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75_Roulette in java

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andrew
2022-01-11 21:14:23 +00:00
parent ff09feae2a
commit 5c632b2d7e
3 changed files with 368 additions and 0 deletions
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65
75_Roulette/java/Bet.java Normal file
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/* A bet has a target (the code entered, which is 1-36, or special values for
* the various groups, zero and double-zero), and an amount in dollars
*/
public class Bet {
public int target;
public int amount;
/* bet on a target, of an amount */
public Bet(int on, int of) {
target = on; amount = of;
}
/* check if this is a valid bet - on a real target and of a valid amount */
public boolean isValid() {
return ((target > 0) && (target <= 50) &&
(amount >= 5) && (amount <= 500));
}
/* utility to return either the odds amount in the case of a win, or zero for a loss */
private int m(boolean isWon, int odds) {
return isWon? odds: 0;
}
/* look at the wheel to see if this bet won.
* returns 0 if it didn't, or the odds if it did
*/
public int winsOn(Wheel w) {
if (target < 37) {
// A number bet 1-36 wins at odds of 35 if it is the exact number
return m(w.isNumber() && (w.number() == target), 35);
} else
switch (target) {
case 37: // 1-12, odds of 2
return m(w.isNumber() && (w.number() <= 12), 2);
case 38: // 13-24, odds of 2
return m(w.isNumber() && (w.number() > 12) && (w.number() <= 24), 2);
case 39: // 25-36, odds of 2
return m(w.isNumber() && (w.number() > 24), 2);
case 40: // Column 1, odds of 2
return m(w.isNumber() && ((w.number() % 3) == 1), 2);
case 41: // Column 2, odds of 2
return m(w.isNumber() && ((w.number() % 3) == 2), 2);
case 42: // Column 3, odds of 2
return m(w.isNumber() && ((w.number() % 3) == 0), 2);
case 43: // 1-18, odds of 1
return m(w.isNumber() && (w.number() <= 18), 1);
case 44: // 19-36, odds of 1
return m(w.isNumber() && (w.number() > 18), 1);
case 45: // even, odds of 1
return m(w.isNumber() && ((w.number() %2) == 0), 1);
case 46: // odd, odds of 1
return m(w.isNumber() && ((w.number() %2) == 1), 1);
case 47: // red, odds of 1
return m(w.isNumber() && (w.color() == Wheel.BLACK), 1);
case 48: // black, odds of 1
return m(w.isNumber() && (w.color() == Wheel.RED), 1);
case 49: // single zero, odds of 35
return m(w.value().equals("0"), 35);
case 50: // double zero, odds of 35
return m(w.value().equals("00"), 35);
}
throw new RuntimeException("Program Error - invalid bet");
}
}