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game_map.cpp
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/*
* This file is part of EasyRPG Player.
*
* EasyRPG Player is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* EasyRPG Player is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with EasyRPG Player. If not, see <http://www.gnu.org/licenses/>.
*/
// Headers
#include <cassert>
#include <initializer_list>
#include <iomanip>
#include <sstream>
#include <algorithm>
#include <climits>
#include <numeric>
#include <unordered_set>
#include "async_handler.h"
#include "options.h"
#include "system.h"
#include "game_battle.h"
#include "game_battler.h"
#include "game_map.h"
#include "game_interpreter_map.h"
#include "game_switches.h"
#include "game_player.h"
#include "game_party.h"
#include "game_message.h"
#include "game_screen.h"
#include "game_pictures.h"
#include "scene_battle.h"
#include "scene_map.h"
#include <lcf/lmu/reader.h>
#include <lcf/reader_lcf.h>
#include "map_data.h"
#include "main_data.h"
#include "output.h"
#include "util_macro.h"
#include "game_system.h"
#include "filefinder.h"
#include "player.h"
#include "input.h"
#include "utils.h"
#include "rand.h"
#include <lcf/scope_guard.h>
#include <lcf/rpg/save.h>
#include "scene_gameover.h"
#include "feature.h"
namespace {
// Intended bad value, Game_Map::Init sets them correctly
int screen_width = -1;
int screen_height = -1;
lcf::rpg::SaveMapInfo map_info;
lcf::rpg::SavePanorama panorama;
bool need_refresh;
int animation_type;
bool animation_fast;
std::vector<unsigned char> passages_down;
std::vector<unsigned char> passages_up;
std::vector<Game_Event> events;
std::vector<Game_CommonEvent> common_events;
std::unique_ptr<Game_Map::Caching::MapCache> map_cache;
std::unique_ptr<lcf::rpg::Map> map;
std::unique_ptr<Game_Interpreter_Map> interpreter;
std::vector<Game_Vehicle> vehicles;
lcf::rpg::Chipset* chipset;
//FIXME: Find a better way to do this.
bool panorama_on_map_init = true;
bool reset_panorama_x_on_next_init = true;
bool reset_panorama_y_on_next_init = true;
bool translation_changed = false;
// Used when the current map is not in the maptree
const lcf::rpg::MapInfo empty_map_info;
}
namespace Game_Map {
void SetupCommon();
}
void Game_Map::OnContinueFromBattle() {
Main_Data::game_system->BgmPlay(Main_Data::game_system->GetBeforeBattleMusic());
}
static Game_Map::Parallax::Params GetParallaxParams();
void Game_Map::Init() {
Dispose();
map_info = {};
panorama = {};
SetNeedRefresh(true);
interpreter.reset(new Game_Interpreter_Map(true));
map_cache.reset(new Caching::MapCache());
InitCommonEvents();
vehicles.clear();
vehicles.emplace_back(Game_Vehicle::Boat);
vehicles.emplace_back(Game_Vehicle::Ship);
vehicles.emplace_back(Game_Vehicle::Airship);
}
void Game_Map::InitCommonEvents() {
common_events.clear();
common_events.reserve(lcf::Data::commonevents.size());
for (const lcf::rpg::CommonEvent& ev : lcf::Data::commonevents) {
common_events.emplace_back(ev.ID);
}
translation_changed = false;
}
void Game_Map::Dispose() {
events.clear();
map.reset();
map_info = {};
panorama = {};
}
void Game_Map::Quit() {
Dispose();
common_events.clear();
interpreter.reset();
map_cache.reset();
}
int Game_Map::GetMapSaveCount() {
return (Player::IsRPG2k3() && map->save_count_2k3e > 0)
? map->save_count_2k3e
: map->save_count;
}
void Game_Map::Setup(std::unique_ptr<lcf::rpg::Map> map_in) {
Dispose();
screen_width = (Player::screen_width / 16.0) * SCREEN_TILE_SIZE;
screen_height = (Player::screen_height / 16.0) * SCREEN_TILE_SIZE;
map = std::move(map_in);
SetupCommon();
panorama_on_map_init = true;
Parallax::ClearChangedBG();
SetEncounterSteps(GetMapInfo().encounter_steps);
SetChipset(map->chipset_id);
std::iota(map_info.lower_tiles.begin(), map_info.lower_tiles.end(), 0);
std::iota(map_info.upper_tiles.begin(), map_info.upper_tiles.end(), 0);
// Save allowed
const auto* current_info = &GetMapInfo();
int current_index = current_info->ID;
int can_save = current_info->save;
int can_escape = current_info->escape;
int can_teleport = current_info->teleport;
while (can_save == lcf::rpg::MapInfo::TriState_parent
|| can_escape == lcf::rpg::MapInfo::TriState_parent
|| can_teleport == lcf::rpg::MapInfo::TriState_parent)
{
const auto* parent_info = &GetParentMapInfo(*current_info);
int parent_index = parent_info->ID;
if (parent_index == 0) {
// If parent is 0 and flag is parent, it's implicitly enabled.
break;
}
if (parent_index == current_index) {
Output::Warning("Map {} has parent pointing to itself!", current_index);
break;
}
current_info = parent_info;
if (can_save == lcf::rpg::MapInfo::TriState_parent) {
can_save = current_info->save;
}
if (can_escape == lcf::rpg::MapInfo::TriState_parent) {
can_escape = current_info->escape;
}
if (can_teleport == lcf::rpg::MapInfo::TriState_parent) {
can_teleport = current_info->teleport;
}
}
Main_Data::game_system->SetAllowSave(can_save != lcf::rpg::MapInfo::TriState_forbid);
Main_Data::game_system->SetAllowEscape(can_escape != lcf::rpg::MapInfo::TriState_forbid);
Main_Data::game_system->SetAllowTeleport(can_teleport != lcf::rpg::MapInfo::TriState_forbid);
auto& player = *Main_Data::game_player;
SetPositionX(player.GetX() * SCREEN_TILE_SIZE - player.GetPanX());
SetPositionY(player.GetY() * SCREEN_TILE_SIZE - player.GetPanY());
// Update the save counts so that if the player saves the game
// events will properly resume upon loading.
Main_Data::game_player->UpdateSaveCounts(lcf::Data::system.save_count, GetMapSaveCount());
}
void Game_Map::SetupFromSave(
std::unique_ptr<lcf::rpg::Map> map_in,
lcf::rpg::SaveMapInfo save_map,
lcf::rpg::SaveVehicleLocation save_boat,
lcf::rpg::SaveVehicleLocation save_ship,
lcf::rpg::SaveVehicleLocation save_airship,
lcf::rpg::SaveEventExecState save_fg_exec,
lcf::rpg::SavePanorama save_pan,
std::vector<lcf::rpg::SaveCommonEvent> save_ce) {
map = std::move(map_in);
map_info = std::move(save_map);
panorama = std::move(save_pan);
SetupCommon();
const bool is_db_save_compat = Main_Data::game_player->IsDatabaseCompatibleWithSave(lcf::Data::system.save_count);
const bool is_map_save_compat = Main_Data::game_player->IsMapCompatibleWithSave(GetMapSaveCount());
InitCommonEvents();
if (is_db_save_compat && is_map_save_compat) {
for (size_t i = 0; i < std::min(save_ce.size(), common_events.size()); ++i) {
common_events[i].SetSaveData(save_ce[i].parallel_event_execstate);
}
}
if (is_map_save_compat) {
for (size_t i = 0; i < std::min(map->events.size(), map_info.events.size()); ++i) {
auto& ev = events[i];
ev.SetSaveData(map_info.events[i]);
}
}
map_info.events.clear();
interpreter->Clear();
GetVehicle(Game_Vehicle::Boat)->SetSaveData(std::move(save_boat));
GetVehicle(Game_Vehicle::Ship)->SetSaveData(std::move(save_ship));
GetVehicle(Game_Vehicle::Airship)->SetSaveData(std::move(save_airship));
if (is_map_save_compat) {
// Make main interpreter "busy" if save contained events to prevent auto-events from starting
interpreter->SetState(std::move(save_fg_exec));
}
SetEncounterSteps(map_info.encounter_steps);
// RPG_RT bug: Chipset is not loaded. Fixed in 2k3E
if (Player::IsRPG2k3E()) {
SetChipset(map_info.chipset_id);
} else {
SetChipset(0);
}
if (!is_map_save_compat) {
panorama = {};
}
// We want to support loading rm2k3e panning chunks
// but also not break other saves which don't have them.
// To solve this problem, we reuse the scrolling methods
// which always reset the position anyways when scroll_horz/vert
// is false.
// This produces compatible behavior for old RPG_RT saves, namely
// the pan_x/y is always forced to 0.
// If the later async code will load panorama, set the flag to not clear the offsets.
// FIXME: RPG_RT compatibility bug: Everytime we load a savegame with default panorama chunks,
// this causes them to get overwritten
// FIXME: RPG_RT compatibility bug: On async platforms, panorama async loading can
// cause panorama chunks to be out of sync.
Game_Map::Parallax::ChangeBG(GetParallaxParams());
}
std::unique_ptr<lcf::rpg::Map> Game_Map::LoadMapFile(int map_id) {
std::unique_ptr<lcf::rpg::Map> map;
// Try loading EasyRPG map files first, then fallback to normal RPG Maker
// FIXME: Assert map was cached for async platforms
std::string map_name = Game_Map::ConstructMapName(map_id, true);
std::string map_file = FileFinder::Game().FindFile(map_name);
if (map_file.empty()) {
map_name = Game_Map::ConstructMapName(map_id, false);
map_file = FileFinder::Game().FindFile(map_name);
if (map_file.empty()) {
Output::Error("Loading of Map {} failed.\nThe map was not found.", map_name);
return nullptr;
}
auto map_stream = FileFinder::Game().OpenInputStream(map_file);
if (!map_stream) {
Output::Error("Loading of Map {} failed.\nMap not readable.", map_name);
return nullptr;
}
map = lcf::LMU_Reader::Load(map_stream, Player::encoding);
if (Input::IsRecording()) {
map_stream.clear();
map_stream.seekg(0);
Input::AddRecordingData(Input::RecordingData::Hash,
fmt::format("map{:04} {:#08x}", map_id, Utils::CRC32(map_stream)));
}
} else {
auto map_stream = FileFinder::Game().OpenInputStream(map_file);
if (!map_stream) {
Output::Error("Loading of Map {} failed.\nMap not readable.", map_name);
return nullptr;
}
map = lcf::LMU_Reader::LoadXml(map_stream);
}
Output::Debug("Loaded Map {}", map_name);
if (map.get() == NULL) {
Output::ErrorStr(lcf::LcfReader::GetError());
}
return map;
}
void Game_Map::SetupCommon() {
if (!Tr::GetCurrentTranslationId().empty()) {
TranslateMapMessages(GetMapId(), *map);
}
SetNeedRefresh(true);
PrintPathToMap();
if (translation_changed) {
InitCommonEvents();
}
map_cache->Clear();
CreateMapEvents();
}
void Game_Map::CreateMapEvents() {
events.reserve(map->events.size());
for (auto& ev : map->events) {
events.emplace_back(GetMapId(), &ev);
AddEventToCache(ev);
}
}
void Game_Map::AddEventToCache(const lcf::rpg::Event& ev) {
using Op = Caching::ObservedVarOps;
for (const auto& pg : ev.pages) {
if (pg.condition.flags.switch_a) {
map_cache->AddEventAsRefreshTarget<Op::SwitchSet>(pg.condition.switch_a_id, ev);
}
if (pg.condition.flags.switch_b) {
map_cache->AddEventAsRefreshTarget<Op::SwitchSet>(pg.condition.switch_b_id, ev);
}
if (pg.condition.flags.variable) {
map_cache->AddEventAsRefreshTarget<Op::VarSet>(pg.condition.variable_id, ev);
}
}
}
void Game_Map::RemoveEventFromCache(const lcf::rpg::Event& ev) {
using Op = Caching::ObservedVarOps;
for (const auto& pg : ev.pages) {
if (pg.condition.flags.switch_a) {
map_cache->RemoveEventAsRefreshTarget<Op::SwitchSet>(pg.condition.switch_a_id, ev);
}
if (pg.condition.flags.switch_b) {
map_cache->RemoveEventAsRefreshTarget<Op::SwitchSet>(pg.condition.switch_b_id, ev);
}
if (pg.condition.flags.variable) {
map_cache->RemoveEventAsRefreshTarget<Op::VarSet>(pg.condition.variable_id, ev);
}
}
}
void Game_Map::Caching::MapCache::Clear() {
for (int i = 0; i < static_cast<int>(ObservedVarOps_END); i++) {
refresh_targets_by_varid[i].clear();
}
}
bool Game_Map::CloneMapEvent(int src_map_id, int src_event_id, int target_x, int target_y, int target_event_id, StringView target_name) {
std::unique_ptr<lcf::rpg::Map> source_map_storage;
const lcf::rpg::Map* source_map;
if (src_map_id == GetMapId()) {
source_map = &GetMap();
} else {
source_map_storage = Game_Map::LoadMapFile(src_map_id);
source_map = source_map_storage.get();
if (source_map_storage == nullptr) {
Output::Warning("CloneMapEvent: Invalid source map ID {}", src_map_id);
return false;
}
if (!Tr::GetCurrentTranslationId().empty()) {
TranslateMapMessages(src_map_id, *source_map_storage);
}
}
const lcf::rpg::Event* source_event = FindEventById(source_map->events, src_event_id);
if (source_event == nullptr) {
Output::Warning("CloneMapEvent: Event ID {} not found on source map {}", src_event_id, src_map_id);
return false;
}
lcf::rpg::Event new_event = *source_event;
if (target_event_id > 0) {
DestroyMapEvent(target_event_id, true);
new_event.ID = target_event_id;
} else {
new_event.ID = GetNextAvailableEventId();
}
new_event.x = target_x;
new_event.y = target_y;
if (!target_name.empty()) {
new_event.name = lcf::DBString(target_name);
}
// sorted insert
auto insert_it = map->events.insert(
std::upper_bound(map->events.begin(), map->events.end(), new_event, [](const auto& e, const auto& e2) {
return e.ID < e2.ID;
}), new_event);
auto game_event = Game_Event(GetMapId(), &*insert_it);
events.insert(
std::upper_bound(events.begin(), events.end(), game_event, [](const auto& e, const auto& e2) {
return e.GetId() < e2.GetId();
}), Game_Event(GetMapId(), &*insert_it));
UpdateUnderlyingEventReferences();
AddEventToCache(new_event);
Scene_Map* scene = (Scene_Map*)Scene::Find(Scene::Map).get();
scene->spriteset->Refresh();
SetNeedRefresh(true);
return true;
}
bool Game_Map::DestroyMapEvent(const int event_id, bool from_clone) {
const lcf::rpg::Event* event = FindEventById(map->events, event_id);
if (event == nullptr) {
if (!from_clone) {
Output::Warning("DestroyMapEvent: Event ID {} not found on current map", event_id);
}
return true;
}
// Remove event from cache
RemoveEventFromCache(*event);
// Remove event from events vector
for (auto it = events.begin(); it != events.end(); ++it) {
if (it->GetId() == event_id) {
events.erase(it);
break;
}
}
// Remove event from map
for (auto it = map->events.begin(); it != map->events.end(); ++it) {
if (it->ID == event_id) {
map->events.erase(it);
break;
}
}
if (!from_clone) {
UpdateUnderlyingEventReferences();
Scene_Map* scene = (Scene_Map*)Scene::Find(Scene::Map).get();
scene->spriteset->Refresh();
SetNeedRefresh(true);
}
if (GetInterpreter().GetOriginalEventId() == event_id) {
// Prevent triggering "invalid event on stack" sanity check
GetInterpreter().ClearOriginalEventId();
}
return true;
}
void Game_Map::TranslateMapMessages(int mapId, lcf::rpg::Map& map) {
std::stringstream ss;
ss << "map" << std::setfill('0') << std::setw(4) << mapId << ".po";
Player::translation.RewriteMapMessages(ss.str(), map);
}
void Game_Map::UpdateUnderlyingEventReferences() {
// Update references because modifying the vector can reallocate
size_t idx = 0;
for (auto& ev : events) {
ev.SetUnderlyingEvent(&map->events.at(idx++));
}
Main_Data::game_screen->UpdateUnderlyingEventReferences();
}
const lcf::rpg::Event* Game_Map::FindEventById(const std::vector<lcf::rpg::Event>& events, int eventId) {
for (const auto& ev : events) {
if (ev.ID == eventId) {
return &ev;
}
}
return nullptr;
}
int Game_Map::GetNextAvailableEventId() {
return map->events.back().ID + 1;
}
void Game_Map::PrepareSave(lcf::rpg::Save& save) {
save.foreground_event_execstate = interpreter->GetSaveState();
save.airship_location = GetVehicle(Game_Vehicle::Airship)->GetSaveData();
save.ship_location = GetVehicle(Game_Vehicle::Ship)->GetSaveData();
save.boat_location = GetVehicle(Game_Vehicle::Boat)->GetSaveData();
save.map_info = map_info;
save.map_info.chipset_id = GetChipset();
if (save.map_info.chipset_id == GetOriginalChipset()) {
// This emulates RPG_RT behavior, where chipset id == 0 means use the default map chipset.
save.map_info.chipset_id = 0;
}
if (save.map_info.encounter_steps == GetOriginalEncounterSteps()) {
save.map_info.encounter_steps = -1;
}
// Note: RPG_RT does not use a sentinel for parallax parameters. Once the parallax BG is changed, it stays that way forever.
save.map_info.events.clear();
save.map_info.events.reserve(events.size());
for (Game_Event& ev : events) {
save.map_info.events.push_back(ev.GetSaveData());
}
save.panorama = panorama;
save.common_events.clear();
save.common_events.reserve(common_events.size());
for (Game_CommonEvent& ev : common_events) {
save.common_events.push_back(lcf::rpg::SaveCommonEvent());
save.common_events.back().ID = ev.GetIndex();
save.common_events.back().parallel_event_execstate = ev.GetSaveData();
}
}
void Game_Map::PlayBgm() {
const auto* current_info = &GetMapInfo();
while (current_info->music_type == 0 && GetParentMapInfo(*current_info).ID != current_info->ID) {
current_info = &GetParentMapInfo(*current_info);
}
if ((current_info->ID > 0) && !current_info->music.name.empty()) {
if (current_info->music_type == 1) {
return;
}
auto& music = current_info->music;
if (!Main_Data::game_player->IsAboard()) {
Main_Data::game_system->BgmPlay(music);
} else {
Main_Data::game_system->SetBeforeVehicleMusic(music);
}
}
}
std::vector<uint8_t> Game_Map::GetTilesLayer(int layer) {
return layer >= 1 ? map_info.upper_tiles : map_info.lower_tiles;
}
void Game_Map::Refresh() {
if (GetMapId() > 0) {
for (Game_Event& ev : events) {
ev.RefreshPage();
}
}
need_refresh = false;
}
Game_Interpreter_Map& Game_Map::GetInterpreter() {
assert(interpreter);
return *interpreter;
}
void Game_Map::Scroll(int dx, int dy) {
int x = map_info.position_x;
AddScreenX(x, dx);
map_info.position_x = x;
int y = map_info.position_y;
AddScreenY(y, dy);
map_info.position_y = y;
if (dx == 0 && dy == 0) {
return;
}
Main_Data::game_screen->OnMapScrolled(dx, dy);
Main_Data::game_pictures->OnMapScrolled(dx, dy);
Game_Map::Parallax::ScrollRight(dx);
Game_Map::Parallax::ScrollDown(dy);
}
// Add inc to acc, clamping the result into the range [low, high].
// If the result is clamped, inc is also modified to be actual amount
// that acc changed by.
static void ClampingAdd(int low, int high, int& acc, int& inc) {
int original_acc = acc;
acc = std::clamp(acc + inc, low, high);
inc = acc - original_acc;
}
void Game_Map::AddScreenX(int& screen_x, int& inc) {
int map_width = GetTilesX() * SCREEN_TILE_SIZE;
if (LoopHorizontal()) {
screen_x = (screen_x + inc) % map_width;
} else {
ClampingAdd(0, map_width - screen_width, screen_x, inc);
}
}
void Game_Map::AddScreenY(int& screen_y, int& inc) {
int map_height = GetTilesY() * SCREEN_TILE_SIZE;
if (LoopVertical()) {
screen_y = (screen_y + inc) % map_height;
} else {
ClampingAdd(0, map_height - screen_height, screen_y, inc);
}
}
bool Game_Map::IsValid(int x, int y) {
return (x >= 0 && x < GetTilesX() && y >= 0 && y < GetTilesY());
}
static int GetPassableMask(int old_x, int old_y, int new_x, int new_y) {
int bit = 0;
if (new_x > old_x) { bit |= Passable::Right; }
if (new_x < old_x) { bit |= Passable::Left; }
if (new_y > old_y) { bit |= Passable::Down; }
if (new_y < old_y) { bit |= Passable::Up; }
return bit;
}
static bool WouldCollide(const Game_Character& self, const Game_Character& other, bool self_conflict) {
if (self.GetThrough() || other.GetThrough()) {
return false;
}
if (self.IsFlying() || other.IsFlying()) {
return false;
}
if (!self.IsActive() || !other.IsActive()) {
return false;
}
if (self.GetType() == Game_Character::Event
&& other.GetType() == Game_Character::Event
&& (self.IsOverlapForbidden() || other.IsOverlapForbidden())) {
return true;
}
if (other.GetLayer() == lcf::rpg::EventPage::Layers_same && self_conflict) {
return true;
}
if (self.GetLayer() == other.GetLayer()) {
return true;
}
return false;
}
template <typename T>
static void MakeWayUpdate(T& other) {
other.Update();
}
static void MakeWayUpdate(Game_Event& other) {
other.Update(false);
}
template <typename T>
static bool CheckWayTestCollideEvent(int x, int y, const Game_Character& self, T& other, bool self_conflict) {
if (&self == &other) {
return false;
}
if (!other.IsInPosition(x, y)) {
return false;
}
return WouldCollide(self, other, self_conflict);
}
template <typename T>
static bool MakeWayCollideEvent(int x, int y, const Game_Character& self, T& other, bool self_conflict) {
if (&self == &other) {
return false;
}
if (!other.IsInPosition(x, y)) {
return false;
}
// Force the other event to update, allowing them to possibly move out of the way.
MakeWayUpdate(other);
if (!other.IsInPosition(x, y)) {
return false;
}
return WouldCollide(self, other, self_conflict);
}
static Game_Vehicle::Type GetCollisionVehicleType(const Game_Character* ch) {
if (ch && ch->GetType() == Game_Character::Vehicle) {
return static_cast<Game_Vehicle::Type>(static_cast<const Game_Vehicle*>(ch)->GetVehicleType());
}
return Game_Vehicle::None;
}
bool Game_Map::CheckWay(const Game_Character& self,
int from_x, int from_y,
int to_x, int to_y
)
{
return CheckOrMakeWayEx(
self, from_x, from_y, to_x, to_y, true, nullptr, false
);
}
bool Game_Map::CheckWay(const Game_Character& self,
int from_x, int from_y,
int to_x, int to_y,
bool check_events_and_vehicles,
std::unordered_set<int> *ignore_some_events_by_id) {
return CheckOrMakeWayEx(
self, from_x, from_y, to_x, to_y,
check_events_and_vehicles,
ignore_some_events_by_id, false
);
}
bool Game_Map::CheckOrMakeWayEx(const Game_Character& self,
int from_x, int from_y,
int to_x, int to_y,
bool check_events_and_vehicles,
std::unordered_set<int> *ignore_some_events_by_id,
bool make_way
)
{
// Infer directions before we do any rounding.
const int bit_from = GetPassableMask(from_x, from_y, to_x, to_y);
const int bit_to = GetPassableMask(to_x, to_y, from_x, from_y);
// Now round for looping maps.
to_x = Game_Map::RoundX(to_x);
to_y = Game_Map::RoundY(to_y);
// Note, even for diagonal, if the tile is invalid we still check vertical/horizontal first!
if (!Game_Map::IsValid(to_x, to_y)) {
return false;
}
if (self.GetThrough()) {
return true;
}
const auto vehicle_type = GetCollisionVehicleType(&self);
bool self_conflict = false;
// Depending on whether we're supposed to call MakeWayCollideEvent
// (which might change the map) or not, choose what to call:
auto CheckOrMakeCollideEvent = [&](auto& other) {
if (make_way) {
return MakeWayCollideEvent(to_x, to_y, self, other, self_conflict);
} else {
return CheckWayTestCollideEvent(
to_x, to_y, self, other, self_conflict
);
}
};
if (!self.IsJumping()) {
// Check for self conflict.
// If this event has a tile graphic and the tile itself has passage blocked in the direction
// we want to move, flag it as "self conflicting" for use later.
if (self.GetLayer() == lcf::rpg::EventPage::Layers_below && self.GetTileId() != 0) {
int tile_id = self.GetTileId();
if ((passages_up[tile_id] & bit_from) == 0) {
self_conflict = true;
}
}
if (vehicle_type == Game_Vehicle::None) {
// Check that we are allowed to step off of the current tile.
// Note: Vehicles can always step off a tile.
// The current coordinate can be invalid due to an out-of-bounds teleport or a "Set Location" event.
// Round it for looping maps to ensure the check passes
// This is not fully bug compatible to RPG_RT. Assuming the Y-Coordinate is out-of-bounds: When moving
// left or right the invalid Y will stay in RPG_RT preventing events from being triggered, but we wrap it
// inbounds after the first move.
from_x = Game_Map::RoundX(from_x);
from_y = Game_Map::RoundY(from_y);
if (!IsPassableTile(&self, bit_from, from_x, from_y)) {
return false;
}
}
}
if (vehicle_type != Game_Vehicle::Airship && check_events_and_vehicles) {
// Check for collision with events on the target tile.
for (auto& other: GetEvents()) {
if (ignore_some_events_by_id != NULL &&
ignore_some_events_by_id->find(other.GetId()) !=
ignore_some_events_by_id->end())
continue;
if (CheckOrMakeCollideEvent(other)) {
return false;
}
}
auto& player = Main_Data::game_player;
if (player->GetVehicleType() == Game_Vehicle::None) {
if (CheckOrMakeCollideEvent(*Main_Data::game_player)) {
return false;
}
}
for (auto vid: { Game_Vehicle::Boat, Game_Vehicle::Ship}) {
auto& other = vehicles[vid - 1];
if (other.IsInCurrentMap()) {
if (CheckOrMakeCollideEvent(other)) {
return false;
}
}
}
auto& airship = vehicles[Game_Vehicle::Airship - 1];
if (airship.IsInCurrentMap() && self.GetType() != Game_Character::Player) {
if (CheckOrMakeCollideEvent(airship)) {
return false;
}
}
}
int bit = bit_to;
if (self.IsJumping()) {
bit = Passable::Down | Passable::Up | Passable::Left | Passable::Right;
}
return IsPassableTile(
&self, bit, to_x, to_y, check_events_and_vehicles, true
);
}
bool Game_Map::MakeWay(const Game_Character& self,
int from_x, int from_y,
int to_x, int to_y
)
{
return CheckOrMakeWayEx(
self, from_x, from_y, to_x, to_y, true, NULL, true
);
}
bool Game_Map::CanLandAirship(int x, int y) {
if (!Game_Map::IsValid(x, y)) return false;
const auto* terrain = lcf::ReaderUtil::GetElement(lcf::Data::terrains, GetTerrainTag(x, y));
if (!terrain) {
Output::Warning("CanLandAirship: Invalid terrain at ({}, {})", x, y);
return false;
}
if (!terrain->airship_land) {
return false;
}
for (auto& ev: events) {
if (ev.IsInPosition(x, y)
&& ev.IsActive()
&& ev.GetActivePage() != nullptr) {
return false;
}
}
for (auto vid: { Game_Vehicle::Boat, Game_Vehicle::Ship }) {
auto& vehicle = vehicles[vid - 1];
if (vehicle.IsInCurrentMap() && vehicle.IsInPosition(x, y)) {
return false;
}
}
const int bit = Passable::Down | Passable::Right | Passable::Left | Passable::Up;
int tile_index = x + y * GetTilesX();
if (!IsPassableLowerTile(bit, tile_index)) {
return false;
}
int tile_id = map->upper_layer[tile_index] - BLOCK_F;
tile_id = map_info.upper_tiles[tile_id];
return (passages_up[tile_id] & bit) != 0;
}
bool Game_Map::CanEmbarkShip(Game_Player& player, int x, int y) {
auto bit = GetPassableMask(player.GetX(), player.GetY(), x, y);
return IsPassableTile(&player, bit, player.GetX(), player.GetY());
}
bool Game_Map::CanDisembarkShip(Game_Player& player, int x, int y) {
if (!Game_Map::IsValid(x, y)) {
return false;
}
for (auto& ev: GetEvents()) {
if (ev.IsInPosition(x, y)
&& ev.GetLayer() == lcf::rpg::EventPage::Layers_same
&& ev.IsActive()
&& ev.GetActivePage() != nullptr) {
return false;
}
}
int bit = GetPassableMask(x, y, player.GetX(), player.GetY());
return IsPassableTile(nullptr, bit, x, y);
}
bool Game_Map::IsPassableLowerTile(int bit, int tile_index) {
int tile_raw_id = map->lower_layer[tile_index];
int tile_id = 0;
if (tile_raw_id >= BLOCK_E) {
tile_id = tile_raw_id - BLOCK_E;
tile_id = map_info.lower_tiles[tile_id] + BLOCK_E_INDEX;
} else if (tile_raw_id >= BLOCK_D) {
tile_id = (tile_raw_id - BLOCK_D) / BLOCK_D_STRIDE + BLOCK_D_INDEX;
int autotile_id = (tile_raw_id - BLOCK_D) % BLOCK_D_STRIDE;
if (((passages_down[tile_id] & Passable::Wall) != 0) && (
(autotile_id >= 20 && autotile_id <= 23) ||
(autotile_id >= 33 && autotile_id <= 37) ||
autotile_id == 42 || autotile_id == 43 ||
autotile_id == 45 || autotile_id == 46))
return true;
} else if (tile_raw_id >= BLOCK_C) {
tile_id = (tile_raw_id - BLOCK_C) / BLOCK_C_STRIDE + BLOCK_C_INDEX;
} else if (map->lower_layer[tile_index] < BLOCK_C) {
tile_id = tile_raw_id / BLOCK_B_STRIDE;
}
return (passages_down[tile_id] & bit) != 0;
}
bool Game_Map::IsPassableTile(
const Game_Character* self, int bit, int x, int y
) {
return IsPassableTile(
self, bit, x, y, true, true
);
}
bool Game_Map::IsPassableTile(
const Game_Character* self, int bit, int x, int y,
bool check_events_and_vehicles, bool check_map_geometry
) {
if (!IsValid(x, y)) return false;
const auto vehicle_type = GetCollisionVehicleType(self);