import pygame
import numpy as np
from scripts.utils import to_isometric_pixel

class Entity:
    def __init__(self, game, e_type, pos, size):
        self.game = game
        self.type = e_type
        self.pos = np.array(pos)
        self.size = np.array(size)
        self.velocity = np.array([0,0], dtype=np.float32)
    def update(self, tilemap, movement = np.array([0,0])):
        frame_movement = self.velocity + movement
        self.pos[0] += frame_movement[0]
        entity_rect = self.rect()
        for rect in tilemap.physics_rects_around(self.pos):
            if entity_rect.colliderect(rect):
                if frame_movement[0] > 0: #i was moving right
                    entity_rect.right = rect.left
                if frame_movement[0] < 0: #i was moving left
                    entity_rect.left = rect.right
                self.pos[0] = entity_rect.x
        self.pos[1] += frame_movement[1]
        entity_rect = self.rect()
        for rect in tilemap.physics_rects_around(self.pos):
            if entity_rect.colliderect(rect):
                if frame_movement[1] > 0: #i was moving down
                    entity_rect.bottom = rect.top
                if frame_movement[1] < 0: #i was moving up
                    entity_rect.top = rect.bottom
                self.pos[1] = entity_rect.y
    def render(self, surface, offset = np.array([0.,0.])):
        surface.blit(self.game.assets[self.type], to_isometric_pixel(self.pos-np.array([48,80]))*np.array([1,0.5])-offset)
    def rect(self):
        return pygame.Rect(self.pos, self.size)