52 lines
2.5 KiB
JavaScript
52 lines
2.5 KiB
JavaScript
"use strict";
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/* ================================================================
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星尘突击队 STAR RAID —— 像素肉鸽竖版射击
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单文件实现：像素引擎 / 程序化音频 / 双模式 / 局内外成长
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================================================================ */
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/* ---------------- 工具 ---------------- */
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const $=id=>document.getElementById(id);
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const clamp=(v,a,b)=>v<a?a:v>b?b:v;
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const lerp=(a,b,t)=>a+(b-a)*t;
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const rnd=(a=1,b)=>b===undefined?Math.random()*a:a+Math.random()*(b-a);
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const rndi=(a,b)=>Math.floor(rnd(a,b+1));
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const pick=arr=>arr[Math.floor(Math.random()*arr.length)];
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const TAU=Math.PI*2;
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function shuffle(a){for(let i=a.length-1;i>0;i--){const j=Math.floor(Math.random()*(i+1));[a[i],a[j]]=[a[j],a[i]];}return a;}
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const dist2=(ax,ay,bx,by)=>{const dx=ax-bx,dy=ay-by;return dx*dx+dy*dy;};
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/* ---------------- 存档 ---------------- */
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const SAVE_KEY="starraid_v1";
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let SAVE;
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function loadSave(){
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try{SAVE=JSON.parse(localStorage.getItem(SAVE_KEY))||null;}catch(e){SAVE=null;}
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if(!SAVE) SAVE={coins:0, m:{}, ships:["falcon"], best:{s0:0,s1:0,e0:0,e1:0,stage:0}, mute:false, music:true};
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SAVE.m=SAVE.m||{}; SAVE.ships=SAVE.ships||["falcon"]; SAVE.best=SAVE.best||{s0:0,s1:0,e0:0,e1:0,stage:0};
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SAVE.codex=SAVE.codex||{};
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}
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function persist(){try{localStorage.setItem(SAVE_KEY,JSON.stringify(SAVE));}catch(e){}}
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loadSave();
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/* ---------------- 平衡数值总表 ----------------
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所有概率与成长曲线集中于此，方便调平衡 */
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const BAL={
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player:{ speed:2.35, lives:3, hp:100, bombs:2, hitR:3, grazeR:14, focusMul:0.5,
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fireInt:8, dmg:6, bulletSpd:5.4, critC:0.05, critM:2.5, magnetR:36 },
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// 稀有度权重 [普通,稀有,史诗]，每点幸运: 稀有+2 史诗+1.5
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rarity:[62,28,10],
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xpNeed:l=>Math.round(4+l*2.5+Math.pow(l,1.5)), // 升级所需经验（下调，保证每波≈1级）
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// 波次缩放（n 从 0 起）：平缓曲线，匹配玩家成长
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hpMul: n=>1+0.10*n+0.012*Math.pow(n,1.5),
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spdMul:n=>Math.max(0.6,1-0.015*n), // 血量越高波次，移动越慢
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fireMul:n=>Math.min(1.3,1+0.012*n),
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eliteC:n=>Math.min(0.16,0.03+n*0.006), // 精英出现率
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coinDrop:0.5, // 普通敌掉币率
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scoreCombo:k=>Math.min(3,1+k*0.02), // 连击倍率上限 x3
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odGain:{kill:2.6,graze:2.2},
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coinGlobal:4, // 全局金币倍率
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bombDmg:80,
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reviveInv:160,
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hard:{hp:1.35,fire:1.3,coin:1.5}, // 困难修正
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};
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