Super_Alien.py

Super_Alien.py

from scene import *
import json
import sound
import random
import math

A = Action

standing_texture = Texture('plf:AlienBlue_front')
walk_textures = [Texture('plf:AlienBlue_walk1'), Texture('plf:AlienBlue_walk2')]
jump_texture = Texture('plf:AlienBlue_jump')
swim_textures = Texture('plf:AlienBlue_swim1'), Texture('plf:AlienBlue_swim2')

class super_gem(SpriteNode):
  def __init__(self, **kwargs):
    SpriteNode.__init__(self, 'plc:Gem_Blue', **kwargs)
    
class good_gem(SpriteNode):
  def __init__(self, **kwargs):
    SpriteNode.__init__(self, 'plc:Gem_Green', **kwargs)

class Evil(SpriteNode):
  def __init__(self, **kwargs):
    SpriteNode.__init__(self, 'emj:Alien_Monster', **kwargs)

background_objects_json_str = '''
[{"x": 675, "y": 64, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"}, 
{"x": 610, "y": 64, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 545, "y": 64, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 480, "y": 64, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 825, "y": 180, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 890, "y": 180, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 675, "y": 350, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 740, "y": 350, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 505, "y": 64, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 825, "y": 180, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 890, "y": 180, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 675, "y": 350, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 50, "y": 450, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 115, "y": 450, "w": 65, "h": 50, "img": "plf:Ground_PlanetMid"},
{"x": 200, "y": 300, "w": 200, "h": 50, "img": "plf:Ground_PlanetMid"}]'''

goodie_objects_json_str = '''
[]'''

baddie_objects_json_str = '''
[{"x": 600, "y": 400, "w": 100, "h": 100, "img": "emj:Alien_Monster"},
{"x": 1200, "y": 50, "w": 70, "h": 70, "img": "emj:Blowfish"},
{"x": 1500, "y": 80, "w": 70, "h": 70, "img": "emj:Blowfish"},
{"x": 1800, "y": 100, "w": 70, "h": 70, "img": "emj:Blowfish"}]'''

water_objects_json_str = '''
[{"x": -100, "y": -100, "w": 30, "h": 24, "img": "plf:Tile_Water"},
{"x": -100, "y": -100, "w": 30, "h": 24, "img": "plf:Tile_WaterTop_high"}]'''

def calculate_overlaps(actor_frame,tile_frame):
  if actor_frame.x + actor_frame.w/2 <= (tile_frame.x + tile_frame.w/2):
    x_overlap = actor_frame.x + actor_frame.w - tile_frame.x
    x_postion = 'left'
  else:
    x_overlap = tile_frame.x + tile_frame.w - actor_frame.x
    x_postion = 'right'
  if (actor_frame.y + actor_frame.h/2) >= (tile_frame.y + tile_frame.h/2):
    y_overlap = tile_frame.y + tile_frame.h - actor_frame.y 
    y_position = 'above'
  else:
    y_overlap = actor_frame.y + actor_frame.h - tile_frame.y
    y_position = 'below'
  return(x_overlap, y_overlap, x_postion, y_position) 

class GameEnvironment(object):
  def __init__(self):
    self.background_speed = 1
    self.jump = 409
    self.gravity = -500

class MyScene (Scene):
  def setup(self):
    self.env = GameEnvironment()
    self.ground = Node(parent=self)
    groundimage = 'plf:Ground_PlanetMid'
    w = SpriteNode(groundimage).size.w
    h = SpriteNode(groundimage).size.h
    x = 0
    while x <= 2 * self.size.w + w:
      tile = SpriteNode(groundimage, position=(x, h/2))
      self.ground.add_child(tile)
      x += w
    self.background_color = 'midnightblue'
    self.background_objects = []
    self.good_objects = []
    self.bad_objects = []
    json_object = json.loads(background_objects_json_str)
    goodie_objects = json.loads(goodie_objects_json_str)   
    baddie_objects = json.loads(baddie_objects_json_str)
    
    for x in json_object:
      item = SpriteNode(x['img'])
      item.anchor_point = (0.5, 0)
      item.position = (x['x'], x['y'])
      item.size = (x['w'], x['h'])
      self.add_child(item)
      self.background_objects.append(item)
      
    for i in range(15):
      for j in range(11):
        item = SpriteNode('plf:Tile_Water')
        item.size = (70,70)
        item.anchor_point = (0.5, 0)
        item.position = (i*70 + 1060, j*70 + 64)
        self.add_child(item)
      
    for i in range(26):
      for j in range(8):
        r = random.uniform(1,2) 
        if r <= 1.25:
          item = super_gem()
          item.size = (60,70)
        elif r <= 1.75:
          item = good_gem()
          item.size = (45,55)
        else:
          item = SpriteNode('plc:Gem_Orange')
          item.size = (40,50)
        item.anchor_point = (0.5, 0)
        item.position = (i*80 + 25, j*60 + 315)         
        self.add_child(item)
        self.good_objects.append(item)           
    
    for x in baddie_objects:
      if item == SpriteNode('emj:Alien_Monster'):
        item = Evil()
      else:
        item = SpriteNode(x['img'])
      item.anchor_point = (0.5, 0)
      item.position = (x['x'], x['y'])
      item.size = (x['w'], x['h'])
      self.add_child(item) 
      self.bad_objects.append(item)  
     
    self.player = SpriteNode(standing_texture)
    self.player.anchor_point = (0.5, 0)
    self.player_actual_h = 78
    self.player_actual_w = 60
    self.landed_objects = None
    
    score_font = ('Futura', 40)
    self.score_label = LabelNode('0', score_font, parent=self)
    self.score_label.position = (self.size.w/2, self.size.h - 80)
    self.score_label.z_position = 1
    
    life_font = ('Futura', 40)
    self.life_label = LabelNode('Life:' + str('100'), score_font, parent=self)
    self.life_label.position = (self.size.w/2, self.size.h - 30)
    self.life_label.z_position = 1
       
    self.add_child(self.player)
    self.new_game()
    
  def new_game(self):
    self.goodie_object_speed = 0.1
    self.walk_step = -1
    self.player.position = (80, 63)
    self.player.texture = standing_texture
    self.player_y_speed = 0.0
    self.player_x_speed = 0.0
    self.max_speed = 30.0
    self.player_landed = True
    self.player_jumped = False  
    self.score = 0
    self.score_label.text = 'Score:' + str('0')
    self.life = 100
    self.life_label.text = 'Life:' + str('100')
    self.screen_number = 1
    
  def update_player(self):
    g = gravity()
    old_x = self.player.position.x
    old_y = self.player.position.y
    y = self.player.position.y 
    x = self.player.position.x 
    
    if y <= 63:
      self.player_landed = True
      
    if self.player_landed == False:
      self.player.texture = jump_texture
      
    if abs(g.y) <= 0.05 and self.player_landed:
      self.player_x_speed = 0
    
    if abs(g.y) > 0.05 and self.player_landed:
      self.player_x_speed = -g.y * self.max_speed
      self.player.x_scale = -cmp(g.y, 0)
      step = int(self.player.position.x / 40) % 2
      
      if step != self.walk_step:
        self.player.texture = walk_textures[step]
        sound.play_effect('rpg:Footstep00', 0.05, 1.0 + 0.5 * step)
        self.walk_step = step
    elif self.player_landed:
      self.player.texture = standing_texture
      self.walk_step = -1
      
    x = max(0, min(self.size.w, x + self.player_x_speed))
    
    if self.player_jumped:
      self.player_jumped = False
      self.player_landed = False
      self.player_y_speed = self.env.jump
    elif not self.player_landed:
      self.player_y_speed = self.player_y_speed + self.env.gravity * self.dt
      
    if not self.player_landed:
      y += self.player_y_speed * self.dt
      if y <= 63:
        y = 63
        
    desired_frame = Rect(x-self.player_actual_w/2, y, self.player_actual_w, self.player_actual_h)
    
    if self.landed_objects:
      (x_overlap, y_overlap, x_position, y_position) = calculate_overlaps(desired_frame, self.landed_objects.frame)   
      if x_overlap < 0: 
        self.player_landed = False
        self.landed_objects = None  
    
    for object in self.background_objects:
      (x_overlap, y_overlap, x_position, y_position) = calculate_overlaps(desired_frame, object.frame)
      if x_overlap < 0 or y_overlap < 0:
        new_frame = desired_frame
      else:
        if x_overlap < y_overlap:
          if x_position == 'left':
            self.player_x_speed = 0
            new_x = desired_frame.x - x_overlap
          else:
            new_x = desired_frame.x + x_overlap
          desired_frame = Rect(new_x,desired_frame.y,desired_frame.w,desired_frame.h)
        else: 
          self.player_y_speed = 0
          if y_position == 'above':
            new_y = desired_frame.y + y_overlap
            self.player_landed = True
            self.landed_objects = object
          else:
            new_y = desired_frame.y - y_overlap
          desired_frame = Rect(desired_frame.x,new_y,desired_frame.w,desired_frame.h)  
 
        
    self.player.position = (desired_frame.x + desired_frame.w/2, desired_frame.y) 
    
  def collect_item(self, item, value=10):
    if value > 90:
      sound.play_effect('arcade:Powerup_1')
    elif value > 20:
      sound.play_effect('arcade:Coin_1')
    elif value == 0:
      sound.play_effect('arcade:Laser_4')
    else:
      sound.play_effect('digital:PowerUp7')
    item.remove_from_parent()
    if item in self.good_objects:
      self.good_objects.remove(item)
      self.score += value
      self.score_label.text = 'Score:' + str(self.score)
    else:
      self.bad_objects.remove(item)
      self.life -= value
      self.life_label.text = 'Life:' + str(self.life)
    
  def check_item_collisions(self):
    player_hitbox = Rect(self.player.position.x - self.player_actual_w/2, self.player.position.y, self.player_actual_w, self.player_actual_h)
    for item in list(self.good_objects) + self.bad_objects:
      if item.frame.intersects(player_hitbox):
        if isinstance(item, super_gem):
          self.collect_item(item, 100)
        elif isinstance(item, good_gem):
          self.collect_item(item, 25)
        elif isinstance(item, Evil):
          self.collect_item(item, 100)
        else:
          self.collect_item(item, 10)
          
  def shift_screen(self, direction):
    if direction == 'right':
       self.screen_number += 1
    else:
       self.screen_number -= 1    
    
    for node in self.children:
      if not isinstance(node, LabelNode):
        if direction == 'right': 
          node.position = (node.position.x - self.size.w, node.position.y)
        else: 
          node.position = (node.position.x + self.size.w, node.position.y)
    
  def update_goodies(self):
    for item in self.good_objects:
      (a_x, a_y) = self.player.position
      (x, y) = item.position
      l = math.sqrt((x - a_x)**2 + (y - a_y)**2)
      dx = (x - a_x)/l * self.goodie_object_speed
      dy = (y - a_y)/l * self.goodie_object_speed
      item.position = item.position + (dx, dy)
#      actions = [A.move_by(dx, dy, 1/60.0)]
#      item.run_action(A.sequence(actions))
    
  def update(self):
    self.check_item_collisions()
    self.update_player()
    self.update_goodies()
    if self.player.position.x == self.size.w and self.screen_number < 2:
      self.shift_screen('right')
    elif self.player.position.x == 0 and self.screen_number > 1:
      self.shift_screen('left')

  def touch_began(self, touch):
    if self.player_landed or self.screen_number == 2:
      self.player_jumped = True
      self.player_landed = False
      sound.play_effect('game:Boing_1')   

run(MyScene(), LANDSCAPE)