Juego tipo plataformas usando Pyxel.

import pyxel
 
class Platformer:
    def __init__(self):
        pyxel.init(160, 160, title="Llave del Tesoro", fps=60)
        self.reset_game()
        pyxel.run(self.update, self.draw)
 
    def reset_game(self):
        self.player_x = 80
        self.player_y = 140
        self.player_dy = 0
        self.has_key = False
        self.current_level = 0
        self.levels = [
            {   # Nivel 1
                "platforms": [(0, 150, 160, 10), (40, 120, 40, 10), (100, 90, 40, 10)],
                "obstacles": [(60, 140, 10, 10), (120, 110, 10, 10)],
                "key": (140, 80),
                "door": (10, 100)
            },
            {   # Nivel 2
                "platforms": [(0, 150, 160, 10), (20, 120, 40, 10), (100, 90, 40, 10), (60, 60, 40, 10)],
                "obstacles": [(90, 140, 10, 10), (140, 110, 10, 10), (30, 80, 10, 10)],
                "key": (10, 140),
                "door": (140, 100)
            },
            {   # Nivel 3
                "platforms": [(0, 150, 160, 10), (40, 120, 20, 10), (100, 100, 20, 10), (60, 70, 20, 10)],
                "obstacles": [(60, 140, 10, 10), (140, 120, 10, 10), (20, 90, 10, 10)],
                "key": (80, 30),
                "door": (75, 120)
            }
        ]
        self.load_level()
 
    def load_level(self):
        level = self.levels[self.current_level]
        self.platforms = level["platforms"]
        self.obstacles = level["obstacles"]
        self.key = level["key"]
        self.door = level["door"]
        self.has_key = False
 
    def check_platform_collision(self, x, y):
        for (px, py, pw, ph) in self.platforms:
            if (x + 8 > px and x < px + pw and
                y + 8 > py and y < py + ph):
                return True
        return False
 
    def check_obstacle_collision(self):
        for (ox, oy, ow, oh) in self.obstacles:
            if (self.player_x + 8 > ox and self.player_x < ox + ow and
                self.player_y + 8 > oy and self.player_y < oy + oh):
                return True
        return False
 
    def update(self):
        if self.check_obstacle_collision():
            self.load_level()
            self.player_x = 80
            self.player_y = 140
            return
 
        # Movimiento horizontal
        if pyxel.btn(pyxel.KEY_LEFT):
            self.player_x = max(0, self.player_x - 2)
        if pyxel.btn(pyxel.KEY_RIGHT):
            self.player_x = min(152, self.player_x + 2)
 
        # Salto
        if pyxel.btnp(pyxel.KEY_SPACE) and self.check_platform_collision(self.player_x, self.player_y + 1):
            self.player_dy = -4
 
        # Gravedad
        self.player_dy = min(self.player_dy + 0.2, 3)
        new_y = self.player_y + self.player_dy
 
        # Colisión vertical
        if not self.check_platform_collision(self.player_x, new_y):
            self.player_y = new_y
        else:
            self.player_dy = 0
 
        # Recolectar llave
        if (abs(self.player_x - self.key[0]) < 8 and 
            abs(self.player_y - self.key[1]) < 8):
            self.has_key = True
 
        # Cambiar de nivel
        if self.has_key and (abs(self.player_x - self.door[0]) < 8 and 
                           abs(self.player_y - self.door[1]) < 8):
            if self.current_level < len(self.levels) - 1:
                self.current_level += 1
                self.load_level()
                self.player_x = 80
                self.player_y = 140
            else:
                pyxel.text(60, 80, "¡HAS GANADO!", pyxel.frame_count % 16)
 
    def draw(self):
        pyxel.cls(0)
 
        # Dibujar plataformas
        for (x, y, w, h) in self.platforms:
            pyxel.rect(x, y, w, h, 3)
 
        # Dibujar obstáculos
        for (x, y, w, h) in self.obstacles:
            pyxel.rect(x, y, w, h, 8)
 
        # Dibujar llave
        if not self.has_key:
            pyxel.rect(self.key[0], self.key[1], 8, 8, 9)
 
        # Dibujar puerta
        if self.has_key:
            door_color = 7 
        else:
            door_color = 4
        pyxel.rect(self.door[0], self.door[1], 8, 8, door_color)
 
        # Dibujar jugador
        pyxel.rect(self.player_x, self.player_y, 8, 8, 11)
 
        # UI
        pyxel.text(5, 5, f"Nivel: {self.current_level + 1}", 7)
        pyxel.text(105, 5, f"Llave: {'SI' if self.has_key else 'NO'}", 9)
#        pyxel.text(5, 25, "Controles:", 7)
#        pyxel.text(5, 35, "Flechas: Movimiento", 7)
#        pyxel.text(5, 45, "Espacio: Saltar", 7)
Platformer()