# Zombie Game **1) File** {% file src="/files/xjv0rlORoylqsNm97lTh" %} **2) main.js** {% code overflow="wrap" %} ```jsx // load sprite let monster = App.loadSpritesheet('monster.png', 96, 96, { // defined base anim left: [8, 9, 10, 11], up: [12, 13, 14, 15], down: [4, 5, 6, 7], right: [16, 17, 18, 19], }, 8); const STATE_INIT = 3000; const STATE_READY = 3001; const STATE_PLAYING = 3002; const STATE_JUDGE = 3004; const STATE_END = 3005; let _start = false; // Whether the game starts let _players = App.players; // App.players : get total players let _lastSurvivor = null; let _zombieKing = []; let _state = STATE_INIT; let _stateTimer = 0; // Timer to check status value let _live = 0; // number of survivors let _resultstr; function startApp() { if(_players.length > 2) { // Set the number of zombies let zombiCnt = Math.floor(_players.length * 0.1); if(zombiCnt < 1) zombiCnt = 1; let allPlayer = []; let zombieIdx = []; for(let i = 0; i < _players.length; ++i) { allPlayer.push(_players[i]); } for(let i = 0; i < zombiCnt; ++i) { let index = Math.floor(allPlayer.length * Math.random()); if(!zombieIdx.includes(allPlayer[index].id)) { zombieIdx.push(allPlayer[index].id); allPlayer.splice(index, 1); } } // give players zombie attribute for(let i in _players) { let p = _players[i]; // create and utilize option data using tags. p.tag = {}; if(zombieIdx.includes(p.id)) { p.tag.zombie = true; p.tag.attack = 0; } else { p.tag.zombie = false; p.tag.attack = 0; _live++; } // Must use this method to call and update player properties p.sendUpdated(); } _start = true; } else { App.showCenterLabel(`Playable number of people: 3 or more`); startState(STATE_END); } } function startState(state) { _state = state; _stateTimer = 0; switch(_state) { case STATE_INIT: startApp(); break; case STATE_READY: App.showCenterLabel("The game will start soon."); for(let i in _players) { let p = _players[i]; p.moveSpeed = 0; // Change the attribute of zombies if(p.tag.zombie) { p.title = ''; p.sprite = monster; } p.sendUpdated(); } break; case STATE_PLAYING: for(let i in _players) { let p = _players[i]; // Change speed and label text according to player status if(p.tag.zombie) { p.moveSpeed = 85; p.showCenterLabel('Infect people!'); } else { p.moveSpeed = 80; p.showCenterLabel('Survive from zombies!'); } p.sendUpdated(); } break; case STATE_JUDGE: for(let i in _players) { let p = _players[i]; p.moveSpeed = 0; p.sendUpdated(); } judgement(_live); break; case STATE_END: _start = false; for(let i in _players) { let p = _players[i]; p.moveSpeed = 80; p.title = null; p.sprite = null; p.sendUpdated(); } // Clear all objects in the map Map.clearAllObjects(); break; } } function checkSuvivors() { let resultlive = 0; for(let i in _players) { let p = _players[i]; if(!p.tag.zombie) { _lastSurvivor = p; ++resultlive; } } return resultlive; } function judgement(number) { // The highest number of attacks among all players let attack = 0; for(let i in _players) { let p = _players[i]; if(p.tag.attack > attack) attack = p.tag.attack; } zombieKing = []; for(let i in _players) { let p = _players[i]; if(p.tag.attack == attack) zombieKing.push(p); } let index = Math.floor(Math.random() * zombieKing.length); if(number == 1) // when there are survivors resultstr = `${_lastSurvivor.name} is the last survivor!\nThe Strongest Zombie [` + zombieKing[index].name + '] Number of infections : ' + attack; else if(number == 0) // when there are no survivors resultstr = `No survivors.\nThe Strongest Zombie [` + zombieKing[index].name + '] Number of infections : ' + attack; } App.onStart.Add(function(){ startState(STATE_INIT); }); // event triggered when players join the Space App.onJoinPlayer.Add(function(p) { p.tag = { zombie : false, attack : 0, }; if(_start) { p.tag.zombie = true; p.sprite = monster; p.sendUpdated(); judgement(checkSuvivors()); } _players = App.players; }); // event triggered when players leave the Space App.onLeavePlayer.Add(function(p) { if(_start) { judgement(checkSuvivors()); } p.title = null; p.sprite = null; p.moveSpeed = 80; p.sendUpdated(); _players = App.players; }); // event triggered when the game block is pressed App.onDestroy.Add(function() { App.stopSound(); }); // event triggered when player touches other players App.onPlayerTouched.Add(function(sender, target, x, y) { if(_state != STATE_PLAYING) return; if(!sender.tag.zombie) return; if(target.tag.zombie) return; target.tag.zombie = true; target.sprite = monster; sender.tag.attack += 1; target.sendUpdated(); _live = checkSuvivors(); if(_live >= 2) { App.showCenterLabel(`${target.name} is infected!\n(${_live} survivors!)`); return; } else startState(STATE_JUDGE); }); // called every 20ms // param1 : deltatime ( elapsedTime ) App.onUpdate.Add(function(dt) { if(!_start) return; _stateTimer += dt; switch(_state) { case STATE_INIT: App.showCenterLabel("Become a zombie and infect people. The host is faster.\nPeople do their best to run away and be the last survivor."); if(_stateTimer >= 5) startState(STATE_READY); break; case STATE_READY: if(_stateTimer >= 3) startState(STATE_PLAYING); break; case STATE_PLAYING: break; case STATE_JUDGE: App.showCenterLabel(resultstr); if(_stateTimer >= 5) startState(STATE_END); break; case STATE_END: break; } }); ``` {% endcode %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.zep.us/zep-script/zep-script-guide/explore-zep-script/zep-script-example-code/zombie-game.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. 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