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class_name Main
extends Node3D
var chunk_size := Vector3(16, 16, 16)
@onready var noise := FastNoiseLite.new()
var face_corners = [
Vector2(0, 0), Vector2(1, 0),
Vector2(0, 1), Vector2(1, 1),
]
enum BlockFace {
FRONT,
BACK,
LEFT,
RIGHT,
TOP,
BOTTOM,
}
var block_faces = [
[ # FRONT
[Vector3(-1.0, 1.0, 1.0), Vector3(1.0, -1.0, 1.0), Vector3(-1.0, -1.0, 1.0)],
[Vector3(-1.0, 1.0, 1.0), Vector3(1.0, 1.0, 1.0), Vector3(1.0, -1.0, 1.0)],
],
[ # BACK
[Vector3(1.0, 1.0, -1.0), Vector3(-1.0, -1.0, -1.0), Vector3(1.0, -1.0, -1.0)],
[Vector3(1.0, 1.0, -1.0), Vector3(-1.0, 1.0, -1.0), Vector3(-1.0, -1.0, -1.0)],
],
[ # LEFT
[Vector3(-1.0, 1.0, -1.0), Vector3(-1.0, -1.0, 1.0), Vector3(-1.0, -1.0, -1.0)],
[Vector3(-1.0, 1.0, -1.0), Vector3(-1.0, 1.0, 1.0), Vector3(-1.0, -1.0, 1.0)],
],
[ # RIGHT
[Vector3(1.0, 1.0, 1.0), Vector3(1.0, -1.0, -1.0), Vector3(1.0, -1.0, 1.0)],
[Vector3(1.0, 1.0, 1.0), Vector3(1.0, 1.0, -1.0), Vector3(1.0, -1.0, -1.0)],
],
[ # TOP
[Vector3(-1.0, 1.0, -1.0), Vector3(1.0, 1.0, 1.0), Vector3(-1.0, 1.0, 1.0)],
[Vector3(-1.0, 1.0, -1.0), Vector3(1.0, 1.0, -1.0), Vector3(1.0, 1.0, 1.0)],
],
[ # BOTTOM
[Vector3(-1.0, -1.0, 1.0), Vector3(1.0, -1.0, -1.0), Vector3(-1.0, -1.0, -1.0)],
[Vector3(-1.0, -1.0, 1.0), Vector3(1.0, -1.0, 1.0), Vector3(1.0, -1.0, -1.0)],
],
]
var block_face_uvs = [
[ # FRONT
[Vector2(0.0, 0.0), Vector2(1.0, 1.0), Vector2(0.0, 1.0)],
[Vector2(0.0, 0.0), Vector2(1.0, 0.0), Vector2(1.0, 1.0)],
],
[ # BACK
[Vector2(0.0, 0.0), Vector2(1.0, 1.0), Vector2(0.0, 1.0)],
[Vector2(0.0, 0.0), Vector2(1.0, 0.0), Vector2(1.0, 1.0)],
],
[ # LEFT
[Vector2(0.0, 0.0), Vector2(1.0, 1.0), Vector2(0.0, 1.0)],
[Vector2(0.0, 0.0), Vector2(1.0, 0.0), Vector2(1.0, 1.0)],
],
[ # RIGHT
[Vector2(0.0, 0.0), Vector2(1.0, 1.0), Vector2(0.0, 1.0)],
[Vector2(0.0, 0.0), Vector2(1.0, 0.0), Vector2(1.0, 1.0)],
],
[ # TOP
[Vector2(0.0, 1.0), Vector2(1.0, 2.0), Vector2(0.0, 2.0)],
[Vector2(0.0, 1.0), Vector2(1.0, 1.0), Vector2(1.0, 2.0)],
],
[ # BOTTOM
[Vector2(1.0, 0.0), Vector2(2.0, 1.0), Vector2(1.0, 1.0)],
[Vector2(1.0, 0.0), Vector2(2.0, 0.0), Vector2(2.0, 1.0)],
],
]
var block_face_normals = [
Vector3(0, 0, 1), # FRONT
Vector3(0, 0, -1), # BACK
Vector3(-1, 0, 0), # LEFT
Vector3(1, 0, 0), # RIGHT
Vector3(0, 1, 0), # TOP
Vector3(0, -1, 0), # BOTTOM
]
enum BlockType {
AIR,
GRASS,
DIRT,
LEAVES,
STONE,
}
var block_types = {
BlockType.GRASS: {
"uv2s": [
Vector2(0, 0), # FRONT
Vector2(0, 0), # BACK
Vector2(0, 0), # LEFT
Vector2(0, 0), # RIGHT
Vector2(0, 1), # TOP
Vector2(1, 0), # BOTTOM
],
},
BlockType.DIRT: {
"uv2s": [
Vector2(1, 0), # FRONT
Vector2(1, 0), # BACK
Vector2(1, 0), # LEFT
Vector2(1, 0), # RIGHT
Vector2(1, 0), # TOP
Vector2(1, 0), # BOTTOM
],
},
BlockType.LEAVES: {
"uv2s": [
Vector2(2, 2), # FRONT
Vector2(2, 2), # BACK
Vector2(2, 2), # LEFT
Vector2(2, 2), # RIGHT
Vector2(2, 2), # TOP
Vector2(2, 2), # BOTTOM
],
},
BlockType.STONE: {
"uv2s": [
Vector2(2, 0), # FRONT
Vector2(2, 0), # BACK
Vector2(2, 0), # LEFT
Vector2(2, 0), # RIGHT
Vector2(2, 0), # TOP
Vector2(2, 0), # BOTTOM
],
},
}
var chunks := []
func _ready() -> void:
brrr()
class OtherThread extends Thread:
func _exit_tree():
wait_to_finish()
func brrr():
noise.seed = randi()
var thread = OtherThread.new()
var rrrb = func():
for row in range(0, 8):
chunks.append([])
for column in range(0, 4):
chunks[row].append([])
for depth in range(0, 8):
chunks[row][column].append([])
generate_chunk(row, column, depth)
thread.start(rrrb)
#thread.wait_to_finish()
func generate_chunk(row, column, depth):
#var material := StandardMaterial3D.new()
#material.albedo_texture = preload("res://new_atlas_texture.tres")
#material.vertex_color_use_as_albedo = true
var material := preload("res://new_shader_material.tres")
var st = SurfaceTool.new()
st.begin(Mesh.PRIMITIVE_TRIANGLES)
st.set_material(material)
var blocks = []
for x in chunk_size.x:
#blocks[x] = []
blocks.append([])
for y in chunk_size.y:
#blocks[x][y] = []
blocks[x].append([])
for z in chunk_size.z:
var block_position = Vector3(
row*chunk_size.x + x,
column*chunk_size.y + y,
depth*chunk_size.z + z
#x,
#y,
#z
) * 2
var value = noise.get_noise_3d(block_position.x, block_position.y, block_position.z) * 100
var type = BlockType.AIR
if value > -15:
type = BlockType.GRASS
elif value > -20:
type = BlockType.STONE
var block = {
"position": block_position,
"type": type,
}
#blocks[x][y][z] = block_position
blocks[x][y].append(block)
for x in blocks.size():
for y in blocks[x].size():
for z in blocks[x][y].size():
var block = blocks[x][y][z]
var block_position = block.position
if not block.type == BlockType.AIR:
if block.type == BlockType.GRASS and blocks[x].size() > y + 1 and not blocks[x][y + 1][z].type == BlockType.AIR:
block.type = BlockType.DIRT
var rng = RandomNumberGenerator.new()
rng.seed = randi()
st.set_color(Color(rng.randf(), rng.randf(), rng.randf()))
st.set_uv(Vector2(0, 0))
if (blocks[x][y].size() > z+1 and blocks[x][y][z + 1].type == BlockType.AIR) or blocks[x][y].size() == z+1:
add_face(st, BlockFace.FRONT, block)
if (blocks.size() > x+1 and blocks[x + 1][y][z].type == BlockType.AIR) or blocks.size() == x+1:
add_face(st, BlockFace.RIGHT, block)
if blocks[x][y].size() > z-1 and (blocks[x][y][z - 1].type == BlockType.AIR or z == 0):
add_face(st, BlockFace.BACK, block)
if blocks.size() > x-1 and (blocks[x - 1][y][z].type == BlockType.AIR or x == 0):
add_face(st, BlockFace.LEFT, block)
if (blocks[x].size() > y+1 and blocks[x][y + 1][z].type == BlockType.AIR) or blocks[x].size() == y+1:
add_face(st, BlockFace.TOP, block)
if blocks[x].size() > y-1 and (blocks[x][y - 1][z].type == BlockType.AIR or y == 0):
add_face(st, BlockFace.BOTTOM, block)
chunks[row][column][depth] = blocks
#st.generate_normals()
var mesh = MeshInstance3D.new()
mesh.mesh = st.commit()
mesh.create_trimesh_collision()
add_child.call_deferred(mesh)
# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(_delta: float) -> void:
pass
func add_face(surface_tool: SurfaceTool, face: BlockFace, block: Dictionary):
var block_position: Vector3 = block.position
var type: BlockType = block.type
var uv2s = []
uv2s.resize(3)
uv2s.fill(block_types[type].uv2s[face])
var normals = []
normals.resize(3)
normals.fill(block_face_normals[face])
for idx in block_faces[face].size():
var triangle = block_faces[face][idx]
var triangle_positions = triangle.map(func(item):
return item + block_position
)
var uvs = block_face_uvs[face][idx]
surface_tool.add_triangle_fan(
PackedVector3Array(triangle_positions),
PackedVector2Array(uvs),
PackedColorArray(),
PackedVector2Array(uv2s),
PackedVector3Array(normals)
)
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