numerobis/examples/ball.nbis at main · rphle/numerobis · GitHub

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from graphics import *;
from math import abs, round;
from random import random;


# Window setup
init(800, 600)
set_bg("#0d1117")
set_title("Bouncing Ball")

# Ball state
bx = 400.0
by = 300.0
vx = random() * 10 - 5
vy = random() * 10 - 5
radius = 30

while not quit_requested() do {
    # Update position
    if mouse_down() then {
        bx = mouse_x()
        by = mouse_y()
    } else {
        bx = round(bx + vx)
        by = round(by + vy)
    }

    # Bounce off walls
    if bx - radius < 0 or bx + radius > 800 then { vx = vx * -1 }
    if by - radius < 0 or by + radius > 600 then { vy = vy * -1 }

    # Background panel
    rounded_rect(10, 10, 780, 580, 16, "#161b22", true)

    # Ball shadow
    circle(bx + 4, by + 4, radius, "#00000066", true)

    # Ball
    circle(bx, by, radius, "#58a6ff", true)

    # Highlight
    circle(bx - 8, by - 8, radius / 4, "#ffffff44", true)

    # HUD
    text(20, 20, "pos: (" + (bx -> Str) + ", " + (by -> Str) + ")",
         14, "#8b949e")

    blit()
}