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Emoji wars
Developer User4151｜Date and time 23/7/14 0:44:13
Build time 18.799 sec｜Game capacity 3.061KB｜

Script

Sure! Here's a sample game called "Emoji Wars" implemented as a single HTML file using JavaScript and enclosed in script tags:

This game features a yellow player emoji controlled by arrow keys, and a red enemy emoji moving horizontally. The objective is to avoid collision with the enemy emoji. If a collision occurs, an alert will be shown saying "Game Over!", and the game will be reset.

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[PR]現在の売れ筋ゲームランキング

Click here for free DL of the app version that can save data.

Sure! Here's a sample game called "Emoji Wars" implemented as a single HTML file using JavaScript and enclosed in script tags:

```html
<!DOCTYPE html>
<html>
<head>
  <title>Emoji Wars</title>
</head>
<body>
  <canvas id="gameCanvas" width="500" height="500"></canvas>

// Define the player variables
    let playerX = canvas.width / 2;
    let playerY = canvas.height - 50;
    const playerWidth = 50;
    const playerHeight = 50;
    let playerSpeed = 5;

// Define the enemy variables
    let enemyX = canvas.width / 2 - 25;
    let enemyY = 20;
    const enemyWidth = 50;
    const enemyHeight = 50;
    let enemySpeed = 2;

// Define the key control variables
    let leftKey = false;
    let rightKey = false;

// Add event listeners for key presses
    document.addEventListener("keydown", keyDownHandler, false);
    document.addEventListener("keyup", keyUpHandler, false);

function keyDownHandler(event) {
      if (event.keyCode === 37) {
        leftKey = true;
      } else if (event.keyCode === 39) {
        rightKey = true;
      }
    }

function keyUpHandler(event) {
      if (event.keyCode === 37) {
        leftKey = false;
      } else if (event.keyCode === 39) {
        rightKey = false;
      }
    }

function drawPlayer() {
      ctx.beginPath();
      ctx.rect(playerX, playerY, playerWidth, playerHeight);
      ctx.fillStyle = "yellow";
      ctx.fill();
      ctx.closePath();
    }

function drawEnemy() {
      ctx.beginPath();
      ctx.rect(enemyX, enemyY, enemyWidth, enemyHeight);
      ctx.fillStyle = "red";
      ctx.fill();
      ctx.closePath();
    }

function movePlayer() {
      if (leftKey && playerX > 0) {
        playerX -= playerSpeed;
      } else if (rightKey && playerX + playerWidth < canvas.width) {
        playerX += playerSpeed;
      }
    }

function moveEnemy() {
      if (enemyX + enemyWidth > canvas.width || enemyX < 0) {
        enemySpeed = -enemySpeed;
      }
      enemyX += enemySpeed;
    }

function collisionDetection() {
      if (playerX < enemyX + enemyWidth &&
        playerX + playerWidth > enemyX &&
        playerY < enemyY + enemyHeight &&
        playerY + playerHeight > enemyY) {
        alert("Game Over!");
        document.location.reload();
      }
    }

function draw() {
      ctx.clearRect(0, 0, canvas.width, canvas.height);
      
      drawPlayer();
      drawEnemy();
      
      movePlayer();
      moveEnemy();
      
      collisionDetection();
      
      requestAnimationFrame(draw);
    }

draw();
  });
  </script>
</body>
</html>
```