Gaming machine using multiple triggers to determine an award from a subset of displayed awards
A gaming system includes at least one input device adapted to receive a physical item associated with a monetary value that establishes a credit balance, an input indicative of a wager drawn on the credit balance for a wagering game, and a cashout input that initiates a payout from the credit balance. In response to a wager input, a wagering game is initiated that includes the spinning and stopping of a set of bonus reels through a plurality of bonus spins populating a bonus array with bonus symbols. The bonus reels comprise a combination of symbols reducing display processing requirements and improve mapping random numbers to displayed symbols for display during bonus spins having reduced durations. When completed, an award is determined based according to values associated with less than all of the bonus symbols displayed in a bonus outcome array.
1. A gaming system comprising:
a gaming machine primarily dedicated to playing at least one casino wagering game, the gaming machine including an electronic display device and one or more electronic input devices; and
game-logic circuitry configured to perform the operations of:
detecting, via at least one of the one or more electronic input devices, a physical item associated with a monetary value that establishes a credit balance;
initiating the casino wagering game in response to an input indicative of a wager drawn from the credit balance;
rendering graphics, via the electronic display device, of an active array of symbol positions;
animating, via the electronic display device, the spinning and stopping of symbol-bearing reels through one or more spins;
animating, via the electronic display device, population of the active array with value-bearing symbols borne by the stopped reels;
in response to the active array including a first predetermined number of the value-bearing symbols, animating, via the electronic display device, expansion of the active array to include additional symbol positions;
repeating, with the expanded array, the operation of animating the spinning and stopping of symbol-bearing reels and the operation of animating the population of the active array;
in response to the expanded active array including a second predetermined number of the value-bearing symbols, animating, via the electronic display device, further expansion of the active array to include further additional symbol positions, the second predetermined number being different than the first predetermined number;
providing an award based on values borne by the value-bearing symbols; and
receiving, via at least one of the one or more electronic input devices, a cashout input that initiates a payout from the credit balance.
2. The gaming system of claim 1 , wherein the operation of animating the spinning and stopping of symbol-bearing reals is in response to a trigger event in a base game of the casino wagering game.
3. The gaming system of claim 1 , wherein each spin decrements a spin counter from an initial value, and wherein a reset event occurring during the spins resets the spin counter to the initial value.
4. The gaming system of claim 3 , wherein the reset event is a new occurrence of the value-bearing symbol in the active array.
5. The gaming system of claim 1 , wherein each symbol position is associated with a respective one of the symbol-bearing reels.
6. The gaming system of claim 1 , wherein the value-bearing symbols in the active array are held in place during the repeating operation.
7. The gaming system of claim 1 , wherein the operation of animating expansion includes adding a row to the active array.
8. A method of operating a gaming machine, the gaming machine primarily dedicated to playing at least one casino wagering game, the gaming machine including an electronic display device and one or more electronic input devices, the method comprising the operations of:
detecting, via at least one of the one or more electronic input devices, a physical item associated with a monetary value that establishes a credit balance;
initiating the casino wagering game in response to an input indicative of a wager drawn from the credit balance;
rendering graphics, via the electronic display device, of an active array of symbol positions;
animating, via the electronic display device, the spinning and stopping of symbol-bearing reels through one or more spins;
animating, via the electronic display device, population of the active array with value-bearing symbols borne by the stopped reels;
in response to the active array including a first predetermined number of the value-bearing symbols, animating, via the electronic display device, expansion of the active array to include additional symbol positions and repeating, with the expanded active array, the operation of animating the spinning and stopping of symbol-bearing reels and the operation of animating the population of the active array;
in response to the expanded active array including a second predetermined number of the value-bearing symbols, animating, via the electronic display device, further expansion of the active array to include further additional symbol positions, the second predetermined number being different than the first predetermined number;
providing an award based on values borne by the value-bearing symbols; and
receiving, via at least one of the one or more electronic input devices, a cashout input that initiates a payout from the credit balance.
9. The method of claim 8 , wherein the operation of animating the spinning and stopping of symbol-bearing reels is in response to a trigger event in a base game of the casino wagering game.
10. The method of claim 8 , wherein each spin decrements a spin counter from an initial value, and wherein a reset event occurring during the spins resets the spin counter to the initial value.
11. The method of claim 10 , wherein the reset event is a new occurrence of the value-bearing symbol in the active array.
12. The method of claim 8 , wherein each symbol position is associated with a respective one of the symbol-bearing reels.
13. The method of claim 8 , wherein the value-bearing symbols in the active array are held in place during the repeating operation.
14. The method of claim 8 , wherein the operation of animating expansion includes adding a row to the active array.
15. A method of operating a gaming machine, the gaming machine primarily dedicated to playing at least one casino wagering game, the gaming machine including an electronic display device and one or more electronic input devices, the method comprising the operations of:
detecting, via at least one of the one or more electronic input devices, a physical item associated with a monetary value that establishes a credit balance;
initiating the casino wagering game in response to an input indicative of a wager drawn from the credit balance;
rendering graphics, via the electronic display device, of an active array of symbol positions;
randomly generating special symbols to populate the active array;
in response to the active array including a first predetermined number of the value-bearing symbols, animating, via the electronic display device, expansion of the active array to include additional symbol positions and repeating the generating operation with the expanded active array;
in response to the expanded active array including a second predetermined number of the value-bearing symbols, animating, via the electronic display device, further expansion of the active array to include further additional symbol positions, the second predetermined number being different than the first predetermined number;
providing an award based on values borne by value-bearing the symbols; and
receiving, via at least one of the one or more electronic input devices, a cashout input that initiates a payout from the credit balance.
16. The method of claim 15 , wherein the generating operation includes animating, via the electronic display device, the spinning and stopping of a plurality of symbol-bearing reels through one or more spins, the reels bearing the value-bearing symbols.
17. The method of claim 15 , wherein the operation of animating expansion includes adding a row to the active array.