Prg2/pacman (applying design patterns) - ประวัติรุ่นแก้ไข

Jittat: /* Optional work */

2021-03-17T20:05:37Z

Optional work

Jittat: /* Applying the State pattern */

2021-03-17T20:04:55Z

Applying the State pattern

Jittat: /* Applying the State pattern */

2021-03-17T20:03:10Z

Applying the State pattern

Jittat: /* Dev 2: State pattern */

2021-03-17T20:02:55Z

Dev 2: State pattern

Jittat: /* Applying the State pattern */

2021-03-17T19:49:10Z

Applying the State pattern

Jittat: /* Optional work */

2021-03-17T19:45:55Z

Optional work

Jittat: /* Dev 2: State pattern */

2021-03-17T19:44:25Z

Dev 2: State pattern

Jittat: /* Dev 2: State pattern */

2021-03-17T19:30:50Z

Dev 2: State pattern

Jittat: /* Dev 2: State pattern */

2021-03-17T19:27:28Z

Dev 2: State pattern

Jittat: /* Dev 1: Flyweight pattern */

2021-03-17T19:24:52Z

Dev 1: Flyweight pattern

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 20:05, 17 มีนาคม 2564
แถว 647:		แถว 647:
	* It would be nice to have different image for the two Pacman's.		* It would be nice to have different image for the two Pacman's.
	* It would also be nice to have different sprice when the pacman runs at super speed.		* It would also be nice to have different sprice when the pacman runs at super speed.
		+	* Add wandering ghosts.
		+	* Add super dots (for bonus)

@@ แถว 506: / แถว 506: @@
 <syntaxhighlight lang="python">
-    ############ CAREFUL!! this is for analyzing the code... not adding codes  #########
+############ CAREFUL!! this is for analyzing the code... not adding codes  #########
      def update(self):
@@ แถว 562: / แถว 565: @@
 <syntaxhighlight lang="python">
      def update(self):
          if self.maze.is_at_center(self.x, self.y):

@@ แถว 483: / แถว 483: @@
 '''Your task''': You have to implement the State pattern for the Pacman
 }}
 : '''Notes''': this will be a challenging task.  If you haven't watch the last clip on State pattern, it would be nice to review that.

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 20:02, 17 มีนาคม 2564
แถว 489:		แถว 489:
	We would add two states:		We would add two states:

		+	<syntaxhighlight lang="python">
		+	class NormalPacmanState:
		+	def __init__(self, pacman):
		+	self.pacman = pacman
		+
		+	# ...

		+	class SuperPacmanState:
		+	def __init__(self, pacman):
		+	self.pacman = pacman
		+
		+	# ...

		+	</syntaxhighlight>
		+
		+	To apply the state pattern, we need to figure out what each state can do. If you look at the <tt>update</tt> method. There are two operations that depends on the states of the Pacman, as noted below:
		+
		+	<syntaxhighlight lang="python">
		+	############ CAREFUL!! this is for analyzing the code... not adding codes #########
		+
		+	def update(self):
		+	if self.maze.is_at_center(self.x, self.y):
		+	r, c = self.maze.xy_to_rc(self.x, self.y)
		+
		+	if self.maze.has_dot_at(r, c):
		+	self.maze.eat_dot_at(r, c)
		+
		+	############################################
		+	############################################
		+	## ##
		+	## 1st operation: randomly change states ##
		+	## ##
		+	############################################
		+	############################################
		+
		+	if random.random() < 0.1:
		+	if not self.is_super_speed:
		+	self.is_super_speed = True
		+	self.super_speed_counter = 0
		+
		+	###########################################
		+	###########################################
		+
		+	if self.maze.is_movable_direction(r, c, self.next_direction):
		+	self.direction = self.next_direction
		+	else:
		+	self.direction = DIR_STILL
		+
		+	############################################
		+	############################################
		+	## ##
		+	## 2nd operation: move the pacman ##
		+	## ##
		+	############################################
		+	############################################
		+
		+	if self.is_super_speed:
		+	speed = 2 * PACMAN_SPEED
		+	self.super_speed_counter += 1
		+	if self.super_speed_counter > 50:
		+	self.is_super_speed = False
		+	else:
		+	speed = PACMAN_SPEED
		+
		+	self.x += speed * DIR_OFFSET[self.direction][0]
		+	self.y += speed * DIR_OFFSET[self.direction][1]
		+
		+	###########################################
		+	###########################################
		+	</syntaxhighlight>
		+
		+	Therefore, we would encapsulate both operations in the state, and change <tt>update</tt> to:
		+
		+	<syntaxhighlight lang="python">
		+	def update(self):
		+	if self.maze.is_at_center(self.x, self.y):
		+	r, c = self.maze.xy_to_rc(self.x, self.y)
		+
		+	if self.maze.has_dot_at(r, c):
		+	self.maze.eat_dot_at(r, c)
		+
		+	## Notes: 1st operation
		+	##
		+	self.state.random_upgrade()
		+
		+	# ...
		+
		+	## Notes: 2nd operation
		+	##
		+	self.state.move_pacman()
		+	</syntaxhighlight>
		+
		+	We start with <tt>NormalPacmanState</tt>, in <tt>__init__</tt>
		+
		+	<syntaxhighlight lang="python">
		+	class Pacman(Sprite):
		+	def __init__(self, app, maze, r, c):
		+	# ...
		+
		+	# DELETE: you can delete these attributes
		+	# self.is_super_speed = False
		+	# self.super_speed_counter = 0
		+
		+	# ...
		+
		+	self.state = NormalPacmanState(self)
		+	</syntaxhighlight>
		+
		+	Finally, let's implement the states:
		+
		+	<syntaxhighlight lang="python">
		+	class NormalPacmanState:
		+	def __init__(self, pacman):
		+	self.pacman = pacman
		+
		+	def random_upgrade(self):
		+	if random.random() < 0.1:
		+	self.pacman.state = SuperPacmanState(self.pacman)
		+
		+	def move_pacman(self):
		+	# TODO:
		+	# - update the pacman's location with normal speed
		+	pass
		+
		+
		+	class SuperPacmanState:
		+	def __init__(self, pacman):
		+	self.pacman = pacman
		+	self.counter = 0
		+
		+	def random_upgrade(self):
		+	pass
		+
		+	def move_pacman(self):
		+	# TODO:
		+	# - update the pacman's location with super speed
		+	# - update the counter, if the counter >= 50, set state back to NormalPacmanState
		+	pass
		+	</syntaxhighlight>

	Try to see the code still works.		Try to see the code still works.

←รุ่นแก้ไขก่อนหน้า	รุ่นแก้ไขเมื่อ 19:49, 17 มีนาคม 2564
แถว 485:	แถว 485:


	+	: '''Notes''': this will be a challenging task. If you haven't watch the last clip on State pattern, it would be nice to review that.
	+
	+	We would add two states:

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 19:45, 17 มีนาคม 2564
แถว 498:		แถว 498:

	== Optional work ==		== Optional work ==
		+	You can also work on the following tasks to improve the game.
		+
		+	* It would be nice to have different image for the two Pacman's.
		+	* It would also be nice to have different sprice when the pacman runs at super speed.

@@ แถว 419: / แถว 419: @@
 : Read about [https://gameprogrammingpatterns.com/state.html the pattern here].
-We will make the game a bit more fun to play.  Currently, both Pacman runs at the same speed.  We will randomly upgrade a Pacman when it eats a dot so that it moves twice faster.
+We will make the game a bit more fun to play.  Currently, both Pacman runs at the same speed.  We will randomly upgrade a Pacman when it eats a dot so that it moves twice faster.   This upgrade would last for 50 steps. First, let's get the feature done without the State pattern.
 {{กล่องฟ้า|
@@ แถว 429: / แถว 484: @@
 }}

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 19:30, 17 มีนาคม 2564
แถว 418:		แถว 418:

	: Read about [https://gameprogrammingpatterns.com/state.html the pattern here].		: Read about [https://gameprogrammingpatterns.com/state.html the pattern here].
		+
		+	We will make the game a bit more fun to play. Currently, both Pacman runs at the same speed. We will randomly upgrade a Pacman when it eats a dot so that it moves twice faster.
		+
		+
		+
		+

	{{กล่องฟ้า\|		{{กล่องฟ้า\|

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 19:27, 17 มีนาคม 2564
แถว 418:		แถว 418:

	: Read about [https://gameprogrammingpatterns.com/state.html the pattern here].		: Read about [https://gameprogrammingpatterns.com/state.html the pattern here].
		+
		+	{{กล่องฟ้า\|
		+	'''Your task''': You have to implement the State pattern for the Pacman
		+	}}
		+
		+	'''Git branch:''' You should start a new branch to work on this pattern.
		+
		+
		+
		+
		+
		+	Try to see the code still works.
		+
		+	{{gitcomment\|Commit your work if it looks OK.}}
		+
		+	'''You are done with the feature.''' Don't forget to merge to the main branch and push. (And fix the conflict, if any.)
		+
		+	{{gitcomment\|Merge your work to main.}}

	== Optional work ==		== Optional work ==

←รุ่นแก้ไขก่อนหน้า		รุ่นแก้ไขเมื่อ 19:24, 17 มีนาคม 2564
แถว 412:		แถว 412:

	'''You are done with the feature.''' Don't forget to merge to the main branch and push. (And fix the conflict, if any.)		'''You are done with the feature.''' Don't forget to merge to the main branch and push. (And fix the conflict, if any.)
		+
		+	{{gitcomment\|Merge your work to main.}}

	== Dev 2: State pattern ==		== Dev 2: State pattern ==