-3, 0), Rotation::East));
REQUIRE_FALSE(f.bs.isPlacementValid(BuildingType::Miner, QPoint(0, 0), Rotation::East)); // A cells in space
REQUIRE_FALSE(f.bs.isPlacementValid(BuildingType::Miner, QPoint(0, -1), Rotation::East)); // above world
REQUIRE(f.bs.isPlacementValid(BuildingType::Miner, QPoint(leftEdgeX, 0), Rotation::East));
REQUIRE_FALSE(f.bs.isPlacementValid(BuildingType::Miner,
QPoint(leftEdgeX - 1, 0), Rotation::East)); // past left edge
// Shipyard mask ["AAAS>","AAAS "] straddles the boundary: A cells on the
// asteroid, the S (dock) cell in space. At anchor (-3,0) the A cells land at
// x=-3..-1 and the dock at x=0.
REQUIRE(f.bs.isPlacementValid(BuildingType::Shipyard, QPoint(-3, 0), Rotation::East));
REQUIRE_FALSE(f.bs.isPlacementValid(BuildingType::Shipyard, QPoint(0, 0), Rotation::East)); // A cells in space
REQUIRE_FALSE(f.bs.isPlacementValid(BuildingType::Shipyard, QPoint(-4, 0), Rotation::East)); // dock on asteroid
}
TEST_CASE("BuildingSystem: placing a belt registers it with BeltSystem after construction",
"[building]")
{