ritual/nature-sim
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Refactors grass and tree spawning for seed consistency

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Updates grass and tree spawning to use the parent's RNG,
ensuring consistent random generation based on the seed.

This removes redundant RNG instances and ensures that grass and
trees are generated predictably for a given cell.
This commit is contained in:
Dan Baker 2025-06-26 15:26:56 +01:00
parent e7337bede6
commit 33c525a3c0
2 changed files with 40 additions and 42 deletions
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41
Entities/GroundTile/scripts/trees.gd
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@ -5,21 +5,36 @@ extends Node3D
@export var min_distance: float = 0.5
var spawned_positions: Array[Vector3] = []
var parent_ground_tile: GroundTile
var rng: RandomClass = RandomClass.new()
# Remove this line: var rng: RandomClass = RandomClass.new()
func _ready():
parent_ground_tile = get_parent() as GroundTile
func spawn_trees_for_cell(cell_info: CellDataResource):
if not cell_info:
return
rng.set_seed(cell_info.cell_seed)
return
# Use parent's RNG instead of creating new one
if not parent_ground_tile or not parent_ground_tile.rng:
return
var tree_count = max(0, cell_info.trees.size())
spawn_trees(tree_count)
# Update all rng calls to use parent_ground_tile.rng:
func get_random_position() -> Vector3:
var x = parent_ground_tile.rng.randf_range(-spawn_area_size.x / 2, spawn_area_size.x / 2)
var z = parent_ground_tile.rng.randf_range(-spawn_area_size.y / 2, spawn_area_size.y / 2)
return Vector3(x, 0, z)
func spawn_tree_at_position(pos: Vector3):
var random_index = parent_ground_tile.rng.randi() % tree_scenes.size()
var random_tree_scene = tree_scenes[random_index]
var tree_instance = random_tree_scene.instantiate()
add_child(tree_instance)
tree_instance.position = pos
tree_instance.rotation.y = parent_ground_tile.rng.randf() * TAU
func spawn_trees(tree_count: int):
if tree_scenes.is_empty() or tree_count == 0:
return
@ -42,22 +57,8 @@ func spawn_trees(tree_count: int):
attempts += 1
# Rest of your functions stay the same...
func get_random_position() -> Vector3:
var x = rng.randf_range(-spawn_area_size.x / 2, spawn_area_size.x / 2)
var z = rng.randf_range(-spawn_area_size.y / 2, spawn_area_size.y / 2)
return Vector3(x, 0, z)
func is_position_valid(pos: Vector3) -> bool:
for existing_pos in spawned_positions:
if pos.distance_to(existing_pos) < min_distance:
return false
return true
func spawn_tree_at_position(pos: Vector3):
var random_index = rng.randi() % tree_scenes.size()
var random_tree_scene = tree_scenes[random_index]
var tree_instance = random_tree_scene.instantiate()
add_child(tree_instance)
tree_instance.position = pos
tree_instance.rotation.y = rng.randf() * TAU