Test lvl for my doom_clone with basic features.

1. WASD or arrows - movement 
2. Left mouse button - shoot
3. ESC - show mouse
4. 1-2-3-4-5  - weapons

gun sprites are subject for change, environment textures are subject for change.

footsteps sound for player is subject for change.

basically all art is subject for change

demo currently lacks of planned features such as : exploding barrels, environment items, different enemy types, attack animation for enemy,  camera sway while strafing, camera shakes for shooting, taking damage, weapon swap animation, death weapon drop animation, jumping, traps, lava, elevations, open levels with skyboxes.