game/terrain/terrain_instance_3d.gd

170 lines
2.6 KiB
GDScript

@tool
class_name TerrainInstance3D extends GeometryInstance3D
const _DETAIL := 2
var _mesh := PlaneMesh.new()
var _material := ShaderMaterial.new()
##
##
##
@export
var size: Vector2i = Vector2i.ZERO:
get:
return size
set(value):
var width := maxi(value.x, 0)
var height := maxi(value.y, 0)
if (width != size.x) or (height != size.y):
if (width == 0) and (height == 0):
RenderingServer.instance_set_base(self.get_instance(), RID())
else:
self._mesh.subdivide_width = width * _DETAIL
self._mesh.subdivide_depth = height * _DETAIL
self._mesh.size = value
self._material.set_shader_parameter("SIZE", Vector2(value))
RenderingServer.instance_set_base(self.get_instance(), self._mesh)
size = value
##
##
##
@export
var albedo_map: Texture2D = null:
get:
return albedo_map
set(value):
self._material.set_shader_parameter("ALBEDO_MAP_0", value)
albedo_map = value
##
##
##
@export
var albedo_map_b: Texture2D = null:
get:
return albedo_map_b
set(value):
self._material.set_shader_parameter("ALBEDO_MAP_B", value)
albedo_map_b = value
##
##
##
@export
var albedo_map_g: Texture2D = null:
get:
return albedo_map_g
set(value):
self._material.set_shader_parameter("ALBEDO_MAP_G", value)
albedo_map_g = value
##
##
##
@export
var albedo_map_r: Texture2D = null:
get:
return albedo_map_r
set(value):
self._material.set_shader_parameter("ALBEDO_MAP_R", value)
albedo_map_r = value
##
##
##
@export
var normal_map: Texture2D = null:
get:
return normal_map
set(value):
self._material.set_shader_parameter("NORMAL_MAP_0", value)
normal_map = value
##
##
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@export
var normal_map_b: Texture2D = null:
get:
return normal_map_b
set(value):
self._material.set_shader_parameter("NORMAL_MAP_B", value)
normal_map_b = value
##
##
##
@export
var normal_map_g: Texture2D = null:
get:
return normal_map_g
set(value):
self._material.set_shader_parameter("NORMAL_MAP_G", value)
normal_map_g = value
##
##
##
@export
var normal_map_r: Texture2D = null:
get:
return normal_map_r
set(value):
self._material.set_shader_parameter("NORMAL_MAP_R", value)
normal_map_r = value
##
##
##
@export
var terrain_map: Texture2D = null:
get:
return terrain_map
set(value):
self._material.set_shader_parameter("TERRAIN_MAP", value)
terrain_map = value
##
##
##
@export
var max_height := 100.0:
get:
return max_height
set(value):
self._material.set_shader_parameter("MAX_HEIGHT", value)
max_height = max(value, 0.0)
func _init() -> void:
self._material.shader = preload("res://terrain/terrain_shader.gdshader")
self._mesh.surface_set_material(0, self._material)