110 lines
3.9 KiB
GDScript
110 lines
3.9 KiB
GDScript
extends SceneTree
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## Smoke test verifying chunk coordinate mapping and streaming behavior.
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## Regression test for the issue where moving forward in Z unloaded chunk (0,0,0)
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## because of transposed Godot Y (Height) and Godot Z (Ground) in coord_for_position.
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var passed := 0
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var failed := 0
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func _check(label: String, cond: bool) -> void:
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if cond:
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passed += 1
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print(" PASS: ", label)
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else:
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failed += 1
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printerr(" FAIL: ", label)
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func _init() -> void:
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_test_coord_for_position()
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_test_chunk_stream_manager_proximity()
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print("\n=== SMOKE RESULT: %d/%d passed ===" % [passed, passed + failed])
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quit(0 if failed == 0 else 1)
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func _test_coord_for_position() -> void:
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print("--- Chunk.coord_for_position coordinate mapping ---")
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# In Godot 3D: X is East/West (chunk X), Y is Height/Up (chunk Z), Z is North/South (chunk Y).
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# Spawn origin
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var c0 := Chunk.coord_for_position(Vector3(0.0, 1.5, 0.0))
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_check("Origin at (0, 1.5, 0) maps to (0, 0, 0)", c0 == Vector3i(0, 0, 0))
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# Moving along Godot Z (North/South) within chunk 0:
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# Previously at Z=3, coord.z was incorrectly 3, which exceeded streaming_radius and unloaded chunk 0!
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var c3 := Chunk.coord_for_position(Vector3(0.0, 1.5, 3.0))
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_check("Walking 3m forward to Z=3 maps to chunk (0, 0, 0)", c3 == Vector3i(0, 0, 0))
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var c20 := Chunk.coord_for_position(Vector3(10.0, 1.5, 20.0))
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_check("Inside chunk at (10, 1.5, 20) maps to (0, 0, 0)", c20 == Vector3i(0, 0, 0))
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var c31 := Chunk.coord_for_position(Vector3(31.0, 1.5, 31.0))
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_check("Far corner of chunk at (31, 1.5, 31) maps to (0, 0, 0)", c31 == Vector3i(0, 0, 0))
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# Crossing into adjacent chunks
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var cz_next := Chunk.coord_for_position(Vector3(0.0, 1.5, 32.0))
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_check("Crossing Z=32 maps to chunk Y=1 (0, 1, 0)", cz_next == Vector3i(0, 1, 0))
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var cx_next := Chunk.coord_for_position(Vector3(32.0, 1.5, 0.0))
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_check("Crossing X=32 maps to chunk X=1 (1, 0, 0)", cx_next == Vector3i(1, 0, 0))
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var cz_prev := Chunk.coord_for_position(Vector3(0.0, 1.5, -1.0))
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_check("Negative Z maps to chunk Y=-1 (0, -1, 0)", cz_prev == Vector3i(0, -1, 0))
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var cx_prev := Chunk.coord_for_position(Vector3(-1.0, 1.5, 0.0))
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_check("Negative X maps to chunk X=-1 (-1, 0, 0)", cx_prev == Vector3i(-1, 0, 0))
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# Player height / jumping:
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var c_jump := Chunk.coord_for_position(Vector3(0.0, 5.0, 0.0))
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_check("Jumping to height Y=5 in flat world stays at cz=0", c_jump == Vector3i(0, 0, 0))
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func _test_chunk_stream_manager_proximity() -> void:
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print("--- ChunkStreamManager streaming proximity ---")
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var sm := ChunkStreamManager.new()
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sm.streaming_radius = 2
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var player := Node3D.new()
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player.position = Vector3(0.0, 1.5, 0.0)
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root.add_child(player)
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root.add_child(sm)
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sm.player = player
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sm.is_active = true
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# Simulate immediate streaming update on spawn
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sm._update_streaming()
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var targets: Dictionary = sm._compute_target_chunks()
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_check("Target chunks computed on spawn", targets.size() > 0)
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_check("Spawn chunk (0,0,0) is in target set", targets.has(Vector3i(0, 0, 0)))
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# Ensure flat world doesn't spam non-zero cz chunks
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var all_cz_zero := true
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for coord in targets.keys():
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if coord.z != 0:
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all_cz_zero = false
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break
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_check("Flat world targets only contain cz=0", all_cz_zero)
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# Simulate moving close to placed lampposts (Z = 1, 2, 3, 4, 5, 10, 20)
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player.position = Vector3(0.0, 1.5, 3.0)
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sm._update_streaming()
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targets = sm._compute_target_chunks()
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_check("Approaching lamppost at Z=3: chunk (0,0,0) is STILL in target set", targets.has(Vector3i(0, 0, 0)))
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player.position = Vector3(5.0, 1.5, 15.0)
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sm._update_streaming()
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targets = sm._compute_target_chunks()
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_check("Approaching lamppost at Z=15: chunk (0,0,0) is STILL in target set", targets.has(Vector3i(0, 0, 0)))
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player.position = Vector3(0.0, 1.5, 31.0)
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sm._update_streaming()
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targets = sm._compute_target_chunks()
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_check("Approaching lamppost at Z=31: chunk (0,0,0) is STILL in target set", targets.has(Vector3i(0, 0, 0)))
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# Clean up
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sm.queue_free()
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player.queue_free()
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