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draw_utils.py
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draw_utils.py
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import os
os.environ['PYGAME_HIDE_SUPPORT_PROMPT'] = "hide"
import math
import numpy as np
import pygame
_pi = math.pi
_pi_2 = math.pi * 2
SHADE_TINT = 0.3
LIGHT_TINT = 0.2
FOREGROUND_DARK_TINT = 0.5
COLOR_BACKGROUND = (90, 87, 85)
COLOR_GRID = (120, 120, 120)
COLOR_GRID_CELL = (140, 140, 140)
COLOR_DEFAULT = (110, 100, 100)
COLOR_TRASPARENT = (110, 110, 120)
COLOR_BORDER = (230, 220, 230)
COLOR_FOREGROUND = (152, 168, 152)
COLOR_FOREGROUND_LIGHT = (193, 214, 193)
COLOR_FOREGROUND_DARK = (113, 124, 113)
COLOR_WHITE = (255, 255, 255)
COLOR_BLACK = (0, 0, 0)
COLOR_FILE_SELECTION = (22, 12, 33)
COLOR_FILE_VIEWER = (215, 214, 212)
COLOR_FILE_VIEWER_FONT = (10, 10, 10)
get_ticks = pygame.time.get_ticks
def cuteoh(sprite_surf, chunk_size=6):
subrects = []
rect = sprite_surf.get_bounding_rect()
h_subdivs = rect.width // chunk_size
v_subdivs = rect.height // chunk_size
cell_w = chunk_size
cell_h = chunk_size
for row in range(v_subdivs):
for col in range(h_subdivs):
x = col*cell_w
y = row*cell_h
ss = sprite_surf.subsurface((x, y, cell_w, cell_h))
s_rect = ss.get_bounding_rect()
if not all(s_rect[2:]):
continue
subrects.append( (s_rect, (x, y), ss) )
return subrects
KERNEL_CACHE = {}
# Ghost at #pygame-community
def get_2d_blur_kernel(size, std_dev=0.1):
size = int(size)
if size not in KERNEL_CACHE:
# mmm delicious math
x_vals = [((i 0.5) - size / 2) / (size / 2) for i in range(size)]
KERNEL_CACHE[size] = numpy.array([1 / math.sqrt(2*math.pi*std_dev)*math.exp(-0.5*x**2/std_dev) for x in x_vals])
return KERNEL_CACHE[size]
# Ghost at #pygame-community
def blur(array, kernel_size):
kernel = get_2d_blur_kernel(kernel_size)
# yoinked from https://stackoverflow.com/a/65804973
array = numpy.apply_along_axis(lambda x: numpy.convolve(x, kernel, mode='same'), 0, array)
array = numpy.apply_along_axis(lambda x: numpy.convolve(x, kernel, mode='same'), 1, array)
return array
def get_casting_point(ln1, ln2):
# the raycasting code by Emc2356
# https://github.com/Emc2356/Visualizations/blob/main/RayCasting.py
[x1, y1], [x2, y2] = ln1
[x3, y3], [x4, y4] = ln2
den = (x1 - x2) * (y3 - y4) - (y1 - y2) * (x3 - x4)
if den == 0: # line are parallel and they will never meet even if you stretch them out infinitely
return
t = ((x1 - x3) * (y3 - y4) - (y1 - y3) * (x3 - x4)) / den
u = -((x1 - x2) * (y1 - y3) - (y1 - y2) * (x1 - x3)) / den
if t > 0 and t < 1 and u > 0:
return pygame.math.Vector2(
x1 t * (x2 - x1),
y1 t * (y2 - y1)
)
else:
return
#dist
#The first one is easy. If pos1 and pos2 are vectors, just subtract them
#angle
def measure_angle_vec(vec1, vec2):
return (vec2 - vec1).as_polar()[0]
# def get_casting_point(self, wall):
# x1 = wall.a.x
# y1 = wall.a.y
# x2 = wall.b.x
# y2 = wall.b.y
# x3 = self.pos.x
# y3 = self.pos.y
# x4 = self.pos.x self.dir.x
# y4 = self.pos.y self.dir.y
# den = (x1 - x2) * (y3 - y4) - (y1 - y2) * (x3 - x4)
# if den == 0: # line are parallel and they will never meet even if you stretch them out infinitely
# return
# t = ((x1 - x3) * (y3 - y4) - (y1 - y3) * (x3 - x4)) / den
# u = -((x1 - x2) * (y1 - y3) - (y1 - y2) * (x1 - x3)) / den
# if t > 0 and t < 1 and u > 0:
# return pygame.math.Vector2(
# x1 t * (x2 - x1),
# y1 t * (y2 - y1)
# )
# else:
# return
# def intersect(line_1, line_2):
# x3, y3, x4, y4 = self.pos.x, self.pos.y, self.pos.x self.dir.x, self.pos.y self.dir.y
# x1, y1, x2, y2 = wall.a.x, wall.a.y, wall.b.x, wall.b.y
# if den == 0: # line are parallel and they will never meet even if you stretch them out infinitely
# continue
# t = ((x1 - x3) * (y3 - y4) - (y1 - y3) * (x3 - x4)) / den
# u = -((x1 - x2) * (y1 - y3) - (y1 - y2) * (x1 - x3)) / den
# # if you want for 2 line segements you need to do u > 0 and u < 1 the u > 0 is for infinitely long line
# if t > 0 and t < 1 and u > 0:
# intersect_point = pygame.math.Vector2(x1 t * (x2 - x1), y1 t * (y2 - y1))
def make_matrix(roll, pitch, heading, x0, y0, z0):
a = math.radians(roll)
b = math.radians(pitch)
g = math.radians(heading)
T = np.array([[ math.cos(b)*math.cos(g), (math.sin(a)*math.sin(b)*math.cos(g)
math.cos(a)*math.sin(g)), (math.sin(a)*math.sin(g) -
math.cos(a)*math.sin(b)*math.cos(g)), x0],
[-math.cos(b)*math.sin(g), (math.cos(a)*math.cos(g) -
math.sin(a)*math.sin(b)*math.sin(g)), (math.sin(a)*math.cos(g)
math.cos(a)*math.sin(b)*math.sin(g)), y0],
[ math.sin(b), -math.sin(a)*math.cos(b), math.cos(a)*math.cos(b), z0],
[ 0, 0, 0, 1]])
return T
def project25d(wx, wy, wz, win_width, win_height, fov=90.0, viewer_distance=0):
""" Transforms this 3D point to 2D using a perspective projection. """
factor = fov / (viewer_distance wz)
x = wx * factor win_width / 2
y = wy * factor win_height / 2
return int(x), int(y)
def project25dAlt(wx, wy, wz, win_width, win_height, worldScale = 1.0):
""" Project 3d coords into 2d plane (screen)
"""
## I used the idea and the algorythm at:
## http://www.inversereality.org/tutorials/graphics programming/3dprojection.html
if wz == 0:
OneOverZ = 0
else:
OneOverZ = 1.0 / float(wz)
sx = (wx * worldScale * OneOverZ) win_width / 2
sy = (wy * worldScale * OneOverZ) win_height / 2
return int(sx), int(sy)
def clip(val, n, m):
return min(m, max(n, val))
def measure_angle(x, y):
return 180 - math.degrees( math.arctan2(x, y) )
def measure_angle_xy(point1, point2):
x1, y1 = point1
x2, y2 = point2
return 180 - math.degrees( math.atan2(x2 - x1, y2 - y1) )
def rotate(vector_length, angle):
new_x = vector_length * math.cos(math.radians(angle))
new_y = vector_length * math.sin(math.radians(angle))
return (new_x, new_y)
# Angle = math.atan2(player.y-self.rect.y, player.x-self.rect.x)
# Angle = (math.cos(Angle) * self.speed, math.sin(Angle) * self.speed)
def pivot_rotation(surf, pivot_x, pivot_y, angle):
""" rotate pygame surface surf along specified pivot
"""
sprite_w, sprite_h = surf.get_size()
centerx = 0
centery = 0
pivot_c_x = pivot_x - sprite_w // 2
pivot_c_y = pivot_y - sprite_h // 2
new_center_x = centerx pivot_c_x
new_center_y = centery pivot_c_y
c_off_x, c_off_y = rotate(pivot_c_x, angle)
new_center_x = c_off_x
new_center_y = c_off_y
muzzle = pygame.transform.rotate(surf, 180-angle)
m_size = muzzle.get_size()
new_x = new_center_x - m_size[0]//2 - pivot_c_x
new_y = new_center_y - m_size[1]//2 - pivot_c_y
return new_x, new_y, muzzle
def darker(color, amount):
if isinstance(amount, int):
return tuple(clip((c-amount), 0, 255) for c in color)
elif isinstance(amount, float):
return tuple(clip(int(c - c*amount), 0, 255) for c in color)
raise ValueError("amount should be int or float")
def brighter(color, amount):
if isinstance(amount, int):
return tuple(clip(c amount,0,255) for c in color)
elif isinstance(amount, float):
return tuple(clip(int(c c*amount),0,255) for c in color)
raise ValueError("amount should be int or float")
def pulse(range_, freq, shift=0.0):
secs = math.degrees(shift * _pi_2) 90 - (((get_ticks()00)/2.77)*freq) % 360
return (1 - math.sin( math.radians(secs) ) ) * range_/2
def draw_line2(surf, coord1, coord2, xoff=0, yoff=0):
x1, y1 = coord1
x2, y2 = coord2
pygame.draw.line(surf, (244, 233, 254), (x1 xoff, y1 yoff), (x2 xoff, y2 yoff))
pygame.draw.circle(surf, (244, 233, 254), (x1 xoff, y1 yoff), 2)
def blur(a):
""" experimental, blurs an numpy array a """
kernel = np.array([[1.0,2.0,1.0], [2.0,4.0,2.0], [1.0,2.0,1.0]])
kernel = kernel / np.sum(kernel)
arraylist = []
for y in range(3):
temparray = np.copy(a)
temparray = np.roll(temparray, y - 1, axis=0)
for x in range(3):
temparray_X = np.copy(temparray)
temparray_X = np.roll(temparray_X, x - 1, axis=1)*kernel[y,x]
arraylist.append(temparray_X)
arraylist = np.array(arraylist)
arraylist_sum = np.sum(arraylist, axis=0)
return arraylist_sum
def draw_shaded_frame(surf, x, y, width, height, shade_color=None, light_color=None, mode=0):
""" draw a shaded frame (no middle)
used to draw many controls
"""
if shade_color is None:
shade_color = COLOR_FOREGROUND_DARK
if light_color is None:
light_color = COLOR_FOREGROUND_LIGHT
right = width x
bottom = height y
if mode & 1:
shade_color, light_color = light_color, shade_color
pygame.draw.line(surf, light_color, (x 1, y), (right, y))
pygame.draw.line(surf, darker(light_color, 0.1), (right, y), (right, bottom-1))
pygame.draw.line(surf, shade_color, (x, bottom), (right-1, bottom))
pygame.draw.line(surf, darker(shade_color, 0.1), (x, y 1), (x, bottom))
if mode & 1:
pygame.draw.line(surf, brighter(light_color, 0.25), (x, y), (x, y))
pygame.draw.line(surf, brighter(light_color, 0.3), (right, bottom), (right, bottom))
else:
pygame.draw.line(surf, darker(light_color, 0.25), (x, y), (x, y))
pygame.draw.line(surf, darker(light_color, 0.3), (right, bottom), (right, bottom))
def draw_panel(surf, x, y, width, height, color, shade_color=None, light_color=None, mode=0, no_middle=False):
if shade_color is None:
shade_color = darker(color, SHADE_TINT)
if light_color is None:
light_color = brighter(color, LIGHT_TINT)
if mode & 2:
color = darker(color, FOREGROUND_DARK_TINT)
if not no_middle:
pygame.draw.rect(surf, color, (x, y, width, height))
draw_shaded_frame(surf, x, y, width, height, shade_color, light_color, mode=mode)
def flood_fill(surf, f_x, f_y, color):
""" fill surface surf with specified color at f_x, f_y
"""
pixels = pygame.PixelArray(surf)
width, height = surf.get_size()
test_color = pixels[f_x, f_y]
color = pygame.Color(color)
color = (color.r, color.g, color.b)
stack = []
stack.append((f_x, f_y))
while len(stack):
x, y = stack.pop()
if x < 0 or y < 0 or x >= width or y >= height:
continue
c_color = pixels[x, y]
if pygame.Color(c_color)[1:]==color:
continue
if test_color==c_color:
pixels[x, y] = color
else:
continue
stack.append((x 1, y)) # right
stack.append((x - 1, y)) # left
stack.append((x, y 1)) # down
stack.append((x, y - 1)) # up
angle = 45
def test():
v= pygame.Vector2(10,0)
v.rotate_ip(angle)
#rotate(10,angle)
if __name__ == '__main__':
#import timeit
#print(timeit.timeit("test()", globals=globals(), number=100000))
# print(get_casting_point([[0, 0], [50, 50]], [[50, 0], [0, 50]]))
# player_x = 40
# player_y = 50
# rect_x = 400
# rect_y = 300
# speed = 2
# angle = math.atan2(player_y-rect_y, player_x-rect_x)
# move_x, move_y = (math.cos(angle) * speed, math.sin(angle) * speed)
# print('angle:', angle, math.degrees(angle), move_x, move_y)
# #Angle = (math.cos(Angle) * self.speed, math.sin(Angle) * self.speed)
angle = 45
v= pygame.Vector2(10,0).rotate(angle)
print( v )
#print( type(v (10, 10)))
#print( rotate(10,angle) )