mirror of
https://git.do.srb2.org/KartKrew/Kart-Public.git
synced 2024-12-28 05:11:34 +00:00
865 lines
21 KiB
C
865 lines
21 KiB
C
// SONIC ROBO BLAST 2
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//-----------------------------------------------------------------------------
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// Copyright (C) 2012-2014 by John "JTE" Muniz.
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// Copyright (C) 2012-2014 by Sonic Team Junior.
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//
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// This program is free software distributed under the
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// terms of the GNU General Public License, version 2.
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// See the 'LICENSE' file for more details.
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//-----------------------------------------------------------------------------
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/// \file lua_hooklib.c
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/// \brief hooks for Lua scripting
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#include "doomdef.h"
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#ifdef HAVE_BLUA
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#include "doomstat.h"
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#include "p_mobj.h"
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#include "r_things.h"
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#include "b_bot.h"
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#include "z_zone.h"
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#include "lua_script.h"
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#include "lua_libs.h"
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#include "lua_hook.h"
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#include "lua_hud.h" // hud_running errors
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static UINT8 hooksAvailable[(hook_MAX/8)+1];
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const char *const hookNames[hook_MAX+1] = {
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"NetVars",
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"MapChange",
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"MapLoad",
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"PlayerJoin",
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"ThinkFrame",
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"MobjSpawn",
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"MobjCollide",
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"MobjMoveCollide",
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"TouchSpecial",
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"MobjFuse",
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"MobjThinker",
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"BossThinker",
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"ShouldDamage",
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"MobjDamage",
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"MobjDeath",
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"BossDeath",
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"MobjRemoved",
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"BotTiccmd",
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"BotAI",
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"LinedefExecute",
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NULL
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};
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// Takes hook, function, and additional arguments (mobj type to act on, etc.)
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static int lib_addHook(lua_State *L)
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{
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UINT16 hook;
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boolean notable = false;
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boolean subtable = false;
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UINT32 subindex = 0;
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char *subfield = NULL;
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const char *lsubfield = NULL;
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hook = (UINT16)luaL_checkoption(L, 1, NULL, hookNames);
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luaL_checktype(L, 2, LUA_TFUNCTION);
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if (hud_running)
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return luaL_error(L, "HUD rendering code should not call this function!");
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switch(hook)
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{
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// Take a mobjtype enum which this hook is specifically for.
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case hook_MobjSpawn:
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case hook_MobjCollide:
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case hook_MobjMoveCollide:
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case hook_TouchSpecial:
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case hook_MobjFuse:
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case hook_MobjThinker:
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case hook_BossThinker:
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case hook_ShouldDamage:
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case hook_MobjDamage:
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case hook_MobjDeath:
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case hook_BossDeath:
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case hook_MobjRemoved:
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subtable = true;
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if (lua_isnumber(L, 3))
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subindex = (UINT32)luaL_checkinteger(L, 3);
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else
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lsubfield = "a";
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lua_settop(L, 2);
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break;
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case hook_BotAI: // Only one AI function per skin, please!
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notable = true;
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subtable = true;
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subfield = ZZ_Alloc(strlen(luaL_checkstring(L, 3))+1);
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{ // lowercase copy
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char *p = subfield;
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const char *s = luaL_checkstring(L, 3);
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do {
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*p = tolower(*s);
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++p;
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} while(*(++s));
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*p = 0;
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}
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lua_settop(L, 3);
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break;
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case hook_LinedefExecute: // Get one linedef executor function by name
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notable = true;
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subtable = true;
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subfield = ZZ_Alloc(strlen(luaL_checkstring(L, 3))+1);
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{ // uppercase copy
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char *p = subfield;
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const char *s = luaL_checkstring(L, 3);
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do {
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*p = toupper(*s);
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++p;
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} while(*(++s));
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*p = 0;
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}
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lua_settop(L, 3);
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break;
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default:
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lua_settop(L, 2);
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break;
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}
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lua_getfield(L, LUA_REGISTRYINDEX, "hook");
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I_Assert(lua_istable(L, -1));
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// This hook type only allows one entry, not an array of hooks.
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// New hooks will overwrite the previous ones, and the stack is one table shorter.
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if (notable)
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{
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if (subtable)
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{
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lua_rawgeti(L, -1, hook);
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lua_remove(L, -2); // pop "hook"
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I_Assert(lua_istable(L, -1));
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lua_pushvalue(L, 2);
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if (subfield)
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lua_setfield(L, -2, subfield);
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else if (lsubfield)
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lua_setfield(L, -2, lsubfield);
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else
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lua_rawseti(L, -2, subindex);
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} else {
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lua_pushvalue(L, 2);
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lua_rawseti(L, -2, hook);
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}
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hooksAvailable[hook/8] |= 1<<(hook%8);
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return 0;
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}
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// Fetch the hook's table from the registry.
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// It should always exist, since LUA_HookLib creates a table for every hook.
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lua_rawgeti(L, -1, hook);
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lua_remove(L, -2); // pop "hook"
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I_Assert(lua_istable(L, -1));
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if (subtable)
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{
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// Fetch a subtable based on index
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if (subfield)
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lua_getfield(L, -1, subfield);
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else if (lsubfield)
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lua_getfield(L, -1, lsubfield);
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else
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lua_rawgeti(L, -1, subindex);
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// Subtable doesn't exist, make one now.
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if (lua_isnil(L, -1))
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{
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lua_pop(L, 1);
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lua_newtable(L);
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// Store a link to the subtable for later.
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lua_pushvalue(L, -1);
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if (subfield)
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lua_setfield(L, -3, subfield);
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else if (lsubfield)
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lua_setfield(L, -3, lsubfield);
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else
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lua_rawseti(L, -3, subindex);
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} }
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// Add function to the table.
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lua_pushvalue(L, 2);
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lua_rawseti(L, -2, (int)(lua_objlen(L, -2) + 1));
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if (subfield)
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Z_Free(subfield);
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hooksAvailable[hook/8] |= 1<<(hook%8);
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return 0;
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}
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int LUA_HookLib(lua_State *L)
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{
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// Create all registry tables
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enum hook i;
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memset(hooksAvailable,0,sizeof(UINT8[(hook_MAX/8)+1]));
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lua_newtable(L);
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for (i = 0; i < hook_MAX; i++)
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{
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lua_newtable(L);
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switch(i)
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{
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default:
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break;
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case hook_MobjSpawn:
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case hook_MobjCollide:
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case hook_MobjMoveCollide:
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case hook_TouchSpecial:
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case hook_MobjFuse:
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case hook_MobjThinker:
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case hook_BossThinker:
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case hook_ShouldDamage:
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case hook_MobjDamage:
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case hook_MobjDeath:
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case hook_BossDeath:
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case hook_MobjRemoved:
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lua_pushstring(L, "a");
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lua_newtable(L);
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lua_rawset(L, -3);
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break;
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}
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lua_rawseti(L, -2, i);
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}
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lua_setfield(L, LUA_REGISTRYINDEX, "hook");
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lua_register(L, "addHook", lib_addHook);
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return 0;
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}
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boolean LUAh_MobjHook(mobj_t *mo, enum hook which)
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{
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boolean hooked = false;
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if (!gL || !(hooksAvailable[which/8] & (1<<(which%8))))
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return false;
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// clear the stack (just in case)
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lua_pop(gL, -1);
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// hook table
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lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
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I_Assert(lua_istable(gL, -1));
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lua_rawgeti(gL, -1, which);
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lua_remove(gL, -2);
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I_Assert(lua_istable(gL, -1));
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// generic subtable
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lua_pushstring(gL, "a");
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lua_rawget(gL, -2);
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I_Assert(lua_istable(gL, -1));
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LUA_PushUserdata(gL, mo, META_MOBJ);
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lua_pushnil(gL);
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while (lua_next(gL, -3)) {
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CONS_Debug(DBG_LUA, "MobjHook: Calling hook_%s for generic mobj types\n", hookNames[which]);
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lua_pushvalue(gL, -3); // mo
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// stack is: hook_Mobj table, subtable "a", mobj, i, function, mobj
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if (lua_pcall(gL, 1, 1, 0)) {
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// A run-time error occurred.
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CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
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lua_pop(gL, 1);
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// Remove this function from the hook table to prevent further errors.
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lua_pushvalue(gL, -1); // key
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lua_pushnil(gL); // value
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lua_rawset(gL, -5); // table
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CONS_Printf("Hook removed.\n");
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}
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else
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{
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if (lua_toboolean(gL, -1))
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hooked = true;
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lua_pop(gL, 1);
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}
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}
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// stack is: hook_Mobj table, subtable "a", mobj
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lua_remove(gL, -2); // pop subtable, leave mobj
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// mobjtype subtable
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// stack is: hook_Mobj table, mobj
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lua_rawgeti(gL, -2, mo->type);
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if (lua_isnil(gL, -1)) {
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lua_pop(gL, 3); // pop hook_Mobj table, mobj, and nil
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// the stack should now be empty.
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return false;
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}
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lua_remove(gL, -3); // remove hook table
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// stack is: mobj, mobjtype subtable
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lua_insert(gL, lua_gettop(gL)-1); // swap subtable with mobj
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// stack is: mobjtype subtable, mobj
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lua_pushnil(gL);
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while (lua_next(gL, -3)) {
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CONS_Debug(DBG_LUA, "MobjHook: Calling hook_%s for mobj type %d\n", hookNames[which], mo->type);
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lua_pushvalue(gL, -3); // mo
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// stack is: mobjtype subtable, mobj, i, function, mobj
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if (lua_pcall(gL, 1, 1, 0)) {
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// A run-time error occurred.
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CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
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lua_pop(gL, 1);
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// Remove this function from the hook table to prevent further errors.
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lua_pushvalue(gL, -1); // key
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lua_pushnil(gL); // value
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lua_rawset(gL, -5); // table
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CONS_Printf("Hook removed.\n");
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}
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else
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{
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if (lua_toboolean(gL, -1))
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hooked = true;
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lua_pop(gL, 1);
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}
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}
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lua_pop(gL, 2); // pop mobj and subtable
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// the stack should now be empty.
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lua_gc(gL, LUA_GCSTEP, 3);
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return hooked;
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}
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// Hook for map change (before load)
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void LUAh_MapChange(void)
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{
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if (!gL || !(hooksAvailable[hook_MapChange/8] & (1<<(hook_MapChange%8))))
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return;
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lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
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I_Assert(lua_istable(gL, -1));
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lua_rawgeti(gL, -1, hook_MapChange);
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lua_remove(gL, -2);
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I_Assert(lua_istable(gL, -1));
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lua_pushinteger(gL, gamemap);
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lua_pushnil(gL);
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while (lua_next(gL, -3) != 0) {
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lua_pushvalue(gL, -3); // gamemap
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LUA_Call(gL, 1);
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}
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lua_pop(gL, 1);
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lua_gc(gL, LUA_GCSTEP, 1);
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}
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// Hook for map load
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void LUAh_MapLoad(void)
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{
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if (!gL || !(hooksAvailable[hook_MapLoad/8] & (1<<(hook_MapLoad%8))))
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return;
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lua_pop(gL, -1);
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lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
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I_Assert(lua_istable(gL, -1));
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lua_rawgeti(gL, -1, hook_MapLoad);
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lua_remove(gL, -2);
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I_Assert(lua_istable(gL, -1));
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lua_pushinteger(gL, gamemap);
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lua_pushnil(gL);
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while (lua_next(gL, -3) != 0) {
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lua_pushvalue(gL, -3); // gamemap
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LUA_Call(gL, 1);
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}
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lua_pop(gL, -1);
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lua_gc(gL, LUA_GCCOLLECT, 0);
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}
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// Hook for Got_AddPlayer
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void LUAh_PlayerJoin(int playernum)
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{
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if (!gL || !(hooksAvailable[hook_PlayerJoin/8] & (1<<(hook_PlayerJoin%8))))
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return;
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lua_pop(gL, -1);
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lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
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I_Assert(lua_istable(gL, -1));
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lua_rawgeti(gL, -1, hook_PlayerJoin);
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lua_remove(gL, -2);
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I_Assert(lua_istable(gL, -1));
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lua_pushinteger(gL, playernum);
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lua_pushnil(gL);
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while (lua_next(gL, -3) != 0) {
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lua_pushvalue(gL, -3); // playernum
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LUA_Call(gL, 1);
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}
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lua_pop(gL, -1);
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lua_gc(gL, LUA_GCCOLLECT, 0);
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}
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// Hook for frame (after mobj and player thinkers)
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void LUAh_ThinkFrame(void)
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{
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if (!gL || !(hooksAvailable[hook_ThinkFrame/8] & (1<<(hook_ThinkFrame%8))))
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return;
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lua_pop(gL, -1);
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lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
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I_Assert(lua_istable(gL, -1));
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lua_rawgeti(gL, -1, hook_ThinkFrame);
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lua_remove(gL, -2);
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I_Assert(lua_istable(gL, -1));
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lua_pushnil(gL);
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while (lua_next(gL, -2) != 0)
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{
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//LUA_Call(gL, 0);
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if (lua_pcall(gL, 0, 0, 0))
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{
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// A run-time error occurred.
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CONS_Alert(CONS_WARNING,"%s\n", lua_tostring(gL, -1));
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lua_pop(gL, 1);
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// Remove this function from the hook table to prevent further errors.
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lua_pushvalue(gL, -1); // key
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lua_pushnil(gL); // value
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lua_rawset(gL, -4); // table
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CONS_Printf("Hook removed.\n");
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}
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}
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lua_pop(gL, -1);
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lua_gc(gL, LUA_GCCOLLECT, 0);
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}
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// Hook for PIT_CheckThing by (thing) mobj type (thing1 = thing, thing2 = tmthing)
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UINT8 LUAh_MobjCollide(mobj_t *thing1, mobj_t *thing2)
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{
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UINT8 shouldCollide = 0; // 0 = default, 1 = force yes, 2 = force no.
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if (!gL || !(hooksAvailable[hook_MobjCollide/8] & (1<<(hook_MobjCollide%8))))
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return 0;
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// clear the stack
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lua_pop(gL, -1);
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// hook table
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lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
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I_Assert(lua_istable(gL, -1));
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lua_rawgeti(gL, -1, hook_MobjCollide);
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lua_remove(gL, -2);
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I_Assert(lua_istable(gL, -1));
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// mobjtype subtable
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lua_rawgeti(gL, -1, thing1->type);
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if (lua_isnil(gL, -1)) {
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lua_pop(gL, 2);
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return 0;
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}
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lua_remove(gL, -2); // remove hook table
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LUA_PushUserdata(gL, thing1, META_MOBJ);
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LUA_PushUserdata(gL, thing2, META_MOBJ);
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lua_pushnil(gL);
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while (lua_next(gL, -4)) {
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lua_pushvalue(gL, -4); // thing1
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lua_pushvalue(gL, -4); // thing2
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if (lua_pcall(gL, 2, 1, 0)) {
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CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
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lua_pop(gL, 1);
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continue;
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}
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if (!lua_isnil(gL, -1))
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{ // if nil, leave shouldCollide = 0.
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if (lua_toboolean(gL, -1))
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shouldCollide = 1; // Force yes
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else
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shouldCollide = 2; // Force no
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}
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lua_pop(gL, 1); // pop return value
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}
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lua_pop(gL, 3); // pop arguments and mobjtype table
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lua_gc(gL, LUA_GCSTEP, 1);
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return shouldCollide;
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}
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// Hook for PIT_CheckThing by (tmthing) mobj type (thing1 = tmthing, thing2 = thing)
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UINT8 LUAh_MobjMoveCollide(mobj_t *thing1, mobj_t *thing2)
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{
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UINT8 shouldCollide = 0; // 0 = default, 1 = force yes, 2 = force no.
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if (!gL || !(hooksAvailable[hook_MobjMoveCollide/8] & (1<<(hook_MobjMoveCollide%8))))
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return 0;
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// clear the stack
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lua_pop(gL, -1);
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// hook table
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lua_getfield(gL, LUA_REGISTRYINDEX, "hook");
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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 || !(hooksAvailable[hook_TouchSpecial/8] & (1<<(hook_TouchSpecial%8))))
|
|
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
|
|
if (lua_pcall(gL, 2, 1, 0)) { // pops hook function, special, toucher, pushes 1 return result
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL, 1);
|
|
continue;
|
|
}
|
|
if (lua_toboolean(gL, -1)) // if return true,
|
|
hooked = true; // override vanilla behavior
|
|
lua_pop(gL, 1); // pop return value
|
|
}
|
|
|
|
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 || !(hooksAvailable[hook_ShouldDamage/8] & (1<<(hook_ShouldDamage%8))))
|
|
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 || !(hooksAvailable[hook_MobjDamage/8] & (1<<(hook_MobjDamage%8))))
|
|
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 || !(hooksAvailable[hook_MobjDeath/8] & (1<<(hook_MobjDeath%8))))
|
|
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 || !(hooksAvailable[hook_BotTiccmd/8] & (1<<(hook_BotTiccmd%8))))
|
|
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
|
|
if (lua_pcall(gL, 2, 1, 0)) {
|
|
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL,-1));
|
|
lua_pop(gL, 1);
|
|
continue;
|
|
}
|
|
if (lua_toboolean(gL, -1))
|
|
hooked = true;
|
|
lua_pop(gL, 1); // pop return value
|
|
}
|
|
|
|
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 || !(hooksAvailable[hook_BotAI/8] & (1<<(hook_BotAI%8))))
|
|
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 || !(hooksAvailable[hook_LinedefExecute/8] & (1<<(hook_LinedefExecute%8))))
|
|
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
|