Prg2/design patterns 1 - ประวัติรุ่นแก้ไข

Jittat: /* Codes */

2021-03-16T02:40:46Z

Codes

Jittat: /* Basic information */

2021-03-15T23:56:13Z

Basic information

Jittat: /* Command Pattern */

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Command Pattern

Jittat: /* State Pattern */

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State Pattern

Jittat: /* Command Pattern */

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Command Pattern

Jittat: /* Observer Pattern (functions) */

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Observer Pattern (functions)

Jittat: /* Observer Pattern */

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Observer Pattern

Jittat: /* Basic information */

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Basic information

Jittat: /* Basic information */

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Basic information

Jittat: สร้างหน้าด้วย ": ''This is part of Programming 2 2563'' == Basic information == * [https://gameprogrammingpatterns.com/ Game Programming Patterns] by Robert Nystr..."

2021-03-15T23:28:04Z

สร้างหน้าด้วย ": ''This is part of Programming 2 2563'' == Basic information == * [https://gameprogrammingpatterns.com/ Game Programming Patterns] by Robert Nystr..."

หน้าใหม่

: ''This is part of [[Programming 2 2563]]''

== Basic information ==

* [https://gameprogrammingpatterns.com/ Game Programming Patterns] by Robert Nystrom
* [https://refactoring.guru/ Refactoring.Guru]

@@ แถว 222: / แถว 222: @@
 # ...
 </syntaxhighlight>
 === State Pattern ===

@@ แถว 11: / แถว 11: @@
 ** State: [https://en.wikipedia.org/wiki/State_pattern wikipedia], [https://gameprogrammingpatterns.com/state.html game programmming patterns]
 ** Singleton: [https://en.wikipedia.org/wiki/Singleton_pattern wikipedia], [https://gameprogrammingpatterns.com/singleton.html game programmming patterns]
 == Codes ==

@@ แถว 120: / แถว 120: @@
 === Command Pattern ===
 <syntaxhighlight lang="python">
 class DotUpdateCommand:
      def __init__(self, dot):
@@ แถว 211: / แถว 213: @@
      def on_key_pressed(self, event):
          self.is_reversed = True
 </syntaxhighlight>

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 23:45, 15 มีนาคม 2564
แถว 214:		แถว 214:

	=== State Pattern ===		=== State Pattern ===
		+	<syntaxhighlight lang="python">
		+	import math
		+
		+	# ...
		+
		+	SPEED = 10
		+
		+	DIR_UP = 1
		+	DIR_RIGHT = 2
		+	DIR_DOWN = 3
		+	DIR_LEFT = 4
		+
		+	DIR_OFFSETS = {
		+	DIR_UP: (0,-1),
		+	DIR_RIGHT: (1,0),
		+	DIR_DOWN: (0,1),
		+	DIR_LEFT: (-1,0),
		+	}
		+
		+	class DotNormalState:
		+	def __init__(self, dot):
		+	self.dot = dot
		+
		+	def update(self):
		+	dot = self.dot
		+	dot.x += SPEED * DIR_OFFSETS[dot.direction][0]
		+	dot.y += SPEED * DIR_OFFSETS[dot.direction][1]
		+	dot.wrap_position()
		+
		+	class DotExcitedState:
		+	def __init__(self, dot):
		+	self.dot = dot
		+	self.counter = 0
		+
		+	def update(self):
		+	dot = self.dot
		+	dot.x += 3 * SPEED * DIR_OFFSETS[dot.direction][0]
		+	dot.y += 3 * SPEED * DIR_OFFSETS[dot.direction][1]
		+	dot.wrap_position()
		+
		+	self.counter += 1
		+
		+	if self.counter == 100:
		+	dot.state = DotNormalState(dot)
		+
		+	class RedDot(Sprite):
		+	instance = None
		+
		+	@staticmethod
		+	def get_instance(app):
		+	if not RedDot.instance:
		+	RedDot.instance = RedDot(app, 'images/reddot.png')
		+	return RedDot.instance
		+
		+	def random_position(self):
		+	self.x = randint(20, CANVAS_WIDTH - 20)
		+	self.y = randint(20, CANVAS_HEIGHT - 20)
		+
		+
		+	class Dot(Sprite):
		+	def init_element(self):
		+	self.direction = DIR_UP
		+	self.state = DotNormalState(self)
		+
		+	def wrap_position(self):
		+	if self.x < 0:
		+	self.x = CANVAS_WIDTH
		+	if self.x > CANVAS_WIDTH:
		+	self.x = 0
		+	if self.y < 0:
		+	self.y = CANVAS_HEIGHT
		+	if self.y > CANVAS_HEIGHT:
		+	self.y = 0
		+
		+	def get_excited(self):
		+	self.state = DotExcitedState(self)
		+
		+	def update(self):
		+	self.state.update()
		+
		+	def is_close_to(self, dot):
		+	dist = math.sqrt((self.x - dot.x) 2 + (self.y - dot.y) 2)
		+	return dist < 10
		+
		+
		+	class FlappyGame(GameApp):
		+	def create_sprites(self):
		+	self.dot = Dot(self, 'images/dot.png', CANVAS_WIDTH // 2, CANVAS_HEIGHT // 2)
		+
		+	self.red_dot = RedDot.get_instance(self)
		+	self.red_dot.random_position()
		+
		+	self.elements.append(self.dot)
		+	self.elements.append(self.red_dot)
		+
		+	def init_game(self):
		+	self.create_sprites()
		+
		+	def post_update(self):
		+	if self.dot.is_close_to(self.red_dot):
		+	self.dot.get_excited()
		+
		+	self.red_dot.random_position()
		+
		+	def on_key_pressed(self, event):
		+	if self.dot.direction == DIR_UP:
		+	self.dot.direction = DIR_RIGHT
		+	else:
		+	self.dot.direction = DIR_UP
		+
		+	# ...
		+	</syntaxhighlight>

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 23:43, 15 มีนาคม 2564
แถว 119:		แถว 119:

	=== Command Pattern ===		=== Command Pattern ===
		+	<syntaxhighlight lang="python">
		+	class DotUpdateCommand:
		+	def __init__(self, dot):
		+	self.dot = dot
		+
		+	def excute(self):
		+	self.old_state = self.dot.get_state()
		+	self.dot.real_update()
		+
		+	def undo(self):
		+	self.dot.set_state(self.old_state)
		+
		+	class Dot(Sprite):
		+	def init_element(self):
		+	self.vx = 0
		+	self.vy = 0
		+
		+	def random_speed(self):
		+	self.vx = 5 * randint(-5,5)
		+	self.vy = -5 * randint(1,10)
		+
		+	def bounce(self):
		+	if (self.x > CANVAS_WIDTH) or (self.x < 0):
		+	self.vx = -self.vx
		+
		+	if self.y > CANVAS_HEIGHT:
		+	self.vy = -0.85 * self.vy
		+
		+	def real_update(self):
		+	self.x += self.vx
		+	self.y += self.vy
		+	self.vy += GRAVITY
		+
		+	self.bounce()
		+
		+	def get_update_command(self):
		+	return DotUpdateCommand(self)
		+
		+	def get_state(self):
		+	return (self.x, self.y, self.vx, self.vy)
		+
		+	def set_state(self, state):
		+	self.x, self.y, self.vx, self.vy = state
		+
		+	class FlappyGame(GameApp):
		+	def create_sprites(self):
		+	self.dots = []
		+	for i in range(NUM_BALLS):
		+	dot = Dot(self, 'images/dot.png', CANVAS_WIDTH // 2, CANVAS_HEIGHT // 2)
		+	dot.random_speed()
		+
		+	self.dots.append(dot)
		+	self.elements.append(dot)
		+
		+	def init_game(self):
		+	self.create_sprites()
		+
		+	self.commands = []
		+	self.is_reversed = False
		+	self.cmd_index = 0
		+
		+	def reverse_update(self):
		+	current_commands = self.commands[self.cmd_index]
		+
		+	for c in reversed(current_commands):
		+	c.undo()
		+
		+	self.cmd_index -= 1
		+	if self.cmd_index < 0:
		+	self.is_reversed = False
		+	self.commands = []
		+
		+	def create_update_commands(self):
		+	new_commands = []
		+	for dot in self.dots:
		+	new_commands.append(dot.get_update_command())
		+	return new_commands
		+
		+	def pre_update(self):
		+	if self.is_reversed:
		+	self.reverse_update()
		+	return
		+
		+	new_commands = self.create_update_commands()
		+	for c in new_commands:
		+	c.execute()
		+
		+	self.commands.append(new_commands)
		+	self.cmd_index = len(self.commands) - 1
		+
		+	def on_key_pressed(self, event):
		+	self.is_reversed = True
		+	</syntaxhighlight>

	=== State Pattern ===		=== State Pattern ===

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 23:32, 15 มีนาคม 2564
แถว 11:		แถว 11:
	** State: [https://en.wikipedia.org/wiki/State_pattern wikipedia], [https://gameprogrammingpatterns.com/state.html game programmming patterns]		** State: [https://en.wikipedia.org/wiki/State_pattern wikipedia], [https://gameprogrammingpatterns.com/state.html game programmming patterns]
	** Singleton: [https://en.wikipedia.org/wiki/Singleton_pattern wikipedia], [https://gameprogrammingpatterns.com/singleton.html game programmming patterns]		** Singleton: [https://en.wikipedia.org/wiki/Singleton_pattern wikipedia], [https://gameprogrammingpatterns.com/singleton.html game programmming patterns]
		+
		+	== Codes ==
		+
		+	=== Observer Pattern ===
		+
		+	=== Command Pattern ===
		+
		+	=== State Pattern ===

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 23:31, 15 มีนาคม 2564
แถว 5:		แถว 5:
	* [https://gameprogrammingpatterns.com/ Game Programming Patterns] by Robert Nystrom		* [https://gameprogrammingpatterns.com/ Game Programming Patterns] by Robert Nystrom
	* [https://refactoring.guru/ Refactoring.Guru]		* [https://refactoring.guru/ Refactoring.Guru]
		+
		+	* Patterns covered this week
		+	** Observer: [https://en.wikipedia.org/wiki/Observer_pattern wikipedia], [https://gameprogrammingpatterns.com/observer.html game programmming patterns]
		+	** Command: [https://en.wikipedia.org/wiki/Command_pattern wikipedia], [https://gameprogrammingpatterns.com/command.html game programmming patterns]
		+	** State: [https://en.wikipedia.org/wiki/State_pattern wikipedia], [https://gameprogrammingpatterns.com/state.html game programmming patterns]
		+	** Singleton: [https://en.wikipedia.org/wiki/Singleton_pattern wikipedia], [https://gameprogrammingpatterns.com/singleton.html game programmming patterns]