def draw_text(canvas: CANVAS, txt: str, color: (int, int, int), pos: (int, int), size: int) -> None:
ctx = canvas.getContext("2d")
x, y = pos
ctx.fillStyle = "rgb" + str(color)
ctx.font = str(size) + "px sans-serif";
ctx.textBaseline = "top";
ctx.fillText(txt, x, y)
def image_blit(canvas: CANVAS, image: IMG, pos: (int, int), area: (int, int, int, int)=None) -> None:
ctx = canvas.getContext("2d")
x, y = pos
if area:
ax, ay, aw, ah = area
ctx.drawImage(image, ax, ay, aw, ah, x, y, aw, ah)
else:
ctx.drawImage(image, x, y)
def draw_line(canvas: CANVAS, color: (int, int, int), pt1: (int, int), pt2: (int, int)) -> None:
ctx = canvas.getContext("2d")
x1, y1 = pt1
x2, y2 = pt2
ctx.strokeStyle = "rgb" + str(color)
ctx.moveTo(x1, y1)
ctx.lineTo(x2, y2)
ctx.stroke()
def draw_circle(canvas: CANVAS, color: (int, int, int), center: (int, int), radius: int) -> None:
from math import pi
ctx = canvas.getContext("2d")
x, y = center
ctx.fillStyle = "rgb" + str(color)
ctx.beginPath()
ctx.arc(x, y, radius, 0, 2 * pi)
ctx.closePath()
ctx.fill()
def draw_rect(canvas: CANVAS, color: (int, int, int), rectangle: (int, int, int, int)) -> None:
ctx = canvas.getContext("2d")
x, y, w, h = rectangle
ctx.fillStyle = "rgb" + str(color)
ctx.fillRect(x, y, w, h)
