view demos/shooter/scripts/ships/enemies.py @ 477:6b33d80b468b

Projectiles are now part of the scene. Cleaned up the scene update() function. Moved garbage collection to the beginning of the frame. Introduced global object types. Projectiles now only check for collisions in a limited number of scene nodes rather than the entire screen.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 22 Apr 2010 19:52:34 +0000
parents afde89c1d50b
children ab28994820dd
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# -*- coding: utf-8 -*-

# ####################################################################
#  Copyright (C) 2005-2009 by the FIFE team
#  http://www.fifengine.de
#  This file is part of FIFE.
#
#  FIFE is free software; you can redistribute it and/or
#  modify it under the terms of the GNU Lesser General Public
#  License as published by the Free Software Foundation; either
#  version 2.1 of the License, or (at your option) any later version.
#
#  This library is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#  Lesser General Public License for more details.
#
#  You should have received a copy of the GNU Lesser General Public
#  License along with this library; if not, write to the
#  Free Software Foundation, Inc.,
#  51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
# ####################################################################

from fife import fife
from scripts.ships.shipbase import *
from scripts.common.baseobject import *
from scripts.common.helpers import Rect
from scripts.weapons import *


class EnemyActionListener(ShipActionListener):
	def __init__(self, ship):
		super(EnemyActionListener, self).__init__(ship)

	def onInstanceActionFinished(self, instance, action):
		super(EnemyActionListener, self).onInstanceActionFinished(instance, action)


class BossActionListener(ShipActionListener):
	def __init__(self, ship):
		super(BossActionListener, self).__init__(ship)

	def onInstanceActionFinished(self, instance, action):
		super(BossActionListener, self).onInstanceActionFinished(instance, action)

		if action.getId() == 'explode':
			self._ship.endLevel()

				
class Saucer1(Ship):
	def __init__(self, scene, name, instance, findInstance=True):
		super(Saucer1, self).__init__(scene, name, findInstance)
		self._instance = instance
		self._type = SHTR_ENEMYSHIP
		self._dir = 0
		self._time = 500
		self.width = 0.2
		self.height = 0.075
		self.velocity.x = -0.5
		
		self.weapon = Cannon(self._scene, self, 1000)
		self.weapon.projectilevelocity = 0.4
		
		self._actionlistener = EnemyActionListener(self)
		
		self.hitpoints = 1
		self.scorevalue = 50
				
	def update(self):	
		if self._dir == 1:
			self.applyThrust(fife.DoublePoint(0,-0.5))
		elif self._dir == 0:
			self.applyThrust(fife.DoublePoint(0,0.5))
					
		if self._time >= 1000:
			if self._dir == 1:
				self._dir = 0
			elif self._dir == 0:
				self._dir = 1
				
			self._time = 0
		
		self._time += self._scene.timedelta
		
		super(Saucer1, self).update()
	
		self.fire(fife.DoublePoint(-1,0))		
		
		
class Saucer2(Ship):
	def __init__(self, scene, name, instance, findInstance=True):
		super(Saucer2, self).__init__(scene, name, findInstance)
		self._instance = instance
		self._type = SHTR_ENEMYSHIP
		self._dir = 0
		self._time = 1000
		self.width = 0.2
		self.height = 0.2
		self.velocity.x = -0.1
		
		self.weapon = Cannon(self._scene, self, 2000)
		self.weapon.projectilevelocity = 0.4
		
		self._actionlistener = EnemyActionListener(self)
		
		self.hitpoints = 2
		self.scorevalue = 100

	def applyHit(self, hp):
		self.flash(1)
		super(Saucer2, self).applyHit(hp)
		
	def update(self):	
		if self._dir == 1:
			self.applyThrust(fife.DoublePoint(0,-0.25))
		elif self._dir == 0:
			self.applyThrust(fife.DoublePoint(0,0.25))
					
		if self._time >= 2000:
			if self._dir == 1:
				self._dir = 0
			elif self._dir == 0:
				self._dir = 1
				
			self._time = 0
		
		self._time += self._scene.timedelta
		
		super(Saucer2, self).update()
		
		self.fire(fife.DoublePoint(-1,0))		
		
class DiagSaucer(Ship):
	def __init__(self, scene, name, direction, instance, findInstance=True):
		super(DiagSaucer, self).__init__(scene, name, findInstance)
		self._instance = instance
		self._type = SHTR_ENEMYSHIP
		self.width = 0.2
		self.height = 0.075
		
		if direction == 0:
			self._ythrust = 0.25
		else:
			self._ythrust = -0.25
		
		self.weapon = Cannon(self._scene, self, 2000)
		self.weapon.projectilevelocity = 0.4
		
		self._actionlistener = EnemyActionListener(self)
		
		self.hitpoints = 1
		self.scorevalue = 50
				
	def update(self):	
		self.applyThrust(fife.DoublePoint(-0.25,self._ythrust))
		super(DiagSaucer, self).update()

		self.fire(fife.DoublePoint(-1,0))		

		
class Streaker(Ship):
	def __init__(self, scene, name, instance, findInstance=True):
		super(Streaker, self).__init__(scene, name, findInstance)
		self._instance = instance
		self._type = SHTR_ENEMYSHIP
		self.width = 0.2
		self.height = 0.2		
		
		self._maxvelocity = 2.0
		
		self.weapon = FireBall(self._scene, self, 2000)
		self.weapon.projectilevelocity = 0.25
		
		self._actionlistener = EnemyActionListener(self)
		
		self.hitpoints = 2
		self.scorevalue = 150

	def applyHit(self, hp):
		self.flash(1)
		super(Streaker, self).applyHit(hp)
		
	def update(self):	
		self.applyThrust(fife.DoublePoint(-0.40,0))
		super(Streaker, self).update()

		playerloc = self._scene.player.location.getExactLayerCoordinates()
		enemyloc = self.location.getExactLayerCoordinates()
		
		playerloc.x -= enemyloc.x
		playerloc.y -= enemyloc.y
		
		self.fire(fife.DoublePoint(playerloc.x,playerloc.y))

		
class Boss(Ship):
	def __init__(self, scene, name, instance, findInstance=True):
		super(Boss, self).__init__(scene, name, findInstance)
		self._instance = instance
		self._type = SHTR_LASTBOSS
		self.width = 0.85
		self.height = 0.25		
		
		self._maxvelocity = 2.0
		
		self.weapon = FireBall(self._scene, self, 1000)
		self.weapon.projectilevelocity = 0.5
		
		self._actionlistener = BossActionListener(self)
		
		self.hitpoints = 30
		self.scorevalue = 1000
		
	def endLevel(self):
		self._scene.endLevel()
		
	def update(self):
		super(Boss, self).update()
		
		playerloc = self._scene.player.location.getExactLayerCoordinates()
		bossloc = self.location.getExactLayerCoordinates()
		
		playerloc.x -= bossloc.x
		playerloc.y -= bossloc.y
		
		self.fire(fife.DoublePoint(playerloc.x,playerloc.y))		
		
		
	def applyHit(self, hp):
		self.flash(2)
		super(Boss, self).applyHit(hp)
		
		if self.hitpoints == 20:
			self.weapon = FireBallBurst(self._scene, self, 2000, 100, 10)
			self.weapon.lastfired = self._scene.time
			
		elif self.hitpoints == 10:
			self.weapon = FireBallSpread(self._scene, self, 2000)
			self.weapon.lastfired = self._scene.time