Gra Narciarz / Game Skier

Gra Narciarz / Game Skier

Gry zręcznościowe zawsze cieszą się dużą popularnością. / Skill games are always very popular.

<style>
body,html {
margin: 0;
padding: 0;
overflow: hidden;
}
#canvas{
height: 100vh;
width: 100vw;
background-color: #fff;
}
</style>
<canvas id="canvas"></canvas>
<script>
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
var keys = [];
let worldWidth = canvas.width;
time = 0,
speed = 5,
spawnable = 30;
spawnCounter = 0,
spawnTimer = 16,
treeheight = 20,
playerxs = 20,
playerxy = 10,
px = 300,
py = 100,
pause = false,
dead = false,
maxscore = 0;
let objects = [];
class Player {
  constructor(w, h) {
    this.x = window.innerWidth / 2;
    this.y = 50;
    this.height = h;
    this.width = w;
    this.accel = [0, 0];
    this.xmax = 7;
    this.ymax1 = 3;
    this.ymax2 = 2.2;
    this.vel = [0, 0];
    this.acc2 = 0.3;
  }
  draw() {
    let th = Math.atan(this.vel[0] / (this.vel[1] + speed));
    ctx.fillStyle = 'red';
    ctx.beginPath();
    ctx.moveTo(this.x, this.y);
    ctx.lineTo(this.x + Math.sin(th) * this.height, this.y + Math.cos(th) * this.height);
    ctx.lineTo(this.x + Math.sin(th) * this.height + Math.cos(th) * (this.width / 2 - 2), this.y + Math.cos(th) * this.height - Math.sin(th) * (this.width / 2 - 2));
    ctx.lineTo(this.x + Math.cos(th) * (this.width / 2 - 2), this.y - Math.sin(th) * (this.width / 2 - 2));
    ctx.closePath();
    ctx.fill();
    ctx.fillStyle = 'red';
    ctx.beginPath();
    ctx.moveTo(this.x + Math.cos(th) * (this.width / 2 + 2), this.y - Math.sin(th) * (this.width / 2 + 2));
    ctx.lineTo(this.x + Math.sin(th) * this.height + Math.cos(th) * (this.width / 2 + 2), this.y + Math.cos(th) * this.height - Math.sin(th) * (this.width / 2 + 2));
    ctx.lineTo(this.x + Math.sin(th) * this.height + Math.cos(th) * this.width, this.y + Math.cos(th) * this.height - Math.sin(th) * this.width);
    ctx.lineTo(this.x + Math.cos(th) * this.width, this.y - Math.sin(th) * this.width);
    ctx.closePath();
    ctx.fill();
  }
  move() {
    if (keys[39] && this.vel[0] >= this.xmax) {
      this.vel[0] = this.xmax;
    } else
    if (keys[39] && this.vel[0] < this.xmax) {
      this.vel[0] += this.acc2;
    } else
    if (keys[37] && this.vel[0] <= 0 - this.xmax) {
      this.vel[0] = 0 - this.xmax;
    } else
    if (keys[37] && this.vel[0] > 0 - this.xmax) {
      this.vel[0] -= this.acc2;
    } else
    {
      this.vel[0] *= 0.9;
    }
    if (keys[40] && this.vel[1] >= this.ymax1) {
      this.vel[1] = this.ymax1;
    } else
    if (keys[40] && this.vel[1] < this.ymax1) {
      this.vel[1] += this.acc2;
    } else
    if (keys[38] && this.vel[1] <= 0 - this.ymax2) {
      this.vel[1] = 0 - this.ymax2;
    } else
    if (keys[38] && this.vel[1] > 0 - this.ymax2) {
      this.vel[1] -= this.acc2;
    } else
    {
      this.vel[1] *= 0.9;
    }
    if (this.x < 0) {this.x -= this.x + 1;};
    if (this.x + this.width > window.innerWidth) {this.x -= this.x + this.width - window.innerWidth + 1;};
    if (this.y < 0) {this.y -= this.y + 1;};
    if (this.y + this.height > window.innerHeight) {this.y -= this.y + this.height - window.innerHeight + 1;}
    this.x += this.vel[0];
    this.y += this.vel[1];
  }
  colcheck() {
    let xcol = false;
    let ycol = false;
    let collision = false;
    for (let i = 0; i < objects.length; i++) {
      if (this.x > objects[i].x - objects[i].width / 2 && this.x < objects[i].x + objects[i].width / 2 || this.x + this.width > objects[i].x - objects[i].width / 2 && this.x + this.width < objects[i].x + objects[i].width / 2) {
        xcol = true;
      } else
      {xcol = false;}
      if (this.y > objects[i].y && this.y < objects[i].y + objects[i].height || this.y + this.height > objects[i].y && this.y + this.height < objects[i].y + objects[i].height) {
        ycol = true;
      } else
      {xcol = false;}
      if (xcol && ycol) {
        collision = true;
      }
    }
    if (collision) {dead = true;}
    return collision;
  }}
class Tree {
  constructor(x) {
    this.x = x;
    this.y = canvas.height;
    this.height = 30;
    this.width = 20;
  }
  draw() {
    ctx.fillStyle = '#fff';
    ctx.fillRect(this.x - this.width / 2, this.y, this.width, this.height);
ctx.fillStyle = 'green';
ctx.beginPath()
ctx.moveTo(this.x - this.width / 2, this.y+this.height)
ctx.lineTo(this.x, this.y)
ctx.lineTo(this.x + this.width / 2, this.y+this.height)
ctx.fill()
    ctx.fillStyle = '#000';
    ctx.fillRect(this.x - this.width / 2 + this.width / 3, this.y+this.height, this.width/4, this.height/4);
  }}
function spawn() {
  spawnCounter = 0;
  spawnTimer = 2 * (treeheight / speed) + Math.random() * speed;
  posis = [];
  for (let i = 0; i < Math.ceil(Math.random() * spawnable); i++) {
    let newTree = new Tree(0);
    let xspawn = 0;
    let overlap = 0;
    do {
      overlap = 0;
      xspawn = Math.random() * worldWidth * 1.2;
      for (let k = 0; k < posis.length; k++) {
        if (xspawn >= posis[k] - 17 && xspawn <= posis[k] + 17) {
          overlap += 1;
        }
      }
    } while (
    overlap > 0);
    posis.push(xspawn);
    newTree.x = xspawn;
    newTree.y = canvas.height;
    objects.push(newTree);
  }
}
function move() {
  for (let i = 0; i < objects.length; i++) {
    if (objects[i].hasOwnProperty('y') && typeof objects[i].draw === 'function') {
      if (objects[i].y + objects[i].height < 0) {
        objects.shift();
        console.log(objects.length);
      }
      objects[i].y -= speed;
    }
  }
}
function ded() {
  objects = [];
  player1.x = window.innerWidth / 2;
  player1.y = 100;
  ctx.fillStyle = '#C33';
  ctx.fillRect(0, 0, window.innerWidth, window.innerHeight);
  ctx.font = '34px Arial';
  ctx.fillStyle = "white";
  ctx.fillText('Przegrałeś / You lost', window.innerWidth / 2 - 120, window.innerHeight / 2 - 100);
  ctx.font = "21px Arial";
  ctx.fillText('wynik / score: ' + time, window.innerWidth / 2 - 120, window.innerHeight / 2 - 50);
  ctx.fillText('rekord / record: ' + maxscore, window.innerWidth / 2 - 120, window.innerHeight / 2 - 15);
  ctx.fillText('Naciśnij / Press R', window.innerWidth / 2 - 120, window.innerHeight / 2 + 50);
  if (keys[82]) {
    dead = false;
    time = 0;
    speed = 5;
    spawnable = 0;
    spawnCounter = 0;
  }
}
let player1 = new Player(15, 30);
function animate() {
  if (!dead) {
    ctx.clearRect(0, 0, canvas.width, canvas.height);
    player1.colcheck();
    if (!pause) {
      time += 1;
      spawnCounter += 1;
      if (spawnCounter >= spawnTimer) {
        spawn();
      }
      move();
      player1.move();
      spawnable = Math.min(time / 180, 53);
      speed = Math.max(5, Math.min(time / 180, 15));
      player1.xmax = speed * 1.4;
      player1.ymax = speed * 0.8;
      player1.acc2 = speed * 0.06;
    }
    for (let i = 0; i < objects.length; i++) {
      objects[i].draw();
    }
    player1.draw();
    ctx.font = time > maxscore ? "600 20px Arial" : "400 14px Arial";
    ctx.fillStyle = time > maxscore ? 'red' : 'blue';
    ctx.fillText('wynik / score: ' + time, 10, 20);
    ctx.font = "400 14px Arial";
    ctx.fillStyle = 'blue';
    ctx.fillText('rekord / record: ' + maxscore, 10, 40);
  } else
  {
    maxscore = time > maxscore ? time : maxscore;
    ded();
  }
  requestAnimationFrame(animate);
}
animate();
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
worldWidth = canvas.width;
window.addEventListener('resize', function () {
  canvas.width = window.innerWidth;
  canvas.height = window.innerHeight;
  worldWidth = canvas.width;
});
document.addEventListener("keydown", keyDownHandler, false);
document.addEventListener("keyup", keyUpHandler, false);
function keyDownHandler(e) {
  keys[e.which] = true;
}
function keyUpHandler(e) {
  keys[e.which] = false;
}
document.addEventListener('keyup', function (e) {
  switch (e.which) {
    case 32:
      pause = !pause;
      console.log(pause ? 'pause' : 'play');
      break;}
});
</script>

Komentarze

Marian K.10 marca 2019 14:12
Dobrze, ale źle
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Tomasz P.12 marca 2019 07:48
Panie, nie galopuj pan tak
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Anonimowy15 marca 2019 09:46
Jaki macie rekord bo ja mam 3568m! haa
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Anonimowy15 marca 2019 09:53
JD - jest dobrze
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