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‎games/Toxic Zone Survival.js‎

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// Toxic Zone Survival - Sprig Edition (Lowercase-only IDs)
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const p = "p"
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const t = "t"
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const o = "o"
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const w = "w"
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setLegend(
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[p, bitmap`
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................
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................
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.......33.......
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......3333......
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.....333333.....
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....33222333....
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....33222333....
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.....333333.....
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......3333......
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.......33.......
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................
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................
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................
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................
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................
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................`],
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[t, bitmap`
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................
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................
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....22222222....
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...2222222222...
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..222222222222..
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..222211112222..
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..222211112222..
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..222222222222..
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...2222222222...
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....22222222....
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................
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................
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................
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................
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................
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................`],
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[o, bitmap`
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................
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................
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.......44.......
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......4444......
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.....444444.....
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......4444......
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.......44.......
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................
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................
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................
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................
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................
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................
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................
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................
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................`],
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[w, bitmap`
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111
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1111111111111111`]
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)
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setMap(map`
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wwwwwwwwwwwwww
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w............w
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w............w
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w............w
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w............w
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w............w
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w............w
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w............w
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w............w
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w............w
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wwwwwwwwwwwwww`)
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const W = width()
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const H = height()
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// CONFIG
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const cfg = {
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tick: 140,
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oxyMax: 100,
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hpMax: 100,
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oxyDrain: 3,
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cloudMul: 4,
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dmg: 10,
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tankOxy: 36,
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tankSpawn: 6000,
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tankLife: 14000,
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cloudSpawn: 4200,
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cloudMin: 900,
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grow: 0.28
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}
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let state = "idle"
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let pl = { x: Math.floor(W/2), y: Math.floor(H/2), oxy: cfg.oxyMax, hp: cfg.hpMax }
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let dir = {x:0,y:0}
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let nextDir = null
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let clouds = []
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let tanks = []
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let tickLoop = null
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let nextTank = performance.now() + 1000
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let nextCloud = performance.now() + 1200
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let cloudRate = cfg.cloudSpawn
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let start = 0
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let time = 0
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let best = Number(localStorage.getItem("highScoreSprigTZS") || 0)
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// UTIL
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function r(a,b){ return Math.random()*(b-a)+a }
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function solid(x,y){ return getTile(x,y).some(s=>s.type===w) }
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// CLOUD/TANK SPAWN
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function makeCloud(){
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const edge = Math.floor(Math.random()*4)
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let x,y
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if(edge===0){ x=0; y=Math.floor(r(1,H-2)) }
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if(edge===1){ x=W-1; y=Math.floor(r(1,H-2)) }
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if(edge===2){ x=Math.floor(r(1,W-2)); y=0 }
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if(edge===3){ x=Math.floor(r(1,W-2)); y=H-1 }
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const ang = Math.atan2(H/2-y, W/2-x)
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clouds.push({ x, y, r:r(1.2,2.4), vx:Math.cos(ang)*r(0.02,0.18), vy:Math.sin(ang)*r(0.02,0.18) })
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}
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function makeTank(){
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const arr = []
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for(let x=1;x<W-1;x++){
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for(let y=1;y<H-1;y++){
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if(!(x===pl.x && y===pl.y) && !solid(x,y)) arr.push({x,y})
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}
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}
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if(arr.length===0) return
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const p0 = arr[Math.floor(Math.random()*arr.length)]
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tanks.push({ x:p0.x, y:p0.y, born:performance.now() })
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}
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// DRAW
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function clearInside(){
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for(let x=1;x<W-1;x++){
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for(let y=1;y<H-1;y++){
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clearTile(x,y)
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}
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}
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}
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function draw(){
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for(const tn of tanks) addSprite(tn.x, tn.y, o)
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for(const c of clouds){
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const R = c.r
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const xmin = Math.max(1, Math.floor(c.x - R))
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const xmax = Math.min(W-2, Math.floor(c.x + R))
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const ymin = Math.max(1, Math.floor(c.y - R))
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const ymax = Math.min(H-2, Math.floor(c.y + R))
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for(let xx=xmin; xx<=xmax; xx++){
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for(let yy=ymin; yy<=ymax; yy++){
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const dx = xx - c.x, dy = yy - c.y
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if(Math.sqrt(dx*dx+dy*dy) <= R+0.3) addSprite(xx,yy,t)
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}
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}
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}
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addSprite(pl.x, pl.y, p)
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}
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// GAME LOGIC
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function step(){
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if(state!=="play") return
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const now = performance.now()
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// movement
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if(nextDir){
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if(!(dir.x===-nextDir.x && dir.y===-nextDir.y)) dir = nextDir
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nextDir = null
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}
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if(dir.x||dir.y){
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const nx = pl.x + dir.x, ny = pl.y + dir.y
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if(!solid(nx,ny)){ pl.x = nx; pl.y = ny }
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}
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// clouds
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for(const c of clouds){
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c.r += cfg.grow
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c.x += c.vx
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c.y += c.vy
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}
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clouds = clouds.filter(c => !(c.x<-3||c.x>W+3||c.y<-3||c.y>H+3||c.r>10))
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// spawn clouds
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cloudRate = Math.max(cfg.cloudMin, cfg.cloudSpawn - (time/60)*300)
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if(now>=nextCloud){
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makeCloud()
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nextCloud = now + r(cloudRate*0.7, cloudRate*1.2)
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}
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// tanks
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if(now>=nextTank){
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makeTank()
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nextTank = now + r(cfg.tankSpawn*0.6, cfg.tankSpawn*1.4)
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}
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tanks = tanks.filter(tk => now - tk.born <= cfg.tankLife)
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// pickup
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for(let i=tanks.length-1;i>=0;i--){
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if(tanks[i].x===pl.x && tanks[i].y===pl.y){
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pl.oxy = Math.min(cfg.oxyMax, pl.oxy + cfg.tankOxy)
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tanks.splice(i,1)
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try{ playTune("c5:6") }catch(e){}
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}
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}
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// oxygen drain
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let inside=false
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for(const c of clouds){
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const dx=pl.x-c.x, dy=pl.y-c.y
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if(Math.sqrt(dx*dx+dy*dy)<=c.r+0.2){ inside=true; break }
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}
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const dt = cfg.tick/1000
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pl.oxy = Math.max(0, pl.oxy - cfg.oxyDrain * (inside?cfg.cloudMul:1) * dt)
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if(pl.oxy<=0) pl.hp = Math.max(0, pl.hp - cfg.dmg*dt)
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// score
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time = (now-start)/1000
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// redraw
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clearInside()
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draw()
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try{ clearText() }catch(e){}
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addText("TIME "+time.toFixed(1), {x:1,y:0,color:color`3`})
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addText("OXY "+Math.floor(pl.oxy), {x:9,y:0,color:color`4`})
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addText("HP "+Math.floor(pl.hp), {x:14,y:0,color:color`2`})
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addText("BEST "+Math.floor(best), {x:1,y:H-1,color:color`5`})
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// game over
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if(pl.hp<=0){
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endGame()
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}
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}
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function endGame(){
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state="end"
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if(tickLoop) clearInterval(tickLoop)
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const final = Math.floor(time)
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if(final>best){
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best=final
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localStorage.setItem("highScoreSprigTZS",String(best))
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}
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try{ clearText() }catch(e){}
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addText("GAME OVER", {x:5,y:3,color:color`2`})
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addText("TIME "+final+"s", {x:5,y:5,color:color`3`})
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addText("PRESS ANY KEY", {x:3,y:7,color:color`4`})
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try{ playTune("e4:6 r:2 c4:8") }catch(e){}
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}
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function startGame(){
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pl.x=Math.floor(W/2); pl.y=Math.floor(H/2)
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pl.oxy=cfg.oxyMax; pl.hp=cfg.hpMax
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clouds=[]; tanks=[]
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dir={x:0,y:0}; nextDir=null
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start=performance.now()
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time=0
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state="play"
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if(tickLoop) clearInterval(tickLoop)
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tickLoop=setInterval(step,cfg.tick)
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makeCloud()
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makeTank()
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}
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// INPUT HANDLERS
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function move(x,y){ nextDir={x,y}; if(state==="idle") startGame(); if(state==="end") startGame() }
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onInput("w",()=>move(0,-1))
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onInput("s",()=>move(0,1))
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onInput("a",()=>move(-1,0))
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onInput("d",()=>move(1,0))
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onInput("i",()=>move(0,-1))
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onInput("k",()=>move(0,1))
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onInput("j",()=>move(-1,0))
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onInput("l",()=>move(1,0))
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// START SCREEN
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try{ clearText() }catch(e){}
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addText("TOXIC ZONE SURVIVAL",{x:2,y:2,color:color`3`})
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addText("Move: WASD / IJKL",{x:3,y:4,color:color`4`})
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addText("Press any key",{x:4,y:6,color:color`5`})

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