score system (not implemented yet!)

• [x] doors
• [x] switches
• [ ] to respawn zombie on the closest infection circle to the place of dying
• [ ] players stats graph
• [ ] tell the top online count (store it to SQL)
• [x] ninja?
• [ ] ghost?
• [ ] undead?
• [x] sweat emote on poison damage
• [x] dissalow infecting/damaging others during a warmup
• [x] scientist limit teleporting when out of health