jump dust test, not very happy about the result

JumpDust.tscn

@@ -0,0 +1,33 @@
+[gd_scene load_steps=3 format=2]
+
+[sub_resource type="Curve" id=1]
+max_value = 100.0
+_data = [ Vector2( 0, 83.5227 ), 0.0, -189.877, 0, 0, Vector2( 1, 0 ), 0.0, 0.0, 0, 0 ]
+
+[sub_resource type="Gradient" id=2]
+offsets = PoolRealArray( 0, 0.718841, 1 )
+colors = PoolColorArray( 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 )
+
+[node name="CPUParticles2D" type="CPUParticles2D"]
+emitting = false
+amount = 35
+lifetime = 0.25
+one_shot = true
+explosiveness = 1.0
+lifetime_randomness = 0.2
+local_coords = false
+emission_shape = 2
+emission_rect_extents = Vector2( 3, 0 )
+direction = Vector2( 0, -1 )
+spread = 6.0
+gravity = Vector2( 0, 0 )
+initial_velocity = 20.0
+initial_velocity_random = 0.1
+linear_accel = -50.0
+linear_accel_random = 1.0
+radial_accel = 2.0
+radial_accel_random = 0.5
+damping = 25.0
+damping_random = 1.0
+damping_curve = SubResource( 1 )
+color_ramp = SubResource( 2 )

Player.gd

@@ -30,6 +30,7 @@ var var_jump = 0
 
 
 onready var sprite = $Sprite
+onready var jump_dust = $JumpDust
 
 
 func _physics_process(delta):
@@ -55,6 +56,8 @@ func _physics_process(delta):
 		coyote_jump_grace = 0
 		var_jump = VAR_JUMP_TIME
 		speed.y = JUMP_SPEED
+		if on_ground:
+			jump_dust.emitting = true
 	else:
 		# Gravity
 		var mult = 1

Player.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=4 format=2]
+[gd_scene load_steps=5 format=2]
 
 [ext_resource path="res://Assets/Player/player.png" type="Texture" id=1]
 [ext_resource path="res://Player.gd" type="Script" id=2]
+[ext_resource path="res://JumpDust.tscn" type="PackedScene" id=3]
 
 [sub_resource type="RectangleShape2D" id=1]
 extents = Vector2( 3, 8 )
@@ -16,3 +17,5 @@ texture = ExtResource( 1 )
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
 position = Vector2( 0, -8 )
 shape = SubResource( 1 )
+
+[node name="JumpDust" parent="." instance=ExtResource( 3 )]