game: add enemy mods

scenes/enemies/enemy_mod_pool.gd

@@ -0,0 +1,58 @@
+class_name EnemyModPool
+extends Resource
+
+const MAX_HEALTH_MOD: Dictionary = {
+	"mod_name": "Extra health",
+	"mod_property": "max_health",
+	"mod_value": 1.0,
+	"mod_value_bool": false,
+	"mod_type": EnemyMod.ModType.MULTIPLICATIVE,
+	"mod_adjectives":
+	[
+		"Sturdy",
+		"Bulky",
+		"Ironclad",
+		"Unyielding",
+		"Stonehide",
+		"Thicc",
+		"Chunky",
+		"Pudgy",
+		"Chonky",
+		"Double-stuffed"
+	],
+}
+
+const MOD_POOL = [
+	{
+		"mod_name": "Extra movement speed",
+		"mod_property": "move_speed",
+		"mod_value": 1.25,
+		"mod_value_bool": false,
+		"mod_type": EnemyMod.ModType.MULTIPLICATIVE,
+		"mod_adjectives": ["Swift", "Nimble", "Fleet", "Spry", "Skittering", "Zoomy", "Zippy"]
+	}
+]
+
+
+static func get_random_mods(count: int) -> Array[EnemyMod]:
+	var mods: Array[EnemyMod] = []
+	# always include extra health mod
+	var hp_mod = _dict_to_mod(MAX_HEALTH_MOD)
+	hp_mod.mod_value *= 5 * count
+	mods.append(hp_mod)
+	for i in count:
+		var mod_data = MOD_POOL.pick_random()
+		var mod = _dict_to_mod(mod_data)
+		mods.append(mod)
+	return mods
+
+
+static func _dict_to_mod(d: Dictionary) -> EnemyMod:
+	var mod: EnemyMod = EnemyMod.new()
+	mod.mod_name = d["mod_name"]
+	mod.mod_property = d["mod_property"]
+	mod.mod_value = d["mod_value"]
+	mod.mod_value_bool = d["mod_value_bool"]
+	mod.mod_type = d["mod_type"]
+	mod.adjective = d["mod_adjectives"].pick_random()
+	return mod