61 lines
2.2 KiB
GDScript
61 lines
2.2 KiB
GDScript
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class_name BotSteering
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extends RefCounted
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var last_position := Vector3.INF
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var stalled := 0.0
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var repaths := 0
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var life := -1
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func needs_repath(p: Fighter, delta: float) -> bool:
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if life != p.life:
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life = p.life
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last_position = p.global_position
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stalled = 0
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repaths = 0
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if p.bot_path.is_empty():
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stalled = 0
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return false
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if p.global_position.distance_to(last_position) > 0.3:
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last_position = p.global_position
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stalled = 0
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repaths = 0
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else:
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stalled += delta
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if stalled < 1.25: return false
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stalled = 0
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repaths += 1
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return true
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static func reached(position: Vector3, waypoint: Vector3) -> bool:
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# Navigation surfaces sit one voxel above the physical floor. Compare height
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# separately so stair landings do not leave an unreachable waypoint forever.
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return Vector2(position.x - waypoint.x, position.z - waypoint.z).length() < 0.5 and absf(position.y - waypoint.y) < 0.65
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static func clear_direction(p: Fighter, direction: Vector3) -> bool:
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var pose := p.global_transform
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pose.origin.y += 0.26
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return not p.test_move(pose, direction * 0.35)
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static func avoid(p: Fighter, desired: Vector3, roster: Array) -> Vector3:
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var direction := Vector3(desired.x, 0, desired.z).normalized()
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var side := Vector3(-direction.z, 0, direction.x)
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var separation := Vector3.ZERO
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for other: Fighter in roster:
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if other == p or other.hp <= 0 or absf(other.position.y - p.position.y) > 1.2: continue
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var offset := p.position - other.position
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offset.y = 0
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var distance := offset.length()
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if distance > 1.8: continue
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var away := offset.normalized() if distance > 0.01 else side * (1 if p.peer_id > other.peer_id else -1)
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separation += away * maxf(0, 1.3 - distance)
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# Both approaching actors keep right; unlike random strafe they do not
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# mirror one another into the same gap each frame.
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if direction.dot(-away) > 0.2: separation += side * (1.8 - distance)
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var candidate := (direction + separation * 1.4).normalized()
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if clear_direction(p, candidate): return candidate
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if clear_direction(p, direction): return direction
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for angle in [0.7, -0.7, 1.3, -1.3]:
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var alternative := direction.rotated(Vector3.UP, angle)
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if clear_direction(p, alternative): return alternative * 0.65
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return Vector3.ZERO
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