Files
fs2open.github.com/code/scripting/lua.cpp
T
asarium 544029f66f Add capability to have a pure lua script
This adds the capability to have a Lua script that does not need to use
our table syntax at all but instead defines the hooks by calling API
functions. This also makes it possible to add hook functions at runtime
if the script requires that.

Also clean up some unused debug stuff.
2020-05-03 14:33:42 +02:00

334 lines
9.5 KiB
C++

#include "scripting/scripting.h"
/**
* IMPORTANT!
*
* For various compiler reasons, all scripting API classes and libraries need to be referenced here! The easiest way to
* do this is to declare the API elements in the header with the DECLARE_* macros and then include them here
*/
#include "scripting/api/objs/asteroid.h"
#include "scripting/api/objs/background_element.h"
#include "scripting/api/objs/beam.h"
#include "scripting/api/objs/camera.h"
#include "scripting/api/objs/cockpit_display.h"
#include "scripting/api/objs/control_info.h"
#include "scripting/api/objs/controls.h"
#include "scripting/api/objs/debris.h"
#include "scripting/api/objs/enums.h"
#include "scripting/api/objs/event.h"
#include "scripting/api/objs/eye.h"
#include "scripting/api/objs/file.h"
#include "scripting/api/objs/font.h"
#include "scripting/api/objs/gameevent.h"
#include "scripting/api/objs/gamestate.h"
#include "scripting/api/objs/hudgauge.h"
#include "scripting/api/objs/mc_info.h"
#include "scripting/api/objs/message.h"
#include "scripting/api/objs/model.h"
#include "scripting/api/objs/object.h"
#include "scripting/api/objs/option.h"
#include "scripting/api/objs/order.h"
#include "scripting/api/objs/particle.h"
#include "scripting/api/objs/model_path.h"
#include "scripting/api/objs/physics_info.h"
#include "scripting/api/objs/player.h"
#include "scripting/api/objs/sexpvar.h"
#include "scripting/api/objs/shields.h"
#include "scripting/api/objs/ship.h"
#include "scripting/api/objs/ship_bank.h"
#include "scripting/api/objs/shipclass.h"
#include "scripting/api/objs/shiptype.h"
#include "scripting/api/objs/sound.h"
#include "scripting/api/objs/species.h"
#include "scripting/api/objs/streaminganim.h"
#include "scripting/api/objs/subsystem.h"
#include "scripting/api/objs/team.h"
#include "scripting/api/objs/texture.h"
#include "scripting/api/objs/texturemap.h"
#include "scripting/api/objs/time_obj.h"
#include "scripting/api/objs/vecmath.h"
#include "scripting/api/objs/waypoint.h"
#include "scripting/api/objs/weapon.h"
#include "scripting/api/objs/weaponclass.h"
#include "scripting/api/objs/wing.h"
#include "scripting/api/libs/audio.h"
#include "scripting/api/libs/base.h"
#include "scripting/api/libs/bitops.h"
#include "scripting/api/libs/cfile.h"
#include "scripting/api/libs/engine.h"
#include "scripting/api/libs/graphics.h"
#include "scripting/api/libs/hookvars.h"
#include "scripting/api/libs/hud.h"
#include "scripting/api/libs/mission.h"
#include "scripting/api/libs/options.h"
#include "scripting/api/libs/parse.h"
#include "scripting/api/libs/tables.h"
#include "scripting/api/libs/testing.h"
#include "scripting/api/libs/time_lib.h"
#include "scripting/api/libs/ui.h"
#include "scripting/api/libs/utf8.h"
// End of definitions includes
using namespace scripting;
using namespace scripting::api;
// *************************Housekeeping*************************
static void *vm_lua_alloc(void*, void *ptr, size_t, size_t nsize) {
if (nsize == 0)
{
vm_free(ptr);
return NULL;
}
else
{
return vm_realloc(ptr, nsize);
}
}
//Inits LUA
//Note that "libraries" must end with a {NULL, NULL}
//element
int script_state::CreateLuaState()
{
mprintf(("LUA: Opening LUA state...\n"));
lua_State *L = lua_newstate(vm_lua_alloc, nullptr);
if(L == NULL)
{
Warning(LOCATION, "Could not initialize Lua");
return 0;
}
//*****INITIALIZE AUXILIARY LIBRARIES
mprintf(("LUA: Initializing base Lua libraries...\n"));
luaL_openlibs(L);
//*****DISABLE DANGEROUS COMMANDS
lua_pushstring(L, "os");
lua_rawget(L, LUA_GLOBALSINDEX);
int os_ldx = lua_gettop(L);
if(lua_istable(L, os_ldx))
{
lua_pushstring(L, "execute");
lua_pushnil(L);
lua_rawset(L, os_ldx);
lua_pushstring(L, "remove");
lua_pushnil(L);
lua_rawset(L, os_ldx);
lua_pushstring(L, "rename");
lua_pushnil(L);
lua_rawset(L, os_ldx);
}
lua_pop(L, 1); //os table
//*****INITIALIZE ADE
uint i;
mprintf(("LUA: Beginning ADE initialization\n"));
for(i = 0; i < ade_manager::getInstance()->getNumEntries(); i++)
{
//WMC - Do only toplevel table entries, doi
if(ade_manager::getInstance()->getEntry(i).ParentIdx == UINT_MAX) //WMC - oh hey, we're done with the meaty point in < 10 lines.
ade_manager::getInstance()->getEntry(i).SetTable(L, LUA_GLOBALSINDEX, LUA_GLOBALSINDEX); //Oh the miracles of OOP.
}
//*****INITIALIZE ENUMERATION CONSTANTS
mprintf(("ADE: Initializing enumeration constants...\n"));
enum_h eh;
for(i = 0; i < Num_enumerations; i++)
{
eh.index = Enumerations[i].def;
eh.is_constant = true;
ade_set_args(L, "o", l_Enum.Set(eh));
lua_setglobal(L, Enumerations[i].name);
}
//*****ASSIGN LUA SESSION
mprintf(("ADE: Assigning Lua session...\n"));
SetLuaSession(L);
//***** LOAD DEFAULT SCRIPTS
mprintf(("ADE: Loading default scripts...\n"));
load_default_script(L, "cfile_require.lua");
return 1;
}
void script_state::EndLuaFrame()
{
scripting::api::graphics_on_frame();
}
void ade_output_toc(FILE *fp, ade_table_entry *ate)
{
Assert(fp != NULL);
Assert(ate != NULL);
//WMC - sanity checking
if(ate->Name == NULL && ate->ShortName == NULL) {
Warning(LOCATION, "Found ade_table_entry with no name or shortname");
return;
}
fputs("<dd>", fp);
if(ate->Name == NULL)
{
fprintf(fp, "<a href=\"#%s\">%s", ate->ShortName, ate->ShortName);
}
else
{
fprintf(fp, "<a href=\"#%s\">%s", ate->Name, ate->Name);
if(ate->ShortName)
fprintf(fp, " (%s)", ate->ShortName);
}
fputs("</a>", fp);
if(ate->Description)
fprintf(fp, " - %s\n", ate->Description);
fputs("</dd>\n", fp);
}
static bool sort_table_entries(const ade_table_entry* left, const ade_table_entry* right) {
const char* leftCmp = left->Name != nullptr ? left->Name : left->ShortName;
const char* rightCmp = right->Name != nullptr ? right->Name : left->ShortName;
if (leftCmp == nullptr) {
return false;
}
if (rightCmp == nullptr) {
return false;
}
SCP_string leftStr(leftCmp);
std::transform(std::begin(leftStr), std::end(leftStr), std::begin(leftStr),
[](char c) { return (char)::tolower(c); });
SCP_string rightStr(rightCmp);
std::transform(std::begin(rightStr), std::end(rightStr), std::begin(rightStr),
[](char c) { return (char)::tolower(c); });
return leftStr < rightStr;
}
static bool sort_doc_entries(const ade_table_entry* left, const ade_table_entry* right) {
if (left->Instanced == right->Instanced) {
// Same type -> compare as normal
return sort_table_entries(left, right);
}
if (left->Instanced) {
return true;
}
return false;
}
void script_state::OutputLuaDocumentation(ScriptingDocumentation& doc)
{
SCP_vector<ade_table_entry*> table_entries;
//***Everything
for (uint32_t i = 0; i < ade_manager::getInstance()->getNumEntries(); i++) {
auto ate = &ade_manager::getInstance()->getEntry(i);
if (ate->ParentIdx == UINT_MAX)
table_entries.push_back(ate);
}
std::sort(std::begin(table_entries), std::end(table_entries), sort_doc_entries);
for (auto entry : table_entries) {
doc.elements.emplace_back(entry->ToDocumentationElement());
}
//***Enumerations
for (uint32_t i = 0; i < Num_enumerations; i++) {
DocumentationEnum e;
e.name = Enumerations[i].name;
e.value = Enumerations[i].def;
doc.enumerations.push_back(e);
}
}
void script_state::OutputLuaMeta(FILE *fp)
{
fputs("<dl>\n", fp);
//***Version info
fprintf(fp, "<dd>Version: %s</dd>\n", LUA_RELEASE);
SCP_vector<ade_table_entry*> table_entries;
//***TOC: Libraries
fputs("<dt><b>Libraries</b></dt>\n", fp);
for (uint32_t i = 0; i < ade_manager::getInstance()->getNumEntries(); i++) {
auto ate = &ade_manager::getInstance()->getEntry(i);
if (ate->ParentIdx == UINT_MAX && ate->Type == 'o' && ate->Instanced) {
table_entries.push_back(ate);
}
}
std::sort(std::begin(table_entries), std::end(table_entries), sort_table_entries);
for (auto entry : table_entries) {
ade_output_toc(fp, entry);
}
table_entries.clear();
//***TOC: Objects
fputs("<dt><b>Types</b></dt>\n", fp);
for (uint32_t i = 0; i < ade_manager::getInstance()->getNumEntries(); i++) {
auto ate = &ade_manager::getInstance()->getEntry(i);
if (ate->ParentIdx == UINT_MAX && ate->Type == 'o' && !ate->Instanced) {
table_entries.push_back(ate);
}
}
std::sort(std::begin(table_entries), std::end(table_entries), sort_table_entries);
for (auto entry : table_entries) {
ade_output_toc(fp, entry);
}
table_entries.clear();
//***TOC: Enumerations
fputs("<dt><b><a href=\"#Enumerations\">Enumerations</a></b></dt>", fp);
//***End TOC
fputs("</dl><br/><br/>", fp);
//***Everything
fputs("<dl>\n", fp);
for (uint32_t i = 0; i < ade_manager::getInstance()->getNumEntries(); i++) {
auto ate = &ade_manager::getInstance()->getEntry(i);
if(ate->ParentIdx == UINT_MAX)
table_entries.push_back(ate);
}
std::sort(std::begin(table_entries), std::end(table_entries), sort_doc_entries);
for (auto entry : table_entries) {
entry->OutputMeta(fp);
}
table_entries.clear();
//***Enumerations
fprintf(fp, "<dt id=\"Enumerations\"><h2>Enumerations</h2></dt>");
for (uint32_t i = 0; i < Num_enumerations; i++) {
// Cyborg17 -- Omit the deprecated flag
if (!stricmp(Enumerations[i].name,
"VM_EXTERNAL_CAMERA_LOCKED") /* || !stricmp(Enumerations[i], "ADD DEPRECATED ENUM HERE"*/) {
continue;
}
// WMC - This is in case we ever want to add descriptions to enums.
// fprintf(fp, "<dd><dl><dt><b>%s</b></dt><dd>%s</dd></dl></dd>", Enumerations[i].name, Enumerations[i].desc);
// WMC - For now, print to the file without the description.
fprintf(fp, "<dd><b>%s</b></dd>", Enumerations[i].name);
}
fputs("</dl>\n", fp);
//***End LUA
fputs("</dl>\n", fp);
}