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| -rw-r--r-- | LICENSE | 191 | ||||
| -rw-r--r-- | README.md | 6 | ||||
| -rw-r--r-- | tonkadur.py | 282 | ||||
| -rw-r--r-- | tonkadur_ui.py | 48 |
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diff --git a/README.md b/README.md new file mode 100644 index 0000000..aed62fb --- /dev/null +++ b/README.md @@ -0,0 +1,6 @@ +#  +Python3 interpreter for [Tonkadur](https://tonkadur.of.tacticians.online/), +a narrative scripting language. + +This interpreter is mainly for testing purposes and should likely not be used +as-is within your game engine. diff --git a/tonkadur.py b/tonkadur.py new file mode 100644 index 0000000..d4b2e73 --- /dev/null +++ b/tonkadur.py @@ -0,0 +1,282 @@ +import copy +import json +import math +import random + +class Tonkadur: + def generate_instance_of (self, typedef): + if (typedef['category'] == "boolean"): + 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 == "boolean"): + 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 == "boolean"): + 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." + self.allocated_data + self.allocated_data += 1 + self.memory[address] = self.generate_instance_of(computation['target']) + + 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 == "ref"): + return [self.compute(computation['address'])] + elif (computation_category == "relative_ref"): + base = self.compute(computation['base']) + 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 == "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: + target = target[addr] + + return target + + def resolve_choice_to (self, line): + self.available_choices = [] + self.program_counter = line + + def run (self): + while True: + #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] + + 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 = "" + access_full = self.compute(instruction["reference"]) + + for access in access_full: + pre_val = current_val + last_access = access + if (access in current_val): + current_val = current_val[access] + + pre_val[last_access] = self.compute(instruction["value"]) + + self.program_counter += 1 + diff --git a/tonkadur_ui.py b/tonkadur_ui.py new file mode 100644 index 0000000..4ffaca4 --- /dev/null +++ b/tonkadur_ui.py @@ -0,0 +1,48 @@ +import argparse + +import tonkadur + +parser = argparse.ArgumentParser( + description = ( + "Tonkadur Python Interpreter" + ) +) + +parser.add_argument( + '-f', + '--file', + dest='world_file', + type = str, + help = 'Wyrd JSON file to load.', +) + +args = parser.parse_args() +state = tonkadur.Tonkadur(args.world_file) + +#try: +while True: + result = state.run() + result_category = result['category'] + + if (result_category == "end"): + print("Program ended") + break + elif (result_category == "display"): + print(result['content']) + elif (result_category == "assert"): + print("Assert failed at line " + str(result['line']) + ":" + str(result['message'])) + elif (result_category == "resolve_choices"): + current_choice = 0; + + for choice in result['choices']: + print(str(current_choice) + ". " + ''.join(choice[0]['content'])) + current_choice += 1 + + user_choice = input("Your choice? ") + state.resolve_choice_to(result['choices'][int(user_choice)][1]) + elif (result_category == "event"): + print("Unhandled event:" + str(result)) + +#except Error: +# print("failed.\n") +print(str(state.memory)) |