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September 1, 2017 02:00
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Tetris implemented in python
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| #!/usr/bin/env python2 | |
| import Tkinter | |
| import random | |
| import sys | |
| # Represents one block in tetris | |
| class TetrisBlock(): | |
| SHAPES = [[(0,0), (1,0), (0,1), (1,1)], # BOX | |
| [(0,0), (1,0), (2,0), (3,0)], # LINE | |
| [(2,0), (0,1), (1,1), (2,1)], # Right L | |
| [(0,0), (0,1), (1,1), (2,1)], # Left L | |
| [(0,1), (1,1), (1,0), (2,0)], # Right S | |
| [(0,0), (1,0), (1,1), (2,1)], # Left S | |
| [(1,0), (0,1), (1,1), (2,1)]] # Pyramide | |
| COLORS = ["yellow","lightblue","orange","blue","green","red","purple"] | |
| def __init__(self, tetris, i=None): | |
| if i is None: i = random.randint(0,6) | |
| self.shape = self.SHAPES[i] | |
| self.color = self.COLORS[i] | |
| self.tetris = tetris | |
| self.canvas = self.tetris.canvas | |
| self.boxes = [] | |
| mid = self.tetris.p_width / 2 - self.tetris.ppb / 2 | |
| for point in self.shape: | |
| x,y = point | |
| box = self.canvas.create_rectangle(x * self.tetris.ppb + mid, | |
| y * self.tetris.ppb, | |
| (x+1) * self.tetris.ppb + mid, | |
| (y+1) * self.tetris.ppb, | |
| fill = self.color) | |
| self.boxes += [box] | |
| def move_box(self, box, x, y): | |
| x *= self.tetris.ppb | |
| y *= self.tetris.ppb | |
| coords = self.canvas.coords(box) | |
| if coords[3] + y > self.tetris.p_height: return False | |
| if coords[0] + x < 0: return False | |
| if coords[2] + x > self.tetris.p_width: return False | |
| o = set(self.canvas.find_overlapping((coords[0] + coords[2]) / 2 + x, | |
| (coords[1] + coords[3]) / 2 + y, | |
| (coords[0] + coords[2]) / 2 + x, | |
| (coords[1] + coords[3]) / 2 + y )) | |
| other = set(self.canvas.find_all()) - set(self.boxes) | |
| if o & other: return False | |
| return True | |
| def move_shape(self, x, y): | |
| for box in self.boxes: | |
| if not self.move_box(box, x,y): return False | |
| return True | |
| def fall(self): | |
| if self.move_shape(0,1): | |
| for box in self.boxes: | |
| self.canvas.move(box,0,self.tetris.ppb) | |
| return True | |
| return False | |
| def move(self, x, y): | |
| if not self.move_shape(x, y): return False | |
| else: | |
| for box in self.boxes: | |
| self.canvas.move(box, x * self.tetris.ppb, y * self.tetris.ppb) | |
| return True | |
| def rotate(self): | |
| copy = self.boxes[:] | |
| pivot = copy.pop(2) | |
| def check(box): | |
| bc = self.canvas.coords(box) | |
| pc = self.canvas.coords(pivot) | |
| xd = bc[0] - pc[0] | |
| yd = bc[1] - pc[1] | |
| xm = (-xd-yd) / self.tetris.ppb | |
| ym = (xd-yd) / self.tetris.ppb | |
| return xm, ym | |
| # Check if all blocks can be rotated | |
| for box in copy: | |
| x,y = check(box) | |
| if not self.move_box(box,x,y): | |
| return False | |
| # Move blocks | |
| for box in copy: | |
| x,y = check(box) | |
| self.canvas.move(box, x * self.tetris.ppb, y * self.tetris.ppb) | |
| return True | |
| # Tetris game | |
| class Tetris(): | |
| def __init__(self, width, height, ppb=30): | |
| self.width = width | |
| self.height = height | |
| self.ppb = ppb | |
| # Calculate pixel dimensions | |
| self.p_width = self.width * self.ppb | |
| self.p_height = self.height * self.ppb | |
| # Game variables | |
| self.boxes = [] | |
| self.c_box = None | |
| self.speed = 300 | |
| # Show the UI | |
| def show(self): | |
| self.ui = Tkinter.Tk() | |
| self.ui.title("PyTetris") | |
| self.canvas = Tkinter.Canvas(self.ui, width=self.p_width, | |
| height=self.p_height) | |
| self.canvas.pack() | |
| self.ui.bind("<Key>", self.key_press) | |
| self.game_frame() | |
| # Enter Tkinter mainloop | |
| self.ui.mainloop() | |
| # Render one game frame | |
| def game_frame(self): | |
| if self.c_box is None: | |
| self.c_box = TetrisBlock(self) | |
| if not self.c_box.fall(): | |
| # Remove completed lines # TODO | |
| self.c_box = TetrisBlock(self) | |
| # Check gameover | |
| for box in self.c_box.boxes: | |
| if not self.c_box.move_box(box, 0, 1): | |
| print "Game over!" | |
| sys.exit() | |
| self.ui.after(self.speed, self.game_frame) | |
| # Handle keypresses | |
| def key_press(self, e): | |
| if self.c_box is None: return | |
| if e.keysym == "Left": self.c_box.move(-1,0) | |
| if e.keysym == "Right": self.c_box.move(1,0) | |
| if e.keysym == "Down": self.c_box.move(0,1) | |
| if e.keysym == "Up": self.c_box.rotate() | |
| if __name__ == "__main__": | |
| t = Tetris(10,20) | |
| t.show() |
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