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import copy
import json
import math
import random
class Tonkadur:
def generate_instance_of (self, typedef):
if (typedef['category'] == "bool"):
return False
elif (typedef['category'] == "float"):
return 0.0
elif (typedef['category'] == "int"):
return 0
elif (typedef['category'] == "rich_text"):
result = dict()
result['content'] = []
result['effect'] = None
return result
elif (typedef['category'] == "string"):
return ""
elif (typedef['category'] == "list"):
return dict()
elif (typedef['category'] == "pointer"):
return []
elif (typedef['category'] == "structure"):
return copy.deepcopy(self.types[typedef['name']])
def __init__ (self, json_file):
self.memory = dict()
self.types = dict()
self.sequences = dict()
self.code = []
self.program_counter = 0
self.allocated_data = 0
self.available_choices = []
with open(json_file, 'r') as f:
json_content = json.load(f)
#### INITIALIZE TYPES ##############################################
for typedef in json_content['structure_types']:
new_type = dict()
for field in typedef['fields']:
new_type[field['name']] = self.generate_instance_of(field['type'])
self.types[typedef['name']] = new_type
#### INITIALIZE VARIABLES ##########################################
for vardef in json_content['variables']:
self.memory[vardef['name']] = self.generate_instance_of(vardef['type'])
#### INITIALIZE SEQUENCES ##########################################
for seqdef in json_content['sequences']:
self.sequences[seqdef['name']] = seqdef['line']
#### INITIALIZE CODE ###############################################
self.code = json_content['code']
def compute (self, computation):
computation_category = computation['category']
if (computation_category == "add_rich_text_effect"):
effect = dict()
effect['name'] = computation['effect']
effect['parameters'] = []
for c in computation['parameters']:
effect['parameters'].append(self.compute(c))
result = dict()
result['content'] = []
result['effect'] = effect
for c in computation['content']:
result['content'].append(self.compute(c))
return result
elif (computation_category == "cast"):
origin_type = computation['from']['category']
target_type = computation['to']['category']
content = self.compute(computation['content'])
if (target_type == "string"):
return str(content)
elif (target_type == "float"):
return float(content)
elif (target_type == "bool"):
if (origin_type == "string"):
return (content == "true")
elif (origin_type == "int"):
return (content != 0)
elif (target_type == "int"):
if (origin_type == "float"):
return math.floor(content)
else:
return int(content)
elif (computation_category == "constant"):
target_type = computation['type']['category']
content = computation['value']
if (target_type == "string"):
return content
elif (target_type == "float"):
return float(content)
elif (target_type == "bool"):
return (content == "true")
elif (target_type == "int"):
return int(content)
else:
print("Unknown Constant type '" + str(target_type) + "'")
raise "error"
elif (computation_category == "if_else"):
cond = self.compute(computation['condition'])
if (cond):
return self.compute(computation['if_true'])
else:
return self.compute(computation['if_false'])
elif (computation_category == "new"):
address = ".alloc." + str(self.allocated_data)
self.allocated_data += 1
self.memory[address] = self.generate_instance_of(computation['target'])
#print("Allocated " + str(address) + " = " + str(self.memory[address]))
return [address]
elif (computation_category == "operation"):
operator = computation['operator']
x = self.compute(computation['x'])
y = self.compute(computation['y']) if ('y' in computation) else None
if (operator == "divide"):
if (isinstance(x, int)):
return x // y
else:
return x / y
elif (operator == "minus"):
return x - y
elif (operator == "modulo"):
return x % y
elif (operator == "plus"):
return x + y
elif (operator == "power"):
return x ** y
elif (operator == "rand"):
return random.randint(x, y)
elif (operator == "times"):
return x * y
elif (operator == "and"):
return x and y
elif (operator == "not"):
return not x
elif (operator == "less_than"):
return x < y
elif (operator == "equals"):
return x == y
else:
print("unknown operator " + operator)
elif (computation_category == "address"):
result = self.compute(computation['address'])
if (isinstance(result, list)):
return result
else:
return [result]
elif (computation_category == "relative_address"):
base = self.compute(computation['base']).copy()
base.append(self.compute(computation['extra']))
return base
elif (computation_category == "rich_text"):
result = dict()
result['effect'] = None
result['content'] = []
for c in computation['content']:
result['content'].append(self.compute(c))
return result
elif (computation_category == "newline"):
result = dict()
result['effect'] = None
result['content'] = ['\n']
return result
elif (computation_category == "size"):
target = self.memory
access = self.compute(computation['reference'])
for addr in access:
target = target[addr]
return len(target)
elif (computation_category == "value_of"):
target = self.memory
access = self.compute(computation['reference'])
for addr in access:
#print("Reading " + str(addr) + " of " + str(target))
# print("addr = " + str(addr))
target = target[addr]
# if (isinstance(target, list)):
# print("That's a list.")
return target
def resolve_choice_to (self, line):
self.available_choices = []
self.program_counter = line
def run (self):
while True:
#print("\nmemory: " + str(self.memory))
#print("\nline: " + str(self.program_counter))
instruction = self.code[self.program_counter]
instruction_category = instruction['category']
#print("instruction:" + str(instruction))
if (instruction_category == "add_choice"):
self.available_choices.append(
[
self.compute(instruction['label']),
self.compute(instruction['address'])
]
)
self.program_counter += 1
elif (instruction_category == "assert"):
condition = self.compute(instruction['condition'])
if (not condition):
result = dict()
result["category"] = "assert"
result["line"] = self.program_counter
result["message"] = self.compute(instruction['message'])
self.program_counter += 1
return result
self.program_counter += 1
elif (instruction_category == "display"):
result = dict()
result["category"] = "display"
result["content"] = self.compute(instruction['content'])
self.program_counter += 1
return result
elif (instruction_category == "end"):
result = dict()
result["category"] = "end"
return result
elif (instruction_category == "event_call"):
result = dict()
result["category"] = "event"
result["name"] = instruction["event"]
params = []
for param in instruction['parameters']:
params.append(self.compute(param))
result["parameters"] = params
self.program_counter += 1
return result
elif (instruction_category == "remove"):
pre_val = self.memory
current_val = pre_val
last_access = ""
for access in self.compute(instruction["reference"]):
pre_val = current_val
last_access = access
current_val = current_val[access]
#print("Removing " + str(last_access) + " of " + str(pre_val))
del pre_val[last_access]
self.program_counter += 1
elif (instruction_category == "resolve_choices"):
result = dict()
result["category"] = "resolve_choices"
result["choices"] = self.available_choices
return result
elif (instruction_category == "set_pc"):
self.program_counter = self.compute(instruction["value"])
elif (instruction_category == "set_value"):
pre_val = self.memory
current_val = pre_val
last_access = ""
#print("Reference:" + str(instruction["reference"]))
access_full = self.compute(instruction["reference"])
#print("Writing: " + str(access_full))
for access in access_full:
pre_val = current_val
last_access = access
#print("Writing " + str(access) + " of " + str(current_val))
if (access in current_val):
current_val = current_val[access]
result = self.compute(instruction["value"])
if (isinstance(result, list) or isinstance(result, dict)):
result = copy.deepcopy(result)
pre_val[last_access] = result
self.program_counter += 1
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