siphon_philter_game_mechanic_crosshair_foundation_first_person_mode_functionality.py

import pygame
import sys

# Initialize pygame
pygame.init()

# Create window
WIDTH, HEIGHT = 800, 600
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Crosshair Toggle Example")

# Load crosshair image
crosshair_img = pygame.Surface((285, 128), pygame.SRCALPHA)
pygame.draw.line(crosshair_img, (255, 0, 0), (0, 63), (285, 63), 2)
pygame.draw.line(crosshair_img, (255, 0, 0), (142, 0), (142, 128), 2)

# Crosshair offset so that center aligns with mouse
crosshair_offset = pygame.math.Vector2(142, 63)

# Mode flag
crosshair_mode = False

# Dummy functions
def enter_first_person_mode():
    print("Switched to first person mode (crosshair active).")

def enter_third_person_mode():
    print("Switched to third person mode (crosshair hidden).")

# Main loop
clock = pygame.time.Clock()

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_F3:
                crosshair_mode = not crosshair_mode
                if crosshair_mode:
                    enter_first_person_mode()
                else:
                    enter_third_person_mode()

    screen.fill((30, 30, 30))  # Background

    if crosshair_mode:
        mouse_x, mouse_y = pygame.mouse.get_pos()
        # Compute top-left corner so that center of crosshair is at mouse position
        draw_pos = (mouse_x - crosshair_offset.x, mouse_y - crosshair_offset.y)
        screen.blit(crosshair_img, draw_pos)

    pygame.display.flip()
    clock.tick(60)