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Planar-distance test: the target stands in a gravity well, so space and plane disagree

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Units cannot be lifted by hand (Entity.Update resets Position.y to the zone's height), so the first version of the test never put the target off the plane. The zone's depth now does it, and the Dart claim's Range is set between the two distances.

Builds: yes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Meta Vens 2026-10-14 04:49:06 +02:00
commit 521cb6b9d5
1 changed files with 12 additions and 5 deletions
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17
tests/Aetheria.Shared.Tests/FireControlTests.cs
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@ -369,17 +369,24 @@ public sealed class FireControlTests : IDisposable
Assert.Same(weak, shooter.TargetItem.Value);
}
// The distance Combat measures is the gate's: planar (FireControl R7). A target 8 above the plane at planar 10 is 12.8
// away in space, past the Dart's Range of 12, yet the gate and the claim both read 10: the Dart (about 16.7 there against
// Slug's 5) is the chosen claim. Mutation: Combat measures the three-dimensional distance (the Dart then reads 0).
// The distance Combat measures is the gate's: planar (FireControl R7). Zone depth puts the target above the shooter's
// height, so its distance in space is longer than its planar distance. A claim whose Range lies between the two, full
// damage out to the planar distance, is in range on the plane and out of range in space: it (against Slug's 5) is the
// chosen claim. Mutation: Combat measures the three-dimensional distance (the claim then reads 0).
[Fact]
public void TheAIMeasuresTheTargetOnTheGroundPlane()
{
var (shooter, target, zone) = BuildCombatEncounter(float3(0, 8, 10), twoTargetGuns: true);
var (shooter, target, zone) = BuildCombatEncounter(float3(0, 0, 600), twoTargetGuns: true);
zone.Settings.ZoneDepth = 1000f;
zone.Settings.ZoneDepthExponent = 1f;
var strong = target.Equipment.Single(x => x.Data.Name == "Gun");
var weak = target.Equipment.Single(x => x.Data.Name == "WeakGun");
zone.Update(1f); // heights follow the zone's depth from the first update
var planar = length((target.Position - shooter.Position).xz);
var space = length(target.Position - shooter.Position);
Assert.True(space - planar > 4f, $"the fixture puts the target {space - planar:F1} above the plane's distance");
target.Claim(strong, ClaimedDesign("Dart", 100f, range: 12f, effective: 0f));
target.Claim(strong, ClaimedDesign("Dart", 100f, range: (planar + space) / 2f, effective: planar));
target.Claim(weak, ClaimedDesign("Slug", 5f));
shooter.RecordReveal(target, strong, SignatureChannel.LaunchFlash, target.ClaimOf(strong));
shooter.RecordReveal(target, weak, SignatureChannel.LaunchFlash, target.ClaimOf(weak));