#!/usr/bin/python

import pygame
from pygame.locals import *
import os
import sys
import math
import random
import starmap
import starmap_gen
import gametimer
#from ocempgui.widgets import *
#from ocempgui.widgets.Constants import *
import video


pygame.init()

def handle_keys(keys):
	global bounce, speed_player, trails, dir_player, color_player
	for key in keys:
		if key == K_b:
			bounce = not bounce
		elif key == K_q:
			sys.exit(0)
		elif key == K_c:
			color_player = (random.randint(0,255), random.randint(0,255), random.randint(0,255))
		elif key == K_t:
			trails = not trails
		elif key == K_UP:
			speed_player += 0.01
		elif key == K_DOWN:
			speed_player -= 0.01
		elif key == K_LEFT:
			dir_player -= (math.pi / 180.0)
		elif key == K_RIGHT:
			dir_player += (math.pi / 180.0)
			
def move(coords, dir, mag):
	return [coords[0] + (math.sin(dir) * mag), coords[1] - (math.cos(dir) * mag)]

def limitdir(dir):
	while dir < 0:
		dir += math.pi*2.0
	while dir > math.pi*2.0:
		dir -= math.pi*2.0
	return dir

def bouncedir(normal, dir):
	inv_normal = limitdir(normal + math.pi)
	return limitdir(normal + (inv_normal - dir))
	

loc_player = [100.0,150.0]
dir_player = math.pi * 0.80

size = width, height = (800,600)
scr = pygame.display.set_mode(size)

#options
color_player = (255,255,255)
bounce = True
speed_player = 5.0
trails = False

#scr.fill((0,0,0))

keys = []
do_quit = False

map = None
pygame.event.set_allowed((KEYDOWN, KEYUP, QUIT))


sg = False
def btn_start_game():
	global guiscreen, map
	guiscreen = None
	map = starmap_gen.starmap_generate()

def btn_quit_game():
	pygame.event.post(pygame.event.Event(QUIT, {}))
def btn_game_options():
	global guiscreen
	guiscreen = screen_options()

def screen_mainmenu():
	re = Renderer()
	re.screen = scr
	re.title = "vssg 0.1 - Very Simple Space Game"
	re.color = (40,0,70)

	b_start = Button("#Start Game")
	b_options = Button("#Options")
	b_quit = Button("#Quit")
	blist = [b_start, b_options, b_quit]
	totheight = (b_start.height * len(blist)) + (5 * (len(blist) - 1))
	maxwidth = 0
	for button in blist:
		if maxwidth == None or button.width > maxwidth:
			maxwidth = button.width
	b_start.connect_signal(SIG_CLICKED, btn_start_game)
	b_quit.connect_signal(SIG_CLICKED, btn_quit_game)
	b_options.connect_signal(SIG_CLICKED, btn_game_options)
	
	for i, button in enumerate(blist):
		x = scr.get_rect().w / 2
		y = scr.get_rect().h / 2
		y = y - (totheight / 2) + (b_start.height / 2)
		y = y + (i * 5) + (i * b_start.height)
		button.set_minimum_size(maxwidth, b_start.height)
		button.center = (x, y)
		re.add_widget(button)
		
	return re
	
def screen_options():
	def slider_set_resolution():
		global resolution_list, s_res, l_res
		new_res = resolution_list[int(s_res.value)]
		l_res.set_text("%s x %s" % (new_res[0], new_res[1]))
	def btn_ok():
		global guiscreen, s_res, resolution_list, scr
		guiscreen = None
		new_res = resolution_list[int(s_res.value)]
		scr = pygame.display.set_mode(new_res)
		guiscreen = screen_mainmenu()
		
	def btn_apply():
		global s_res, resolution_list, scr, guiscreen
		guiscreen = None
		new_res = resolution_list[int(s_res.value)]
		scr = pygame.display.set_mode(new_res)
		guiscreen = screen_options()
		
	def btn_cancel():
		global guiscreen
		guiscreen = screen_mainmenu()
		
	def set_resolution():
		global guiscreen
		
		
	global resolution_list, l_res, s_res
	re = Renderer()
	re.screen = scr
	re.color = (40,0,70)
	optframe = VFrame()
	optframe.spacing = 10
	
	resolution_list = pygame.display.list_modes()
	resolution_list.reverse()
	cur_res = (scr.get_rect().w, scr.get_rect().h)
	try:
		cur_res_idx = resolution_list.index(cur_res)
	except ValueError:
		cur_res_idx = None
		
	s_res = HScale(0, len(resolution_list) - 1)
	s_res.set_minimum_size(300, s_res.size[1])
	#s_res.center = (cur_res[0] / 2, (cur_res[1] / 2) - (s_res.size[1] / 2) - 2)
	if cur_res_idx != None:
		s_res.value = cur_res_idx
	s_res.connect_signal(SIG_VALCHANGED, slider_set_resolution)
	l_res = Label("%s x %s" % (cur_res[0], cur_res[1]))
	#l_res.center = (cur_res[0] / 2, (cur_res[1] / 2) + (l_res.size[1] / 2) + 2)
	optframe.add_child(s_res)
	optframe.add_child(l_res)
	
	
	btnframe = HFrame()
	btnframe.border = BORDER_NONE
	btnframe.spacing = 5
	b_ok = Button("#OK")
	b_apply = Button("#Apply")
	b_cancel = Button("#Cancel")
	b_ok.connect_signal(SIG_CLICKED, btn_ok)
	b_apply.connect_signal(SIG_CLICKED, btn_apply)
	b_cancel.connect_signal(SIG_CLICKED, btn_cancel)
	btnframe.add_child(b_ok)
	btnframe.add_child(b_apply)
	btnframe.add_child(b_cancel)
	optframe.add_child(btnframe)
	
	optframe.center = (cur_res[0] / 2, cur_res[1] / 2)
	re.add_widget(optframe)
	return re
	

guiscreen = None
map = starmap_gen.starmap_generate()
gametimer.start_loop()

while True:
	events = pygame.event.get()
	gametimer.next_frame()
	
	if guiscreen != None:
		video.force_redraw()	# irrelevant right now, but when we exit, we'll need a full redraw!
		for ev in events:
			if ev.type == QUIT:
				do_quit = True
				break
		if do_quit:
			break
		guiscreen.distribute_events(*events)
		continue

		
	for ev in events:
		if ev.type == QUIT:
			do_quit = True
			break
		elif ev.type == KEYUP:
			try:
				del keys[keys.index(ev.key)]
			except IndexError:
				pass
		elif ev.type == KEYDOWN:
			keys += [ev.key]
		elif ev.type == VIDEOEXPOSE:
			video.force_redraw()
		elif ev.type in (MOUSEBUTTONDOWN, MOUSEBUTTONUP):
			pass
		
	if do_quit:
		break
			
	handle_keys(keys)
	map.update()
	
	if video.get_forced_redraw():
		scr.fill((0,0,0))

	map.draw(scr)
	
	video.next_frame()