158 lines
3.4 KiB
C
158 lines
3.4 KiB
C
#include "lua.h"
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#include "lauxlib.h"
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#include "hook.h"
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#include "mission.h"
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#include "log.h"
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#include "lephisto.h"
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#include "rng.h"
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#include "space.h"
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#include "misn_lua.h"
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// FUCK LUA!!!
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#define luaL_register(L,n,l) (luaL_openlib(L, (n),(l), 0))
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#define MIN_ARGS(n) if(lua_gettop(L) < n) return 0
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static Mission* cur_mission = NULL;
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// -- Libraries. --
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// Mission.
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static int misn_setTitle(lua_State* L);
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static int misn_setDesc(lua_State* L);
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static int misn_setReward(lua_State* L);
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static const luaL_Reg misn_methods[] = {
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{ "setTitle", misn_setTitle },
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{ "setDesc", misn_setDesc },
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{ "setReward", misn_setReward },
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{ 0, 0 }
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};
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// Space.
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static int space_getPlanet(lua_State* L);
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static const luaL_Reg space_methods[] = {
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{ "getPlanet", space_getPlanet },
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{ 0, 0 }
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};
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// RNG.
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static int rnd_int(lua_State*L);
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static const luaL_Reg rnd_methods[] = {
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{ "int", rnd_int },
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{ 0, 0 }
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};
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static int hook_land(lua_State* L);
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static const luaL_Reg hook_methods[] = {
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{ "land", hook_land },
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{ 0, 0 },
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};
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// Register all the libaries.
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int misn_loadLibs(lua_State* L) {
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luaL_register(L, "misn", misn_methods);
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luaL_register(L, "space", space_methods);
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luaL_register(L, "rnd", rnd_methods);
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luaL_register(L, "hook", hook_methods);
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return 0;
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}
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// Run a mission function.
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int misn_run(Mission* misn, char* func) {
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int ret;
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cur_mission = misn;
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lua_getglobal(misn->L, func);
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if((ret = lua_pcall(misn->L, 0, 0, 0)))
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// Did an oops.
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WARN("Mission '%s' -> '%s' : %s",
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cur_mission->data->name, func, lua_tostring(misn->L, -1));
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cur_mission = NULL;
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return ret;
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}
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// -- Mission. --
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static int misn_setTitle(lua_State* L) {
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MIN_ARGS(1);
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if(lua_isstring(L, -1)) {
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if(cur_mission->title)
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// Cleanup the old title.
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free(cur_mission->title);
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cur_mission->title = strdup(lua_tostring(L, -1));
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}
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return 0;
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}
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static int misn_setDesc(lua_State* L) {
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MIN_ARGS(1);
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if(lua_isstring(L, -1)) {
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if(cur_mission->title)
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// Cleanup the old description.
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free(cur_mission->desc);
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cur_mission->desc = strdup(lua_tostring(L, -1));
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}
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return 0;
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}
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static int misn_setReward(lua_State* L) {
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MIN_ARGS(1);
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if(lua_isstring(L, -1)) {
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if(cur_mission->reward)
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// Cleanup the old reward.
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free(cur_mission->reward);
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cur_mission->reward = strdup(lua_tostring(L, -1));
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}
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return 0;
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}
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static int space_getPlanet(lua_State* L) {
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(void)L;
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return 0;
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}
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static rnd_int(lua_State* L) {
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int o;
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o = lua_gettop(L);
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if(o == 0) lua_pushnumber(L, RNGF()); // Random double o <= x <= 1.
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else if(o == 1) {
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// Random int 0 <= x <= param.
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if(lua_isnumber(L, -1))
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lua_pushnumber(L, RNG(0, (int)lua_tonumber(L, -1)));
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else return 0;
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}
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else if(o >= 2) {
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// Random int param 1 <= x <= param 2.
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if(lua_isnumber(L, -1) && lua_isnumber(L, -2))
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lua_pushnumber(L, RNG((int)lua_tonumber(L, -2), (int)lua_tonumber(L,-1)));
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else return 0;
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}
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else return 0;
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// Unless it's returned 0 already it'll always return param.
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return 1;
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}
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// -- HOOK --
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static int hook_land(lua_State* L) {
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char* func;
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MIN_ARGS(1);
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if(lua_isstring(L, -1)) func = (char*)lua_tostring(L, -1);
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else {
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WARN("Mission '%s': trying to push non-valid function hook",
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cur_mission->data->name);
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return 0;
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}
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hook_add(L, cur_mission->id, func, "land");
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return 0;
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}
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