khanat-client/scenes/decors/terrains/demo/grass.gd

extends Particles

export var rows = 64.0 setget set_rows, get_rows
func set_rows( value ):
	rows = value
	amount = rows * rows
	update_aabb()
	if process_material:
		process_material.set_shader_param( "rows", rows )
func get_rows():
	return rows
	

export var spacing = 1.0 setget set_spacing, get_spacing
func set_spacing( value ):
	spacing = value
	update_aabb()
	if process_material:
		process_material.set_shader_param( "spacing", spacing )
func get_spacing():
	return spacing
	

func update_aabb():
	var size = self.rows * self.spacing
	self.visibility_aabb = AABB( -Vector3(0.5*size, 50.0, 0.5*size), Vector3(size, 100.0, size) )

func _ready():
	self.set_rows( self.rows )
	self.set_spacing( self.spacing )

func _process( delta ):

	var viewport = self.get_viewport()
	var camera = viewport.get_camera()
	if camera:
		var pos = camera.global_transform.origin
		pos.y = 0.0
		self.global_transform.origin = pos