Movement modifiers are complicated.

lib/classes/movement_parameters.gd

@@ -26,7 +26,13 @@ export var debug_name :String
 func modify(_movement_parameters :MovementParameters):
 	pass
 
+func apply_multiple_modifiers( _modifiers: Array):
+	for m in _modifiers:
+		if m is StateModifierAnimatedActor:
+			apply_state_modifier(m)
+
 func apply_state_modifier(_modifier :StateModifierMovement):
+	#_modifier.direction == _modifier.APPLIED_DIRECTIONS.LEFT_OR_UP
 	match _modifier.modifier_type:
 		StateModifierMovement.SUB_TYPE.NEGATIVE_CONSTRAINT:
 			var adjusted_move_speed = base_move_speed.x + _modifier.horizontal_speed
@@ -64,6 +70,13 @@ func apply_state_modifier(_modifier :StateModifierMovement):
 			move_speed_modifier.y += _modifier.vertical_speed_offset
 			move_speed_modifier_acceleration.y += _modifier.vertical_speed_offset_acceleration
 			
+	UiManager.debug_text =	( #"H_Speed x Dir: " + str(h_speed) + str('duh') +
+	"BaseSpeed  Fm:{0} To:{1}".format({"0":"%5.2f" % base_move_speed.x, "1":"%5.2f" % base_move_speed.y}) + 
+	"\nSpeedMod   Fm:{0} To:{1}".format({"0":"%5.2f" % move_speed_modifier.x, "1":"%5.2f" % move_speed_modifier.y}) + 
+	"\nMoveAccel: {0}, {1}".format({"0":"%4.1f" % base_move_acceleration.x, "1":"%4.1f" % base_move_acceleration.y}) + 
+	"\nType: " + str(_modifier.modifier_type)
+	)
+
 	
 	
 # var movement_params :Dictionary = {

lib/classes/movement_state_receiver.gd

@@ -40,7 +40,7 @@ const LEFT = -1.0
 const RIGHT = 1.0
 
 func _ready():
-	velocity_controller.debug = true
+	#velocity_controller.debug = true
 
 	## FuncRef to request state machine change state
 	request_state_change = funcref(get_node(callable_state_machine), 'change_to_known_state')

lib/classes/state_modifier.gd

@@ -31,7 +31,7 @@ var debug: bool = false
 ## Modification Type
 ## if an animation is specified, the default behavior will be just to override
 ## the state animation. Or perform a 'Replace Animation'
-var modifier_type = TYPE.NONE
+export(TYPE) var modifier_type = TYPE.NONE
 
 export var name :String = ''
 #var ready :bool = false

lib/classes/state_modifier_movement.gd

@@ -8,7 +8,7 @@ export var horizontal_acceleration: float = 0
 export var horizontal_speed_offset: float = 0
 ## Applies only if offset applies
 export var horizontal_speed_offset_acceleration: float = 0
-export var jerk_factor: float = 0
+#export var jerk_factor: float = 0
 
 export var vertical_speed: float = 0
 export var vertical_acceleration: float = 0
@@ -20,14 +20,22 @@ export var vertical_speed_offset_acceleration: float = 0
 export var gravity: int = 0
 
 ## Processing Directives (help determine how the merge function works)
-var direction :float = 0.0 # -1, 0, 1
+enum APPLIED_DIRECTIONS {
+	LEFT_OR_UP = -1,
+	RELATIVE = 0,
+	RIGHT_OR_DOWN = 1
+}
+export(APPLIED_DIRECTIONS) var direction :float = float(APPLIED_DIRECTIONS.RELATIVE) # -1, 0, 1
 export var only_grounded :bool = false
 
+## Ways to determine how modifiers are applied to movement parameters
 enum SUB_TYPE {
 	NONE, 			# Basic physics modifier just adds numbers
 	## Disallows ability to surpass zero when applied to state kinematic values
-	NEGATIVE_CONSTRAINT		
+	NEGATIVE_CONSTRAINT,
+	ONLY_ON_ZERO
 }
+export(SUB_TYPE) var processing_mode
 
 func _to_string():
 	return "StateModifierMovement"
@@ -42,7 +50,7 @@ func reset():
 	horizontal_speed_offset = 0
 	## Applies only if offset applies
 	horizontal_speed_offset_acceleration = 0
-	jerk_factor = 0
+	#jerk_factor = 0
 
 func copy(_copy_state: StateModifier):
 	.copy(_copy_state)

src/Interactables/modifiers/icy_surface.tres

@@ -6,16 +6,18 @@
 resource_local_to_scene = true
 resource_name = "ice"
 script = ExtResource( 1 )
+modifier_type = 0
 name = "ice_or_something"
 timeout_seconds = 0.0
 horizontal_speed = 0.0
 horizontal_acceleration = -250.0
 horizontal_speed_offset = 0.0
 horizontal_speed_offset_acceleration = 0.0
-jerk_factor = 0.0
 vertical_speed = 0.0
 vertical_acceleration = 0.0
 vertical_speed_offset = 0.0
 vertical_speed_offset_acceleration = 0.0
 gravity = 0
+direction = 0
 only_grounded = true
+processing_mode = 0

src/Interactables/modifiers/left_conveyor.tres

@@ -0,0 +1,23 @@
+[gd_resource type="Resource" load_steps=2 format=2]
+
+[ext_resource path="res://lib/classes/state_modifier_movement.gd" type="Script" id=1]
+
+[resource]
+resource_local_to_scene = true
+resource_name = "conveyor_left"
+script = ExtResource( 1 )
+modifier_type = 0
+name = "conveyor_left"
+timeout_seconds = 0.0
+horizontal_speed = -30.0
+horizontal_acceleration = 0.0
+horizontal_speed_offset = 0.0
+horizontal_speed_offset_acceleration = 0.0
+vertical_speed = 0.0
+vertical_acceleration = 0.0
+vertical_speed_offset = 0.0
+vertical_speed_offset_acceleration = 0.0
+gravity = 0
+direction = -1
+only_grounded = true
+processing_mode = 0

src/Interactables/modifiers/left_wind.tres

@@ -0,0 +1,23 @@
+[gd_resource type="Resource" load_steps=2 format=2]
+
+[ext_resource path="res://lib/classes/state_modifier_movement.gd" type="Script" id=1]
+
+[resource]
+resource_local_to_scene = true
+resource_name = "wind_left"
+script = ExtResource( 1 )
+modifier_type = 0
+name = "wind_left"
+timeout_seconds = 0.0
+horizontal_speed = -30.0
+horizontal_acceleration = 0.0
+horizontal_speed_offset = 0.0
+horizontal_speed_offset_acceleration = 0.0
+vertical_speed = 0.0
+vertical_acceleration = 0.0
+vertical_speed_offset = 0.0
+vertical_speed_offset_acceleration = 0.0
+gravity = 0
+direction = -1
+only_grounded = false
+processing_mode = 0