var type = "Iron";
var block = "";
var respawnTime;
var hits;
var canBeMined;
function init(event){
    hits = Math.random() * 5+1;
    canBeMined = true;
    switch(type){
        case "Coal":
        block = "minecraft:coal_ore";
        event.block.setModel(block);
        respawnTime = 600
        break;
        case "Iron":
        block = "minecraft:iron_ore";
        event.block.setModel(block);
        respawnTime = 120
        break;
        case "Gold":
        block = "minecraft:gold_ore";
        event.block.setModel(block);
        respawnTime = 30
        break;
    }
}
function clicked(event){
    hits--;
    if(hits <= 0 && canBeMined){
              var y = event.block.getY()+2;
        event.block.executeCommand("summon Item "+event.block.getX()+" "+y+" "+event.block.getZ()+" {Item:{id:" + block +",Damage:0,Count:1}}");
        event.block.setModel("minecraft:bedrock");
        canBeMined = false;
        if (!event.block.timers.has(1)){
        event.block.timers.start(1,respawnTime*20,false);
        }
    }
}
function timer(event){
    if(event.id == 1){
        event.block.setModel(block);
        hits = Math.random() * 5+1;
        canBeMined = true
    }
}