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annotate pytouhou/game/eclrunner.py @ 47:1f1793e7ec8e

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Handle a few more opcodes
author Thibaut Girka <thib@sitedethib.com>
date Mon, 22 Aug 2011 10:49:59 +0200
parents 7195aaf95f6e
children 8353c33d53d4
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1 class ECLRunner(object):
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2 def __init__(self, ecl, sub, frame=0, instruction_pointer=0, implementation=None):
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3 self.ecl = ecl
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4
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5 self.variables = [0, 0, 0, 0,
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6 0., 0., 0., 0.,
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7 0, 0, 0, 0]
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8 self.sub = sub
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9 self.frame = frame
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10 self.instruction_pointer = instruction_pointer
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11
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12 self.stack = []
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14 self.implementation = {4: self.set_variable,
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15 2: self.relative_jump,
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16 3: self.relative_jump_ex,
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17 35: self.call,
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18 36: self.ret,
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19 109: self.memory_write}
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20 if implementation:
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21 self.implementation.update(implementation)
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23
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24 def memory_write(self, value, index):
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25 #TODO
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26 #XXX: this is a hack to display bosses although we don't handle MSG :)
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27 if index == 0:
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28 self.sub = value
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29 self.frame = 0
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30 self.instruction_pointer = 0
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32
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33 def call(self, sub, param1, param2):
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34 self.stack.append((self.sub, self.frame, self.instruction_pointer,
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35 self.variables))
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36 self.sub = sub
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37 self.frame = 0
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38 self.instruction_pointer = 0
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39 self.variables = [param1, 0, 0, 0,
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40 param2, 0., 0., 0.,
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41 0, 0, 0, 0]
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43
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44 def ret(self):
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45 self.sub, self.frame, self.instruction_pointer, self.variables = self.stack.pop()
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48
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49 def set_variable(self, variable_id, value):
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50 #TODO: -10013 and beyond!
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51 self.variables[-10000-variable_id] = value
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54 def relative_jump(self, frame, instruction_pointer):
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55 self.frame, self.instruction_pointer = frame, instruction_pointer
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57
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58 def relative_jump_ex(self, frame, instruction_pointer, variable_id):
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59 if self.variables[-10000-variable_id]:
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60 self.variables[-10000-variable_id] -= 1
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61 self.frame, self.instruction_pointer = frame, instruction_pointer
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64 def update(self):
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65 frame = self.frame
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66 try:
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67 while frame <= self.frame:
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68 frame, instr_type, rank_mask, param_mask, args = self.ecl.subs[self.sub][self.instruction_pointer]
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69
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70 if frame == self.frame:
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71 try:
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72 callback = self.implementation[instr_type]
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73 except KeyError:
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74 print('Warning: unhandled opcode %d!' % instr_type) #TODO
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75 else:
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76 callback(*args)
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77 frame, instr_type, rank_mask, param_mask, args = self.ecl.subs[self.sub][self.instruction_pointer]
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78 if frame <= self.frame:
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79 self.instruction_pointer += 1
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80 except IndexError:
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81 pass #TODO: script ended, destroy enemy
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83 self.frame += 1
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84