Smoke on the water. Closes #38

gymkhana/particles/SmokeParticles.tscn

@@ -0,0 +1,31 @@
+[gd_scene load_steps=4 format=2]
+
+[ext_resource path="res://gymkhana/particles/assets/smoke.png" type="Texture" id=1]
+
+[sub_resource type="Curve" id=1]
+min_value = -360.0
+max_value = 360.0
+_data = [ Vector2( 0, 1 ), 0.0, 0.0, 0, 0, Vector2( 1, 13.0909 ), 0.0, 0.0, 0, 0 ]
+
+[sub_resource type="Gradient" id=2]
+colors = PoolColorArray( 0.8125, 0.8125, 0.8125, 1, 0.917647, 0.917647, 0.917647, 0 )
+
+[node name="SmokeParticles" type="CPUParticles2D"]
+position = Vector2( -2, -63 )
+scale = Vector2( 1.48, 1 )
+amount = 20
+lifetime = 2.0
+speed_scale = 0.63
+explosiveness = 0.06
+randomness = 0.84
+lifetime_randomness = 0.55
+texture = ExtResource( 1 )
+emission_shape = 1
+emission_sphere_radius = 1.0
+direction = Vector2( 0, 1 )
+spread = 103.24
+gravity = Vector2( 0, -98 )
+angular_velocity = 42.36
+angular_velocity_curve = SubResource( 1 )
+scale_amount_random = 0.1
+color_ramp = SubResource( 2 )