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Javascript – How to delete an Object in JS?

I have some monsters writed in my code, and I would like to delete them at the moment they die. Their image, HP, attackPower ect.. So they don’t appear anymore nor deal damage. However, I don’t really know how to.

I’ve tried to nullify them, this isn’t working. Same for Delete (I am struggling hard). So do I have to make an array of monsters ? Here is my code :

Class Person

  attack(target){    
    while (this.sprite.animationFrameProgress === 8 ){
      this.sprite.animationFrameProgress -= 0.5;
    }
    if (this.sprite.animationFrameProgress === 0){
      target.health -= this.attackPower;
    }
    if (target.health <= 0){
      delete target.???;
    }
    console.log(target.health);
  }

Class OverworldMap

playerAttackNearestMonster() {
    const player = this.gameObjects.hero;
    for (const key in this.gameObjects) {
      if (key !== 'hero' && this.gameObjects.hasOwnProperty(key)) {
        const monster = this.gameObjects[key];
        const distanceX = Math.abs(monster.x - player.x);
        const distanceY = Math.abs(monster.y - player.y);
        if (distanceX <= 16 && distanceY <= 16) {
          monster.sprite.setAnimation("fighting");
          monster.attack(player);
          if (player.attacking){
            player.attack(monster);
          }
         
        }
      }
    }

slime: new Monster({
        x: utils.withGrid(7),
        y: utils.withGrid(8),
        pixelSize: 32,
        health : 50,
        attackPower : 15,
        animations : {
          "monster" : [[0,0], [1,0],[2,0], [3,0]],
          "monster-left" : [[0,5], [1,5],[2,5], [3,5]],
          "monsterWalk-down" : [[0,1], [1,1],[2,1], [3,1],[4,1], [5,1]],
          "monsterWalk-up" : [[0,1], [1,1],[2,1], [3,1],[4,1], [5,1]],
          "monsterWalk-right" : [[0,1], [1,1],[2,1], [3,1],[4,1], [5,1]],
          "monsterWalk-left" : [[0,6], [1,6],[2,6], [3,6],[4,6], [5,6]],
      },
        src: "/images/characters/monsters/slime.png"
      }),
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2

Answers


  1. Chosen as BEST ANSWER
    0

    I've found a solution thanks to Justinas. Here is it :

    
    removeGameObject(gameObject) {
      for (const key in this.gameObjects) { 
        if (this.gameObjects[key] === gameObject) {
          delete this.gameObjects[key]; // delete the object
          console.log(`Object ${key} removed from the game.`);
          return;
        }
      }

  2. 0

    Move your object deletion out of attack into playerAttackNearestMonster:

    player.attack(monster);

if (monster.health <= 0) {
    delete this.gameObjects[key]
}
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