You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
274 lines
8.5 KiB
274 lines
8.5 KiB
extends Reference
|
|
|
|
class_name WorldGeneration
|
|
|
|
export(int) var width = 2048
|
|
export(int) var height = 2048
|
|
export(int) var spacing = 20
|
|
export(int, 1, 9) var octaves = 5
|
|
export(int, 1, 30) var wavelength = 8
|
|
export(int) var border_width = 200
|
|
export(int) var terraces = 10
|
|
export(int) var terrace_height = 5
|
|
export(float) var mountain_height = 6.0 / 24.0
|
|
export(int) var river_proba = 200
|
|
|
|
var rng = RandomNumberGenerator.new()
|
|
var noise = OpenSimplexNoise.new()
|
|
|
|
func _init():
|
|
Global.loading.reset()
|
|
rng.randomize()
|
|
noise.seed = rng.randi()
|
|
noise.octaves = octaves
|
|
|
|
if Global.terrain.exists(Global.terrain_name):
|
|
Global.terrain.load(Global.terrain_name)
|
|
else:
|
|
Global.terrain.create(width,height,spacing,Global.terrain_name)
|
|
|
|
var max_step = (
|
|
Global.terrain.get_triangles().size()
|
|
# + height
|
|
)
|
|
|
|
if Global.terrain.is_created():
|
|
max_step += Global.terrain.get_points().size()
|
|
max_step += Global.terrain.get_triangles().size()
|
|
Global.loading.set_step(Global.terrain.get_points().size())
|
|
|
|
Global.loading.set_max_step(max_step)
|
|
|
|
if Global.terrain.is_created():
|
|
init_data()
|
|
Global.terrain.save()
|
|
|
|
if Global.terrain.is_created() or Global.terrain.is_loaded():
|
|
Global.terrain.set_data("mesh", create_mesh())
|
|
# create_map()
|
|
# add_trees()
|
|
# get_tree().change_scene("res://world/game.tscn")
|
|
else:
|
|
Global.print_debug("Pas de Global.terrain, pas de construction ...")
|
|
Global.print_debug("Pas de construction ..., pas de palais ...")
|
|
Global.print_debug("Pas de palais ..., pas de palais.")
|
|
|
|
Global.loading.set_end_time()
|
|
|
|
func init_data():
|
|
# for point in Global.terrain.get_points():
|
|
# point.set_elevation(point_find_elevation(point.point2d()))
|
|
# point.set_data("water", point_is_water(point))
|
|
# point.set_data("mountain", point_is_mountain(point))
|
|
# point.set_data("river", point_is_river(point))
|
|
|
|
# fill_oceans()
|
|
|
|
# for point in Global.terrain.get_points():
|
|
# if point.get_data("water") and not point.get_data("ocean"):
|
|
# point.set_elevation(0.1)
|
|
# point.set_data("water", false)
|
|
# point.set_data("coast", point_is_coast(point))
|
|
# if point.get_data("river"):
|
|
# set_river_path(point)
|
|
for triangle in Global.terrain.get_triangles():
|
|
triangle.set_elevation(find_elevation(triangle.center2d()))
|
|
# triangle.set_data("elevation", triangle_find_elevation(triangle))
|
|
triangle.set_data("water", triangle_is_water(triangle))
|
|
if not triangle.get_data("water"):
|
|
if triangle.get_elevation() < 0:
|
|
print(triangle.get_elevation())
|
|
if triangle.is_water():
|
|
triangle.set_elevation(0)
|
|
Global.loading.increment_step()
|
|
# triangle.set_data("ocean", false)
|
|
# for point in triangle.points():
|
|
# if point.get_data("ocean"):
|
|
# triangle.set_data("ocean", true)
|
|
# for edge in Global.terrain.get_edges():
|
|
# edge.set_data("coast", edge_is_coast(edge))
|
|
# edge.set_data("river", edge_is_river(edge))
|
|
|
|
func fill_oceans():
|
|
var stack = []
|
|
for point in Global.terrain.get_points():
|
|
if point.point2d().x < 10 and point.get_data("water") and not point.get_data("ocean"):
|
|
stack.append(point.get_index())
|
|
while stack.size():
|
|
var current_point_id = stack.pop_back()
|
|
Global.terrain.get_point(current_point_id).set_data("ocean", true)
|
|
for neighbour in Global.terrain.get_point(current_point_id).points_around():
|
|
if neighbour.get_data("water") and not neighbour.get_data("ocean"):
|
|
stack.append(neighbour.get_index())
|
|
break
|
|
|
|
func set_river_path(point):
|
|
#TODO #2 fix rivers
|
|
var start_elevation = point.get_elevation()
|
|
var waypoints = []
|
|
var stack = []
|
|
stack.append(point.get_index())
|
|
var came_from = {}
|
|
|
|
while stack.size():
|
|
var current_point_id = stack.pop_front()
|
|
if Global.terrain.get_point(current_point_id).get_elevation() < start_elevation:
|
|
waypoints.append(current_point_id)
|
|
start_elevation = Global.terrain.get_point(current_point_id).get_elevation()
|
|
stack = []
|
|
if Global.terrain.get_point(current_point_id).get_data("ocean"):
|
|
break
|
|
for neighbour in Global.terrain.get_point(current_point_id).points_around():
|
|
if not came_from.has(neighbour.get_index()):
|
|
stack.append(neighbour.get_index())
|
|
came_from[neighbour.get_index()] = current_point_id
|
|
|
|
var path = []
|
|
for waypoint in waypoints:
|
|
var current = waypoint
|
|
while current != point.get_index():
|
|
if not path.has(current):
|
|
path.append(current)
|
|
current = came_from[current]
|
|
|
|
path.append(point.get_index())
|
|
for index in path:
|
|
Global.terrain.get_point(index).set_data("river", true)
|
|
# Global.terrain.get_point(index).set_data("water", true)
|
|
|
|
# Point
|
|
|
|
func find_elevation(point):
|
|
|
|
# var border = border_width + rng.randf_range(-20.0, 20.0)
|
|
var elevation = noise.get_noise_2d(point.x / wavelength, point.y / wavelength)
|
|
|
|
var nx = 2 * point.x / width - 1
|
|
var ny = 2 * point.y / height - 1
|
|
|
|
var radius = range_lerp(elevation, -1, 1, 0.8, 1.0)
|
|
|
|
var distance = 1 - (1-pow(nx, 2)) * (1-pow(ny,2))
|
|
distance = sqrt(pow(nx, 2) + pow(ny, 2))
|
|
if distance > radius:
|
|
elevation = (elevation - range_lerp(distance, radius, 1.0, 0.0, 1.0))
|
|
|
|
elevation = max(elevation, -1)
|
|
|
|
if elevation > 0.1:
|
|
elevation = max(pow((elevation) * 1.2, 1.5), 0.1)
|
|
|
|
elevation = min(elevation, 1)
|
|
|
|
elevation = round(elevation * terraces) / terraces
|
|
return elevation
|
|
|
|
func point_is_water(point):
|
|
if (point.get_elevation() < 0):
|
|
return true
|
|
return false
|
|
|
|
func point_is_mountain(point):
|
|
if (point.get_elevation() >= mountain_height):
|
|
return true
|
|
return false
|
|
|
|
func point_is_coast(point):
|
|
if not point.get_data("water"):
|
|
for neighbour in point.points_around():
|
|
if neighbour.get_data("ocean"):
|
|
return true
|
|
return false
|
|
|
|
func point_is_river(point):
|
|
if point.get_data("mountain") and not point.get_data("river"):
|
|
var random = rng.randi_range(1, river_proba)
|
|
if random == 1:
|
|
return true
|
|
return false
|
|
|
|
# Triangle
|
|
|
|
func triangle_find_elevation(triangle):
|
|
var elevation = 0
|
|
for point in triangle.points():
|
|
elevation += point.get_elevation()
|
|
elevation /= 3.0
|
|
return elevation
|
|
|
|
func triangle_is_water(triangle):
|
|
if triangle.get_elevation() <= 0.0:
|
|
return true
|
|
return false
|
|
|
|
# Edge
|
|
|
|
func edge_is_coast(edge):
|
|
if edge.start().get_data("coast") and edge.end().get_data("coast") and edge.triangle().get_data("ocean"):
|
|
return true
|
|
return false
|
|
|
|
func edge_is_river(edge):
|
|
if edge.start().get_data("river") and edge.end().get_data("river"):
|
|
return true
|
|
return false
|
|
|
|
# func add_trees():
|
|
# rng.randomize()
|
|
# var treescene = load("res://entities/environment/birchtree/birchtree.tscn")
|
|
# for triangle in Global.terrain.get_triangles():
|
|
# if not triangle.get_data("water"):
|
|
# var num = rng.randi_range(0, 5)
|
|
# if num == 1:
|
|
# var tree = treescene.instance()
|
|
# tree.translation = Vector3(triangle.center3d() * Vector3(1, 12*10, 1))
|
|
# add_child(tree)
|
|
|
|
func create_mesh():
|
|
var st = SurfaceTool.new()
|
|
|
|
st.begin(Mesh.PRIMITIVE_TRIANGLES)
|
|
for triangle in Global.terrain.get_triangles():
|
|
if not triangle.is_water():
|
|
if triangle.get_elevation() < 0:
|
|
print(triangle.get_elevation())
|
|
var factor = Vector3(1, 120, 1)
|
|
for edge in triangle.edges():
|
|
if triangle.get_elevation() > edge.opposite_triangle().get_elevation():
|
|
st.add_vertex(Vector3(edge.start().point3d().x, triangle.get_elevation(), edge.start().point3d().z) * factor)
|
|
st.add_vertex(Vector3(edge.end().point3d().x, triangle.get_elevation(), edge.end().point3d().z) * factor)
|
|
st.add_vertex(Vector3(edge.start().point3d().x, edge.opposite_triangle().get_elevation(), edge.start().point3d().z) * factor)
|
|
|
|
st.add_vertex(Vector3(edge.end().point3d().x, triangle.get_elevation(), edge.end().point3d().z) * factor)
|
|
st.add_vertex(Vector3(edge.end().point3d().x, edge.opposite_triangle().get_elevation(), edge.end().point3d().z) * factor)
|
|
st.add_vertex(Vector3(edge.start().point3d().x, edge.opposite_triangle().get_elevation(), edge.start().point3d().z) * factor)
|
|
|
|
for point in triangle.points():
|
|
st.add_vertex(Vector3(point.point3d().x, triangle.get_elevation(), point.point3d().z) * factor)
|
|
Global.loading.increment_step()
|
|
|
|
st.generate_normals()
|
|
st.generate_tangents()
|
|
st.index()
|
|
|
|
var mi = MeshInstance.new()
|
|
mi.mesh = st.commit()
|
|
var material = load("res://world/world.material")
|
|
mi.set_surface_material(0, material)
|
|
mi.create_convex_collision()
|
|
mi.cast_shadow = GeometryInstance.SHADOW_CASTING_SETTING_ON
|
|
return mi
|
|
|
|
# Enregistrement de la map + intégration dans la génération du monde #32
|
|
|
|
func create_map():
|
|
var img = Image.new()
|
|
img.create(width, height, false, Image.FORMAT_RGBA8)
|
|
img.lock()
|
|
|
|
for y in height:
|
|
Global.loading.increment_step()
|
|
for x in width:
|
|
img.set_pixel(x,y,Color(randf(), randf(), randf()))
|
|
|
|
img.unlock()
|
|
|