fjalvarezdd /
java-tdd-katas
| 1 | package com.fjalvarez.tdd.darts; |
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| 2 | |||
| 3 | public class Darts { |
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| 4 | |||
| 5 | enum Multiplier { |
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| 6 | DOUBLE, TRIPLE |
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| 7 | } |
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| 8 | |||
| 9 | private int dartsLeft = 3; |
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| 10 | private int turn = 1; |
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| 11 | |||
| 12 | private int score = 301; |
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| 13 | private int lastTurnScore = score; |
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| 14 | private boolean isFinished = false; |
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| 15 | |||
| 16 | public int score() { |
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| 17 | return score; |
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| 18 | } |
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| 19 | |||
| 20 | public void dart(int i) { |
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| 21 | computeScore(i ,null); |
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| 22 | } |
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| 23 | |||
| 24 | public void dart(int score, Multiplier multiplier) { |
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| 25 | int mult = 0; |
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| 26 | switch (multiplier) { |
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| 27 | case DOUBLE: |
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| 28 | mult = 2; |
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| 29 | break; |
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| 30 | case TRIPLE: |
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| 31 | mult = 3; |
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| 32 | break; |
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| 33 | } |
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| 34 | int dartScore = mult*score; |
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| 35 | computeScore(dartScore, multiplier); |
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| 36 | } |
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| 37 | |||
| 38 | private void computeScore(int dartScore, Multiplier multiplier) { |
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| 39 | int newScore = score - dartScore; |
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| 40 | if (newScore == 0 && multiplier.equals(Multiplier.DOUBLE)) { |
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| 41 | isFinished = true; |
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| 42 | return; |
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| 43 | } |
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| 44 | |||
| 45 | if ((newScore == 1 && dartsLeft != 1) || (newScore <0)) { |
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| 46 | newScore = lastTurnScore; |
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| 47 | dartsLeft = 3; |
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| 48 | turn++; |
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| 49 | } else if (dartsLeft == 1) { |
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| 50 | lastTurnScore = newScore; |
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| 51 | dartsLeft = 3; |
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| 52 | turn++; |
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| 53 | } else { |
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| 54 | dartsLeft--; |
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| 55 | } |
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| 56 | score = newScore; |
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| 57 | } |
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| 58 | |||
| 59 | public int dartsLeft() { |
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| 60 | return dartsLeft; |
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| 61 | } |
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| 62 | |||
| 63 | public int getTurn() { |
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| 64 | return turn; |
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| 65 | } |
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| 66 | |||
| 67 | public boolean isFinished() { |
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| 68 | return isFinished; |
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| 69 | } |
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| 70 | } |
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| 71 |