I make A Game Called Asteroids-RiceRocks

Author: Anuj Kumar

Asteroids-RiceRocks.py

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+#-------------------------------------------------------------------
+
+# implementation of Spaceship - program template for RiceRocks
+import simplegui
+import math
+import random
+
+#-------------------------------------------------------------------
+
+
+# helper classes
+
+class ImageInfo:
+    def __init__(self, center, size, radius = 0, lifespan = None, animated = False):
+        self.center = center
+        self.size = size
+        self.radius = radius
+        if lifespan:
+            self.lifespan = lifespan
+        else:
+            self.lifespan = float('inf')
+        self.animated = animated
+
+    def get_center(self):
+        return self.center
+
+    def get_size(self):
+        return self.size
+
+    def get_radius(self):
+        return self.radius
+
+    def get_lifespan(self):
+        return self.lifespan
+
+    def get_animated(self):
+        return self.animated
+
+    
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+    
+# art assets created by Kim Lathrop, may be freely re-used in non-commercial projects, please credit Kim
+    
+# debris images - debris1_brown.png, debris2_brown.png, debris3_brown.png, debris4_brown.png
+#                 debris1_blue.png, debris2_blue.png, debris3_blue.png, debris4_blue.png, debris_blend.png
+debris_info = ImageInfo([320, 240], [640, 480])
+debris_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/debris2_blue.png")
+
+# nebula images - nebula_brown.png, nebula_blue.png
+nebula_info = ImageInfo([400, 300], [800, 600])
+nebula_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/nebula_blue.f2014.png")
+
+# splash image
+splash_info = ImageInfo([200, 150], [400, 300])
+splash_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/splash.png")
+
+# ship image
+ship_info = ImageInfo([45, 45], [90, 90], 35)
+ship_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/double_ship.png")
+
+# missile image - shot1.png, shot2.png, shot3.png
+missile_info = ImageInfo([5,5], [10, 10], 3, 50)
+missile_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/shot2.png")
+
+# asteroid images - asteroid_blue.png, asteroid_brown.png, asteroid_blend.png
+asteroid_info = ImageInfo([45, 45], [90, 90], 40)
+asteroid_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/asteroid_blue.png")
+
+# animated explosion - explosion_orange.png, explosion_blue.png, explosion_blue2.png, explosion_alpha.png
+explosion_info = ImageInfo([64, 64], [128, 128], 17, 24, True)
+explosion_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/explosion_alpha.png")
+
+# sound assets purchased from sounddogs.com, please do not redistribute
+# .ogg versions of sounds are also available, just replace .mp3 by .ogg
+soundtrack = simplegui.load_sound("http://commondatastorage.googleapis.com/codeskulptor-assets/sounddogs/soundtrack.mp3")
+missile_sound = simplegui.load_sound("http://commondatastorage.googleapis.com/codeskulptor-assets/sounddogs/missile.mp3")
+ship_thrust_sound = simplegui.load_sound("http://commondatastorage.googleapis.com/codeskulptor-assets/sounddogs/thrust.mp3")
+explosion_sound = simplegui.load_sound("http://commondatastorage.googleapis.com/codeskulptor-assets/sounddogs/explosion.mp3")
+
+# alternative upbeat soundtrack by composer and former IIPP student Emiel Stopler
+# please do not redistribute without permission from Emiel at http://www.filmcomposer.nl
+#soundtrack = simplegui.load_sound("https://storage.googleapis.com/codeskulptor-assets/ricerocks_theme.mp3")
+
+
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+
+
+# globals for user interface
+WIDTH = 800
+HEIGHT = 600
+score = 0
+lives = 3
+time = 0
+started = False
+
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+
+
+# helper functions to handle transformations
+def angle_to_vector(ang):
+    return [math.cos(ang), math.sin(ang)]
+
+def dist(p, q):
+    return math.sqrt((p[0] - q[0]) ** 2 + (p[1] - q[1]) ** 2)
+
+def process_sprite_group(s_group, canvas):
+    for x in set(s_group):
+        x.draw(canvas)
+        if x.update():
+            s_group.remove(x)
+
+            
+def group_collide(s_group, other_object):
+    has_collide = False
+    
+    for x in set(s_group):
+        if (x.collide(other_object)):
+            a_explosion = Sprite(x.get_position(), [0, 0], 0, 0, explosion_image, explosion_info, explosion_sound)
+            explosion_group.add(a_explosion)
+            s_group.remove(x)
+            has_collide = True
+
+    return has_collide
+
+
+def group_group_collide(group1, group2):
+    total_collisions = 0
+    
+    for x in set(group1):
+        if group_collide(group2, x):
+            group1.discard(x)
+            total_collisions += 1
+            
+    return total_collisions
+        
+#-------------------------------------------------------------------
+# Ship class
+class Ship:
+
+    def __init__(self, pos, vel, angle, image, info):
+        self.pos = [pos[0], pos[1]]
+        self.vel = [vel[0], vel[1]]
+        self.thrust = False
+        self.angle = angle
+        self.angle_vel = 0
+        self.image = image
+        self.image_center = info.get_center()
+        self.image_size = info.get_size()
+        self.radius = info.get_radius()
+
+    def get_position(self):
+        return self.pos
+
+    def get_radius(self):
+        return self.radius        
+        
+    def draw(self,canvas):
+        if self.thrust:
+            canvas.draw_image(self.image, [self.image_center[0] + self.image_size[0], self.image_center[1]] , self.image_size,
+                              self.pos, self.image_size, self.angle)
+        else:
+            canvas.draw_image(self.image, self.image_center, self.image_size,
+                              self.pos, self.image_size, self.angle)
+
+    def update(self):
+        # update angle
+        self.angle += self.angle_vel
+        
+        # update position
+        self.pos[0] = (self.pos[0] + self.vel[0]) % WIDTH
+        self.pos[1] = (self.pos[1] + self.vel[1]) % HEIGHT
+
+        # update velocity
+        if self.thrust:
+            acc = angle_to_vector(self.angle)
+            self.vel[0] += acc[0] * .1
+            self.vel[1] += acc[1] * .1
+            
+        self.vel[0] *= .99
+        self.vel[1] *= .99
+
+    def set_thrust(self, on):
+        self.thrust = on
+        if on:
+            ship_thrust_sound.rewind()
+            ship_thrust_sound.play()
+        else:
+            ship_thrust_sound.pause()
+       
+    def increment_angle_vel(self):
+        self.angle_vel += .05
+        
+    def decrement_angle_vel(self):
+        self.angle_vel -= .05
+        
+    def shoot(self):
+        forward = angle_to_vector(self.angle)
+        missile_pos = [self.pos[0] + self.radius * forward[0], self.pos[1] + self.radius * forward[1]]
+        missile_vel = [self.vel[0] + 6 * forward[0], self.vel[1] + 6 * forward[1]]
+        a_missile = Sprite(missile_pos, missile_vel, self.angle, 0, missile_image, missile_info, missile_sound)
+        
+        missile_group.add(a_missile)
+        
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+    
+# Sprite class
+class Sprite:
+    def __init__(self, pos, vel, ang, ang_vel, image, info, sound = None):
+        self.pos = [pos[0],pos[1]]
+        self.vel = [vel[0],vel[1]]
+        self.angle = ang
+        self.angle_vel = ang_vel
+        self.image = image
+        self.image_center = info.get_center()
+        self.image_size = info.get_size()
+        self.radius = info.get_radius()
+        self.lifespan = info.get_lifespan()
+        self.animated = info.get_animated()
+        self.age = 0
+        if sound:
+            sound.rewind()
+            sound.play()
+
+    def get_position(self):
+        return self.pos
+
+    def get_radius(self):
+        return self.radius
+        
+    def draw(self, canvas):
+        if self.animated:
+            canvas.draw_image(self.image, [self.image_center[0] + self.age*self.image_size[0] ,self.image_center[1]] , self.image_size,
+                              self.pos, self.image_size, self.angle)            
+        else:    
+            canvas.draw_image(self.image, self.image_center, self.image_size,
+                              self.pos, self.image_size, self.angle)
+
+    def update(self):
+        # update angle
+        self.angle += self.angle_vel
+        
+        # update position
+        self.pos[0] = (self.pos[0] + self.vel[0]) % WIDTH
+        self.pos[1] = (self.pos[1] + self.vel[1]) % HEIGHT
+    
+        self.age += 1    
+        return (self.age >= self.lifespan)
+           
+        
+    def collide(self,other_object):
+        return ( dist(self.get_position(), other_object.get_position()) <= (self.radius + other_object.radius) )
+
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+
+# key handlers to control ship   
+def keydown(key):
+    if key == simplegui.KEY_MAP['left']:
+        my_ship.decrement_angle_vel()
+    elif key == simplegui.KEY_MAP['right']:
+        my_ship.increment_angle_vel()
+    elif key == simplegui.KEY_MAP['up']:
+        my_ship.set_thrust(True)
+    elif key == simplegui.KEY_MAP['space']:
+        my_ship.shoot()
+        
+def keyup(key):
+    if key == simplegui.KEY_MAP['left']:
+        my_ship.increment_angle_vel()
+    elif key == simplegui.KEY_MAP['right']:
+        my_ship.decrement_angle_vel()
+    elif key == simplegui.KEY_MAP['up']:
+        my_ship.set_thrust(False)
+
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+        
+# mouseclick handlers that reset UI and conditions whether splash image is drawn
+def click(pos):
+    global started, lives, score
+    center = [WIDTH / 2, HEIGHT / 2]
+    size = splash_info.get_size()
+    inwidth = (center[0] - size[0] / 2) < pos[0] < (center[0] + size[0] / 2)
+    inheight = (center[1] - size[1] / 2) < pos[1] < (center[1] + size[1] / 2)
+    if (not started) and inwidth and inheight:
+        started = True
+        lives = 3
+        score = 0
+        soundtrack.rewind()
+        soundtrack.play()
+
+        
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+def draw(canvas):
+    global time, started, lives, score, rock_group
+    
+    # animiate background
+    time += 1
+    wtime = (time / 4) % WIDTH
+    center = debris_info.get_center()
+    size = debris_info.get_size()
+    canvas.draw_image(nebula_image, nebula_info.get_center(), nebula_info.get_size(), [WIDTH / 2, HEIGHT / 2], [WIDTH, HEIGHT])
+    canvas.draw_image(debris_image, center, size, (wtime - WIDTH / 2, HEIGHT / 2), (WIDTH, HEIGHT))
+    canvas.draw_image(debris_image, center, size, (wtime + WIDTH / 2, HEIGHT / 2), (WIDTH, HEIGHT))
+
+    # draw UI
+    canvas.draw_text("Lives", [50, 50], 22, "White")
+    canvas.draw_text("Score", [680, 50], 22, "White")
+    canvas.draw_text(str(lives), [50, 80], 22, "White")
+    canvas.draw_text(str(score), [680, 80], 22, "White")
+
+    # draw and update ship and sprites
+    my_ship.draw(canvas)    
+    my_ship.update()
+        
+    process_sprite_group(rock_group,canvas)
+    process_sprite_group(missile_group,canvas)
+    process_sprite_group(explosion_group,canvas)
+    
+    # update lives
+    if group_collide(rock_group, my_ship):
+        lives -= 1
+        
+    # update score
+    score += group_group_collide(rock_group, missile_group)
+     
+    if lives == 0:
+        started = False
+        rock_group = set()
+        
+        
+    # draw splash screen if not started
+    if not started:
+        canvas.draw_image(splash_image, splash_info.get_center(), 
+                          splash_info.get_size(), [WIDTH / 2, HEIGHT / 2], 
+                          splash_info.get_size())
+
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+        
+# timer handler that spawns a rock    
+def rock_spawner():
+    
+    if started:
+        if len(rock_group) != 12:
+            rock_pos = [random.randrange(0, WIDTH), random.randrange(0, HEIGHT)]
+            
+            if not (dist(my_ship.get_position(), rock_pos) <= 10):
+                rock_vel = [(random.random() * .6 - .3) + score/5.0 , (random.random() * .6 - .3) + score/5.0]
+                rock_avel = random.random() * .2 - .1
+                a_rock = Sprite(rock_pos, rock_vel, 0, rock_avel, asteroid_image, asteroid_info)
+
+                rock_group.add(a_rock)
+
+#-------------------------------------------------------------------
+#-------------------------------------------------------------------
+        
+# initialize stuff
+frame = simplegui.create_frame("Asteroids", WIDTH, HEIGHT)
+
+#-------------------------------------------------------------------
+
+# initialize ship and two sprites
+my_ship = Ship([WIDTH / 2, HEIGHT / 2], [0, 0], 0, ship_image, ship_info)
+rock_group = set([])
+missile_group = set([])
+explosion_group = set([])
+#-------------------------------------------------------------------
+
+
+# register handlers
+frame.set_keyup_handler(keyup)
+frame.set_keydown_handler(keydown)
+frame.set_mouseclick_handler(click)
+frame.set_draw_handler(draw)
+#-------------------------------------------------------------------
+
+timer = simplegui.create_timer(1000.0, rock_spawner)
+
+#-------------------------------------------------------------------
+# get things rolling
+timer.start()
+frame.start()