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cyphesis/rulesets/Plant.cpp

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// Cyphesis Online RPG Server and AI Engine
// Copyright (C) 2000,2001 Alistair Riddoch
//
// 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 "Plant.h"
#include "StatusProperty.h"
#include "BBoxProperty.h"
#include "AreaProperty.h"
#include "DensityProperty.h"
#include "Vector3Property.h"
#include "physics/Shape.h"
#include "common/const.h"
#include "common/debug.h"
#include "common/random.h"
#include "common/TypeNode.h"
#include "common/Eat.h"
#include "common/Tick.h"
#include "common/Update.h"
#include "BiomassProperty.h"
#include <wfmath/atlasconv.h>
#include <wfmath/MersenneTwister.h>
#include <Atlas/Objects/Operation.h>
#include <Atlas/Objects/Anonymous.h>
using Atlas::Message::Element;
using Atlas::Objects::Root;
using Atlas::Objects::Operation::Create;
using Atlas::Objects::Operation::Eat;
using Atlas::Objects::Operation::Set;
using Atlas::Objects::Operation::Move;
using Atlas::Objects::Operation::Tick;
using Atlas::Objects::Operation::Update;
using Atlas::Objects::Entity::Anonymous;
static const bool debug_flag = false;
Plant::Plant(const std::string & id, long intId) :
Thing(id, intId)
{
}
Plant::~Plant()
{
}
/// \brief Generate operations to drop a fruit.
///
void Plant::dropFruit(OpVector & res, const std::string& fruitName)
{
debug(std::cout << "Dropping a fruit from "
<< m_type << " plant." << std::endl << std::flush;);
float height = m_location.bBox().highCorner().y();
float rx = m_location.pos().x() + uniform( height,
-height);
float rz = m_location.pos().z() + uniform( height,
-height);
Anonymous fruit_arg;
fruit_arg->setParent(fruitName);
Location floc(m_location.m_loc, Point3D(rx, 0, rz));
floc.addToEntity(fruit_arg);
Create create;
create->setTo(getId());
create->setArgs1(fruit_arg);
res.push_back(create);
}
void Plant::NourishOperation(const Operation & op, OpVector & res)
{
debug(std::cout << "Plant::Nourish(" << getId() << "," << m_type << ")"
<< std::endl << std::flush;);
if (op->getArgs().empty()) {
error(op, "Nourish has no argument", res, getId());
return;
}
const Root & arg = op->getArgs().front();
Element mass;
if (arg->copyAttr("mass", mass) != 0 || !mass.isNum()) {
return;
}
if (!m_nourishment) {
m_nourishment = mass.asNum();
} else {
*m_nourishment += mass.asNum();
}
debug(std::cout << "Nourishment: " << *m_nourishment
<< std::endl << std::flush;);
}
void Plant::TickOperation(const Operation & op, OpVector & res)
{
debug(std::cout << "Plant::Tick(" << getId() << "," << m_type << ")"
<< std::endl << std::flush;);
// Use a value seeded from the ID, so it's always the same.
WFMath::MTRand::instance.seed(getIntId());
double jitter = WFMath::MTRand::instance.rand() * 10.;
Tick tick_op;
tick_op->setTo(getId());
tick_op->setFutureSeconds(consts::basic_tick * m_speed + jitter);
res.push_back(tick_op);
// The update op will broadcast notification for all properties that
// are marked flag_unsent
Update update;
update->setTo(getId());
res.push_back(update);
//Only do nourishment check if we've had a chance to send an Eat op.
//Else we'll be shrinking each time the server is restarted.
if (m_nourishment) {
auto status = requirePropertyClassFixed<StatusProperty>(1);
double & new_status = status->data();
status->addFlags(flag_unsent);
if (*m_nourishment <= 0) {
debug(std::cout << "No nourishment; shrinking."
<< std::endl << std::flush;);
new_status -= 0.1;
} else {
new_status += 0.1;
if (new_status > 1.) {
new_status = 1.;
}
auto mass_prop = requirePropertyClass<Property<double> >("mass", 0.);
auto biomass = modPropertyClassFixed<BiomassProperty>();
auto box_property = requirePropertyClassFixed<BBoxProperty>();
BBox & bbox = m_location.m_bBox;
double & mass = mass_prop->data();
double old_mass = mass;
auto densityProperty = getPropertyClassFixed<DensityProperty>();
if (densityProperty) {
//There's a density property; we shouldn't change mass directly, instead we should change the size of the entity.
double newMass = mass + *m_nourishment;
//Check if there's a maxsize prop, otherwise check with maxmass
auto maxSizeProp = getPropertyClass<Vector3Property>("maxsize");
if (maxSizeProp && maxSizeProp->data().isValid() && bbox.isValid() && densityProperty->data() != 0) {
WFMath::Vector<3> volumeVector = bbox.highCorner() - bbox.lowCorner();
float volume = volumeVector.x() * volumeVector.y() * volumeVector.z();
float volumeNew = newMass / densityProperty->data();
float scale = volumeNew / volume;
boxScale(bbox, scale);
//We've scaled the bbox; now check if it exceeds the max size.
//0 is ignored.
WFMath::Vector<3> newSize = bbox.highCorner() - bbox.lowCorner();
const WFMath::Vector<3>& maxSize = maxSizeProp->data();
scale = 1.0f;
if (maxSize.x() != 0 && newSize.x() > maxSize.x()) {
scale = std::min(scale, maxSize.x() / newSize.x());
}
if (maxSize.y() != 0 && newSize.y() > maxSize.y()) {
scale = std::min(scale, maxSize.y() / newSize.y());
}
if (maxSize.z() != 0 && newSize.z() > maxSize.z()) {
scale = std::min(scale, maxSize.z() / newSize.z());
}
//New box needs to be scaled again to fit with max size.
if (scale != 1.0f) {
boxScale(bbox, scale);
}
box_property->data() = bbox;
box_property->apply(this);
box_property->addFlags(flag_unsent);
scaleArea();
} else {
Element maxmass_attr;
if (getAttrType("maxmass", maxmass_attr, Element::TYPE_FLOAT) == 0) {
newMass = std::min(newMass, maxmass_attr.Float());
}
if (old_mass != 0 && bbox.isValid()) {
float scale = (float)(newMass / old_mass);
float height_scale = std::pow(scale, 0.33333f);
debug(std::cout << "scale " << scale << ", " << height_scale
<< std::endl << std::flush;);
debug(std::cout << "Old " << bbox << std::endl << std::flush;);
boxScale(bbox, scale);
debug(std::cout << "New " << bbox << std::endl << std::flush;);
box_property->data() = bbox;
box_property->apply(this);
box_property->addFlags(flag_unsent);
scaleArea();
}
}
if (biomass != nullptr) {
biomass->set(mass);
biomass->addFlags(flag_unsent);
}
} else {
mass += *m_nourishment;
Element maxmass_attr;
if (getAttrType("maxmass", maxmass_attr, Element::TYPE_FLOAT) == 0) {
mass = std::min(mass, maxmass_attr.Float());
}
if (biomass != nullptr) {
biomass->set(mass);
biomass->addFlags(flag_unsent);
}
//TODO: we need to sort out how to handle mass and biomass
mass_prop->set(mass);
mass_prop->addFlags(flag_unsent);
// FIXME Handle the bbox without needing the Set operation.
if (old_mass != 0 && bbox.isValid()) {
float scale = (float)(mass / old_mass);
debug(std::cout << "Old " << bbox << std::endl << std::flush;);
boxScale(bbox, scale);
debug(std::cout << "New " << bbox << std::endl << std::flush;);
box_property->data() = bbox;
box_property->apply(this);
box_property->addFlags(flag_unsent);
scaleArea();
}
}
*m_nourishment = 0;
}
status->apply(this);
}
if (m_location.m_loc != nullptr) {
Element mode_attr;
if (getAttrType("mode", mode_attr, Element::TYPE_STRING) == 0 && mode_attr.String() == "planted") {
//Only send eat ops if we're planted.
Eat eat_op;
eat_op->setTo(m_location.m_loc->getId());
res.push_back(eat_op);
}
//Initialize nourishment to zero once we've had a chance to sent our first Eat op.
if (!m_nourishment) {
m_nourishment = .0;
}
}
//Only handle fruits if the plant is of adult size.
Property<int> * fruits_prop = modPropertyType<int>("fruits");
if (fruits_prop != nullptr) {
Element sizeAdult;
if (getAttrType("sizeAdult", sizeAdult, Element::TYPE_FLOAT) == 0 ||
getAttrType("sizeAdult", sizeAdult, Element::TYPE_INT) == 0) {
//Only drop fruits if we're an adult
if (m_location.bBox().isValid() &&
(m_location.bBox().highCorner().y() >= sizeAdult.asNum())) {
handleFruiting(res, *fruits_prop);
}
}
}
}
void Plant::handleFruiting(OpVector & res, Property<int>& fruits_prop) {
Element fruitName;
if (getAttrType("fruitName", fruitName, Element::TYPE_STRING) != 0) {
return;
}
auto& fruits = fruits_prop.data();
Element fruitsChance;
if (getAttrType("fruitChance", fruitsChance, Element::TYPE_INT) == 0) {
//First check if we should drop fruits.
if (fruits > 0) {
//TODO: use a different attribute than fruitChance for this
if (randint(0, 100) < fruitsChance.Int()) {
fruits--;
fruits_prop.addFlags(flag_unsent);
dropFruit(res, fruitName.String());
}
}
//Then see if we should increase the number of fruits.
Element fruitsMax;
//Increase fruits if there's either no max value, or we haven't reached it yet.
if (getAttrType("fruitsMax", fruitsMax, Element::TYPE_INT) != 0 || fruitsMax.Int() > fruits_prop.data()) {
//FruitChance is between [0..100] (percentage).
if (randint(0, 100) < fruitsChance.Int()) {
fruits++;
fruits_prop.addFlags(flag_unsent);
}
}
}
}
void Plant::TouchOperation(const Operation & op, OpVector & res)
{
Element sizeAdult;
if (getAttrType("sizeAdult", sizeAdult, Element::TYPE_FLOAT) == 0
|| getAttrType("sizeAdult", sizeAdult, Element::TYPE_INT) == 0) {
//Only drop fruits if we're an adult
if (m_location.bBox().isValid()
&& (m_location.bBox().highCorner().y() >= sizeAdult.asNum())) {
Property<int> * fruits_prop = modPropertyType<int>("fruits");
if (fruits_prop != nullptr) {
if (fruits_prop->data() <= 0) {
return;
}
Element fruitName;
if (getAttrType("fruitName", fruitName, Element::TYPE_STRING) != 0) {
return;
}
Element fruitsChance;
if (getAttrType("fruitChance", fruitsChance, Element::TYPE_INT) != 0) {
return;
}
//TODO: use a different attribute than fruitChance for this
if (randint(0, 100) < fruitsChance.Int()) {
fruits_prop->data()--;
fruits_prop->addFlags(flag_unsent);
dropFruit(res, fruitName.String());
Update update;
update->setTo(getId());
res.push_back(update);
}
}
}
}
}
void Plant::scaleArea() {
static float AREA_SCALING_FACTOR=3.0f;
const WFMath::AxisBox<3>& bbox = m_location.bBox();
if (bbox.isValid()) {
//If there's an area we need to scale that with the bbox
auto area_property = modPropertyClassFixed<AreaProperty>();
if (area_property != nullptr) {
WFMath::AxisBox<2> footprint = area_property->shape()->footprint();
//We'll make it so that the footprint of the area is AREA_SCALING_FACTOR times the footprint of the bbox
auto area_radius = footprint.boundingSphere().radius();
if (area_radius != 0.0f) {
//We're only interested in the horizontal radius of the plant
WFMath::AxisBox<2> flat_bbox(WFMath::Point<2>(bbox.lowerBound(0), bbox.lowerBound(2)), WFMath::Point<2>(bbox.upperBound(0), bbox.upperBound(2)));
auto plant_radius = flat_bbox.boundingSphere().radius();
auto desired_radius = plant_radius * AREA_SCALING_FACTOR;
auto scaling_factor = desired_radius / area_radius;
//No need to alter if the scale is the same.
//Also don't scale the unless the difference is at least 10% in either direction.
//The reason for this is that we don't want to alter the area each tick since
//the client often must perform a sometimes expensive material regeneration
//calculation every time a terrain area changes. With many plants this runs the
//risk of bogging down the client then.
if (!WFMath::Equal(scaling_factor, 1.0f)
&& (scaling_factor > 1.1f || scaling_factor < 0.9f)) {
std::unique_ptr<Form<2>> new_area_shape(
area_property->shape()->copy());
new_area_shape->scale(scaling_factor);
Atlas::Message::MapType shapeElement;
new_area_shape->toAtlas(shapeElement);
Atlas::Message::Element areaElement;
area_property->get(areaElement);
areaElement.asMap()["shape"] = shapeElement;
area_property->set(areaElement);
area_property->apply(this);
area_property->addFlags(flag_unsent);
}
}
}
}
}
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