# bomb

import random
import pygame
from pygame.locals import *
import game, gfx
from basespriteobj import *

STARTIMAGE = 16
MAXIMAGE = 32

bombimages = []

def load_game_resources():
    global bombimages
    for loop in range(0,64):
        filename = "bomb%02d.gif" % loop
        bombimages.append(gfx.load(filename))


class Bomb(Sprite):
    def __init__(self,actor):
        """create a new bomb, get initial dx and dy from player """
        global bombimages
        Sprite.__init__(self)

        self.images = bombimages
        self.imagenum = STARTIMAGE
        self.maximage = MAXIMAGE
        self.image = self.images[self.imagenum]
        self.rect = self.image.get_rect()
        self.lastrect = self.rect
        self.friction = game.friction
        self.gravity = game.gravity
        self.dx = actor.dx
        self.dy = actor.dy

        # where to add the bomb 
        # because we add at the end of a cycle, and have to erase-tick-draw...
        self.xoffset = actor.bomboffset[0] - self.dx
        self.yoffset = actor.bomboffset[1] + 0

        self.x,self.y = list(actor.rect.topleft)
        self.x += self.xoffset
        self.y += self.yoffset
        self.rect.topleft = [self.x,self.y]

        # how many frames we wait until dying
        self.collidetimer = game.collision_timer

        # timer that governs when we switch images
        self.turntimer = -15
        self.turninterval = game.bomb_turninterval

        self.exploding = 0

    def tick(self, speedadjust):

        self.turntimer += 1
        if (self.turntimer > 0 and
            self.turntimer % self.turninterval == 0 and
            self.dy != -self.gravity):
            self.imagenum += 1
            if self.imagenum > self.maximage:
                self.imagenum = self.maximage
            self.image = self.images[self.imagenum]
            self.rect = self.image.get_rect()

        self.physics()
        self.x += self.dx
        self.y += self.dy

        if self.x < 0 - self.rect.width:
            self.dead = 1

        if self.y > game.groundarena.bottom - self.rect.height:
            self.y = game.groundarena.bottom - self.rect.height
            self.dy = 0
            self.collidetimer += -1
            if self.collidetimer < 0:
                self.exploding = 1

        self.rect.topleft = [self.x,self.y]
        

    def physics(self):
        self.dy = self.dy * self.friction
        self.dy = self.dy + self.gravity
        
        if self.dx < -game.groundspeed:
            self.dx = -game.groundspeed