847 lines
20 KiB
C
847 lines
20 KiB
C
// SONIC ROBO BLAST 2
|
|
//-----------------------------------------------------------------------------
|
|
// Copyright (C) 2012-2014 by John "JTE" Muniz.
|
|
// Copyright (C) 2012-2014 by Sonic Team Junior.
|
|
//
|
|
// This program is free software distributed under the
|
|
// terms of the GNU General Public License, version 2.
|
|
// See the 'LICENSE' file for more details.
|
|
//-----------------------------------------------------------------------------
|
|
/// \file lua_hooklib.c
|
|
/// \brief hooks for Lua scripting
|
|
|
|
#include "doomdef.h"
|
|
#ifdef HAVE_BLUA
|
|
#include "doomstat.h"
|
|
#include "p_mobj.h"
|
|
#include "r_things.h"
|
|
#include "b_bot.h"
|
|
#include "z_zone.h"
|
|
|
|
#include "lua_script.h"
|
|
#include "lua_libs.h"
|
|
#include "lua_hook.h"
|
|
#include "lua_hud.h" // hud_running errors
|
|
|
|
const char *const hookNames[hook_MAX+1] = {
|
|
"NetVars",
|
|
"MapChange",
|
|
"MapLoad",
|
|
"PlayerJoin",
|
|
"ThinkFrame",
|
|
"MobjSpawn",
|
|
"MobjCollide",
|
|
"MobjMoveCollide",
|
|
"TouchSpecial",
|
|
"MobjFuse",
|
|
"MobjThinker",
|
|
"BossThinker",
|
|
"ShouldDamage",
|
|
"MobjDamage",
|
|
"MobjDeath",
|
|
"BossDeath",
|
|
"MobjRemoved",
|
|
"BotTiccmd",
|
|
"BotAI",
|
|
"LinedefExecute",
|
|
NULL
|
|
};
|
|
|
|
// Takes hook, function, and additional arguments (mobj type to act on, etc.)
|
|
static int lib_addHook(lua_State *L)
|
|
{
|
|
UINT16 hook;
|
|
boolean notable = false;
|
|
boolean subtable = false;
|
|
UINT32 subindex = 0;
|
|
char *subfield = NULL;
|
|
const char *lsubfield = NULL;
|
|
|
|
hook = (UINT16)luaL_checkoption(L, 1, NULL, hookNames);
|
|
luaL_checktype(L, 2, LUA_TFUNCTION);
|
|
|
|
if (hud_running)
|
|
return luaL_error(L, "HUD rendering code should not call this function!");
|
|
|
|
switch(hook)
|
|
{
|
|
// Take a mobjtype enum which this hook is specifically for.
|
|
case hook_MobjSpawn:
|
|
case hook_MobjCollide:
|
|
case hook_MobjMoveCollide:
|
|
case hook_TouchSpecial:
|
|
case hook_MobjFuse:
|
|
case hook_MobjThinker:
|
|
case hook_BossThinker:
|
|
case hook_ShouldDamage:
|
|
case hook_MobjDamage:
|
|
case hook_MobjDeath:
|
|
case hook_BossDeath:
|
|
case hook_MobjRemoved:
|
|
subtable = true;
|
|
if (lua_isnumber(L, 3))
|
|
subindex = (UINT32)luaL_checkinteger(L, 3);
|
|
else
|
|
lsubfield = "a";
|
|
lua_settop(L, 2);
|
|
break;
|
|
case hook_BotAI: // Only one AI function per skin, please!
|
|
notable = true;
|
|
subtable = true;
|
|
subfield = ZZ_Alloc(strlen(luaL_checkstring(L, 3))+1);
|
|
{ // lowercase copy
|
|
char *p = subfield;
|
|
const char *s = luaL_checkstring(L, 3);
|
|
do {
|
|
*p = tolower(*s);
|
|
++p;
|
|
} while(*(++s));
|
|
*p = 0;
|
|
}
|
|
lua_settop(L, 3);
|
|
break;
|
|
case hook_LinedefExecute: // Get one linedef executor function by name
|
|
notable = true;
|
|
subtable = true;
|
|
subfield = ZZ_Alloc(strlen(luaL_checkstring(L, 3))+1);
|
|
{ // uppercase copy
|
|
char *p = subfield;
|
|
const char *s = luaL_checkstring(L, 3);
|
|
do {
|
|
*p = toupper(*s);
|
|
++p;
|
|
} while(*(++s));
|
|
*p = 0;
|
|
}
|
|
lua_settop(L, 3);
|
|
break;
|
|
default:
|
|
lua_settop(L, 2);
|
|
break;
|
|
}
|
|
|
|
lua_getfield(L, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(L, -1));
|
|
|
|
// This hook type only allows one entry, not an array of hooks.
|
|
// New hooks will overwrite the previous ones, and the stack is one table shorter.
|
|
if (notable)
|
|
{
|
|
if (subtable)
|
|
{
|
|
lua_rawgeti(L, -1, hook);
|
|
lua_remove(L, -2); // pop "hook"
|
|
I_Assert(lua_istable(L, -1));
|
|
lua_pushvalue(L, 2);
|
|
if (subfield)
|
|
lua_setfield(L, -2, subfield);
|
|
else if (lsubfield)
|
|
lua_setfield(L, -2, lsubfield);
|
|
else
|
|
lua_rawseti(L, -2, subindex);
|
|
} else {
|
|
lua_pushvalue(L, 2);
|
|
lua_rawseti(L, -2, hook);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// Fetch the hook's table from the registry.
|
|
// It should always exist, since LUA_HookLib creates a table for every hook.
|
|
lua_rawgeti(L, -1, hook);
|
|
lua_remove(L, -2); // pop "hook"
|
|
I_Assert(lua_istable(L, -1));
|
|
if (subtable)
|
|
{
|
|
// Fetch a subtable based on index
|
|
if (subfield)
|
|
lua_getfield(L, -1, subfield);
|
|
else if (lsubfield)
|
|
lua_getfield(L, -1, lsubfield);
|
|
else
|
|
lua_rawgeti(L, -1, subindex);
|
|
|
|
// Subtable doesn't exist, make one now.
|
|
if (lua_isnil(L, -1))
|
|
{
|
|
lua_pop(L, 1);
|
|
lua_newtable(L);
|
|
|
|
// Store a link to the subtable for later.
|
|
lua_pushvalue(L, -1);
|
|
if (subfield)
|
|
lua_setfield(L, -3, subfield);
|
|
else if (lsubfield)
|
|
lua_setfield(L, -3, lsubfield);
|
|
else
|
|
lua_rawseti(L, -3, subindex);
|
|
} }
|
|
|
|
// Add function to the table.
|
|
lua_pushvalue(L, 2);
|
|
lua_rawseti(L, -2, (int)(lua_objlen(L, -2) + 1));
|
|
|
|
if (subfield)
|
|
Z_Free(subfield);
|
|
return 0;
|
|
}
|
|
|
|
int LUA_HookLib(lua_State *L)
|
|
{
|
|
// Create all registry tables
|
|
enum hook i;
|
|
lua_newtable(L);
|
|
for (i = 0; i < hook_MAX; i++)
|
|
{
|
|
lua_newtable(L);
|
|
switch(i)
|
|
{
|
|
default:
|
|
break;
|
|
case hook_MobjSpawn:
|
|
case hook_MobjCollide:
|
|
case hook_MobjMoveCollide:
|
|
case hook_TouchSpecial:
|
|
case hook_MobjFuse:
|
|
case hook_MobjThinker:
|
|
case hook_BossThinker:
|
|
case hook_ShouldDamage:
|
|
case hook_MobjDamage:
|
|
case hook_MobjDeath:
|
|
case hook_BossDeath:
|
|
case hook_MobjRemoved:
|
|
lua_pushstring(L, "a");
|
|
lua_newtable(L);
|
|
lua_rawset(L, -3);
|
|
break;
|
|
}
|
|
lua_rawseti(L, -2, i);
|
|
}
|
|
lua_setfield(L, LUA_REGISTRYINDEX, "hook");
|
|
lua_register(L, "addHook", lib_addHook);
|
|
return 0;
|
|
}
|
|
|
|
boolean LUAh_MobjHook(mobj_t *mo, enum hook which)
|
|
{
|
|
boolean hooked = false;
|
|
if (!gL)
|
|
return false;
|
|
|
|
// clear the stack (just in case)
|
|
lua_pop(gL, -1);
|
|
|
|
// hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, which);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
// generic subtable
|
|
lua_pushstring(gL, "a");
|
|
lua_rawget(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
LUA_PushUserdata(gL, mo, META_MOBJ);
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -3)) {
|
|
CONS_Debug(DBG_LUA, "MobjHook: Calling hook_%s for generic mobj types\n", hookNames[which]);
|
|
lua_pushvalue(gL, -3); // mo
|
|
// stack is: hook_Mobj table, subtable "a", mobj, i, function, mobj
|
|
if (lua_pcall(gL, 1, 1, 0)) {
|
|
// A run-time error occurred.
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL, 1);
|
|
// Remove this function from the hook table to prevent further errors.
|
|
lua_pushvalue(gL, -1); // key
|
|
lua_pushnil(gL); // value
|
|
lua_rawset(gL, -5); // table
|
|
CONS_Printf("Hook removed.\n");
|
|
}
|
|
else
|
|
{
|
|
if (lua_toboolean(gL, -1))
|
|
hooked = true;
|
|
lua_pop(gL, 1);
|
|
}
|
|
}
|
|
// stack is: hook_Mobj table, subtable "a", mobj
|
|
lua_remove(gL, -2); // pop subtable, leave mobj
|
|
|
|
// mobjtype subtable
|
|
// stack is: hook_Mobj table, mobj
|
|
lua_rawgeti(gL, -2, mo->type);
|
|
if (lua_isnil(gL, -1)) {
|
|
lua_pop(gL, 3); // pop hook_Mobj table, mobj, and nil
|
|
// the stack should now be empty.
|
|
return false;
|
|
}
|
|
lua_remove(gL, -3); // remove hook table
|
|
// stack is: mobj, mobjtype subtable
|
|
lua_insert(gL, lua_gettop(gL)-1); // swap subtable with mobj
|
|
// stack is: mobjtype subtable, mobj
|
|
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -3)) {
|
|
CONS_Debug(DBG_LUA, "MobjHook: Calling hook_%s for mobj type %d\n", hookNames[which], mo->type);
|
|
lua_pushvalue(gL, -3); // mo
|
|
// stack is: mobjtype subtable, mobj, i, function, mobj
|
|
if (lua_pcall(gL, 1, 1, 0)) {
|
|
// A run-time error occurred.
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL, 1);
|
|
// Remove this function from the hook table to prevent further errors.
|
|
lua_pushvalue(gL, -1); // key
|
|
lua_pushnil(gL); // value
|
|
lua_rawset(gL, -5); // table
|
|
CONS_Printf("Hook removed.\n");
|
|
}
|
|
else
|
|
{
|
|
if (lua_toboolean(gL, -1))
|
|
hooked = true;
|
|
lua_pop(gL, 1);
|
|
}
|
|
}
|
|
|
|
lua_pop(gL, 2); // pop mobj and subtable
|
|
// the stack should now be empty.
|
|
|
|
lua_gc(gL, LUA_GCSTEP, 3);
|
|
return hooked;
|
|
}
|
|
|
|
// Hook for map change (before load)
|
|
void LUAh_MapChange(void)
|
|
{
|
|
if (!gL)
|
|
return;
|
|
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_MapChange);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
lua_pushinteger(gL, gamemap);
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -3) != 0) {
|
|
lua_pushvalue(gL, -3); // gamemap
|
|
LUA_Call(gL, 1);
|
|
}
|
|
lua_pop(gL, 1);
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
}
|
|
|
|
// Hook for map load
|
|
void LUAh_MapLoad(void)
|
|
{
|
|
if (!gL)
|
|
return;
|
|
|
|
lua_pop(gL, -1);
|
|
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_MapLoad);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
lua_pushinteger(gL, gamemap);
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -3) != 0) {
|
|
lua_pushvalue(gL, -3); // gamemap
|
|
LUA_Call(gL, 1);
|
|
}
|
|
lua_pop(gL, -1);
|
|
lua_gc(gL, LUA_GCCOLLECT, 0);
|
|
}
|
|
|
|
// Hook for Got_AddPlayer
|
|
void LUAh_PlayerJoin(int playernum)
|
|
{
|
|
if (!gL)
|
|
return;
|
|
|
|
lua_pop(gL, -1);
|
|
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_PlayerJoin);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
lua_pushinteger(gL, playernum);
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -3) != 0) {
|
|
lua_pushvalue(gL, -3); // playernum
|
|
LUA_Call(gL, 1);
|
|
}
|
|
lua_pop(gL, -1);
|
|
lua_gc(gL, LUA_GCCOLLECT, 0);
|
|
}
|
|
|
|
// Hook for frame (after mobj and player thinkers)
|
|
void LUAh_ThinkFrame(void)
|
|
{
|
|
if (!gL)
|
|
return;
|
|
|
|
lua_pop(gL, -1);
|
|
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_ThinkFrame);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -2) != 0)
|
|
{
|
|
//LUA_Call(gL, 0);
|
|
if (lua_pcall(gL, 0, 0, 0))
|
|
{
|
|
// A run-time error occurred.
|
|
CONS_Alert(CONS_WARNING,"%s\n", lua_tostring(gL, -1));
|
|
lua_pop(gL, 1);
|
|
// Remove this function from the hook table to prevent further errors.
|
|
lua_pushvalue(gL, -1); // key
|
|
lua_pushnil(gL); // value
|
|
lua_rawset(gL, -4); // table
|
|
CONS_Printf("Hook removed.\n");
|
|
}
|
|
}
|
|
lua_pop(gL, -1);
|
|
lua_gc(gL, LUA_GCCOLLECT, 0);
|
|
}
|
|
|
|
// Hook for PIT_CheckThing by (thing) mobj type (thing1 = thing, thing2 = tmthing)
|
|
UINT8 LUAh_MobjCollide(mobj_t *thing1, mobj_t *thing2)
|
|
{
|
|
UINT8 shouldCollide = 0; // 0 = default, 1 = force yes, 2 = force no.
|
|
if (!gL)
|
|
return 0;
|
|
|
|
// clear the stack
|
|
lua_pop(gL, -1);
|
|
|
|
// hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_MobjCollide);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
// mobjtype subtable
|
|
lua_rawgeti(gL, -1, thing1->type);
|
|
if (lua_isnil(gL, -1)) {
|
|
lua_pop(gL, 2);
|
|
return 0;
|
|
}
|
|
lua_remove(gL, -2); // remove hook table
|
|
|
|
LUA_PushUserdata(gL, thing1, META_MOBJ);
|
|
LUA_PushUserdata(gL, thing2, META_MOBJ);
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -4)) {
|
|
lua_pushvalue(gL, -4); // thing1
|
|
lua_pushvalue(gL, -4); // thing2
|
|
if (lua_pcall(gL, 2, 1, 0)) {
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL, 1);
|
|
continue;
|
|
}
|
|
if (!lua_isnil(gL, -1))
|
|
{ // if nil, leave shouldCollide = 0.
|
|
if (lua_toboolean(gL, -1))
|
|
shouldCollide = 1; // Force yes
|
|
else
|
|
shouldCollide = 2; // Force no
|
|
}
|
|
lua_pop(gL, 1); // pop return value
|
|
}
|
|
lua_pop(gL, 3); // pop arguments and mobjtype table
|
|
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
return shouldCollide;
|
|
}
|
|
|
|
// Hook for PIT_CheckThing by (tmthing) mobj type (thing1 = tmthing, thing2 = thing)
|
|
UINT8 LUAh_MobjMoveCollide(mobj_t *thing1, mobj_t *thing2)
|
|
{
|
|
UINT8 shouldCollide = 0; // 0 = default, 1 = force yes, 2 = force no.
|
|
if (!gL)
|
|
return 0;
|
|
|
|
// clear the stack
|
|
lua_pop(gL, -1);
|
|
|
|
// hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_MobjMoveCollide);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
// mobjtype subtable
|
|
lua_rawgeti(gL, -1, thing1->type);
|
|
if (lua_isnil(gL, -1)) {
|
|
lua_pop(gL, 2);
|
|
return 0;
|
|
}
|
|
lua_remove(gL, -2); // remove hook table
|
|
|
|
LUA_PushUserdata(gL, thing1, META_MOBJ);
|
|
LUA_PushUserdata(gL, thing2, META_MOBJ);
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -4)) {
|
|
lua_pushvalue(gL, -4); // thing1
|
|
lua_pushvalue(gL, -4); // thing2
|
|
if (lua_pcall(gL, 2, 1, 0)) {
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL, 1);
|
|
continue;
|
|
}
|
|
if (!lua_isnil(gL, -1))
|
|
{ // if nil, leave shouldCollide = 0.
|
|
if (lua_toboolean(gL, -1))
|
|
shouldCollide = 1; // Force yes
|
|
else
|
|
shouldCollide = 2; // Force no
|
|
}
|
|
lua_pop(gL, 1); // pop return value
|
|
}
|
|
lua_pop(gL, 3); // pop arguments and mobjtype table
|
|
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
return shouldCollide;
|
|
}
|
|
|
|
// Hook for P_TouchSpecialThing by mobj type
|
|
boolean LUAh_TouchSpecial(mobj_t *special, mobj_t *toucher)
|
|
{
|
|
boolean hooked = false;
|
|
if (!gL)
|
|
return false;
|
|
|
|
// clear the stack
|
|
lua_pop(gL, -1);
|
|
|
|
// get hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_TouchSpecial);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
// get mobjtype subtable
|
|
lua_pushinteger(gL, special->type);
|
|
lua_rawget(gL, 1);
|
|
if (lua_isnil(gL, -1)) {
|
|
lua_pop(gL, 2);
|
|
return false;
|
|
}
|
|
lua_remove(gL, 1); // pop hook table off the stack
|
|
|
|
LUA_PushUserdata(gL, special, META_MOBJ);
|
|
LUA_PushUserdata(gL, toucher, META_MOBJ);
|
|
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, 1) != 0) {
|
|
lua_pushvalue(gL, 2); // special
|
|
lua_pushvalue(gL, 3); // toucher
|
|
LUA_Call(gL, 2); // pops hook function, special, toucher
|
|
hooked = true;
|
|
}
|
|
|
|
lua_pop(gL, -1);
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
return hooked;
|
|
}
|
|
|
|
// Hook for P_DamageMobj by mobj type (Should mobj take damage?)
|
|
UINT8 LUAh_ShouldDamage(mobj_t *target, mobj_t *inflictor, mobj_t *source, INT32 damage)
|
|
{
|
|
UINT8 shouldDamage = 0; // 0 = default, 1 = force yes, 2 = force no.
|
|
if (!gL)
|
|
return 0;
|
|
|
|
// clear the stack
|
|
lua_pop(gL, -1);
|
|
|
|
// hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_ShouldDamage);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
// mobjtype subtable
|
|
lua_rawgeti(gL, -1, target->type);
|
|
if (lua_isnil(gL, -1)) {
|
|
lua_pop(gL, 2);
|
|
return 0;
|
|
}
|
|
lua_remove(gL, -2); // remove hook table
|
|
|
|
LUA_PushUserdata(gL, target, META_MOBJ);
|
|
LUA_PushUserdata(gL, inflictor, META_MOBJ);
|
|
LUA_PushUserdata(gL, source, META_MOBJ);
|
|
lua_pushinteger(gL, damage);
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -6)) {
|
|
lua_pushvalue(gL, -6); // target
|
|
lua_pushvalue(gL, -6); // inflictor
|
|
lua_pushvalue(gL, -6); // source
|
|
lua_pushvalue(gL, -6); // damage
|
|
if (lua_pcall(gL, 4, 1, 0)) {
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL, 1);
|
|
continue;
|
|
}
|
|
if (!lua_isnil(gL, -1))
|
|
{ // if nil, leave shouldDamage = 0.
|
|
if (lua_toboolean(gL, -1))
|
|
shouldDamage = 1; // Force yes
|
|
else
|
|
shouldDamage = 2; // Force no
|
|
}
|
|
lua_pop(gL, 1); // pop return value
|
|
}
|
|
lua_pop(gL, 5); // pop arguments and mobjtype table
|
|
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
return shouldDamage;
|
|
}
|
|
|
|
// Hook for P_DamageMobj by mobj type (Mobj actually takes damage!)
|
|
boolean LUAh_MobjDamage(mobj_t *target, mobj_t *inflictor, mobj_t *source, INT32 damage)
|
|
{
|
|
boolean handled = false;
|
|
if (!gL)
|
|
return false;
|
|
|
|
// clear the stack
|
|
lua_pop(gL, -1);
|
|
|
|
// hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_MobjDamage);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
// mobjtype subtable
|
|
lua_rawgeti(gL, -1, target->type);
|
|
if (lua_isnil(gL, -1)) {
|
|
lua_pop(gL, 2);
|
|
return false;
|
|
}
|
|
lua_remove(gL, -2); // remove hook table
|
|
|
|
LUA_PushUserdata(gL, target, META_MOBJ);
|
|
LUA_PushUserdata(gL, inflictor, META_MOBJ);
|
|
LUA_PushUserdata(gL, source, META_MOBJ);
|
|
lua_pushinteger(gL, damage);
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -6)) {
|
|
lua_pushvalue(gL, -6); // target
|
|
lua_pushvalue(gL, -6); // inflictor
|
|
lua_pushvalue(gL, -6); // source
|
|
lua_pushvalue(gL, -6); // damage
|
|
if (lua_pcall(gL, 4, 1, 0)) {
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL, 1);
|
|
continue;
|
|
}
|
|
if (lua_toboolean(gL, -1))
|
|
handled = true;
|
|
lua_pop(gL, 1); // pop return value
|
|
}
|
|
lua_pop(gL, 5); // pop arguments and mobjtype table
|
|
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
return handled;
|
|
}
|
|
|
|
// Hook for P_KillMobj by mobj type
|
|
boolean LUAh_MobjDeath(mobj_t *target, mobj_t *inflictor, mobj_t *source)
|
|
{
|
|
boolean handled = false;
|
|
if (!gL)
|
|
return false;
|
|
|
|
// clear the stack
|
|
lua_pop(gL, -1);
|
|
|
|
// hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_MobjDeath);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
// mobjtype subtable
|
|
lua_rawgeti(gL, -1, target->type);
|
|
if (lua_isnil(gL, -1)) {
|
|
lua_pop(gL, 2);
|
|
return false;
|
|
}
|
|
lua_remove(gL, -2); // remove hook table
|
|
|
|
LUA_PushUserdata(gL, target, META_MOBJ);
|
|
LUA_PushUserdata(gL, inflictor, META_MOBJ);
|
|
LUA_PushUserdata(gL, source, META_MOBJ);
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, -5)) {
|
|
lua_pushvalue(gL, -5); // target
|
|
lua_pushvalue(gL, -5); // inflictor
|
|
lua_pushvalue(gL, -5); // source
|
|
if (lua_pcall(gL, 3, 1, 0)) {
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL, 1);
|
|
continue;
|
|
}
|
|
if (lua_toboolean(gL, -1))
|
|
handled = true;
|
|
lua_pop(gL, 1); // pop return value
|
|
}
|
|
lua_pop(gL, 4); // pop arguments and mobjtype table
|
|
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
return handled;
|
|
}
|
|
|
|
// Hook for B_BuildTiccmd
|
|
boolean LUAh_BotTiccmd(player_t *bot, ticcmd_t *cmd)
|
|
{
|
|
boolean hooked = false;
|
|
if (!gL)
|
|
return false;
|
|
|
|
// clear the stack
|
|
lua_pop(gL, -1);
|
|
|
|
// hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_BotTiccmd);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
LUA_PushUserdata(gL, bot, META_PLAYER);
|
|
LUA_PushUserdata(gL, cmd, META_TICCMD);
|
|
|
|
lua_pushnil(gL);
|
|
while (lua_next(gL, 1)) {
|
|
lua_pushvalue(gL, 2); // bot
|
|
lua_pushvalue(gL, 3); // cmd
|
|
LUA_Call(gL, 2);
|
|
hooked = true;
|
|
}
|
|
|
|
lua_pop(gL, -1);
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
return hooked;
|
|
}
|
|
|
|
// Hook for B_BuildTailsTiccmd by skin name
|
|
boolean LUAh_BotAI(mobj_t *sonic, mobj_t *tails, ticcmd_t *cmd)
|
|
{
|
|
if (!gL || !tails->skin)
|
|
return false;
|
|
|
|
// clear the stack
|
|
lua_pop(gL, -1);
|
|
|
|
// hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_BotAI);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
// bot skin ai function
|
|
lua_getfield(gL, 1, ((skin_t *)tails->skin)->name);
|
|
if (lua_isnil(gL, -1)) {
|
|
lua_pop(gL, 2);
|
|
return false;
|
|
}
|
|
lua_remove(gL, 1); // pop the hook table
|
|
|
|
// Takes sonic, tails
|
|
// Returns forward, backward, left, right, jump, spin
|
|
LUA_PushUserdata(gL, sonic, META_MOBJ);
|
|
LUA_PushUserdata(gL, tails, META_MOBJ);
|
|
if (lua_pcall(gL, 2, 8, 0)) {
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL,-1);
|
|
return false;
|
|
}
|
|
|
|
// This turns forward, backward, left, right, jump, and spin into a proper ticcmd for tails.
|
|
if (lua_istable(gL, 1)) {
|
|
boolean forward=false, backward=false, left=false, right=false, strafeleft=false, straferight=false, jump=false, spin=false;
|
|
|
|
#define CHECKFIELD(field) \
|
|
lua_getfield(gL, 1, #field);\
|
|
if (lua_toboolean(gL, -1))\
|
|
field = true;\
|
|
lua_pop(gL, 1);
|
|
|
|
CHECKFIELD(forward)
|
|
CHECKFIELD(backward)
|
|
CHECKFIELD(left)
|
|
CHECKFIELD(right)
|
|
CHECKFIELD(strafeleft)
|
|
CHECKFIELD(straferight)
|
|
CHECKFIELD(jump)
|
|
CHECKFIELD(spin)
|
|
|
|
#undef CHECKFIELD
|
|
|
|
B_KeysToTiccmd(tails, cmd, forward, backward, left, right, strafeleft, straferight, jump, spin);
|
|
} else
|
|
B_KeysToTiccmd(tails, cmd, lua_toboolean(gL, 1), lua_toboolean(gL, 2), lua_toboolean(gL, 3), lua_toboolean(gL, 4), lua_toboolean(gL, 5), lua_toboolean(gL, 6), lua_toboolean(gL, 7), lua_toboolean(gL, 8));
|
|
|
|
lua_pop(gL, -1);
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
return true;
|
|
}
|
|
|
|
// Hook for linedef executors
|
|
boolean LUAh_LinedefExecute(line_t *line, mobj_t *mo)
|
|
{
|
|
if (!gL)
|
|
return false;
|
|
|
|
// clear the stack
|
|
lua_pop(gL, -1);
|
|
|
|
// get hook table
|
|
lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
|
|
I_Assert(lua_istable(gL, -1));
|
|
lua_rawgeti(gL, -1, hook_LinedefExecute);
|
|
lua_remove(gL, -2);
|
|
I_Assert(lua_istable(gL, -1));
|
|
|
|
// get function by line text
|
|
lua_getfield(gL, 1, line->text);
|
|
if (lua_isnil(gL, -1)) {
|
|
lua_pop(gL, 2);
|
|
return false;
|
|
}
|
|
lua_remove(gL, 1); // pop hook table off the stack
|
|
|
|
LUA_PushUserdata(gL, line, META_LINE);
|
|
LUA_PushUserdata(gL, mo, META_MOBJ);
|
|
LUA_Call(gL, 2); // pops hook function, line, mo
|
|
|
|
lua_pop(gL, -1);
|
|
lua_gc(gL, LUA_GCSTEP, 1);
|
|
return true;
|
|
}
|
|
|
|
#endif
|