76 lines
1.8 KiB
GDScript
76 lines
1.8 KiB
GDScript
class_name EnemyGenerator
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extends Node
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enum EnemyType {
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Small,
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Medium,
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Heavy,
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}
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const ENEMY_TYPES : Array[EnemyType] = [
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EnemyType.Small,
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EnemyType.Medium,
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EnemyType.Heavy,
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]
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const ENEMY_CHANCES : Array[int] = [
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45,
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35,
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20,
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]
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const ENEMY_SCENES : Dictionary[EnemyType, String] = {
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EnemyType.Small: "res://game/entities/ships/enemies/small/small_enemy_ship.tscn",
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EnemyType.Medium: "res://game/entities/ships/enemies/medium/medium_enemy_ship.tscn",
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EnemyType.Heavy: "res://game/entities/ships/enemies/heavy/heavy_enemy_ship.tscn",
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}
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const ENEMY_MAX_WEAPON_COUNT : Dictionary[EnemyType, int] = {
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EnemyType.Small: 1,
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EnemyType.Medium: 2,
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EnemyType.Heavy: 3,
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}
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var local_seed_rng : RandomNumberGenerator = RandomNumberGenerator.new()
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var spawn_rng : RandomNumberGenerator = RandomNumberGenerator.new()
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var type_rng : RandomNumberGenerator = RandomNumberGenerator.new()
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var weapon_rng : RandomNumberGenerator = RandomNumberGenerator.new()
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func generate(seed_value: int) -> EnemyData:
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local_seed_rng.seed = seed_value
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spawn_rng.seed = local_seed_rng.randi()
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type_rng.seed = local_seed_rng.randi()
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weapon_rng.seed = local_seed_rng.randi()
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var type := _get_enemy_type()
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var data : EnemyData = EnemyData.new()
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data.seed_value = seed_value
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_full_spawn(data)
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_full_scene(data, type)
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_full_weapon(data, type)
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return data
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func _get_enemy_type() -> EnemyType:
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var index := type_rng.rand_weighted(ENEMY_CHANCES)
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return ENEMY_TYPES[index]
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func _full_spawn(data: EnemyData) -> void:
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data.spawn_point.x = 710
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data.spawn_point.y = spawn_rng.randf_range(0.0, 360.0)
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func _full_scene(data: EnemyData, type: EnemyType) -> void:
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data.enemy_scene = ENEMY_SCENES[type]
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func _full_weapon(data: EnemyData, type: EnemyType) -> void:
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data.weapon_count = weapon_rng.randi_range(1, ENEMY_MAX_WEAPON_COUNT[type])
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