# Generate randomly placed treasures and destroy them later.

# This spawns an item with lifetime at a random point.
def spawnValuable(itemType, lifetime):
    x = game.randomInteger(12, 68)
    y = game.randomInteger(12, 56)
    item = game.spawnXY(itemType, x, y)
    item.destroyTime = game.time + lifetime

# This spawns the treasure set.
def spawnTreasures():
    spawnValuable("bronze-coin", 6)
    spawnValuable("silver-coin", 5)
    spawnValuable("gold-coin", 4)
    spawnValuable("gem", 2)

# The event handler for items.
def onSpawn(event):
    item = event.target
    while True:
        # If game time is greater than item destroyTime: 
        if item.destroyTime < game.time:
            # Call item's destroy() method:
            item.destroy()
        
game.setActionFor("bronze-coin", "spawn", onSpawn)
game.setActionFor("silver-coin", "spawn", onSpawn)
game.setActionFor("gold-coin", "spawn", onSpawn)
game.setActionFor("gem", "spawn", onSpawn)

# Game settings, goals and UI.
game.spawnTime = 0
game.spawnInterval = 3
game.score = 0
if not db.get("topScore"):
    db.set("topScore", 0)
ui.track(game, "time")
ui.track(game, "score")
ui.track(db, "topScore")
goal = game.addManualGoal("Collect at least 50 gold in 30 seconds.")

# The player setup.
player = game.spawnPlayerXY("captain", 40, 34)
player.maxSpeed = 30

def onCollect(event):
    item = event.other
    # If the item has a "value" property:
    if item.value:
        # Increase the game score by item's value:
        game.score += item.value

player.on("collect", onCollect)

# This checks timers for treasure spawning.
def checkSpawns():
    # If game.time is greater than game.spawnTime:
    if game.time > game.spawnTime:
        # Call spawnTreasures to create more items.
        spawnTreasures()
        # Increase game.spawnTime by game.spawnInterval:
        game.spawnTime += game.spawnInterval

# This checks the goal state.
def checkGoal():
    if game.score >= 50:
        game.setGoalState(goal, True)
    else:
        game.setGoalState(goal, False)

# This checks the game state.
def checkGameOver():
    if game.time > 30:
        checkGoal()
        db.set("topScore", game.score)

while True:
    checkSpawns()
    checkGameOver()