Upgrade scene

On the upgrade scene, the user can upgrade the characters and tower settings.

Character state:

1. Gold amount;
2. “Characters” inset;
3. “Tower” inset. If the user taps it, a popup switches to the tower’s state;
4. Character's buttons. Allow switching between different characters;
5. “Upgrade” button and the price of the upgrade in gold;
6. Character’s icon;
7. Character’s info;
8. “Close scene” button.

Upgrading Characters mechanics:

The user can use gold for improving the following troops’ characteristics: - health; - damage; - the energy that is used for spawning another character. Every character has to have its own upgrade config.

Upgrading characters settings:

Health, damage, energy cost, and price of an upgrade. Characters can’t be upgraded infinitely, so there has to be a max upgrade level.

Tower state:

1. Gold amount
2. “Character” inset. If the user taps on the inset, popup switches to the character’s state;
3. “Tower” inset;
4. Tower’s icon;
5. ----
6. The current level of gold upgrade;
7. The current level of energy upgrade;
8. Tower strength upgrade level, its means tower’s health;
9. “Upgrade gold level” button with the price of upgrading in gold, button in the active state;
10. “Upgrade energy level” button with a price of upgrading;
11. “Close scene” button.

For being upgraded, the tower characteristics must have a config of upgrade with price, current upgrade level, and characteristics value on the level.

Reset popup:

1. Open upgrade scene button
2. Restart battle scene button

Next Level popup:

1. Open upgrade scene button
2. Open battle scene with upgraded opponent’s characteristics