tangledmind/models.py

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

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

import pygame
from time import time
from math import atan, degrees,radians, cos, sin

img_path = 'asset/'

max_fire_rate = 10 # in fires per seconds

cap_speed = 10
acceleration = 2
deceleration = 1.1



class Game():
    def __init__(self,carte,perso,camera):
        self.carte = carte
        self.perso = perso
        self.camera = camera

    def draw(self,surface):
        # draw the map
        self.carte.draw(surface,self.camera)

        # draw the projectiles and remove them if needed
        to_remove = []
        for k,proj in enumerate(self.perso.projectiles):
            if not proj.is_out(self.carte):
                proj.move()
                proj.draw(surface,self.camera)
            else:
                to_remove.append(k)
        if to_remove != []:
            for k in to_remove[::-1]:
                del self.perso.projectiles[k]

        self.perso.draw(surface,self.camera)
        self.camera.draw(surface)

    def get_offset(self):
        #Return the position of the elements on the screen (camera)
        return (self.perso.posx-self.camera.posx,self.perso.posy-self.camera.posy)



class Carte():
    def __init__(self,mapname):
        self.posx = 0
        self.posy = 0
        self.back = pygame.image.load('maps/'+mapname+'_back.png').convert()
        self.wall = pygame.image.load('maps/'+mapname+'_wall.png').convert_alpha()
        self.mask = pygame.mask.from_surface(self.wall)

    def draw(self,surface,camera):
        offsetx,offsety = camera.get_offset()
        surface.blit(self.back,(self.posx-offsetx,self.posy-offsety))
        surface.blit(self.wall,(self.posx-offsetx,self.posy-offsety))



class Camera():
    def __init__(self,start_posx,start_posy,screen_width,screen_height,box_ratio):
        self.posx = start_posx
        self.posy = start_posy
        self.screen_height = screen_height
        self.screen_width = screen_width
        self.box_ratio = box_ratio
        self.box = pygame.Rect(int(screen_width*box_ratio),
                                int(screen_height*box_ratio),
                                int(screen_width*(1-2*box_ratio)),
                                int(screen_height*(1-2*box_ratio)))

    def draw(self,surface):
        pass
        # pygame.draw.line(surface, (255,0,0), (int(surface.get_width()/2-20),int(surface.get_height()/2)), (int(surface.get_width()/2+20),int(surface.get_height()/2)), 3)
        # pygame.draw.line(surface, (255,0,0), (int(surface.get_width()/2),int(surface.get_height()/2-20)), (int(surface.get_width()/2),int(surface.get_height()/2+20)), 3)
        # pygame.draw.rect(surface, (0,255,0), self.box, 3)
    def get_offset(self):
        return (int(self.posx-self.screen_width/2),int(self.posy-self.screen_height/2))


class Perso():
    def __init__(self,name,posx,posy,center_screen,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.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_perso = pygame.image.load(img_path+texture).convert_alpha()
        self.perso = self.img_perso
        self.perso_rect = self.perso.get_rect()
        self.mask = pygame.mask.from_surface(self.img_perso)

        self.img_canon = pygame.image.load(img_path+texture_canon).convert_alpha()
        self.canon = self.img_canon
        self.canon_rect = self.canon.get_rect()
        self.degres_perso = 0
        self.degres_canon = 0
        self.texture_proj = texture_proj

        self.projectiles = []
        self.last_fire = time()

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

        # 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] -= acceleration
                if self.speed[0] < -cap_speed: self.speed[0] = -cap_speed

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

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

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

        # Begin the deceleration
        if not (keystate[self.key_left] or keystate[self.key_right]):
            self.speed[0] = int(self.speed[0]/deceleration)
        if not (keystate[self.key_up] or keystate[self.key_down]):
            self.speed[1] = int(self.speed[1]/deceleration)

        # get pos of player on screen to check collision with the movement box
        offsetx,offsety = camera.get_offset()
        posx_screen = self.posx-offsetx
        posy_screen = self.posy-offsety

        # perso in the box:
        if camera.box.collidepoint(posx_screen,posy_screen):

            # X AXIS
            temp_pos = self.posx
            self.posx = self.posx+self.speed[0]
            if carte.mask.overlap(self.mask, (self.posx-self.perso_rect.center[0],self.posy-self.perso_rect.center[1])):
                self.posx = temp_pos
                self.speed[0] = 0

            # Recalculate position on screen to detect an exit of the box
            posx_screen = self.posx-offsetx
            if not camera.box.collidepoint(posx_screen,posy_screen):
                # Exit of the box, move the box so that the player stays in it
                camera.posx = camera.posx + self.speed[0]

            # Y AXIS
            temp_pos = self.posy
            self.posy = self.posy+self.speed[1]
            if carte.mask.overlap(self.mask, (self.posx-self.perso_rect.center[0],self.posy-self.perso_rect.center[1])):
                self.posy = temp_pos
                self.speed[1] = 0

            # Recalculate position on screen to detect an exit of the box
            posy_screen = self.posy-offsety
            if not camera.box.collidepoint(posx_screen,posy_screen):
                # Exit of the box, move the box so that the player stays in it
                camera.posy = camera.posy + self.speed[1]


        # perso not in the box
        else:
            # X AXIS
            temp_pos = self.posx
            self.posx = self.posx+self.speed[0]
            if carte.mask.overlap(self.mask, (self.posx-self.perso_rect.center[0],self.posy-self.perso_rect.center[1])):
                self.posx = temp_pos
                self.speed[0] = 0
            # If the perso really move, camera follow
            else:
                camera.posx = camera.posx + self.posx-temp_pos

            # Y AXIS
            temp_pos = self.posy
            self.posy = self.posy+self.speed[1]
            if carte.mask.overlap(self.mask, (self.posx-self.perso_rect.center[0],self.posy-self.perso_rect.center[1])):
                self.posy = temp_pos
                self.speed[1] = 0
            # If the perso really move, camera follow
            else:
                camera.posy = camera.posy + self.posy-temp_pos


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


    def draw(self,surface,camera):

        #Get offset and compute player position in screen
        offsetx,offsety = camera.get_offset()
        posx_screen = self.posx-offsetx
        posy_screen = self.posy-offsety

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

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

        # blit player and canon
        surface.blit(self.perso,(posx_screen-self.perso_rect.center[0],posy_screen-self.perso_rect.center[1]))
        surface.blit(self.canon,(posx_screen-self.canon_rect.center[0],posy_screen-self.canon_rect.center[1]))

        #pygame.draw.rect(surface, (255,0,0), (int(move_box_ratio*scwidth),int(move_box_ratio*scheight),int(scwidth*(1-2*move_box_ratio)),int(scheight*(1-2*move_box_ratio))), 2)

    def fire(self,name,texture):
        if (time()-self.last_fire> 1/max_fire_rate):
            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(pygame.sprite.Sprite): 

    def __init__(self,name,texture,position,speed,angle):
        self.name = name
        self.speed = speed
        self.posx = position[0]
        self.posy = position[1]
        #self.deplacement = [0,0]
        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()
        self.mask = pygame.mask.from_surface(self.img)

    def move(self):
        self.posx = round(self.posx+self.speed*self.direction[0])
        self.posy = round(self.posy+self.speed*self.direction[1])
        #self.deplacement = (round(self.deplacement[0]+self.speed*self.direction[0]),round(self.deplacement[1]+self.speed*self.direction[1]))
    
    def draw(self,surface,camera):
        # Get position on screen
        offsetx,offsety = camera.get_offset()
        posx_screen = self.posx-offsetx
        posy_screen = self.posy-offsety

        surface.blit(self.img,(posx_screen-self.rect[0],posy_screen-self.rect[1]))

    def is_out(self,carte):
        if carte.mask.overlap(self.mask, (self.posx-self.rect.center[0],self.posy-self.rect.center[1])):
        # if (self.deplacement[0]+surface.get_width()/2<0-self.img.get_width() or 
        # self.deplacement[1]+surface.get_height()/2<0-self.img.get_height() or 
        # self.deplacement[0]+surface.get_width()/2>surface.get_width()+self.img.get_width() or 
        # self.deplacement[1]+surface.get_height()/2>surface.get_height()+self.img.get_height()):
            return True
        else:
            return False