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September 21, 2022 09:36
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Samegame pyscript and p5.js example
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="UTF-8"> | |
<title>Samegame</title> | |
<link rel="stylesheet" href="https://pyscript.net/alpha/pyscript.css" /> | |
<script defer src="https://pyscript.net/alpha/pyscript.js"></script> | |
<py-config> | |
- autoclose_loader: true | |
- runtimes: | |
- | |
src: https://cdn.jsdelivr.net/pyodide/v0.21.3/full/pyodide.js | |
name: pyodide-alpha | |
lang: python | |
</py-config> | |
</head> | |
<body> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.4.2/p5.js"></script> | |
<div> | |
<script> | |
function setup() {} | |
</script> | |
</div> | |
<py-script src="samegame.py"></py-script> | |
</body> | |
</html> |
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import js | |
from pyodide.ffi import create_proxy | |
p5 = js.window | |
NROWS = 10 # numer of brick rows | |
NCOLS = 20 # number of brick columns | |
NCOLORS = 4 # 1 .. 5 | |
B_WIDTH = 50 # brick width | |
FPS = 30 # frames per second | |
C_WIDTH = NCOLS * B_WIDTH # canvas width | |
C_HEIGHT = NROWS * B_WIDTH # canvas height | |
game = None | |
canvas = None | |
def setup(): | |
global game, canvas | |
canvas = p5.createCanvas(C_WIDTH, C_HEIGHT, p5.P2D) | |
canvas.mousePressed(create_proxy(mousePressed)) | |
p5.rectMode(p5.CENTER) | |
p5.frameRate(FPS) | |
game = SameGame() | |
def draw(*args): | |
global game | |
game.plotBoard() | |
p5.requestAnimationFrame(create_proxy(draw)) | |
def inCell(x,y): | |
return (int(x) // (B_WIDTH + 1), int(y) // (B_WIDTH + 1)) | |
def inCanvas(x,y): | |
return (0 <= x <= C_WIDTH) and (0 <= y <= C_HEIGHT) | |
def mousePressed(event): | |
global game | |
x, y = p5.mouseX, p5.mouseY | |
i, j = inCell(x,y) | |
if (0 <= i < game.nc) and (0 <= j < game.nr): | |
if not game.alone(i,j): | |
game.floodfill(i,j) | |
game.fall_all() | |
def PyKeyTyped(event): | |
global game | |
if event.key == "n": | |
game = SameGame() | |
elif event.key in ("3","4","5"): | |
colors = int(event.key) | |
game = SameGame(ncolors=colors) | |
p5.keyTyped = create_proxy(PyKeyTyped) | |
cell_colors = {0:"black", 1:"green", 2:"blue", | |
3:"red", 4:"yellow", 5:"magenta"} | |
def cells(colors_only=False,ncolors=NCOLORS): | |
ycent = B_WIDTH // 2 | |
pos = [[0] * NROWS for col in range(NCOLS)] | |
colors = [[0] * NROWS for col in range(NCOLS)] | |
# store cell centers coordinates and colors, columnwise | |
for row in range(NCOLS): | |
xcent = -B_WIDTH // 2 | |
for col in range(NROWS): | |
xcent += B_WIDTH | |
pos[row][col] = (ycent,xcent) | |
colors[row][col] = int(p5.random(1, ncolors + 1)) | |
ycent += B_WIDTH | |
if not colors_only: | |
return pos, colors | |
return colors | |
class SameGame: | |
def __init__(self,nr=NROWS, nc=NCOLS, ncolors=NCOLORS, | |
colors=None, pos=None, score=0, score_diff=0, | |
empty_cols = None, to_fill=None,score_corr=0): | |
self.nr = nr | |
self.nc = nc | |
self.ncolors = ncolors | |
self.to_fill = set() | |
self.score = score | |
self.score_diff = score_diff | |
self.score_corr = score_corr | |
self.empty_cols = [] | |
self.pos, self.colors = cells(ncolors=ncolors) | |
def plotBoard(self): | |
for row in range(NROWS): | |
for col in range(NCOLS): | |
xc, yc = self.pos[col][row] | |
p5.fill(cell_colors[self.colors[col][row]]) | |
p5.rect(xc,yc,B_WIDTH,B_WIDTH) | |
p5.fill(255) | |
p5.textSize(20) | |
p5.textAlign(p5.RIGHT) | |
p5.text("Score: %d" %self.score, 130, C_HEIGHT - 6) | |
if self.endGame(): | |
if not self.score_corr: | |
self.score_correction() | |
self.score_corr = True | |
self.compactLeft() | |
p5.textSize(36) | |
p5.textAlign(p5.CENTER) | |
p5.text("End of Game",C_WIDTH // 2, C_HEIGHT // 2 - 10) | |
def neighbours(self,i,j): | |
possible = [(i-1,j),(i+1,j),(i,j-1),(i,j+1)] | |
return [p for p in possible if (0 <= p[0] < self.nc) | |
and (0 <= p[1] < self.nr)] | |
def alone(self,i,j): | |
# i -column, j - row | |
color = self.colors[i][j] | |
res = True | |
if color == 0: | |
return True | |
for k,l in self.neighbours(i,j): | |
if self.colors[k][l] == color: | |
res = False | |
break | |
return res | |
def floodfill(self, i, j,color=None): | |
if color == None: | |
self.to_fill = set() | |
if self.colors[i][j]: | |
color = self.colors[i][j] | |
if self.alone(i,j): | |
return | |
if self.colors[i][j] == color: | |
self.colors[i][j] = 0 | |
self.to_fill.add(i) | |
self.score_diff += 1 | |
else: | |
return | |
for k,l in self.neighbours(i,j): | |
self.floodfill(k,l,color=color) | |
def fall_column(self,col): | |
if sum(self.colors[col]) == 0: | |
self.empty_cols.append(col) | |
return | |
colored = [] | |
for row in range(self.nr): | |
cc = self.colors[col][row] | |
if cc: | |
colored.append(cc) | |
lc = len(colored) | |
new_col = [0] *(self.nr - lc) + colored | |
self.colors[col] = new_col | |
def compactLeft(self): | |
if self.empty_cols == []: | |
return | |
for c in sorted(self.empty_cols,reverse=True): | |
for cindex in range(c,self.nc-1): | |
self.colors[cindex] = self.colors[cindex + 1] | |
self.colors[self.nc-1] = [0] * self.nr | |
self.empty_cols = [] | |
def fall_all(self): | |
if self.to_fill == []: | |
self.score_diff = 0 | |
return | |
for col in self.to_fill: | |
self.fall_column(col) | |
self.compactLeft() | |
nscore = self.score_diff - 1 | |
self.score += (nscore * nscore) | |
self.score_diff = 0 | |
def endGame(self): | |
return sum([self.alone(i,j) for i in range(self.nc) | |
for j in range(self.nr)]) == self.nr * self.nc | |
def score_correction(self): | |
rem = sum(bool(self.colors[c][r]) for c in range(self.nc) | |
for r in range(self.nr)) | |
if rem == 0: | |
self.score += 1000 | |
else: | |
self.score -= (rem-1)*(rem-1) | |
setup() | |
p5.requestAnimationFrame(create_proxy(draw)) |
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