test: extend coverage of testBrush
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dualfroz committed
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@@ -314,3 +314,175 @@ VF_TEST(theOverlayBrushDecidesFromTheStateBeforeTheStroke) {
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CHECK_EQ(bareHistory.stats().batchCount, 0u);
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CHECK_EQ(bareHistory.stats().batchCount, 0u);
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}
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}
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VF_TEST(theNaturalizeBrushLaysGrassOverSoilOverStone) {
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World world;
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for (int y = 0; y <= 6; ++y) world.setBlock(3, y, 3, Block::Cobblestone);
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for (int y = 10; y <= 12; ++y) world.setBlock(3, y, 3, Block::Cobblestone);
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EditHistory history(1u << 22);
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BrushStroke stroke(world, history);
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BrushParams params = baseParams(BrushKind::Naturalize);
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params.soilDepth = 2;
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Selection column = Selection::box({3, 0, 3}, {3, 12, 3});
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BrushResult outcome = stroke.applyWithin(params, column, 1u);
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CHECK(outcome.changed > 0u);
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CHECK(world.blockAt(3, 12, 3) == Block::Grass);
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CHECK(world.blockAt(3, 11, 3) == Block::Dirt);
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CHECK(world.blockAt(3, 10, 3) == Block::Dirt);
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CHECK(world.blockAt(3, 9, 3) == Block::Air);
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// The lower stack is a separate surface and gets its own grass skin.
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CHECK(world.blockAt(3, 6, 3) == Block::Grass);
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CHECK(world.blockAt(3, 5, 3) == Block::Dirt);
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CHECK(world.blockAt(3, 4, 3) == Block::Dirt);
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CHECK(world.blockAt(3, 3, 3) == Block::Stone);
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CHECK(world.blockAt(3, 0, 3) == Block::Stone);
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CHECK(history.undo(world));
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CHECK(world.blockAt(3, 12, 3) == Block::Cobblestone);
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CHECK(world.blockAt(3, 0, 3) == Block::Cobblestone);
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}
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VF_TEST(theGradientBrushRepeatsExactlyForTheSameSeed) {
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BrushParams params = baseParams(BrushKind::Gradient);
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params.center = {20, 20, 20};
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params.radius = 6;
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params.block = Block::Stone;
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params.secondaryBlock = Block::Sand;
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params.seed = 4242u;
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World first;
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EditHistory firstHistory(1u << 22);
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BrushStroke firstStroke(first, firstHistory);
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BrushResult outcome = firstStroke.apply(params, 1u);
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CHECK(outcome.changed > 0u);
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World second;
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EditHistory secondHistory(1u << 22);
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BrushStroke secondStroke(second, secondHistory);
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secondStroke.apply(params, 99u);
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CHECK_EQ(worldFingerprint(first), worldFingerprint(second));
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World third;
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EditHistory thirdHistory(1u << 22);
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BrushStroke thirdStroke(third, thirdHistory);
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BrushParams other = params;
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other.seed = 4243u;
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thirdStroke.apply(other, 1u);
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CHECK(worldFingerprint(third) != worldFingerprint(first));
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// The mix follows the distance: the centre is always the primary block and
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// the outer shell is mostly the secondary one.
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CHECK(first.blockAt(20, 20, 20) == Block::Stone);
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Selection ball = Selection::sphere({20, 20, 20}, 6);
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Selection inner = Selection::sphere({20, 20, 20}, 2);
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SelectionStats innerStats = inner.stats(first);
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SelectionStats shellStats = ball.differenceWith(Selection::sphere({20, 20, 20}, 5)).stats(first);
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CHECK(innerStats.countOf(Block::Stone) > innerStats.countOf(Block::Sand));
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CHECK(shellStats.countOf(Block::Sand) > shellStats.countOf(Block::Stone));
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CHECK_EQ(innerStats.countOf(Block::Air), 0u);
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}
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VF_TEST(aBrushRestrictedToASelectionNeverPaintsOutsideIt) {
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World world;
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EditHistory history(1u << 22);
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BrushStroke stroke(world, history);
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BrushParams params = baseParams(BrushKind::Sphere);
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params.center = {30, 30, 30};
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params.radius = 5;
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params.block = Block::Bricks;
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Selection half = Selection::box({30, 25, 25}, {35, 35, 35});
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BrushResult outcome = stroke.applyWithin(params, half, 1u);
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CHECK(outcome.changed > 0u);
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CHECK_EQ(outcome.changed, BrushStroke::regionOf(params).intersectWith(half).count());
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CHECK(world.blockAt(30, 30, 30) == Block::Bricks);
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CHECK(world.blockAt(29, 30, 30) == Block::Air);
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CHECK(world.blockAt(26, 30, 30) == Block::Air);
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const EditBatch* batch = history.peekUndo();
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for (const EditOp& op : batch->ops) CHECK(half.contains(op.position));
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}
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VF_TEST(aStrokeReportsWhenItReachesBeyondTheLoadedWorld) {
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World loaded;
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for (int y = 0; y < 16; ++y)
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for (int z = 0; z < 16; ++z)
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for (int x = 0; x < 16; ++x) loaded.setBlock(x, y, z, Block::Stone);
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CHECK_EQ(loaded.chunkCount(), 1u);
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EditHistory history(1u << 22);
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BrushStroke inside(loaded, history);
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BrushParams params = baseParams(BrushKind::Sphere);
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params.center = {8, 8, 8};
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params.radius = 3;
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params.block = Block::Glass;
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BrushResult contained = inside.apply(params, 1u);
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CHECK(!contained.outsideLoadedWorld);
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CHECK(contained.changed > 0u);
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BrushParams overhang = params;
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overhang.center = {14, 8, 8};
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overhang.radius = 4;
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BrushResult spilled = inside.apply(overhang, 2u);
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CHECK(spilled.outsideLoadedWorld);
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CHECK(spilled.changed > 0u);
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CHECK(loaded.chunkCount() > 1u);
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}
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VF_TEST(aStrokeIsClippedAtTheWorldHeightLimits) {
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World world;
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EditHistory history(1u << 22);
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BrushStroke stroke(world, history);
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BrushParams params = baseParams(BrushKind::Sphere);
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params.center = {8, 2, 8};
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params.radius = 4;
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params.block = Block::Stone;
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params.worldMinY = 0;
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params.worldMaxY = 5;
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BrushResult outcome = stroke.apply(params, 1u);
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CHECK(outcome.clippedAtHeightLimit);
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CHECK(outcome.changed > 0u);
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CHECK(outcome.visited > outcome.changed);
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for (int x = 4; x <= 12; ++x) {
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CHECK(world.blockAt(x, -1, 8) == Block::Air);
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CHECK(world.blockAt(x, 5, 8) == Block::Air);
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}
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CHECK(world.blockAt(8, 0, 8) == Block::Stone);
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CHECK(world.blockAt(8, 4, 8) == Block::Stone);
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}
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VF_TEST(consecutiveStrokesUndoInReverseOrder) {
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World world = bumpyWorld();
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uint64_t start = worldFingerprint(world);
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EditHistory history(1u << 22);
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BrushStroke stroke(world, history);
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BrushParams first = baseParams(BrushKind::Sphere);
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first.center = {4, 10, 4};
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first.block = Block::Wood;
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stroke.apply(first, 1u);
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uint64_t afterFirst = worldFingerprint(world);
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BrushParams second = baseParams(BrushKind::Cylinder);
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second.center = {12, 10, 12};
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second.block = Block::Leaves;
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stroke.apply(second, 2u);
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uint64_t afterSecond = worldFingerprint(world);
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CHECK_EQ(history.stats().batchCount, 2u);
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CHECK(afterFirst != start);
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CHECK(afterSecond != afterFirst);
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CHECK(history.undo(world));
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CHECK_EQ(worldFingerprint(world), afterFirst);
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CHECK(history.undo(world));
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CHECK_EQ(worldFingerprint(world), start);
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CHECK(history.redo(world));
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CHECK_EQ(worldFingerprint(world), afterFirst);
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}
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