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class_name Chunk
extends Node
var chunk_size := Vector3(16, 16, 16)
@export var noise: FastNoiseLite
var blocks: Array[Block] = []
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 = Block.Type.AIR
if value > -15:
type = Block.Type.GRASS
elif value > -20:
type = Block.Type.STONE
var block = Block.new()
block.position = block_position
block.type = type
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 == Block.Type.AIR:
if block.type == Block.Type.GRASS and blocks[x].size() > y + 1 and not blocks[x][y + 1][z].type == Block.Type.AIR:
block.type = Block.Type.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 == Block.Type.AIR) or blocks[x][y].size() == z+1:
block.add_face(st, Block.Face.FRONT, block)
if (blocks.size() > x+1 and blocks[x + 1][y][z].type == Block.Type.AIR) or blocks.size() == x+1:
block.add_face(st, Block.Face.RIGHT)
if blocks[x][y].size() > z-1 and (blocks[x][y][z - 1].type == Block.Type.AIR or z == 0):
block.add_face(st, Block.Face.BACK)
if blocks.size() > x-1 and (blocks[x - 1][y][z].type == Block.Type.AIR or x == 0):
block.add_face(st, Block.Face.LEFT)
if (blocks[x].size() > y+1 and blocks[x][y + 1][z].type == Block.Type.AIR) or blocks[x].size() == y+1:
block.add_face(st, Block.Face.TOP)
if blocks[x].size() > y-1 and (blocks[x][y - 1][z].type == Block.Type.AIR or y == 0):
block.add_face(st, Block.Face.BOTTOM)
#st.generate_normals()
var mesh = MeshInstance3D.new()
mesh.mesh = st.commit()
mesh.create_trimesh_collision()
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