init commit

Author: Sentdex

Chapter 6/6-1.py

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+import pygame
+from pygame.locals import *
+from sys import exit
+
+pygame.init()
+screen = pygame.display.set_mode((640, 480), 0, 32)
+
+font = pygame.font.SysFont("arial", 32);
+font_height = font.get_linesize()
+
+while True:
+
+    for event in pygame.event.get():
+        if event.type == QUIT:
+            pygame.quit()
+            exit()
+
+    screen.fill((255, 255, 255))
+
+    pressed_key_text = []
+    pressed_keys = pygame.key.get_pressed()
+    y = font_height
+
+
+    for key_constant, pressed in enumerate(pressed_keys):
+        if pressed:
+            key_name = pygame.key.name(key_constant)
+            text_surface = font.render(key_name+" pressed", True, (0,0,0))
+            screen.blit(text_surface, (8, y))
+            y+= font_height
+
+        pygame.display.update()

Chapter 6/6-2.py

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+import pygame
+from pygame.locals import *
+from sys import exit
+from gameobjects.vector2 import Vector2
+
+background_image_filename = 'sushiplate.jpg'
+sprite_image_filename = 'fugu.png'
+
+pygame.init()
+
+screen = pygame.display.set_mode((640, 480), 0, 32)
+background = pygame.image.load(background_image_filename).convert()
+sprite = pygame.image.load(sprite_image_filename).convert_alpha()
+
+clock = pygame.time.Clock()
+
+sprite_pos = Vector2(200, 150)
+sprite_speed = 300
+
+while True:
+
+    for event in pygame.event.get():
+        if event.type == QUIT:
+            pygame.quit()
+            exit()
+
+    pressed_keys = pygame.key.get_pressed()
+
+    key_direction = Vector2(0, 0)
+    
+    if pressed_keys[K_LEFT]:
+        key_direction.x = -1
+    elif pressed_keys[K_RIGHT]:
+         key_direction.x = +1
+    if pressed_keys[K_UP]:
+        key_direction.y = -1
+    elif pressed_keys[K_DOWN]:
+        key_direction.y = +1
+
+    key_direction.normalize()
+
+    screen.blit(background, (0,0))
+    screen.blit(sprite, (sprite_pos.x,sprite_pos.y))
+
+    time_passed = clock.tick(30)
+    time_passed_seconds = time_passed / 1000.0
+
+    sprite_pos += key_direction * sprite_speed * time_passed_seconds
+
+    pygame.display.update()

Chapter 6/6-3.py

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+import pygame
+from pygame.locals import *
+from sys import exit
+from gameobjects.vector2 import Vector2
+from math import *
+
+background_image_filename = 'sushiplate.jpg'
+sprite_image_filename = 'fugu.png'
+
+pygame.init()
+
+screen = pygame.display.set_mode((640, 480), 0, 32)
+
+background = pygame.image.load(background_image_filename).convert()
+sprite = pygame.image.load(sprite_image_filename).convert_alpha()
+
+clock = pygame.time.Clock()
+
+sprite_pos = Vector2(200, 150)
+sprite_speed = 300
+sprite_rotation = 0
+sprite_rotation_speed = 360 # Degrees per second
+
+while True:
+
+    for event in pygame.event.get():
+        if event.type == QUIT:
+            pygame.quit()
+            exit()
+    pressed_keys = pygame.key.get_pressed()
+
+    rotation_direction = 0.
+    movement_direction = 0.
+
+    if pressed_keys[K_LEFT]:
+        rotation_direction = +1.0
+    if pressed_keys[K_RIGHT]:
+        rotation_direction = -1.0
+    if pressed_keys[K_UP]:
+        movement_direction = +1.0
+    if pressed_keys[K_DOWN]:
+        movement_direction = -1.0
+
+    screen.blit(background, (0,0))
+
+    rotated_sprite = pygame.transform.rotate(sprite, sprite_rotation)
+    w, h = rotated_sprite.get_size()
+    sprite_draw_pos = Vector2(sprite_pos.x-w/2, sprite_pos.y-h/2)
+    screen.blit(rotated_sprite, (sprite_draw_pos.x,sprite_draw_pos.y))
+
+    time_passed = clock.tick()
+    time_passed_seconds = time_passed / 1000.0
+
+    sprite_rotation += rotation_direction * sprite_rotation_speed * time_passed_seconds
+
+    heading_x = sin(sprite_rotation*pi/180.0)
+    heading_y = cos(sprite_rotation*pi/180.0)
+    heading = Vector2(heading_x, heading_y)
+    heading *= movement_direction
+
+    sprite_pos+= heading * sprite_speed * time_passed_seconds
+
+    pygame.display.update()

Chapter 6/6-4.py

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+import pygame
+from pygame.locals import *
+from sys import exit
+from gameobjects.vector2 import Vector2
+from math import *
+
+background_image_filename = 'sushiplate.jpg'
+sprite_image_filename = 'fugu.png'
+
+
+pygame.init()
+screen = pygame.display.set_mode((640, 480), 0, 32)
+
+background = pygame.image.load(background_image_filename).convert()
+sprite = pygame.image.load(sprite_image_filename).convert_alpha()
+
+clock = pygame.time.Clock()
+
+pygame.mouse.set_visible(False)
+pygame.event.set_grab(True)
+
+sprite_pos = Vector2(200, 150)
+sprite_speed = 300.
+sprite_rotation = 0.
+sprite_rotation_speed = 360. # Degrees per second
+
+while True:
+
+    for event in pygame.event.get():
+        if event.type == QUIT:
+            pygame.quit()
+            exit()
+        if event.type == KEYDOWN:
+            if event.key == K_ESCAPE:
+                pygame.quit()
+                exit()
+
+
+    pressed_keys = pygame.key.get_pressed()
+    pressed_mouse = pygame.mouse.get_pressed()
+
+    rotation_direction = 0.
+    movement_direction = 0.
+
+    rotation_direction = pygame.mouse.get_rel()[0] / 3.
+
+    if pressed_keys[K_LEFT]:
+        rotation_direction = +1.
+    if pressed_keys[K_RIGHT]:
+        rotation_direction = -1.
+    if pressed_keys[K_UP] or pressed_mouse[0]:
+        movement_direction = +1.
+    if pressed_keys[K_DOWN] or pressed_mouse[2]:
+        movement_direction = -1.
+    screen.blit(background, (0,0))
+
+    rotated_sprite = pygame.transform.rotate(sprite, sprite_rotation)
+    w, h = rotated_sprite.get_size()
+    sprite_draw_pos = Vector2(sprite_pos.x-w/2, sprite_pos.y-h/2)
+    screen.blit(rotated_sprite, (sprite_draw_pos.x, sprite_draw_pos.y))
+
+    time_passed = clock.tick()
+    time_passed_seconds = time_passed / 1000.0
+
+    sprite_rotation += rotation_direction * sprite_rotation_speed * time_passed_seconds
+
+    heading_x = sin(sprite_rotation*pi/180.)
+    heading_y = cos(sprite_rotation*pi/180.)
+    heading = Vector2(heading_x, heading_y)
+    heading *= movement_direction
+
+    sprite_pos+= heading * sprite_speed * time_passed_seconds
+
+    pygame.display.update()

Chapter 6/6-5.py

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+import pygame
+from pygame.locals import *
+from sys import exit
+
+pygame.init()
+
+SCREEN_SIZE = (640, 480)
+screen = pygame.display.set_mode( SCREEN_SIZE, 0, 32)
+
+font = pygame.font.SysFont("arial", 16);
+font_height = font.get_linesize()
+event_text = []
+
+joysticks = []
+for joystick_no in range(pygame.joystick.get_count()):
+    stick = pygame.joystick.Joystick(joystick_no)
+    stick.init()
+    joysticks.append(stick)
+
+
+while True:
+
+    event = pygame.event.wait()
+    if event.type in (JOYAXISMOTION,
+                      JOYBALLMOTION,
+                      JOYHATMOTION,
+                      JOYBUTTONUP,
+                      JOYBUTTONDOWN):
+       event_text.append(str(event))
+
+    
+    event_text = event_text[int(-SCREEN_SIZE[1]/font_height):]
+
+    if event.type == QUIT:
+        pygame.quit()
+        exit()
+
+    screen.fill((255, 255, 255))
+
+    y = SCREEN_SIZE[1]-font_height
+    for text in reversed(event_text):
+        screen.blit( font.render(text, True, (0, 0, 0)), (0, y) )
+        y-=font_height
+
+    pygame.display.update()

Chapter 6/6-6.py

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+import pygame
+from pygame.locals import *
+from sys import exit
+from gameobjects.vector2 import Vector2
+
+picture_file = 'map.jpg'
+
+pygame.init()
+screen = pygame.display.set_mode((640, 480), 0, 32)
+
+picture = pygame.image.load(picture_file).convert()
+picture_pos = Vector2(0, 0)
+scroll_speed = 1000.
+
+clock = pygame.time.Clock()
+
+joystick = None
+if pygame.joystick.get_count() > 0:
+    joystick = pygame.joystick.Joystick(0)
+    joystick.init()
+
+if joystick is None:
+    print("Sorry, you need a joystick for this!")
+    pygame.quit()
+    exit()
+
+
+while True:
+
+    for event in pygame.event.get():
+        if event.type == QUIT:
+            pygame.quit()
+            exit()
+
+    scroll_direction = Vector2(*joystick.get_hat(0))
+    scroll_direction.normalize()
+
+    screen.fill((255, 255, 255))
+    screen.blit(picture, (-picture_pos.x, picture_pos.y))
+
+    time_passed = clock.tick()
+    time_passed_seconds = time_passed / 1000.0
+
+    picture_pos += scroll_direction * scroll_speed * time_passed_seconds 
+
+    pygame.display.update()

Chapter 6/6-7.py

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+import pygame
+from pygame.locals import *
+from sys import exit
+from gameobjects.vector2 import Vector2
+
+picture_file = 'map.jpg'
+
+pygame.init()
+screen = pygame.display.set_mode((640, 480), 0, 32)
+
+picture = pygame.image.load(picture_file).convert()
+picture_pos = Vector2(0, 0)
+scroll_speed = 1000.
+
+clock = pygame.time.Clock()
+
+joystick = None
+if pygame.joystick.get_count() > 0:
+    joystick = pygame.joystick.Joystick(0)
+    joystick.init()
+
+if joystick is None:
+    print("Sorry, you need a joystick for this!")
+    pygame.quit()
+    exit()
+
+while True:
+
+    for event in pygame.event.get():
+        if event.type == QUIT:
+            pygame.quit()
+            exit()
+
+
+    scroll_direction = Vector2(0, 0)
+    if joystick.get_numhats() > 0:
+        scroll_direction = Vector2(*joystick.get_hat(0))
+        scroll_direction.normalize()
+
+    analog_scroll = Vector2(0, 0)
+    if joystick.get_numaxes() >= 2:
+        axis_x = joystick.get_axis(0)
+        axis_y = joystick.get_axis(1)
+        analog_scroll = Vector2(axis_x, -axis_y)
+
+    screen.fill((255, 255, 255))
+    screen.blit(picture, (-picture_pos.x, picture_pos.y))
+
+    time_passed = clock.tick()
+    time_passed_seconds = time_passed / 1000.0
+
+    picture_pos += scroll_direction * scroll_speed * time_passed_seconds
+    picture_pos += analog_scroll * scroll_speed * time_passed_seconds
+
+    pygame.display.update()