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Add m_levelFuncs and SetLevelFunc. These correspond to the table "LevelFuncs", which will hold trigger functions and the OnStart (etc) callbacks. Putting them into a table will make it much easier to discard them when the player goes from one level to another (through loading a save or finishing the current level).
Rework Level and Game tables as they weren't entirely working before. These correspond to m_locals and m_globals, which hold the level-specific and game-spanning data that will go into save files. Make GetVariable and SetVariable take sol::table args. Sol seems to require this in order to use them as metamethods of a table (it doesn't require them for usertypes, but it seems more logical from the API point of view for Level and Game to be tables). Add documentation for the above tables. Move several functions out of the GameScript class in order to simplify its interface, and make them static functions that only live in GameLogicScript.cpp. Remove g_GameScript from GameLogicScript.cpp as it's not used there; let winmain.cpp deal with it instead.
This commit is contained in:
hispidence
parent
b25ba9e71e
commit
354b21d4f4
3 changed files with 276 additions and 187 deletions
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@ -13,7 +13,6 @@
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#include "effect2.h"
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#include "pickup.h"
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#include "newinv2.h"
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#include <iostream>
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#include "InventorySlots.h"
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#include "ObjectIDs.h"
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@ -28,7 +27,125 @@ functions and callbacks for game specific scripts
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*/
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extern GameFlow* g_GameFlow;
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GameScript* g_GameScript;
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static void PlayAudioTrack(std::string const & trackName, bool looped)
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{
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S_CDPlay(trackName, looped);
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}
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static void PlaySoundEffect(int id, GameScriptPosition p, int flags)
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{
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PHD_3DPOS pos;
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pos.xPos = p.x;
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pos.yPos = p.y;
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pos.zPos = p.z;
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pos.xRot = 0;
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pos.yRot = 0;
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pos.zRot = 0;
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SoundEffect(id, &pos, flags);
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}
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static void PlaySoundEffect(int id, int flags)
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{
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SoundEffect(id, NULL, flags);
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}
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static void SetAmbientTrack(std::string const & trackName)
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{
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CurrentAtmosphere = trackName;
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S_CDPlay(CurrentAtmosphere, 1);
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}
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static int FindRoomNumber(GameScriptPosition pos)
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{
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return 0;
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}
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static void AddLightningArc(GameScriptPosition src, GameScriptPosition dest, GameScriptColor color, int lifetime, int amplitude, int beamWidth, int segments, int flags)
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{
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PHD_VECTOR p1;
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p1.x = src.x;
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p1.y = src.y;
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p1.z = src.z;
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PHD_VECTOR p2;
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p2.x = dest.x;
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p2.y = dest.y;
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p2.z = dest.z;
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TriggerLightning(&p1, &p2, amplitude, color.GetR(), color.GetG(), color.GetB(), lifetime, flags, beamWidth, segments);
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}
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static void AddShockwave(GameScriptPosition pos, int innerRadius, int outerRadius, GameScriptColor color, int lifetime, int speed, int angle, int flags)
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{
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PHD_3DPOS p;
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p.xPos = pos.x;
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p.yPos = pos.y;
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p.zPos = pos.z;
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TriggerShockwave(&p, innerRadius, outerRadius, speed, color.GetR(), color.GetG(), color.GetB(), lifetime, FROM_DEGREES(angle), flags);
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}
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static void AddDynamicLight(GameScriptPosition pos, GameScriptColor color, int radius, int lifetime)
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{
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TriggerDynamicLight(pos.x, pos.y, pos.z, radius, color.GetR(), color.GetG(), color.GetB());
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}
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static void AddBlood(GameScriptPosition pos, int num)
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{
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TriggerBlood(pos.x, pos.y, pos.z, -1, num);
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}
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static void AddFireFlame(GameScriptPosition pos, int size)
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{
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AddFire(pos.x, pos.y, pos.z, size, FindRoomNumber(pos), true);
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}
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static void Earthquake(int strength)
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{
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Camera.bounce = -strength;
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}
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// Inventory
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static void InventoryAdd(GAME_OBJECT_ID slot, sol::optional<int> count)
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{
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PickedUpObject(slot, count.value_or(0));
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}
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static void InventoryRemove(GAME_OBJECT_ID slot, sol::optional<int> count)
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{
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RemoveObjectFromInventory(static_cast<GAME_OBJECT_ID>(inventry_objects_list[slot].object_number), count.value_or(0));
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}
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static int InventoryGetCount(GAME_OBJECT_ID slot)
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{
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return GetInventoryCount(slot);
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}
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static void InventorySetCount(GAME_OBJECT_ID slot, int count)
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{
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// add the amount we'd need to add to get to count
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int currAmt = GetInventoryCount(slot);
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InventoryAdd(slot, count - currAmt);
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}
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static void InventoryCombine(int slot1, int slot2)
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{
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}
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static void InventorySeparate(int slot)
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{
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}
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// Misc
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static void PrintString(std::string key, GameScriptPosition pos, GameScriptColor color, int lifetime, int flags)
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{
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}
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GameScript::GameScript(sol::state* lua) : LuaHandler{ lua }, m_itemsMapId{}, m_itemsMapName{}, m_meshesMapName{}
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{
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@ -41,7 +158,7 @@ Set the named track as the ambient track, and start playing it
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@function SetAmbientTrack
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@tparam string name of track (without file extension) to play
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*/
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m_lua->set_function("SetAmbientTrack", &GameScript::SetAmbientTrack);
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m_lua->set_function("SetAmbientTrack", &SetAmbientTrack);
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/***
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Start playing the named track.
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@ -49,7 +166,7 @@ Start playing the named track.
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@tparam string name of track (without file extension) to play
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@tparam bool loop if true, the track will loop; if false, it won't
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*/
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m_lua->set_function("PlayAudioTrack", &GameScript::PlayAudioTrack);
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m_lua->set_function("PlayAudioTrack", &PlayAudioTrack);
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/*** Player inventory management
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@section Inventory
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@ -61,7 +178,7 @@ Add x of a certain item to the inventory.
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@tparam @{InvItem} item the item to be added
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@tparam int count the number of items to add
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*/
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m_lua->set_function("GiveInvItem", &GameScript::InventoryAdd);
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m_lua->set_function("GiveInvItem", &InventoryAdd);
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/***
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Remove x of a certain item from the inventory.
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@ -69,7 +186,7 @@ Remove x of a certain item from the inventory.
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@tparam @{InvItem} item the item to be removed
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@tparam int count the number of items to remove
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*/
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m_lua->set_function("TakeInvItem", &GameScript::InventoryRemove);
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m_lua->set_function("TakeInvItem", &InventoryRemove);
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/***
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Get the amount the player holds of an item.
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@ -77,7 +194,7 @@ Get the amount the player holds of an item.
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@tparam @{InvItem} item the item to check
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@return the amount of the item the player has in the inventory
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*/
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m_lua->set_function("GetInvItemCount", &GameScript::InventoryGetCount);
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m_lua->set_function("GetInvItemCount", &InventoryGetCount);
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/***
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Set the amount of a certain item the player has in the inventory.
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@ -86,7 +203,7 @@ Similar to @{GiveInvItem} but replaces with the new amount instead of adding it.
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@tparam @{InvItem} item the item to be set
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@tparam int count the number of items the player will have
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*/
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m_lua->set_function("SetInvItemCount", &GameScript::InventorySetCount);
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m_lua->set_function("SetInvItemCount", &InventorySetCount);
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/*** Game entity getters.
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All Lua variables created with these functions will be non-owning.
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@ -155,6 +272,41 @@ Get a SinkInfo by its name.
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makeReadOnlyTable("InvItem", kInventorySlots);
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makeReadOnlyTable("ObjID", kObjIDs);
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// LevelFuncs
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std::string LevelFuncsName{ "LevelFuncs" };
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std::string LevelFuncsNameMeta{ LevelFuncsName + "Meta" };
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auto meta = sol::table{ *m_lua, sol::create };
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m_lua->set(LevelFuncsNameMeta, meta);
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meta.set_function("__newindex", &GameScript::SetLevelFunc, this);
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meta.set("__metatable", "\"metatable is protected\"");
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auto tab = m_lua->create_named_table(LevelFuncsName);
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tab[sol::metatable_key] = meta;
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m_lua->set(LevelFuncsNameMeta, sol::nil);
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// Level
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std::string LevelName{ "Level" };
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std::string LevelNameMeta{ LevelName + "Meta" };
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meta = sol::table{ *m_lua, sol::create };
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m_lua->set(LevelNameMeta, meta);
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meta.set_function("__index", &LuaVariables::GetVariable, &m_locals);
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meta.set_function("__newindex", &LuaVariables::SetVariable, &m_locals);
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meta.set("__metatable", "\"metatable is protected\"");
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tab = m_lua->create_named_table(LevelName);
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tab[sol::metatable_key] = meta;
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m_lua->set(LevelNameMeta, sol::nil);
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// Game
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std::string GameName{ "Game" };
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std::string GameNameMeta{ GameName + "Meta" };
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meta = sol::table{ *m_lua, sol::create };
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m_lua->set(GameName, meta);
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meta.set_function("__index", &LuaVariables::GetVariable, &m_globals);
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meta.set_function("__newindex", &LuaVariables::SetVariable, &m_globals);
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meta.set("__metatable", "\"metatable is protected\"");
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tab = m_lua->create_named_table(GameName);
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tab[sol::metatable_key] = meta;
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m_lua->set(GameNameMeta, sol::nil);
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GameScriptItemInfo::Register(m_lua);
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GameScriptItemInfo::SetNameCallbacks(
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[this](std::string const& str, short num) { return AddLuaNameItem(str, num); },
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@ -198,13 +350,6 @@ Get a SinkInfo by its name.
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m_lua->new_enum<GAME_OBJECT_ID>("Object", {
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{"LARA", ID_LARA}
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});
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// todo document this when I get round to looking into it
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m_lua->new_usertype<LuaVariables>("Variable",
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sol::meta_function::index, &LuaVariables::GetVariable,
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sol::meta_function::new_index, &LuaVariables::SetVariable,
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"new", sol::no_constructor
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);
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}
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void GameScript::AddTrigger(LuaFunction* function)
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@ -213,6 +358,26 @@ void GameScript::AddTrigger(LuaFunction* function)
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(*m_lua).script(function->Code);
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}
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bool GameScript::SetLevelFunc(sol::table tab, std::string const& luaName, sol::object value)
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{
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switch (value.get_type())
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{
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case sol::type::lua_nil:
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m_levelFuncs.erase(luaName);
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tab.raw_set(luaName, value);
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break;
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case sol::type::function:
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m_levelFuncs[luaName];
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tab.raw_set(luaName, value);
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break;
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default:
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std::string error{ "Could not assign LevelFuncs." };
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error += luaName + "; it must be a function (or nil).";
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return ScriptAssert(false, error);
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}
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return true;
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}
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bool GameScript::RemoveLuaNameItem(std::string const & luaName)
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{
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return m_itemsMapName.erase(luaName);
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@ -330,26 +495,26 @@ bool GameScript::ExecuteTrigger(short index)
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*/
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}
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void GameScript::JumpToLevel(int levelNum)
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void JumpToLevel(int levelNum)
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{
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if (levelNum >= g_GameFlow->GetNumLevels())
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return;
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LevelComplete = levelNum;
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}
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int GameScript::GetSecretsCount()
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int GetSecretsCount()
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{
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return Savegame.Level.Secrets;
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}
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void GameScript::SetSecretsCount(int secretsNum)
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void SetSecretsCount(int secretsNum)
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{
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if (secretsNum > 255)
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return;
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Savegame.Level.Secrets = secretsNum;
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}
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void GameScript::AddOneSecret()
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void AddOneSecret()
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{
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if (Savegame.Level.Secrets >= 255)
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return;
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@ -460,129 +625,9 @@ std::unique_ptr<GameScriptSoundSourceInfo> GameScript::GetSoundSourceByName(std:
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return GetTByName<GameScriptSoundSourceInfo, SOUND_SOURCE_INFO &>("SoundSourceInfo", name, m_soundSourcesMapName);
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}
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void GameScript::PlayAudioTrack(std::string const & trackName, bool looped)
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{
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S_CDPlay(trackName, looped);
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}
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void GameScript::PlaySoundEffect(int id, GameScriptPosition p, int flags)
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{
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PHD_3DPOS pos;
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pos.xPos = p.x;
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pos.yPos = p.y;
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pos.zPos = p.z;
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pos.xRot = 0;
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pos.yRot = 0;
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pos.zRot = 0;
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SoundEffect(id, &pos, flags);
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}
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void GameScript::PlaySoundEffect(int id, int flags)
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{
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SoundEffect(id, NULL, flags);
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}
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void GameScript::SetAmbientTrack(std::string const & trackName)
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{
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CurrentAtmosphere = trackName;
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S_CDPlay(CurrentAtmosphere, 1);
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}
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void GameScript::AddLightningArc(GameScriptPosition src, GameScriptPosition dest, GameScriptColor color, int lifetime, int amplitude, int beamWidth, int segments, int flags)
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{
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PHD_VECTOR p1;
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p1.x = src.x;
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p1.y = src.y;
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p1.z = src.z;
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PHD_VECTOR p2;
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p2.x = dest.x;
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p2.y = dest.y;
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p2.z = dest.z;
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TriggerLightning(&p1, &p2, amplitude, color.GetR(), color.GetG(), color.GetB(), lifetime, flags, beamWidth, segments);
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}
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void GameScript::AddShockwave(GameScriptPosition pos, int innerRadius, int outerRadius, GameScriptColor color, int lifetime, int speed, int angle, int flags)
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{
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PHD_3DPOS p;
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p.xPos = pos.x;
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p.yPos = pos.y;
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p.zPos = pos.z;
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TriggerShockwave(&p, innerRadius, outerRadius, speed, color.GetR(), color.GetG(), color.GetB(), lifetime, FROM_DEGREES(angle), flags);
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}
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void GameScript::AddDynamicLight(GameScriptPosition pos, GameScriptColor color, int radius, int lifetime)
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{
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TriggerDynamicLight(pos.x, pos.y, pos.z, radius, color.GetR(), color.GetG(), color.GetB());
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}
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void GameScript::AddBlood(GameScriptPosition pos, int num)
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{
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TriggerBlood(pos.x, pos.y, pos.z, -1, num);
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}
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void GameScript::AddFireFlame(GameScriptPosition pos, int size)
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{
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AddFire(pos.x, pos.y, pos.z, size, FindRoomNumber(pos), true);
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}
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void GameScript::Earthquake(int strength)
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{
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Camera.bounce = -strength;
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}
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// Inventory
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void GameScript::InventoryAdd(GAME_OBJECT_ID slot, sol::optional<int> count)
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{
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PickedUpObject(slot, count.value_or(0));
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}
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void GameScript::InventoryRemove(GAME_OBJECT_ID slot, sol::optional<int> count)
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{
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RemoveObjectFromInventory(static_cast<GAME_OBJECT_ID>(inventry_objects_list[slot].object_number), count.value_or(0));
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}
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int GameScript::InventoryGetCount(GAME_OBJECT_ID slot)
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{
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return GetInventoryCount(slot);
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}
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void GameScript::InventorySetCount(GAME_OBJECT_ID slot, int count)
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{
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// add the amount we'd need to add to get to count
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int currAmt = GetInventoryCount(slot);
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InventoryAdd(slot, count - currAmt);
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}
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void GameScript::InventoryCombine(int slot1, int slot2)
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{
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}
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void GameScript::InventorySeparate(int slot)
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{
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}
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// Misc
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void GameScript::PrintString(std::string key, GameScriptPosition pos, GameScriptColor color, int lifetime, int flags)
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{
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}
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int GameScript::FindRoomNumber(GameScriptPosition pos)
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{
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return 0;
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}
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void GameScript::AssignItemsAndLara()
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{
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m_lua->set("Level", m_locals);
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m_lua->set("Game", m_globals);
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m_lua->set("Lara", GameScriptItemInfo(Lara.itemNumber, false)); // do we need GetLara if we have this?
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}
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@ -591,24 +636,24 @@ void GameScript::ResetVariables()
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(*m_lua)["Lara"] = NULL;
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}
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int GameScript::CalculateDistance(GameScriptPosition pos1, GameScriptPosition pos2)
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int CalculateDistance(GameScriptPosition pos1, GameScriptPosition pos2)
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{
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return sqrt(SQUARE(pos1.x - pos2.x) + SQUARE(pos1.y - pos2.y) + SQUARE(pos1.z - pos2.z));
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}
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int GameScript::CalculateHorizontalDistance(GameScriptPosition pos1, GameScriptPosition pos2)
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int CalculateHorizontalDistance(GameScriptPosition pos1, GameScriptPosition pos2)
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{
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return sqrt(SQUARE(pos1.x - pos2.x) + SQUARE(pos1.z - pos2.z));
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}
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sol::object LuaVariables::GetVariable(std::string key)
|
||||
sol::object LuaVariables::GetVariable(sol::table tab, std::string key)
|
||||
{
|
||||
if (variables.find(key) == variables.end())
|
||||
return sol::lua_nil;
|
||||
return variables[key];
|
||||
}
|
||||
|
||||
void LuaVariables::SetVariable(std::string key, sol::object value)
|
||||
void LuaVariables::SetVariable(sol::table tab, std::string key, sol::object value)
|
||||
{
|
||||
switch (value.get_type())
|
||||
{
|
||||
|
|
@ -628,7 +673,7 @@ void LuaVariables::SetVariable(std::string key, sol::object value)
|
|||
|
||||
void GameScript::ExecuteFunction(std::string const & name)
|
||||
{
|
||||
sol::protected_function func = (*m_lua)[name.c_str()];
|
||||
sol::protected_function func = (*m_lua)["LevelFuncs"][name.c_str()];
|
||||
auto r = func();
|
||||
if (!r.valid())
|
||||
{
|
||||
|
|
@ -676,13 +721,83 @@ void GameScript::OnEnd()
|
|||
doCallback(m_onEnd);
|
||||
}
|
||||
|
||||
/*** Special tables
|
||||
|
||||
TombEngine uses the following tables for specific things.
|
||||
|
||||
@section levelandgametables
|
||||
*/
|
||||
|
||||
/*** A table with level-specific data which will be saved and loaded.
|
||||
This is for level-specific information that you want to store in saved games.
|
||||
|
||||
For example, you may have a level with a custom puzzle where Lara has
|
||||
to kill exactly seven enemies to open a door to a secret. You could use
|
||||
the following line each time an enemy is killed:
|
||||
|
||||
Level.enemiesKilled = Level.enemiesKilled + 1
|
||||
|
||||
If the player saves the level after killing three, saves, and then reloads the save
|
||||
some time later, the values `3` will be put back into `Level.enemiesKilled.`
|
||||
|
||||
__This table is emptied when a level is finished.__ If the player needs to be able
|
||||
to return to the level (e.g. like the Karnak level in *The Last Revelation*,
|
||||
you will need to use the @{Game} table, below.
|
||||
@table Level
|
||||
*/
|
||||
|
||||
/*** A table with game data which will be saved and loaded.
|
||||
This is for information not specific to any level, but which concerns your whole
|
||||
levelset or game, that you want to store in saved games.
|
||||
|
||||
For example, you may wish to have a final boss say a specific voice line based on
|
||||
a choice the player made in a previous level. In the level with the choice, you could
|
||||
write:
|
||||
|
||||
Game.playerSnoopedInDraws = true
|
||||
|
||||
And in the script file for the level with the boss, you could write:
|
||||
|
||||
if Game.playerSnoopedInDraws then
|
||||
PlayAudioTrack("how_dare_you.wav")
|
||||
end
|
||||
|
||||
Unlike @{Level}, this table will remain intact for the entirety of the game.
|
||||
@table Game
|
||||
*/
|
||||
|
||||
/*** A table with level-specific functions.
|
||||
|
||||
This serves two purposes: it holds the level callbacks (listed below) as well as
|
||||
any trigger functions you might have specified. For example, if you give a trigger
|
||||
a Lua name of "my_trigger" in Tomb Editor, you will have to implement it as a member
|
||||
of this table:
|
||||
|
||||
LevelFuncs.my_trigger = function()
|
||||
-- implementation goes here
|
||||
end
|
||||
|
||||
The following are the level callbacks. They are optional; if your level has no special
|
||||
behaviour for a particular scenario, you do not need to implement the function. For
|
||||
example, if your level does not need any special initialisation when it is loaded,
|
||||
you can just leave out `LevelFuncs.OnStart`.
|
||||
|
||||
@tfield function OnStart Will be called when a level is loaded
|
||||
@tfield function OnLoad Will be called when a saved game is loaded
|
||||
@tfield function OnControlPhase Will be called once per frame
|
||||
@tfield function OnSave Will be called when the player saves the game
|
||||
@tfield function OnEnd Will be called when leaving a level. This includes finishing it, exiting to the menu, or loading a save in a different level.
|
||||
@table LevelFuncs
|
||||
*/
|
||||
|
||||
void GameScript::InitCallbacks()
|
||||
{
|
||||
auto assignCB = [this](sol::protected_function& func, std::string const & luaFunc) {
|
||||
func = (*m_lua)[luaFunc];
|
||||
std::string err{ "Level's script does not define callback " + luaFunc};
|
||||
std::string fullName = "LevelFuncs." + luaFunc;
|
||||
func = (*m_lua)["LevelFuncs"][luaFunc];
|
||||
std::string err{ "Level's script does not define callback " + fullName};
|
||||
if (!ScriptAssert(func.valid(), err)) {
|
||||
TENLog("Defaulting to no " + luaFunc + " behaviour.", LogLevel::Warning, LogConfig::All);
|
||||
TENLog("Defaulting to no " + fullName + " behaviour.", LogLevel::Warning, LogConfig::All);
|
||||
}
|
||||
};
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue