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extends MeshInstance3D
class_name Thruster
## Lander thruster. This class keeps track of current activation strength
## and handles the particle effects.
var thruster_strength: float
@onready var _particles: GPUParticles3D = $GPUParticles3D
var _material: ParticleProcessMaterial
func _ready():
_material = _particles.process_material
func _physics_process(delta):
if thruster_strength > 0.01:
if not _particles.emitting:
_particles.emitting = true
_material.initial_velocity_max = 0.01 + thruster_strength / 300.0
_material.initial_velocity_min = _material.initial_velocity_max
else:
if _particles.emitting:
_particles.emitting = false
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