# -*- coding: UTF-8 -*-

### Tangled Mind
### Author: Arthur 'Grizzly' Grisel-Davy

import pygame
from time import time
import numpy as np
from numpy import sqrt
from math import atan, degrees,radians, cos, sin

img_path = 'asset/'

cap_speed = 10
deceleration = 1.1

class Perso():

    def __init__(self,name,posx,posy,key_up,key_down,key_left,key_right,key_fire,texture,texture_canon,texture_proj):
        self.name = name
        self.posx = posx
        self.posy = posy
        self.speed = [0,0]
        self.direction = [0,-1]
        self.key_up = key_up
        self.key_down = key_down
        self.key_left = key_left
        self.key_right = key_right
        self.key_fire = key_fire
        self.img = pygame.image.load(img_path+texture).convert_alpha()
        self.canon = pygame.image.load(img_path+texture_canon).convert_alpha()
        self.degres_perso = 0
        self.degres_canon = 0
        self.texture_proj = texture_proj

        self.size = self.img.get_size()
        self.projectiles = []
        self.last_fire = time()

    def check_keys(self,keystate,screen_width,screen_height):

        # If an interresting key is pressed
        if keystate[self.key_left] or keystate[self.key_right] or keystate[self.key_up] or keystate[self.key_down]:

            if keystate[self.key_left]:
                self.speed[0] = -1*cap_speed

            if keystate[self.key_right]:
                self.speed[0] = cap_speed

            if keystate[self.key_up]:
                self.speed[1] = -1*cap_speed

            if keystate[self.key_down]:
                self.speed[1] = cap_speed

            if not keystate[self.key_left] and not keystate[self.key_right]:
                self.direction[0] = 0

            if not keystate[self.key_up] and not keystate[self.key_down]:
                self.direction[1] = 0

        # Cap the speed
        if abs(self.speed[0])>cap_speed:
            self.speed[0] = self.speed[0]/abs(self.speed[0])*cap_speed
        if abs(self.speed[1])>cap_speed:
            self.speed[1] = self.speed[1]/abs(self.speed[1])*cap_speed

        # Begin the deceleration
        self.speed[0] = int(self.speed[0]/deceleration)
        self.speed[1] = int(self.speed[1]/deceleration)

        # Update the position
        self.posx = self.posx+self.speed[0]
        self.posy = self.posy+self.speed[1]

        # Select the direction based on the closest cardinals+bissectrices vectors
        if self.speed != [0,0]:
            direction=[]
            min_dist = 1000
            for a in [-1,0,1]:
                for b in [-1,0,1]:
                    dist = sqrt((self.speed[0]-a)**2+(self.speed[1]-b)**2)
                    if dist < min_dist:
                        min_dist = dist
                        direction = [a,b]
            self.direction = direction


        if keystate[self.key_fire]:
            self.fire('fireball','asset/projectile')


    def draw(self,surface):
        # Make all projectiles move or disepear and draw them
        to_remove = []
        for k,proj in enumerate(self.projectiles):
            if not proj.is_out(surface):
                proj.move()
                proj.draw(surface)
            else:
                to_remove.append(k)
        if to_remove != []:
            for k in to_remove[::-1]:
                del self.projectiles[k]

        # select img

        #Calculate player rotation:
        if self.direction[0]!=0:
            self.degres_perso = -1*degrees(atan(self.direction[1]/self.direction[0]))
            if self.direction[0] < 0:
                self.degres_perso = 180+self.degres_perso
        else:
            self.degres_perso = ((self.direction[1]>0)*2-1)*-90
        perso = pygame.transform.rotate(self.img,self.degres_perso)

        #Calculate canon rotation:
        x_mouse, y_mouse = pygame.mouse.get_pos()
        if x_mouse==self.posx:
                x_mouse+=0.1
        self.degres_canon = -1*degrees(atan((y_mouse-self.posy)/(x_mouse-self.posx)))
        if x_mouse < self.posx:
            self.degres_canon = 180+self.degres_canon
        canon = pygame.transform.rotate(self.canon,self.degres_canon)

        # Get rects
        perso_rect = self.img.get_rect()
        canon_rect = canon.get_rect()

        # Blits
        surface.blit(perso,(self.posx-perso_rect.center[0],self.posy-perso_rect.center[1]))
        surface.blit(canon,(self.posx-canon_rect.center[0],self.posy-canon_rect.center[1]))

        #pygame.draw.circle(surface, (200,0,0), (self.posx,self.posy), 10)

    def fire(self,name,texture):
        if (time()-self.last_fire> 0.2):
            new_proj = Projectile(name,self.texture_proj,(self.posx,self.posy),20,self.degres_canon)
            self.projectiles.append(new_proj)
            self.last_fire = time()



class Projectile():

    def __init__(self,name,texture,position,speed,angle):
        self.name = name
        self.speed = speed
        self.position = position
        self.direction = direction = [cos(radians(angle)),-sin(radians(angle))]
        self.img = pygame.transform.rotate(pygame.image.load(img_path+texture).convert_alpha(),angle)
        self.rect = self.img.get_rect()

    def move(self):
        self.position = (round(self.position[0]+self.speed*self.direction[0]),round(self.position[1]+self.speed*self.direction[1]))
    def draw(self,surface):
        surface.blit(self.img,(self.position[0]-self.rect[0],self.position[1]-self.rect[1]))

    def is_out(self,surface):
        if (self.position[0]<0-self.img.get_width() or 
        self.position[1]<0-self.img.get_height() or 
        self.position[0]>surface.get_width()+self.img.get_width() or 
        self.position[1]>surface.get_height()+self.img.get_height()):
            return True
        else:
            return False