Make crab behavior reflect catch quality

gathering/gatherable_data.gd

@@ -2,6 +2,7 @@ class_name GatherableData
 extends Resource
 
 const FishDataType = preload("res://fish/fish_data.gd")
+const FishQualityType = preload("res://fish/fish_quality.gd")
 
 @export var type_id: StringName
 @export var catch_data: FishDataType
@@ -12,6 +13,20 @@ const FishDataType = preload("res://fish/fish_data.gd")
 @export_range(0.0, 10.0, 0.05) var movement_speed: float = 0.35
 @export_range(0.1, 20.0, 0.1) var roam_radius: float = 3.5
 @export_range(0.1, 20.0, 0.1) var scare_radius: float = 2.8
+@export var quality_movement_speed_multipliers: Array[float] = [
+	1.0,
+	1.15,
+	1.35,
+	1.6,
+	2.0,
+]
+@export var quality_scare_radius_multipliers: Array[float] = [
+	1.0,
+	1.1,
+	1.25,
+	1.45,
+	1.7,
+]
 @export_range(0.1, 5.0, 0.05) var capture_radius: float = 0.7
 @export_range(0.1, 10.0, 0.05) var interaction_range: float = 2.6
 @export_range(0.1, 10.0, 0.05) var charge_duration: float = 2.0
@@ -37,6 +52,12 @@ func is_valid() -> bool:
 		and movement_speed >= 0.0
 		and roam_radius > 0.0
 		and scare_radius > 0.0
+		and _quality_multipliers_are_valid(
+			quality_movement_speed_multipliers
+		)
+		and _quality_multipliers_are_valid(
+			quality_scare_radius_multipliers
+		)
 		and capture_radius > 0.0
 		and interaction_range > 0.0
 		and charge_duration > 0.0
@@ -46,6 +67,20 @@ func is_valid() -> bool:
 	)
 
 
+func get_movement_speed_for_quality(quality: int) -> float:
+	return movement_speed * _quality_multiplier(
+		quality_movement_speed_multipliers,
+		quality,
+	)
+
+
+func get_scare_radius_for_quality(quality: int) -> float:
+	return scare_radius * _quality_multiplier(
+		quality_scare_radius_multipliers,
+		quality,
+	)
+
+
 func get_respawn_delay(reason: StringName, rng: RandomNumberGenerator) -> float:
 	var minimum_seconds: float = capture_respawn_min_seconds
 	var maximum_seconds: float = capture_respawn_max_seconds
@@ -59,3 +94,23 @@ func get_respawn_delay(reason: StringName, rng: RandomNumberGenerator) -> float:
 
 func is_available() -> bool:
 	return catch_data != null and catch_data.active and is_valid()
+
+
+func _quality_multiplier(values: Array[float], quality: int) -> float:
+	if values.size() != FishQualityType.TIER_COUNT:
+		return 1.0
+	var safe_quality: int = (
+		quality
+		if FishQualityType.is_valid(quality)
+		else FishQualityType.Tier.BORING
+	)
+	return maxf(values[safe_quality], 0.0)
+
+
+func _quality_multipliers_are_valid(values: Array[float]) -> bool:
+	if values.size() != FishQualityType.TIER_COUNT:
+		return false
+	for multiplier: float in values:
+		if not is_finite(multiplier) or multiplier <= 0.0:
+			return false
+	return true