test: add tests for temperature and humidity climate sampling
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#include "testHarness.h"
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#include "vf/Climate.h"
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#include "vf/BiomeGen.h"
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using namespace vf;
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namespace {
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ClimateConfig coldConfig() {
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ClimateConfig cfg;
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cfg.freezeTemperature = 100.0f;
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cfg.meltTemperature = 200.0f;
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return cfg;
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}
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ClimateConfig warmConfig() {
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ClimateConfig cfg;
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cfg.freezeTemperature = -100.0f;
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cfg.meltTemperature = -100.0f;
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return cfg;
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}
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ClimateConfig neutralConfig() {
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ClimateConfig cfg;
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cfg.freezeTemperature = -100.0f;
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cfg.meltTemperature = 200.0f;
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return cfg;
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}
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} // namespace
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VF_TEST(temperatureFallsWithHeightAndLatitude) {
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BiomeGen biomes;
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Climate climate(biomes);
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float atSea = climate.temperatureAt(50, climate.settings().seaLevel, 0);
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float aloft = climate.temperatureAt(50, climate.settings().seaLevel + 80, 0);
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float polar = climate.temperatureAt(50, climate.settings().seaLevel, 4000);
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CHECK(aloft < atSea);
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CHECK(polar < atSea);
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}
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VF_TEST(exposedWaterFreezesWhenColdButCoveredWaterDoesNot) {
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BiomeGen biomes;
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Climate climate(biomes, coldConfig());
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World world;
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world.setBlock(10, 30, 10, Block::Water);
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world.setBlock(14, 30, 10, Block::Water);
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world.setBlock(14, 31, 10, Block::Stone);
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std::vector<ClimateChange> changes = climate.tick(world, Vec3i{8, 30, 8}, Vec3i{10, 4, 6},
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Precipitation::None);
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Climate::apply(world, changes);
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CHECK(world.blockAt(10, 30, 10) == Block::Ice);
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CHECK(world.blockAt(14, 30, 10) == Block::Water);
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}
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VF_TEST(iceThawsWhenWarm) {
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BiomeGen biomes;
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Climate climate(biomes, warmConfig());
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World world;
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world.setBlock(5, 40, 5, Block::Ice);
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std::vector<ClimateChange> changes = climate.tick(world, Vec3i{4, 40, 4}, Vec3i{4, 2, 4},
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Precipitation::None);
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Climate::apply(world, changes);
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CHECK(world.blockAt(5, 40, 5) == Block::Water);
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}
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VF_TEST(iceMeltsBesideHeatSourceOnlyWhenAdjacent) {
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BiomeGen biomes;
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Climate climate(biomes, neutralConfig());
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World world;
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world.setBlock(20, 50, 20, Block::Ice);
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world.setBlock(21, 50, 20, Block::Lava);
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world.setBlock(25, 50, 20, Block::Ice);
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std::vector<ClimateChange> changes = climate.tick(world, Vec3i{18, 49, 18}, Vec3i{12, 4, 6},
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Precipitation::None);
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Climate::apply(world, changes);
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CHECK(world.blockAt(20, 50, 20) == Block::Water);
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CHECK(world.blockAt(25, 50, 20) == Block::Ice);
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}
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VF_TEST(snowAccumulatesUnderSnowfallAndStopsWithoutIt) {
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BiomeGen biomes;
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Climate climate(biomes, coldConfig());
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World world;
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world.setBlock(0, 30, 0, Block::Stone);
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Vec3i origin{-1, 30, -1};
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Vec3i dims{3, 5, 3};
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Vec3i snowCell{0, 31, 0};
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std::vector<ClimateChange> first = climate.tick(world, origin, dims, Precipitation::Snow);
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Climate::apply(world, first);
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CHECK(world.blockAt(0, 31, 0) == Block::SnowLayer);
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CHECK_EQ(climate.snowDepthAt(snowCell), 1);
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for (int i = 0; i < 3; ++i) {
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std::vector<ClimateChange> more = climate.tick(world, origin, dims, Precipitation::Snow);
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Climate::apply(world, more);
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}
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CHECK_EQ(climate.snowDepthAt(snowCell), 4);
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int depthBefore = climate.snowDepthAt(snowCell);
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std::vector<ClimateChange> dry = climate.tick(world, origin, dims, Precipitation::None);
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Climate::apply(world, dry);
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CHECK_EQ(climate.snowDepthAt(snowCell), depthBefore);
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}
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VF_TEST(snowDepthClampsAtMax) {
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BiomeGen biomes;
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ClimateConfig cfg = coldConfig();
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cfg.maxSnowDepth = 3;
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Climate climate(biomes, cfg);
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World world;
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world.setBlock(0, 30, 0, Block::Stone);
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Vec3i origin{-1, 30, -1};
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Vec3i dims{3, 5, 3};
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for (int i = 0; i < 10; ++i) {
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std::vector<ClimateChange> changes = climate.tick(world, origin, dims, Precipitation::Snow);
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Climate::apply(world, changes);
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}
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CHECK_EQ(climate.snowDepthAt(Vec3i{0, 31, 0}), 3);
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}
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VF_TEST(iceCompactsToPackedIceInProlongedCold) {
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BiomeGen biomes;
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ClimateConfig cfg = coldConfig();
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cfg.packThreshold = 4;
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Climate climate(biomes, cfg);
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World world;
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world.setBlock(5, 40, 5, Block::Ice);
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Vec3i origin{4, 40, 4};
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Vec3i dims{4, 3, 4};
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for (int i = 0; i < 3; ++i) {
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std::vector<ClimateChange> changes = climate.tick(world, origin, dims, Precipitation::None);
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Climate::apply(world, changes);
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}
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CHECK(world.blockAt(5, 40, 5) == Block::Ice);
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CHECK_EQ(climate.iceAgeAt(Vec3i{5, 40, 5}), 3);
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std::vector<ClimateChange> last = climate.tick(world, origin, dims, Precipitation::None);
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Climate::apply(world, last);
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CHECK(world.blockAt(5, 40, 5) == Block::PackedIce);
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}
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VF_TEST(frostSpreadsFromExistingIceButNotAcrossOpenWater) {
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BiomeGen biomes;
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ClimateConfig cfg;
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cfg.freezeTemperature = -100.0f;
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cfg.frostSpreadTemperature = 100.0f;
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cfg.meltTemperature = 200.0f;
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Climate climate(biomes, cfg);
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World world;
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world.setBlock(10, 40, 10, Block::Ice);
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world.setBlock(11, 40, 10, Block::Water);
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world.setBlock(20, 40, 10, Block::Water);
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std::vector<ClimateChange> changes = climate.tick(world, Vec3i{8, 40, 8}, Vec3i{16, 3, 6},
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Precipitation::None);
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Climate::apply(world, changes);
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CHECK(world.blockAt(11, 40, 10) == Block::Ice);
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CHECK(world.blockAt(20, 40, 10) == Block::Water);
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}
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VF_TEST(packedIceMeltsBesideHeat) {
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BiomeGen biomes;
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ClimateConfig cfg = coldConfig();
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cfg.packThreshold = 2;
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Climate climate(biomes, cfg);
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World world;
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world.setBlock(5, 40, 5, Block::Ice);
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Vec3i origin{4, 40, 4};
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Vec3i dims{4, 3, 4};
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for (int i = 0; i < 2; ++i) {
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std::vector<ClimateChange> changes = climate.tick(world, origin, dims, Precipitation::None);
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Climate::apply(world, changes);
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}
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CHECK(world.blockAt(5, 40, 5) == Block::PackedIce);
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world.setBlock(6, 40, 5, Block::Lava);
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std::vector<ClimateChange> melt = climate.tick(world, origin, dims, Precipitation::None);
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Climate::apply(world, melt);
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CHECK(world.blockAt(5, 40, 5) == Block::Water);
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}
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VF_TEST(accumulatedSnowMeltsBesideHeat) {
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BiomeGen biomes;
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Climate climate(biomes, coldConfig());
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World world;
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world.setBlock(0, 30, 0, Block::Stone);
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Vec3i origin{-1, 30, -1};
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Vec3i dims{3, 5, 3};
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Vec3i snowCell{0, 31, 0};
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for (int i = 0; i < 5; ++i) {
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std::vector<ClimateChange> changes = climate.tick(world, origin, dims, Precipitation::Snow);
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Climate::apply(world, changes);
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}
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int peak = climate.snowDepthAt(snowCell);
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CHECK(peak > 1);
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world.setBlock(1, 31, 0, Block::Torch);
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for (int i = 0; i < peak; ++i) {
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std::vector<ClimateChange> changes = climate.tick(world, origin, dims, Precipitation::None);
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Climate::apply(world, changes);
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}
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CHECK_EQ(climate.snowDepthAt(snowCell), 0);
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CHECK(world.blockAt(0, 31, 0) == Block::Air);
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}
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