def get_layout_action2s(spritelayout, feature, spr_pos): """ @param spr_pos: Position information of the sprite view. @type spr_pos: L{Position} """ ground_sprite = None building_sprites = [] actions = [] if feature not in action2.features_sprite_layout: raise generic.ScriptError( "Sprite layouts are not supported for feature '{}'.".format( general.feature_name(feature))) # Allocate registers param_map = {} param_registers = [] for param in spritelayout.param_list: reg = action2var.VarAction2CallParam(param.value) param_registers.append(reg) param_map[param.value] = reg param_map = (param_map, lambda name, value, pos: action2var. VarAction2LoadCallParam(value, name)) spritelayout.register_map[feature] = param_registers # Reduce all expressions, can't do that earlier as feature is not known all_sprite_sets = [] layout_sprite_list = [] # Create a new structure for layout_sprite in spritelayout.layout_sprite_list: param_list = [] layout_sprite_list.append( (layout_sprite.type, layout_sprite.pos, param_list)) for param in layout_sprite.param_list: param_val = action2var.reduce_varaction2_expr( param.value, feature, [param_map]) param_list.append((param.name, param_val)) if isinstance(param_val, expression.SpriteGroupRef): spriteset = action2.resolve_spritegroup(param_val.name) if not spriteset.is_spriteset(): raise generic.ScriptError( "Expected a reference to a spriteset.", param_val.pos) all_sprite_sets.append(spriteset) actions.extend( action1.add_to_action1(all_sprite_sets, feature, spritelayout.pos)) temp_registers = [] for type, pos, param_list in layout_sprite_list: if type.value not in layout_sprite_types: raise generic.ScriptError( "Invalid sprite type '{}' encountered. Expected 'ground', 'building', or 'childsprite'." .format(type.value), type.pos, ) sprite = Action2LayoutSprite(feature, layout_sprite_types[type.value], pos, [param_map]) for name, value in param_list: sprite.set_param(name, value) temp_registers.extend(sprite.get_all_registers()) if sprite.type == Action2LayoutSpriteType.GROUND: if ground_sprite is not None: raise generic.ScriptError( "Sprite layout can have no more than one ground sprite", spritelayout.pos) ground_sprite = sprite else: building_sprites.append(sprite) if ground_sprite is None: if len(building_sprites) == 0: # no sprites defined at all, that's not very much. raise generic.ScriptError( "Sprite layout requires at least one sprite", spr_pos) # set to 0 for no ground sprite ground_sprite = Action2LayoutSprite(feature, Action2LayoutSpriteType.GROUND) ground_sprite.set_param(expression.Identifier("sprite"), expression.ConstantNumeric(0)) action6.free_parameters.save() act6 = action6.Action6() advanced = any(x.is_advanced_sprite() for x in building_sprites + [ground_sprite]) offset = 4 sprite_num = ground_sprite.get_sprite_number() sprite_num, offset = actionD.write_action_value(sprite_num, actions, act6, offset, 4) if advanced: offset += ground_sprite.get_registers_size() for sprite in building_sprites: sprite_num = sprite.get_sprite_number() sprite_num, offset = actionD.write_action_value( sprite_num, actions, act6, offset, 4) if advanced: offset += sprite.get_registers_size() offset += 3 if sprite.type == Action2LayoutSpriteType.CHILD else 6 if len(act6.modifications) > 0: actions.append(act6) layout_action = Action2Layout( feature, spritelayout.name.value + " - feature {:02X}".format(feature), spritelayout.pos, ground_sprite, building_sprites, param_registers, ) actions.append(layout_action) if temp_registers: varact2parser = action2var.Varaction2Parser(feature, feature) for register_info in temp_registers: reg, expr = register_info[1], register_info[2] if reg is None: continue varact2parser.parse_expr(expr) varact2parser.var_list.append(nmlop.STO_TMP) varact2parser.var_list.append(reg) varact2parser.var_list.append(nmlop.VAL2) varact2parser.var_list_size += reg.get_size() + 2 # Only continue if we actually needed any new registers if temp_registers and varact2parser.var_list: # lgtm[py/uninitialized-local-variable] # Remove the last VAL2 operator varact2parser.var_list.pop() varact2parser.var_list_size -= 1 actions.extend(varact2parser.extra_actions) extra_act6 = action6.Action6() for mod in varact2parser.mods: extra_act6.modify_bytes(mod.param, mod.size, mod.offset + 4) if len(extra_act6.modifications) > 0: actions.append(extra_act6) varaction2 = action2var.Action2Var( feature, "{}@registers - feature {:02X}".format(spritelayout.name.value, feature), spritelayout.pos, 0x89) varaction2.var_list = varact2parser.var_list ref = expression.SpriteGroupRef(spritelayout.name, [], None, layout_action) varaction2.ranges.append( action2var.VarAction2Range(expression.ConstantNumeric(0), expression.ConstantNumeric(0), ref, "")) varaction2.default_result = ref varaction2.default_comment = "" # Add two references (default + range) # Make sure that registers allocated here are not used by the spritelayout action2.add_ref(ref, varaction2, True) action2.add_ref(ref, varaction2, True) spritelayout.set_action2(varaction2, feature) actions.append(varaction2) else: spritelayout.set_action2(layout_action, feature) action6.free_parameters.restore() return actions
def parse_randomswitch(random_switch): """ Parse a randomswitch block into actions @param random_switch: RandomSwitch block to parse @type random_switch: L{RandomSwitch} @return: List of actions @rtype: C{list} of L{BaseAction} """ action_list = action2real.create_spriteset_actions(random_switch) feature = next(iter(random_switch.feature_set)) type_byte, count, count_expr, start_bit, bits_available = parse_randomswitch_type(random_switch) total_prob = sum([choice.probability.value for choice in random_switch.choices]) assert total_prob > 0 nrand = 1 while nrand < total_prob: nrand <<= 1 # Verify that enough random data is available if min(1 << bits_available, 0x80) < nrand: msg = "The maximum sum of all random_switch probabilities is {:d}, encountered {:d}." msg = msg.format(min(1 << bits_available, 0x80), total_prob) raise generic.ScriptError(msg, random_switch.pos) randbit, nrand = parse_randomswitch_dependencies(random_switch, start_bit, bits_available, nrand) random_action2 = Action2Random(feature, random_switch.name.value, random_switch.pos, type_byte, count, random_switch.triggers.value, randbit, nrand) random_switch.random_act2 = random_action2 action6.free_parameters.save() act6 = action6.Action6() offset = 8 if count is not None else 7 #divide the 'extra' probabilities in an even manner i = 0 resulting_prob = dict((c, c.probability.value) for c in random_switch.choices) while i < (nrand - total_prob): best_choice = None best_ratio = 0 for choice in random_switch.choices: #float division, so 9 / 10 = 0.9 ratio = choice.probability.value / float(resulting_prob[choice] + 1) if ratio > best_ratio: best_ratio = ratio best_choice = choice assert best_choice is not None resulting_prob[best_choice] += 1 i += 1 for choice in random_switch.choices: res_prob = resulting_prob[choice] result, comment = action2var.parse_result(choice.result.value, action_list, act6, offset, random_action2, None, 0x89, res_prob) offset += res_prob * 2 comment = "({:d}/{:d}) -> ({:d}/{:d}): ".format(choice.probability.value, total_prob, res_prob, nrand) + comment random_action2.choices.append(RandomAction2Choice(result, res_prob, comment)) if len(act6.modifications) > 0: action_list.append(act6) action_list.append(random_action2) if count_expr is None: random_switch.set_action2(random_action2, feature) else: # Create intermediate varaction2 varaction2 = action2var.Action2Var(feature, '{}@registers'.format(random_switch.name.value), random_switch.pos, 0x89) varact2parser = action2var.Varaction2Parser(feature) varact2parser.parse_expr(count_expr) varaction2.var_list = varact2parser.var_list action_list.extend(varact2parser.extra_actions) extra_act6 = action6.Action6() for mod in varact2parser.mods: extra_act6.modify_bytes(mod.param, mod.size, mod.offset + 4) if len(extra_act6.modifications) > 0: action_list.append(extra_act6) ref = expression.SpriteGroupRef(random_switch.name, [], None, random_action2) varaction2.ranges.append(action2var.VarAction2Range(expression.ConstantNumeric(0), expression.ConstantNumeric(0), ref, '')) varaction2.default_result = ref varaction2.default_comment = '' # Add two references (default + range) action2.add_ref(ref, varaction2) action2.add_ref(ref, varaction2) random_switch.set_action2(varaction2, feature) action_list.append(varaction2) action6.free_parameters.restore() return action_list
def create_intermediate_varaction2(feature, varact2parser, mapping, default, pos): """ Create a varaction2 based on a parsed expression and a value mapping @param feature: Feature of the varaction2 @type feature: C{int} @param varact2parser: Parser containing a parsed expression @type varact2parser: L{Varaction2Parser} @param mapping: Mapping of various values to sprite groups / return values, with a possible extra function to apply to the return value @type mapping: C{dict} that maps C{int} to C{tuple} of (L{SpriteGroupRef}, C{function}, or C{None}) @param default: Default sprite group if no value matches @type default: L{SpriteGroupRef} @param pos: Positional context. @type pos: L{Position} @return: A tuple containing the action list and a reference to the created action2 @rtype: C{tuple} of (C{list} of L{BaseAction}, L{SpriteGroupRef}) """ global action2_id action_list = varact2parser.extra_actions act6 = action6.Action6() for mod in varact2parser.mods: act6.modify_bytes(mod.param, mod.size, mod.offset + 4) name = expression.Identifier("@action3_{:d}".format(action2_id)) action2_id += 1 varaction2 = action2var.Action2Var(feature, name.value, pos, 0x89) varaction2.var_list = varact2parser.var_list offset = 5 + varact2parser.var_list_size for proc in varact2parser.proc_call_list: action2.add_ref(proc, varaction2, True) for switch_value in sorted(mapping): return_value, ret_value_function = mapping[switch_value] if ret_value_function is None: result, comment = action2var.parse_result(return_value, action_list, act6, offset, varaction2, None, 0x89) else: if isinstance(return_value, expression.SpriteGroupRef): # We need to execute the callback via a procedure call # then return CB_FAILED if the CB failed, # or the CB result (with ret_value_function applied) if successful if return_value.name.value == "CB_FAILED": result, comment = action2var.parse_result( return_value, action_list, act6, offset, varaction2, None, 0x89) else: extra_actions, result, comment = create_proc_call_varaction2( feature, return_value, ret_value_function, varaction2, pos) action_list.extend(extra_actions) else: return_value = ret_value_function(return_value).reduce() result, comment = action2var.parse_result( return_value, action_list, act6, offset, varaction2, None, 0x89) varaction2.ranges.append( action2var.VarAction2Range( expression.ConstantNumeric(switch_value), expression.ConstantNumeric(switch_value), result, comment)) offset += 10 result, comment = action2var.parse_result(default, action_list, act6, offset, varaction2, None, 0x89) varaction2.default_result = result varaction2.default_comment = comment return_ref = expression.SpriteGroupRef(name, [], None, varaction2) if len(act6.modifications) > 0: action_list.append(act6) action_list.append(varaction2) return (action_list, return_ref)