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River transect probe

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- riverTransectProbe renders each surface course as a plan and five cross-sections
- Summary gates ocean writes and spilling channel cells
- Grading columns now report the bank biome
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Brian Neumann-Fopiano committed 2026-09-01 19:18:59 -04:00
1 parent 676372efab
commit 2585b2105a
4 files changed
+585 -3
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probe/src/test/java/art/arcane/iris/probe/RiverTransectProbeTest.java
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package art.arcane.iris.probe;
import art.arcane.iris.engine.hydrology.RiverFootprint;
import org.junit.Test;
import java.util.HashMap;
import java.util.Map;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class RiverTransectProbeTest {
@Test
public void sectionStationsSitAtTenThirtyFiftySeventyAndNinetyPercent() {
assertArrayEquals(new int[] {2, 6, 10, 14, 18}, RiverTransectProbe.sectionStations(20));
assertArrayEquals(new int[] {0, 0, 0, 0, 0}, RiverTransectProbe.sectionStations(1));
assertArrayEquals(new int[] {0, 0, 1, 2, 2}, RiverTransectProbe.sectionStations(3));
}
@Test
public void summaryCountsCutsBankStepsOceanWritesAndSpillingChannels() {
Map<Long, RiverTransectProbe.ColumnView> columns = new HashMap<>();
put(columns, 0, 0, 72, 68, 70, RiverTransectProbe.Role.CHANNEL);
put(columns, 1, 0, 72, 71, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.BANK);
put(columns, -1, 0, 72, 69, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.BANK);
put(columns, 0, 1, 72, 70, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.SHORE);
put(columns, 0, -1, 72, 72, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.NONE);
put(columns, 2, 0, 72, 72, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.NONE);
put(columns, 5, 5, 60, 58, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.NONE);
put(columns, 6, 6, 60, 60, 63, RiverTransectProbe.Role.APRON);
RiverTransectProbe.CourseSummary summary = RiverTransectProbe.summarize(7L, 12, 63, columns);
assertEquals(7L, summary.id());
assertEquals(12, summary.stations());
assertEquals(4, summary.ownedColumns());
assertEquals(1, summary.minimumCut());
assertEquals(4, summary.maximumCut());
assertEquals(1, summary.maximumBankStep());
assertEquals(1, summary.oceanWrites());
assertEquals(1, summary.uncontainedWetCells());
assertFalse(summary.passes());
}
@Test
public void containedCourseAwayFromTheOceanPasses() {
Map<Long, RiverTransectProbe.ColumnView> columns = new HashMap<>();
put(columns, 0, 0, 72, 68, 70, RiverTransectProbe.Role.CHANNEL);
put(columns, 1, 0, 72, 71, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.BANK);
put(columns, -1, 0, 72, 71, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.BANK);
put(columns, 0, 1, 72, 70, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.SHORE);
put(columns, 0, -1, 72, 71, RiverTransectProbe.NO_WATER, RiverTransectProbe.Role.SHORE);
RiverTransectProbe.CourseSummary summary = RiverTransectProbe.summarize(1L, 3, 63, columns);
assertTrue(summary.passes());
assertEquals(0, summary.oceanWrites());
assertEquals(0, summary.uncontainedWetCells());
}
private static void put(
Map<Long, RiverTransectProbe.ColumnView> columns,
int x,
int z,
int natural,
int terrain,
int water,
RiverTransectProbe.Role role
) {
columns.put(RiverFootprint.pack(x, z), new RiverTransectProbe.ColumnView(x, z, natural, terrain, water, role));
}
}