That’s a very old sketch of mine.
BtW, I did a followup w/ 2 players instead of 1 both for Java Mode & p5js flavors:
And now I’ve decided to do a Python Mode version as well. Check it out:
#!/bin/python2
"""
Players Movement (v1.1.0)
by GoToLoop (2020/Mar/11)
Discourse.Processing.org/t/issues-with-smooth-2d-movement-in-python/18556/4
GoToLoop.Trinket.io/sites/players-movement
Trinket.io/processing/62fab051ed
Reddit.com/r/processing/comments/bshqa8/
how_would_i_make_a_keypressed_function_support/eor5epo/
OpenProcessing.org/sketch/718355
OpenProcessing.org/sketch/717760
Studio.ProcessingTogether.com/sp/pad/export/ro.91tcpPtI9LrXp
"""
original_set = set # Save Python's builtin set() before Processing's import
from processing import *
ONLINE = '__papplet__' not in globals()
W = 750 if ONLINE else 1200
H = 450 if ONLINE else 600
PLAYERS = 2 # Number of players
BG = 0xff00FFFF # Cyan background
DIAMS = 50, 40 # Diameters
SPDS = 4, 5 # Speeds
INKS = 0xff0000FF, 0xffFF0000 # Blue, Red
KEYS = (
tuple(ord(k) for k in 'WSAD'), # Player 1's keys
(UP, DOWN, LEFT, RIGHT)) # Player 2's keys
players = PLAYERS * [ None ]
keysDown = original_set()
def setup():
size(W, H)
stroke(Player.OUTLINE)
strokeWeight(Player.BOLD)
ellipseMode(Player.MODE)
for i in range(PLAYERS):
d = DIAMS[i]
dd = d << i
players[i] = Player(dd, dd, d, SPDS[i], INKS[i], KEYS[i])
def draw():
background(BG)
for p in players: p.move().display()
def keyPressed(): keysDown.add(keyCode)
def keyReleased(): keysDown.discard(keyCode)
class Player:
OUTLINE, BOLD, MODE = 0, 2, CENTER
UP, DOWN, LEFT, RIGHT = range(4)
def __init__(p, x, y, d, v, ink, keys):
p.x = x
p.y = y
p.d = d
p.v = v
p.ink = color(ink)
p.keys = keys
def display(p):
fill(p.ink)
ellipse(p.x, p.y, p.d, p.d)
return p
def move(p):
r = p.d >> 1
v = p.v
k = p.keys
hor = (k[p.RIGHT] in keysDown) - (k[p.LEFT] in keysDown)
ver = (k[p.DOWN] in keysDown) - (k[p.UP] in keysDown)
p.x = constrain(p.x + v*hor, r, width - r)
p.y = constrain(p.y + v*ver, r, height - r)
return p
ONLINE and run()