量子戰艦遊戲實作與分析

bob = {}
bob['0'] = data['0 0 0'] + data['0 1 0'] + data['0 0 1'] + data['0 1 1']
bob['1'] = data['1 0 0'] + data['1 1 0'] + data['1 0 1'] + data['1 1 1']
plot_histogram(bob)

# 載入必要的函式庫
import sys
if sys.version_info < (3,5):
    raise Exception('請使用Python 3.5或更高版本')

from qiskit import QuantumProgram
import Qconfig
import getpass, random, numpy, math

# 選擇後端：IBM模擬器或真實量子晶片
d = input("是否在真實裝置上執行？(y/n)\n").upper()
if (d=="Y"):
    device = 'ibmqx2'
else:
    device = 'ibmqx_qasm_simulator'
shots = 1024  # 設定執行的次數

#### 內容解密：
1. 程式首先檢查Python版本，確保使用3.5或更高版本，以支援QISKit。
2. 使用者被詢問是否要在真實量子裝置上執行遊戲，或是使用模擬器。
3. `shots`變數定義了量子程式執行的次數，預設為1024次。

### 設定艦船位置

```python
# 設定艦船位置的邏輯
randPlace = input("> 按下Enter開始放置艦船...\n").upper()
shipPos = [ [-1]*3 for _ in range(2)]

for player in [0,1]:
    if ((randPlace=="r")|(randPlace=="R")):
        randPos = random.sample(range(5), 3)
        for ship in [0,1,2]:
            shipPos[player][ship] = randPos[ship]
    else:
        for ship in [0,1,2]:
            choosing = True
            while (choosing):
                position = getpass.getpass("玩家 " + str(player+1) + ", 選擇第 " + str(ship+1) + " 艘艦船的位置 (0-4)\n" )
                if position.isdigit():
                    position = int(position)
                    if (position in [0,1,2,3,4]) and (not position in shipPos[player]):
                        shipPos[player][ship] = position
                        choosing = False
                    elif position in shipPos[player]:
                        print("\n您已經在該位置放置了艦船，請重新選擇。\n")
                    else:
                        print("\n無效的位置，請重新選擇。\n")
                else:
                    print("\n無效的位置，請重新選擇。\n")

while (game):
    input("> Press Enter to place some bombs...\n")
    # 詢問玩家炸彈位置
    for player in range(2):
        print("\n\nIt's now Player " + str(player+1) + "'s turn.\n")
        choosing = True
        while (choosing):
            position = input("Choose a position to bomb (0, 1, 2, 3 or 4)\n")
            if position.isdigit() and int(position) in range(5):
                bomb[player][int(position)] += 1
                choosing = False
            else:
                print("\nThat's not a valid position. Try again.\n")

    # 建立和執行量子程式
    for player in range(2):
        Q_program = QuantumProgram()
        q = Q_program.create_quantum_register("q", 5)
        c = Q_program.create_classical_register("c", 5)
        gridScript = Q_program.create_circuit("gridScript", [q], [c])
        
        for position in range(5):
            for n in range(bomb[(player+1)%2][position]):
                for ship in [0,1,2]:
                    if position == shipPos[player][ship]:
                        frac = 1/(ship+1)
                        gridScript.u3(frac * math.pi, 0.0, 0.0, q[position])
        
        for position in range(5):
            gridScript.measure(q[position], c[position])
        
        results = Q_program.execute(["gridScript"], backend=device, shots=shots)
        grid[player] = results.get_counts("gridScript")

    # 結果處理
    if 'Error' in grid[0].values() or 'Error' in grid[1].values():
        print("\nThe process timed out. Try this round again.\n")
    else:
        damage = [[0]*5 for _ in range(2)]
        for player in range(2):
            for bitString in grid[player].keys():
                for position in range(5):
                    # 計算損壞百分比
                    if bitString[4-position] == '1':
                        damage[player][position] += grid[player][bitString] / shots

if (bitString[4-position]=="1"):
    damage[player][position] += grid[player]

for position in shipPos[player]:
    if (damage[player][position] > 0.1):
        if (damage[player][position]>0.9):
            display[position] = "100%"
        else:
            display[position] = str(int(100*damage[player][position])) + "% "

if (damage[player][shipPos[player][0]]>.9) and (damage[player][shipPos[player][1]]>.9) and (damage[player][shipPos[player][2]]>.9):
    print("***All Player " + str(player+1) + "'s ships have been destroyed!***\n\n")
    game = False