/* ResidualVM - A 3D game interpreter
 *
 * ResidualVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#include "common/foreach.h"

#include "engines/grim/grim.h"
#include "engines/grim/lua_v1.h"
#include "engines/grim/actor.h"
#include "engines/grim/costume.h"
#include "engines/grim/set.h"
#include "engines/grim/model.h"
#include "engines/grim/gfx_base.h"

#include "engines/grim/lua/lauxlib.h"

namespace Grim {

void Lua_V1::LoadActor() {
	lua_Object nameObj = lua_getparam(1);
	const char *name;

	if (lua_isnil(nameObj) || !lua_isstring(nameObj))
		name = "<unnamed>";
	else
		name = lua_getstring(nameObj);
	Actor *a = new Actor();
	a->setName(name);
	lua_pushusertag(a->getId(), MKTAG('A','C','T','R'));
}

void Lua_V1::GetActorTimeScale() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	lua_pushnumber(actor->getTimeScale());
}

void Lua_V1::SetSelectedActor() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;
	// TODO there is missing some check here: else lua_pushnil()
	g_grim->setSelectedActor(getactor(actorObj));
}

/* Get the currently selected actor, this is used in
 * "Camera-Relative" mode to handle the appropriate
 * actor for movement
 */
void Lua_V1::GetCameraActor() {
	// TODO verify what is going on with selected actor
	Actor *actor = g_grim->getSelectedActor();
	lua_pushusertag(actor->getId(), MKTAG('A','C','T','R'));
}

void Lua_V1::SetActorTalkColor() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object colorObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;
	if (!lua_isuserdata(colorObj) && lua_tag(colorObj) != MKTAG('C','O','L','R'))
		return;
	Actor *actor = getactor(actorObj);
	actor->setTalkColor(getcolor(colorObj));
}

void Lua_V1::GetActorTalkColor() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);
	int32 cTag = actor->getTalkColor().toEncodedValue();
	if (g_grim->getGameType() == GType_MONKEY4)
		cTag |= (0xFF << 24);
	lua_pushusertag(cTag, MKTAG('C','O','L','R'));
}

void Lua_V1::SetActorRestChore() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object choreObj = lua_getparam(2);
	lua_Object costumeObj = lua_getparam(3);
	Costume *costume;
	int chore;

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R') ||
			(!lua_isnumber(choreObj) && !lua_isnil(choreObj))) {
		return;
	}

	Actor *actor = getactor(actorObj);

	if (lua_isnil(choreObj)) {
		chore = -1;
	} else {
		chore = (int)lua_getnumber(choreObj);
	}
	if (!findCostume(costumeObj, actor, &costume))
		return;

	actor->setRestChore(chore, costume);
}

void Lua_V1::SetActorWalkChore() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object choreObj = lua_getparam(2);
	lua_Object costumeObj = lua_getparam(3);
	Costume *costume;
	int chore;

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R') ||
			(!lua_isnumber(choreObj) && !lua_isnil(choreObj))) {
		return;
	}

	Actor *actor = getactor(actorObj);

	if (lua_isnil(choreObj)) {
		chore = -1;
	} else {
		chore = (int)lua_getnumber(choreObj);
	}
	if (!findCostume(costumeObj, actor, &costume))
		return;

	actor->setWalkChore(chore, costume);
}

void Lua_V1::SetActorTurnChores() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object leftChoreObj = lua_getparam(2);
	lua_Object rightChoreObj = lua_getparam(3);
	lua_Object costumeObj = lua_getparam(4);
	Costume *costume;

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R') ||
			(!lua_isnumber(leftChoreObj) && !lua_isnumber(rightChoreObj))) {
		return;
	}

	Actor *actor = getactor(actorObj);
	int leftChore = (int)lua_getnumber(leftChoreObj);
	int rightChore = (int)lua_getnumber(rightChoreObj);

	if (!findCostume(costumeObj, actor, &costume))
		return;

	actor->setTurnChores(leftChore, rightChore, costume);
}

void Lua_V1::SetActorTalkChore() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object indexObj = lua_getparam(2);
	lua_Object choreObj = lua_getparam(3);
	lua_Object costumeObj = lua_getparam(4);
	Costume *costume;
	int chore;

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R') ||
			!lua_isnumber(indexObj) || (!lua_isnumber(choreObj) && !lua_isnil(choreObj))) {
		return;
	}

	int index = (int)lua_getnumber(indexObj);
	if (index < 1 || index > 16)
		return;

	Actor *actor = getactor(actorObj);

	if (lua_isnil(choreObj)) {
		chore = -1;
	} else {
		chore = (int)lua_getnumber(choreObj);
	}
	if (!findCostume(costumeObj, actor, &costume))
		return;

	actor->setTalkChore(index, chore, costume);
}

void Lua_V1::SetActorMumblechore() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object choreObj = lua_getparam(2);
	lua_Object costumeObj = lua_getparam(3);
	Costume *costume;
	int chore;

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R') ||
			(!lua_isnumber(choreObj) && !lua_isnil(choreObj))) {
		return;
	}

	Actor *actor = getactor(actorObj);

	if (lua_isnil(choreObj)) {
		chore = -1;
	} else {
		chore = (int)lua_getnumber(choreObj);
	}
	if (!findCostume(costumeObj, actor, &costume))
		return;

	actor->setMumbleChore(chore, costume);
}

void Lua_V1::SetActorVisibility() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	bool val = getbool(2);
	actor->setVisibility(val);
}

void Lua_V1::SetActorScale() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object scaleObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	float scale = 1.f;

	if (lua_isnumber(scaleObj))
		scale = lua_getnumber(scaleObj);

	actor->setScale(scale);
}

void Lua_V1::SetActorTimeScale() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object scaleObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	float scale = 1.f;

	if (lua_isnumber(scaleObj))
		scale = lua_getnumber(scaleObj);

	actor->setTimeScale(scale);
}

void Lua_V1::SetActorCollisionMode() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object modeObj  = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}

	Actor *actor = getactor(actorObj);
	Actor::CollisionMode mode = (Actor::CollisionMode)(int)(lua_getnumber(modeObj));

	actor->setCollisionMode(mode);
}

void Lua_V1::SetActorCollisionScale() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object scaleObj  = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}

	Actor *actor = getactor(actorObj);
	float scale = lua_getnumber(scaleObj);

	actor->setCollisionScale(scale);
}

void Lua_V1::PutActorAt() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object xObj = lua_getparam(2);
	lua_Object yObj = lua_getparam(3);
	lua_Object zObj = lua_getparam(4);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	if (!lua_isnumber(xObj) || !lua_isnumber(yObj) || !lua_isnumber(zObj)) {
		warning("PutActorAt called without valid target position");
		return;
	}

	Actor *actor = getactor(actorObj);
	float x = lua_getnumber(xObj);
	float y = lua_getnumber(yObj);
	float z = lua_getnumber(zObj);
	actor->setPos(Math::Vector3d(x, y, z));
}

void Lua_V1::GetActorPos() {
	lua_Object actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	Math::Vector3d pos = actor->getPos();
	lua_pushnumber(pos.x());
	lua_pushnumber(pos.y());
	lua_pushnumber(pos.z());
}

void Lua_V1::SetActorRot() {
	lua_Object actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	lua_Object p = lua_getparam(2);
	lua_Object y = lua_getparam(3);
	lua_Object r = lua_getparam(4);
	if (!lua_isnumber(p) || !lua_isnumber(y) || !lua_isnumber(r))
		return;
	float pitch = lua_getnumber(p);
	float yaw = lua_getnumber(y);
	float roll = lua_getnumber(r);
	if (getbool(5)) {
		actor->turnTo(pitch, yaw, roll, true);
	} else {
		actor->setRot(pitch, yaw, roll);
	}
}

void Lua_V1::GetActorRot() {
	lua_Object actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	lua_pushnumber(actor->getPitch().getDegrees());
	lua_pushnumber(actor->getYaw().getDegrees());
	lua_pushnumber(actor->getRoll().getDegrees());
}

void Lua_V1::IsActorTurning() {
	lua_Object actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	pushbool(actor->isTurning());
}

void Lua_V1::GetAngleBetweenActors() {
	lua_Object actor1Obj = lua_getparam(1);
	lua_Object actor2Obj = lua_getparam(2);

	if (!lua_isuserdata(actor1Obj) || lua_tag(actor1Obj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}
	if (!lua_isuserdata(actor2Obj) || lua_tag(actor2Obj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}
	Actor *actor1 = getactor(actor1Obj);
	Actor *actor2 = getactor(actor2Obj);

	if (!actor1 || !actor2) {
		lua_pushnil();
		return;
	}

	lua_pushnumber(actor1->getYawTo(actor2).getDegrees());
}

void Lua_V1::GetActorYawToPoint() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object pointObj = lua_getparam(2);
	lua_Object xObj, yObj, zObj;

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}

	Actor *actor = getactor(actorObj);
	if (lua_istable(pointObj)) {
		lua_pushobject(pointObj);
		lua_pushstring("x");
		xObj = lua_gettable();
		lua_pushobject(pointObj);
		lua_pushstring("y");
		yObj = lua_gettable();
		lua_pushobject(pointObj);
		lua_pushstring("z");
		zObj = lua_gettable();
	} else {
		xObj = pointObj;
		yObj = lua_getparam(3);
		zObj = lua_getparam(4);
	}
	float x = lua_getnumber(xObj);
	float y = lua_getnumber(yObj);
	float z = lua_getnumber(zObj);

	Math::Vector3d yawVector(x, y, z);

	lua_pushnumber(actor->getYawTo(yawVector).getDegrees());
}

/* Changes the set that an actor is associated with,
 * by changing the set to "nil" an actor is disabled
 * but should still not be destroyed.
 */
void Lua_V1::PutActorInSet() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object setObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	if (!lua_isstring(setObj) && !lua_isnil(setObj))
		return;

	const char *set = lua_getstring(setObj);

	// FIXME verify adding actor to set
	if (!set)
		set = "";
	if (!actor->isInSet(set))
		actor->putInSet(set);
}

void Lua_V1::SetActorWalkRate() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object rateObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;
	if (!lua_isnumber(rateObj))
		return;

	Actor *actor = getactor(actorObj);
	float rate = lua_getnumber(rateObj);
	actor->setWalkRate(rate);
}

void Lua_V1::GetActorWalkRate() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	lua_pushnumber(actor->getWalkRate());
}

void Lua_V1::SetActorTurnRate() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object rateObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;
	if (!lua_isnumber(rateObj))
		return;

	Actor *actor = getactor(actorObj);
	float rate = lua_getnumber(rateObj); // FIXME verify negate values of rate
	actor->setTurnRate(rate);
}

void Lua_V1::WalkActorForward() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;
	Actor *actor = getactor(actorObj);
	actor->walkForward();
}

void Lua_V1::SetActorReflection() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object angleObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	float angle = lua_getnumber(angleObj);
	actor->setReflection(angle);
}

void Lua_V1::GetActorPuckVector() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object addObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}

	Actor *actor = getactor(actorObj);
	if (!actor) {
		lua_pushnil();
		return;
	}

	Math::Vector3d result = actor->getPuckVector();
	if (!lua_isnil(addObj))
		result += actor->getPos();

	lua_pushnumber(result.x());
	lua_pushnumber(result.y());
	lua_pushnumber(result.z());
}

void Lua_V1::ActorPuckOrient() {
	lua_Object	actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		return;
	}

	Actor *actor = getactor(actorObj);
	actor->setPuckOrient(getbool(2));
}

void Lua_V1::WalkActorTo() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object xObj = lua_getparam(2);
	lua_Object yObj = lua_getparam(3);
	lua_Object zObj = lua_getparam(4);

	lua_Object txObj = lua_getparam(5);
	lua_Object tyObj = lua_getparam(6);
	lua_Object tzObj = lua_getparam(7);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Math::Vector3d destVec;
	Actor *actor = getactor(actorObj);
	if (!lua_isnumber(xObj)) {
		if (!lua_isuserdata(xObj) || lua_tag(xObj) != MKTAG('A','C','T','R'))
			return;
		Actor *destActor = getactor(xObj);
		destVec = destActor->getPos();
	} else {
		float x = lua_getnumber(xObj);
		float y = lua_getnumber(yObj);
		float z = lua_getnumber(zObj);
		destVec.set(x, y, z);
	}

	// TODO figure out purpose this
	float tx = lua_getnumber(txObj);
	float ty = lua_getnumber(tyObj);
	float tz = lua_getnumber(tzObj);
	Math::Vector3d tVec(tx, ty, tz);

	actor->walkTo(destVec);
}

/* This draw an actor to an offscreen buffer.
 * The actors' buffers blit to the global buffer which then gets blitted to screen.
 * This double layer system is necessary for set at, where Glottis and the Albinizod
 * are drawn to the clean buffer but at different times.
 *
 * If you change the clean system check with the sets dd, at and with the trail of flowers
 * in sh or zw.
 */
void Lua_V1::ActorToClean() {
	lua_Object actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}

	Actor *actor = getactor(actorObj);
	actor->drawToCleanBuffer();
}

void Lua_V1::IsActorMoving() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	pushbool(actor->isWalking());
}

void Lua_V1::IsActorResting() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	// FIXME verify if exist one flag for resting mode
	pushbool(!(actor->isWalking() || actor->isTurning()));
}

/* Get the location of one of the actor's nodes, this is
 * used by Glottis to watch where Manny is located in
 * order to hand him the work order.  This function is
 * also important for when Velasco hands Manny the logbook
 * in Rubacava. It is also used for calculating many positions
 * passed to ActorLookAt.
 */
void Lua_V1::GetActorNodeLocation() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object nodeObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	if (!lua_isnumber(nodeObj))
		return;

	Actor *actor = getactor(actorObj);
	if (!actor->getCurrentCostume() || !actor->getCurrentCostume()->getModelNodes())
		return;

	int nodeId = (int)lua_getnumber(nodeObj);

	ModelNode *allNodes = actor->getCurrentCostume()->getModelNodes();
	ModelNode *node = allNodes + nodeId;

	node->_needsUpdate = true;
	ModelNode *root = node;
	while (root->_parent) {
		root = root->_parent;
		root->_needsUpdate = true;
	}

	Math::Matrix4 matrix;
	matrix.setPosition(actor->getPos());
	matrix.buildFromEuler(actor->getYaw(), actor->getPitch(), actor->getRoll(), Math::EO_ZXY);
	root->setMatrix(matrix);
	root->update();

	Math::Vector3d pos(node->_pivotMatrix.getPosition());
	lua_pushnumber(pos.x());
	lua_pushnumber(pos.y());
	lua_pushnumber(pos.z());
}

void Lua_V1::SetActorWalkDominate() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object modeObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	bool mode = lua_isnil(modeObj) != 0;
	Actor *actor = getactor(actorObj);
	actor->setRunning(mode);
}

void Lua_V1::SetActorColormap() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object nameObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	if (lua_isstring(nameObj)) {
		const char *name = lua_getstring(nameObj);
		actor->setColormap(name);
	} else if (lua_isnil(nameObj)) {
		error("SetActorColormap: implement remove cmap");
		// remove ?
	}
}

void Lua_V1::TurnActor() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object dirObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	if (!lua_isnumber(dirObj))
		return;

	Actor *actor = getactor(actorObj);
	int dir = (int)lua_getnumber(dirObj);
	// TODO verify. need clear mode walking
	actor->turn(dir);
}

void Lua_V1::PushActorCostume() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object nameObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	if (!lua_isstring(nameObj))
		return;

	Actor *actor = getactor(actorObj);
	const char *costumeName = lua_getstring(nameObj);
	actor->pushCostume(costumeName);
}

void Lua_V1::SetActorCostume() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object costumeObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	if (lua_isnil(costumeObj)) {
		actor->clearCostumes();
		pushbool(true);
		return;
	}
	if (!lua_isstring(costumeObj)) {
		pushbool(false);
		return;
	}

	const char *costumeName = lua_getstring(costumeObj);
	actor->setCostume(costumeName);
	pushbool(true);
}

void Lua_V1::GetActorCostume() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object costumeObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}

	Actor *actor = getactor(actorObj);
	Costume *costume = actor->getCurrentCostume();
	if (lua_isnil(costumeObj)) {
		// dummy
	} else if (lua_isnumber(costumeObj)) {
/*		int num = (int)lua_getnumber(costumeObj);*/
		error("GetActorCostume: implement number Id");
	} else
		return;

	if (costume)
		lua_pushstring(costume->getFilename().c_str());
	else
		lua_pushnil();
}

void Lua_V1::PopActorCostume() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	if (actor->getCurrentCostume()) {
		lua_pushstring(actor->getCurrentCostume()->getFilename().c_str());
		actor->popCostume();
	} else
		lua_pushnil();
}

void Lua_V1::GetActorCostumeDepth() {
	lua_Object actorObj = lua_getparam(1);
	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}

	Actor *actor = getactor(actorObj);
	lua_pushnumber(actor->getCostumeStackDepth());
}

void Lua_V1::PrintActorCostumes() {
	// dummy
}

void Lua_V1::LoadCostume() {
	lua_Object nameObj = lua_getparam(1);
	if (lua_isstring(nameObj)) {
		// FIXME disable loading costume due creating issue with colormap, this opcode is unknown purpose
		//const char *name = lua_getstring(nameObj);
		//g_resourceloader->loadCostume(name, NULL);
	} else
		lua_pushnil();
}

void Lua_V1::PlayActorChore() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object choreObj = lua_getparam(2);
	lua_Object costumeObj = lua_getparam(3);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	Costume *costume;
	if (!findCostume(costumeObj, actor, &costume))
		return;

	if (!lua_isnumber(choreObj)) {
		lua_pushnil();
		return;
	}
	int chore = (int)lua_getnumber(choreObj);

	if (!costume) {
		costume = actor->getCurrentCostume();
	}
	if (!costume) {
		lua_pushnil();
		return;
	}

	costume->playChore(chore);
	pushbool(true);
}

void Lua_V1::CompleteActorChore() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object choreObj = lua_getparam(2);
	lua_Object costumeObj = lua_getparam(3);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	Costume *costume;
	if (!findCostume(costumeObj, actor, &costume))
		return;

	if (!lua_isnumber(choreObj)) {
		lua_pushnil();
		return;
	}
	int chore = (int)lua_getnumber(choreObj);

	if (!costume) {
		costume = actor->getCurrentCostume();
	}
	if (!costume) {
		lua_pushnil();
		return;
	}

	costume->setChoreLastFrame(chore);
	pushbool(true);
}

void Lua_V1::PlayActorChoreLooping() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object choreObj = lua_getparam(2);
	lua_Object costumeObj = lua_getparam(3);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	Costume *costume;
	if (!findCostume(costumeObj, actor, &costume))
		return;

	if (!lua_isnumber(choreObj)) {
		lua_pushnil();
		return;
	}
	int chore = (int)lua_getnumber(choreObj);

	if (!costume) {
		costume = actor->getCurrentCostume();
	}
	if (!costume) {
		lua_pushnil();
		return;
	}

	costume->playChoreLooping(chore);
	pushbool(true);
}

void Lua_V1::SetActorChoreLooping() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object choreObj = lua_getparam(2);
	lua_Object costumeObj = lua_getparam(4);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	Costume *costume;
	if (!findCostume(costumeObj, actor, &costume))
		return;

	if (!costume) {
		costume = actor->getCurrentCostume();
	}
	if (!costume)
		return;

	if (lua_isnumber(choreObj)) {
		int chore = (int)lua_getnumber(choreObj);
		costume->setChoreLooping(chore, getbool(3));
	} else if (lua_isnil(choreObj)) {
		error("SetActorChoreLooping: implement nil case");
	}
}

void Lua_V1::StopActorChore() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object choreObj = lua_getparam(2);
	lua_Object costumeObj = lua_getparam(3);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	Costume *costume;
	if (!findCostume(costumeObj, actor, &costume))
		return;

	if (!costume) {
		costume = actor->getCurrentCostume();
	}
	if (!costume)
		return;

	if (lua_isnumber(choreObj)) {
		int chore = (int)lua_getnumber(choreObj);
		costume->stopChore(chore);
	} else if (lua_isnil(choreObj)) {
		costume->stopChores();
	}
}

void Lua_V1::FadeOutChore() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object costumeObj = lua_getparam(2);
	lua_Object choreObj = lua_getparam(3);
	lua_Object timeObj = lua_getparam(4);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	Costume *costume;
	if (!findCostume(costumeObj, actor, &costume))
		return;

	if (!costume) {
		costume = actor->getCurrentCostume();
	}
	if (!costume)
		return;

	if (lua_isnumber(choreObj)) {
		int chore = (int)lua_getnumber(choreObj);
		int time = (int)lua_getnumber(timeObj);

		costume->fadeChoreOut(chore, time);
	}
}

void Lua_V1::FadeInChore() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object costumeObj = lua_getparam(2);
	lua_Object choreObj = lua_getparam(3);
	lua_Object timeObj = lua_getparam(4);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	Costume *costume;
	if (!findCostume(costumeObj, actor, &costume))
		return;

	if (!costume) {
		costume = actor->getCurrentCostume();
	}
	if (!costume)
		return;

	if (lua_isnumber(choreObj)) {
		int chore = (int)lua_getnumber(choreObj);
		int time = (int)lua_getnumber(timeObj);

		costume->fadeChoreIn(chore, time);
	}
}

void Lua_V1::IsActorChoring() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object choreObj = lua_getparam(2);
	lua_Object costumeObj = lua_getparam(4);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);

	Costume *costume;
	if (!findCostume(costumeObj, actor, &costume))
		return;

	if (!costume) {
		costume = actor->getCurrentCostume();
	}
	if (!costume) {
		lua_pushnil();
		return;
	}

	bool excludeLoop = getbool(3);
	if (lua_isnumber(choreObj)) {
		int chore = (int)lua_getnumber(choreObj);
		if (costume->isChoring(chore, excludeLoop) != -1) {
			lua_pushobject(choreObj);
			pushbool(true);
		} else
			lua_pushnil();
		return;
	} else if (lua_isnil(choreObj)) {
		for (int i = 0; i < costume->getNumChores(); i++) {
			int chore = costume->isChoring(i, excludeLoop);
			if (chore != -1) {
				// Ignore talk chores.
				bool isTalk = false;
				for (int j = 0; j < 10; j++) {
					if (costume == actor->getTalkCostume(j) && actor->getTalkChore(j) == chore) {
						isTalk = true;
						break;
					}
				}
				if (isTalk)
					continue;

				lua_pushnumber(chore);
				pushbool(true);
				return;
			}
		}
	}

	lua_pushnil();
}

void Lua_V1::ActorLookAt() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object xObj = lua_getparam(2);
	lua_Object yObj = lua_getparam(3);
	lua_Object zObj = lua_getparam(4);
	lua_Object rateObj = lua_getparam(5);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;
	Actor *actor = getactor(actorObj);
	if (!actor->getCurrentCostume())
		return;

	if (lua_isnumber(rateObj))
		actor->setLookAtRate(lua_getnumber(rateObj));

	// Look at nothing
	if (lua_isnil(xObj)) {
		if (actor->isLookAtVectorZero())
			return;

		actor->setLookAtVectorZero();
		actor->setLooking(false);
		// FIXME: When grabbing Chepito lua_getnumber(yObj) returns -3.50214
		// which doesn't make any sense. I suspect that is a bug in Lua, since
		// i couldn't find any call to manny:head_look_at(nil, -3.50214) while
		// there are some calls to glottis:setpos(-0.120987, -3.50214, 0).
		// The same number, strange indeed eh?
		if (lua_isnumber(yObj) && lua_getnumber(yObj) > 0)
			actor->setLookAtRate(lua_getnumber(yObj));
		return;
	} else if (lua_isnumber(xObj)) { // look at xyz
		float fY;
		float fZ;

		float fX = lua_getnumber(xObj);

		if (lua_isnumber(yObj))
			fY = lua_getnumber(yObj);
		else
			fY = 0.0f;

		if (lua_isnumber(zObj))
			fZ = lua_getnumber(zObj);
		else
			fZ = 0.0f;

		Math::Vector3d vector;
		vector.set(fX, fY, fZ);
		actor->setLookAtVector(vector);

		if (lua_isnumber(rateObj))
			actor->setLookAtRate(lua_getnumber(rateObj));
	} else if (lua_isuserdata(xObj) && lua_tag(xObj) == MKTAG('A','C','T','R')) { // look at another actor
		Actor *lookedAct = getactor(xObj);
		actor->setLookAtVector(lookedAct->getHeadPos());

		if (lua_isnumber(yObj))
			actor->setLookAtRate(lua_getnumber(yObj));
	} else {
		return;
	}

	actor->setLooking(true);
}

/* Turn the actor to a point specified in the 3D space,
 * this should not have the actor look toward the point
 * but should rotate the entire actor toward it.
 * It does not however make the actor slowly turn the next
 * times update() is called on it. It does make it turn
 * slightly, by the amount given by its turn rate, and its
 * effect is immediate.
 */
void Lua_V1::TurnActorTo() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object xObj = lua_getparam(2);
	lua_Object yObj = lua_getparam(3);
	lua_Object zObj = lua_getparam(4);
	float x, y, z;

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);

	if (lua_isuserdata(xObj) && lua_tag(xObj) == MKTAG('A','C','T','R')) {
		Actor *destActor = getactor(xObj);
		const Math::Vector3d &pos = destActor->getWorldPos();
		x = pos.x();
		y = pos.y();
		z = pos.z();
	} else {
		x = lua_getnumber(xObj);
		y = lua_getnumber(yObj);
		z = lua_getnumber(zObj);
	}

	Math::Vector3d turnToVector(x, y, z);
	// Return true if the actor is still turning
	// This allows manny to have the right yaw when he exits the elevator in the garage
	pushbool(!actor->singleTurnTo(turnToVector));
}

void Lua_V1::PointActorAt() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object xObj = lua_getparam(2);
	lua_Object yObj = lua_getparam(3);
	lua_Object zObj = lua_getparam(4);
	float x, y, z;

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);

	if (lua_isuserdata(xObj) && lua_tag(xObj) == MKTAG('A','C','T','R')) {
		Actor *destActor = getactor(xObj);
		const Math::Vector3d &pos = destActor->getPos();
		x = pos.x();
		y = pos.y();
		z = pos.z();
	} else {
		x = lua_getnumber(xObj);
		y = lua_getnumber(yObj);
		z = lua_getnumber(zObj);
	}

	// Find the vector pointing from the actor to the desired location
	Math::Vector3d turnToVector(x, y, z);
	actor->setRot(turnToVector);
}

void Lua_V1::WalkActorVector() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object actor2Obj = lua_getparam(2);
//	lua_Object xObj = lua_getparam(3);
//	lua_Object yObj = lua_getparam(4);
//	lua_Object zObj = lua_getparam(5);
//	lua_Object param6Obj = lua_getparam(6);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R') ||
			!lua_isuserdata(actor2Obj) || lua_tag(actor2Obj) != MKTAG('A','C','T','R'))
		return;

//	Actor *actor = static_cast<Actor *>(lua_getuserdata(actorObj));
	Actor *actor2 = getactor(actor2Obj);

	// TODO whole below part need rewrote to much original
	float moveHoriz, moveVert;

	// Third option is the "left/right" movement
	moveHoriz = luaL_check_number(3);
	// Fourth Option is the "up/down" movement
	moveVert = luaL_check_number(4);

	// Get the direction the camera is pointing
	Math::Vector3d cameraVector = g_grim->getCurrSet()->getCurrSetup()->_interest - g_grim->getCurrSet()->getCurrSetup()->_pos;
	// find the angle the camera direction is around the unit circle
	Math::Angle cameraYaw = cameraVector.unitCircleAngle();

	// Handle the turning
	Math::Vector3d adjustVector(moveHoriz, moveVert, 0);
	// find the angle the adjust vector is around the unit circle
	Math::Angle adjustYaw = adjustVector.unitCircleAngle();

	Math::Angle yaw = cameraYaw + adjustYaw;
	// yaw is offset from forward by 180 degrees
	yaw -= 180.0f;

	// set the new direction or walk forward
	if (actor2->getYaw() != yaw)
		actor2->turnTo(0, yaw, 0);
	else
		actor2->walkForward();
}

/* Set the pitch of the actor to the requested value,
 * this will rotate an actor toward/away from the ground.
 * This is used when Glottis runs over the signpost in
 * the Petrified Forest
 */
void Lua_V1::SetActorPitch() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object pitchObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	float pitch = lua_getnumber(pitchObj);
	actor->setRot(pitch, actor->getYaw(), actor->getRoll());
}

void Lua_V1::SetActorLookRate() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object rateObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	if (!lua_isnumber(rateObj))
		return;

	Actor *actor = getactor(actorObj);
	if (!actor->getCurrentCostume())
		return;

	float rate = lua_getnumber(rateObj);
	actor->setLookAtRate(rate);
}

void Lua_V1::GetActorLookRate() {
	lua_Object actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	if (!actor->getCurrentCostume())
		lua_pushnil();
	else
		lua_pushnumber(actor->getLookAtRate());
}

void Lua_V1::SetActorHead() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object joint1Obj = lua_getparam(2);
	lua_Object joint2Obj = lua_getparam(3);
	lua_Object joint3Obj = lua_getparam(4);
	lua_Object maxRollObj = lua_getparam(5);
	lua_Object maxPitchObj = lua_getparam(6);
	lua_Object maxYawObj = lua_getparam(7);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;
	if (!lua_isnumber(joint1Obj) || !lua_isnumber(joint2Obj) || !lua_isnumber(joint3Obj) ||
			!lua_isnumber(maxRollObj) || !lua_isnumber(maxPitchObj) || !lua_isnumber(maxYawObj))
		return;

	Actor *actor = getactor(actorObj);
	int joint1 = (int)lua_getnumber(joint1Obj);
	int joint2 = (int)lua_getnumber(joint2Obj);
	int joint3 = (int)lua_getnumber(joint3Obj);
	float maxRoll = lua_getnumber(maxRollObj);
	float maxPitch = lua_getnumber(maxPitchObj);
	float maxYaw = lua_getnumber(maxYawObj);

	actor->setHead(joint1, joint2, joint3, maxRoll, maxPitch, maxYaw);
}

void Lua_V1::PutActorAtInterest() {
	lua_Object actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	Set *scene = g_grim->getCurrSet();
	if (!scene)
		return;

	Math::Vector3d p = scene->getCurrSetup()->_interest;
	Math::Vector3d resultPt = p;
	float minDist = -1.f;

	for (int i = 0; i < scene->getSectorCount(); ++i) {
		Sector *sector = scene->getSectorBase(i);
		if (sector->getType() != Sector::WalkType || !sector->isVisible())
			continue;

		Math::Vector3d closestPt = sector->getClosestPoint(p);
		if (scene->findPointSector(closestPt, Sector::HotType))
			continue;
		float thisDist = (closestPt - p).getMagnitude();
		if (minDist < 0 || thisDist < minDist) {
			resultPt = closestPt;
			minDist = thisDist;
		}
	}

	actor->setPos(resultPt);
}

void Lua_V1::SetActorFollowBoxes() {
	lua_Object actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

	Actor *actor = getactor(actorObj);
	actor->setFollowBoxes(getbool(2));
}

void Lua_V1::SetActorConstrain() {
	lua_Object actorObj = lua_getparam(1);
//	lua_Object constrainObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R'))
		return;

//	Actor *actor = static_cast<Actor *>(lua_getuserdata(actorObj));
//	bool constrain = !lua_isnil(constrainObj);

	// FIXME that below should be enabled, but for now it's disabled realated to
	// above func SetActorFollowBoxes.
//	actor->setConstrain(constrain);
}

void Lua_V1::GetVisibleThings() {
	lua_Object actorObj = lua_getparam(1);
	Actor *actor = nullptr;
	if (lua_isnil(actorObj)) {
		actor = g_grim->getSelectedActor();
		if (!actor)
			return;
	} else if (lua_isuserdata(actorObj) && lua_tag(actorObj) == MKTAG('A','C','T','R')) {
		actor = getactor(actorObj);
	}
	assert(actor);

	lua_Object result = lua_createtable();

	// TODO verify code below
	if (actor->isInSet(g_grim->getCurrSet()->getName())) {
		foreach (Actor *a, g_grim->getActiveActors()) {
			// Consider the active actor visible
			if (actor == a || actor->getYawTo(a) < 90) {
				lua_pushobject(result);
				lua_pushusertag(a->getId(), MKTAG('A','C','T','R'));
				lua_pushnumber(1);
				lua_settable();
			}
		}
	}
	lua_pushobject(result);
}

void Lua_V1::SetShadowColor() {
	int r = (int)lua_getnumber(lua_getparam(1));
	int g = (int)lua_getnumber(lua_getparam(2));
	int b = (int)lua_getnumber(lua_getparam(3));

	g_driver->setShadowColor(r, g, b);
}

void Lua_V1::KillActorShadows() {
	lua_Object actorObj = lua_getparam(1);

	if (!lua_isuserdata(actorObj) || lua_tag(actorObj) != MKTAG('A','C','T','R')) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);
	actor->clearShadowPlanes();
}

void Lua_V1::SetActiveShadow() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object shadowIdObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || actorObj == LUA_NOOBJECT) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);
	int shadowId = (int)lua_getnumber(shadowIdObj);
	actor->setActiveShadow(shadowId);
}

void Lua_V1::SetActorShadowPoint() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object xObj = lua_getparam(2);
	lua_Object yObj = lua_getparam(3);
	lua_Object zObj = lua_getparam(4);

	if (!lua_isuserdata(actorObj) || actorObj == LUA_NOOBJECT) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);
	float x = lua_getnumber(xObj);
	float y = lua_getnumber(yObj);
	float z = lua_getnumber(zObj);

	actor->setShadowPoint(Math::Vector3d(x, y, z));
}

void Lua_V1::SetActorShadowPlane() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object nameObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || actorObj == LUA_NOOBJECT) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);
	const char *name = lua_getstring(nameObj);

	actor->setShadowPlane(name);
}

void Lua_V1::AddShadowPlane() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object nameObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || actorObj == LUA_NOOBJECT) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);
	const char *name = lua_getstring(nameObj);

	actor->addShadowPlane(name);
}

void Lua_V1::ActivateActorShadow() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object shadowIdObj = lua_getparam(2);
	lua_Object stateObj = lua_getparam(3);

	if (!lua_isuserdata(actorObj) || actorObj == LUA_NOOBJECT) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);
	int shadowId = (int)lua_getnumber(shadowIdObj);
	bool state = !lua_isnil(stateObj);

	actor->setActivateShadow(shadowId, state);
	g_grim->flagRefreshShadowMask(true);
}

void Lua_V1::SetActorShadowValid() {
	lua_Object actorObj = lua_getparam(1);
	lua_Object numObj = lua_getparam(2);

	if (!lua_isuserdata(actorObj) || actorObj == LUA_NOOBJECT) {
		lua_pushnil();
		return;
	}
	Actor *actor = getactor(actorObj);
	int valid = (int)lua_getnumber(numObj);

	warning("SetActorShadowValid(%d) unknown purpose", valid);

	actor->setShadowValid(valid);
}

void Lua_V1::GetActorRect() {
	// This function is only used in one place and it is only checked if the return value is nil or not.
	// Looking at how it is used I don't see any reason to ever return nil.
	// If it does not return nil, the light that comes out of Chepito's lantern move properly.
	lua_pushnumber(1);
}

} // end of namespace Grim