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class_name Block
extends Resource
const FACE_CORNERS = [
Vector2(0, 0), Vector2(1, 0),
Vector2(0, 1), Vector2(1, 1),
]
enum Face {
FRONT,
BACK,
LEFT,
RIGHT,
TOP,
BOTTOM,
}
const 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)],
],
]
const 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)],
],
]
const 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 Type {
AIR,
GRASS,
DIRT,
LEAVES,
STONE,
}
const BLOCK_TYPES = {
Type.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
],
},
Type.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
],
},
Type.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
],
},
Type.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 position: Vector3
var type: Type
func add_face(surface_tool: SurfaceTool, face: Face):
var uv2s = []
uv2s.resize(3)
uv2s.fill(BLOCK_TYPES[type].uv2s[face])
var normals = []
normals.resize(3)
normals.fill(FACE_NORMALS[face])
for idx in FACES[face].size():
var triangle = FACES[face][idx]
var triangle_positions = triangle.map(func(item):
return item + position
)
var uvs = FACE_UVS[face][idx]
surface_tool.add_triangle_fan(
PackedVector3Array(triangle_positions),
PackedVector2Array(uvs),
PackedColorArray(),
PackedVector2Array(uv2s),
PackedVector3Array(normals)
)
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