pandemonium_engine/modules/paint/BrushPrefabs.gd

107 lines
2.0 KiB
GDScript

class_name BrushPrefabs
const list = [
[ Vector2(0, -1),
Vector2(-1, 0), Vector2(0, 0), Vector2(1, 0),
Vector2(0, 1)
],
[Vector2(-1, -1), Vector2(0, -1), Vector2(1, -1),
Vector2(-1, 0), Vector2(0, 0), Vector2(1, 0),
Vector2(-1, 1), Vector2(0, 1), Vector2(1, 1),
],
[
Vector2(-1, 0), Vector2(0, 0), Vector2(1, 0),
],
[ Vector2(0, -1),
Vector2(0, 0),
Vector2(0, 1)
]
]
enum Type {
V_LINE,
H_LINE,
RECT,
CIRCLE,
}
static func get_brush(type, size: int):
var pixels = []
if size < 1:
size = 1
match type:
Type.CIRCLE:
size += 1
var center = Vector2.ZERO
var last = center
var radius = size / 2.0
for x in range(size):
for y in range(size):
if Vector2(x - radius, y - radius).length() < size / 3.0:
pixels.append(Vector2(x, y))
var avg = Vector2(size / 2, size / 2)
avg = Vector2(floor(avg.x), floor(avg.y))
for i in range(pixels.size()):
pixels[i] -= avg
Type.RECT:
var center = Vector2.ZERO
var last = center
for x in range(size):
for y in range(size):
pixels.append(Vector2(x, y))
var avg = Vector2.ZERO
for cell in pixels:
avg += cell
avg.x /= pixels.size()
avg.y /= pixels.size()
avg = Vector2(floor(avg.x), floor(avg.y))
for i in range(pixels.size()):
pixels[i] -= avg
Type.V_LINE:
var center = Vector2.ZERO
var last = center
pixels.append(Vector2.ZERO)
for i in range(size - 1):
var sig = sign(last.y)
if sig == 0:
sig = 1
if last.y < 0:
center.y = abs(last.y) * -sig
else:
center.y = abs(last.y+1) * -sig
last = center
pixels.append(center)
Type.H_LINE:
var center = Vector2.ZERO
var last = center
pixels.append(Vector2.ZERO)
for i in range(size - 1):
var sig = sign(last.x)
if sig == 0:
sig = 1
if last.x < 0:
center.x = abs(last.x) * -sig
else:
center.x = abs(last.x+1) * -sig
last = center
pixels.append(center)
return pixels