school-horror-game/game.py

import pygame

SCREEN_WIDTH = 1280
SCREEN_HEIGHT = 720


class Game:
    def __init__(self):
        pygame.init()
        
        pygame.display.set_caption("School Game")

        self.clock = pygame.Clock()
        self.screen: pygame.Surface = pygame.display.set_mode(
            (SCREEN_WIDTH, SCREEN_HEIGHT)
        )

        self.display: pygame.Surface = pygame.Surface(
            (self.screen.get_width() // 2, self.screen.get_height() // 2)
        )


        self.running: bool = True

        self.dt: int = 0

        self.player_pos = pygame.Vector2(self.display.get_width() / 2, self.display.get_height() / 2)
        self.player_width = 20
        self.player_height = 20

        self.player = Player(self, self.player_pos, width=self.player_width, height=self.player_height)

        self.item_rect = pygame.Rect(70, 150, 10, 10)

        self.flashlight = 0
        self.flashlight_rect = pygame.Rect(0, 0, 0, 0)

        self.color_item = (0, 0, 0)

        self.light_points: list[pygame.Vector2] = []

        self.walls = [
            pygame.Rect(100, 100, 20, 50),
            pygame.Rect(300, 300, 200, 20),
            pygame.Rect(550, 80, 20, 200)
        ]
        self.light_radius = 75

        # self.circle = pygame.geometry.Circle(self.player_pos[0], self.player_pos[1], 30)

    def run(self) -> None:
        while self.running:
            self.dt: float = self.clock.tick(60) / 1000.0



            self.update()
            self.calculate_collsions()

            self.render()

            
            self.screen.blit(
                pygame.transform.scale(self.display, self.screen.get_size())
            )

            pygame.display.update()



    def update(self) -> None:
        # Event-Keys
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                self.running = False

            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_ESCAPE:
                    self.running = False

                if event.key == pygame.K_LSHIFT:
                    self.player.speed = 300

            if event.type == pygame.KEYUP:
                if event.key == pygame.K_LSHIFT:
                    self.player.speed = 150


        self.player.update(walls=self.walls, dt=self.dt)



    def render(self) -> None:

        self.display.fill((0, 0, 0, 0))


        """RAYCASTING"""
        ray_end = pygame.Vector2()
        self.light_points = []
        vector = pygame.Vector2(self.light_radius, 0)

        # Lichtstrahlen berechnen
        for i in range(360):

            rotated_vector = vector.rotate(i)
            ray_end = self.player_pos + rotated_vector


            # Überschneidung mit den Wänden prüfen
            for wall in self.walls:
                überschneidung = wall.clipline(self.player_pos, ray_end)

                if überschneidung:
                    schnittpunkt = pygame.Vector2(überschneidung[0])

                    ray_end = schnittpunkt


            self.light_points.append(ray_end)



        self.flashlight_rect = pygame.draw.polygon(
            self.display,
            (243, 255, 74),
            self.light_points
        )

        self.player.render(surface=self.display)

        pygame.draw.rect(self.display, self.color_item, self.item_rect)




        for wall in self.walls:
            pygame.draw.rect(self.display, "grey", wall)


    def calculate_collsions(self) -> None:
        if self.item_rect.colliderect(self.flashlight_rect):
            self.color_item = (0, 0, 255)
            # print("HIII")
        else:
            self.color_item = (0, 0, 0)


class Player:
    def __init__(self, game, pos: pygame.Vector2, width, height):
        self.game = game
        self.pos = pos

        self.width = width
        self.height = height

        self.speed = 150

        self.rect = pygame.Rect(self.pos[0]-self.width/2, self.pos[1]-self.height/2, width, height)

    def update(self, walls, dt):


        # Smooth Movement
        keys = pygame.key.get_pressed()
        
        direction = pygame.Vector2(
            keys[pygame.K_d] - keys[pygame.K_a],
            keys[pygame.K_s] - keys[pygame.K_w]
        )

        if direction.length_squared() > 0:
            direction = direction.normalize()

        movement: pygame.Vector2 = direction * self.speed * dt


        
        self.pos.x += movement.x

        if self.pos.x - self.width/2 < 0:
            self.pos.x = self.width/2


        if self.pos.x + self.width/2 > SCREEN_WIDTH/2:
            self.pos.x = SCREEN_WIDTH/2 - self.width/2
        # self.pos += movement


        # player_rect.center = round(player_pos)
        self.rect.centerx = round(self.pos.x)
        
        for wall in walls:
            if self.rect.colliderect(wall):
                if movement.x > 0:
                    self.rect.right = wall.left

                elif movement.x < 0:
                    self.rect.left = wall.right

                self.pos.x = self.rect.centerx



        self.pos.y += movement.y

        if self.pos.y - self.height/2 < 0:
            self.pos.y = self.height/2

        if self.pos.y + self.height/2 > SCREEN_HEIGHT/2:
            self.pos.y = SCREEN_HEIGHT/2 - self.height/2

        self.rect.centery = round(self.pos.y)

        for wall in walls:
            if self.rect.colliderect(wall):
                if movement.y > 0:
                    self.rect.bottom = wall.top

                elif movement.y < 0:
                    self.rect.top = wall.bottom

                self.pos.y = self.rect.centery





    def render(self, surface):

        pygame.draw.rect(surface, (255, 0, 0), self.rect)




game = Game()
game.run()





    # def rect_circle_collision(self, rect, circle):
    #     rect_x, rect_y, rect_w, rect_h = rect

    #     circle_x = circle[0][0]
    #     circle_y = circle[0][1]
    #     circle_r = circle[1]


    #     # Calculate the closest point on the rectangle to the center of the circle
    #     closest_x = max(rect_x, min(circle_x, rect_x + rect_w))
    #     closest_y = max(rect_y, min(circle_y, rect_y + rect_h))

    #     # Calculate the distance between the center of the circle and the closest point on the rectangle
    #     dx = circle_x - closest_x
    #     dy = circle_y - closest_y
    #     distance = (dx ** 2 + dy ** 2) ** 0.5

    #     return distance <= circle_r