Make some test with terrain generator

2026-02-01 20:22:20 +01:00
parent 571605de8a
commit fe11763496
22 changed files with 1252 additions and 117 deletions
--- a/proc-terrain/terrain_control_layers.gd
+++ b/proc-terrain/terrain_control_layers.gd
@@ -0,0 +1,110 @@
+@tool
+class_name TerrainControlLayers
+extends Resource
+
+## Resource containing artist-controlled terrain layers for procedural generation.
+## Includes biome maps, height profiles, masks, and slope limits.
+
+signal layers_changed
+
+@export var resolution: Vector2i = Vector2i(512, 512):
+	set(value):
+		resolution = value
+		emit_changed()
+		layers_changed.emit()
+
+@export_group("Biome Control")
+@export var biome_map: Texture2D:
+	set(value):
+		biome_map = value
+		emit_changed()
+		layers_changed.emit()
+
+@export var height_profile: Curve:
+	set(value):
+		if height_profile and height_profile.changed.is_connected(_on_curve_changed):
+			height_profile.changed.disconnect(_on_curve_changed)
+		height_profile = value
+		if height_profile:
+			height_profile.changed.connect(_on_curve_changed)
+		emit_changed()
+		layers_changed.emit()
+
+@export_group("Slope Control")
+@export var slope_limit_map: Texture2D:
+	set(value):
+		slope_limit_map = value
+		emit_changed()
+		layers_changed.emit()
+
+@export_range(0.0, 90.0) var default_slope_limit: float = 45.0:
+	set(value):
+		default_slope_limit = value
+		emit_changed()
+		layers_changed.emit()
+
+@export_group("Mask Layers")
+@export var mask_layers: Array[Texture2D] = []:
+	set(value):
+		mask_layers = value
+		emit_changed()
+		layers_changed.emit()
+
+@export var mask_names: Array[String] = []:
+	set(value):
+		mask_names = value
+		emit_changed()
+		layers_changed.emit()
+
+
+func _on_curve_changed() -> void:
+	emit_changed()
+	layers_changed.emit()
+
+
+func get_biome_value(uv: Vector2) -> Color:
+	if not biome_map:
+		return Color.WHITE
+	var img := biome_map.get_image()
+	if not img:
+		return Color.WHITE
+	var px := clampi(int(uv.x * img.get_width()), 0, img.get_width() - 1)
+	var py := clampi(int(uv.y * img.get_height()), 0, img.get_height() - 1)
+	return img.get_pixel(px, py)
+
+
+func get_slope_limit(uv: Vector2) -> float:
+	if not slope_limit_map:
+		return default_slope_limit
+	var img := slope_limit_map.get_image()
+	if not img:
+		return default_slope_limit
+	var px := clampi(int(uv.x * img.get_width()), 0, img.get_width() - 1)
+	var py := clampi(int(uv.y * img.get_height()), 0, img.get_height() - 1)
+	return img.get_pixel(px, py).r * 90.0
+
+
+func get_height_profile_value(normalized_height: float) -> float:
+	if not height_profile:
+		return normalized_height
+	return height_profile.sample(clampf(normalized_height, 0.0, 1.0))
+
+
+func get_mask_value(mask_index: int, uv: Vector2) -> float:
+	if mask_index < 0 or mask_index >= mask_layers.size():
+		return 0.0
+	var tex := mask_layers[mask_index]
+	if not tex:
+		return 0.0
+	var img := tex.get_image()
+	if not img:
+		return 0.0
+	var px := clampi(int(uv.x * img.get_width()), 0, img.get_width() - 1)
+	var py := clampi(int(uv.y * img.get_height()), 0, img.get_height() - 1)
+	return img.get_pixel(px, py).r
+
+
+func get_mask_name(mask_index: int) -> String:
+	if mask_index < 0 or mask_index >= mask_names.size():
+		return "mask_%d" % mask_index
+	return mask_names[mask_index]