+#include "Composition.hpp"
#include "Creature.hpp"
-#include "Need.hpp"
+#include "Genome.hpp"
+#include "Memory.hpp"
+#include "NameGenerator.hpp"
#include "Situation.hpp"
+#include "Steering.hpp"
+#include "BlobBackgroundTask.hpp"
+#include "Goal.hpp"
+#include "IdleGoal.hpp"
#include "../app/Assets.hpp"
+#include "../math/const.hpp"
#include "../world/Body.hpp"
#include "../world/Planet.hpp"
+#include "../world/Simulation.hpp"
#include "../world/TileType.hpp"
+#include <algorithm>
+#include <sstream>
#include <glm/gtx/transform.hpp>
+#include <glm/gtx/vector_angle.hpp>
#include <iostream>
+#include <glm/gtx/io.hpp>
namespace blobs {
namespace creature {
-Creature::Creature()
-: name()
-, health(1.0)
-, needs()
+Composition::Composition()
+: components() {
+}
+
+Composition::~Composition() {
+}
+
+namespace {
+bool CompositionCompare(const Composition::Component &a, const Composition::Component &b) {
+ return b.value < a.value;
+}
+}
+
+void Composition::Add(int res, double amount) {
+ bool found = false;
+ for (auto &c : components) {
+ if (c.resource == res) {
+ c.value += amount;
+ found = true;
+ break;
+ }
+ }
+ if (!found) {
+ components.emplace_back(res, amount);
+ }
+ std::sort(components.begin(), components.end(), CompositionCompare);
+}
+
+bool Composition::Has(int res) const noexcept {
+ for (auto &c : components) {
+ if (c.resource == res) {
+ return true;
+ }
+ }
+ return false;
+}
+
+double Composition::Get(int res) const noexcept {
+ for (auto &c : components) {
+ if (c.resource == res) {
+ return c.value;
+ }
+ }
+ return 0.0;
+}
+
+
+Creature::Creature(world::Simulation &sim)
+: sim(sim)
+, name()
+, genome()
+, properties()
+, composition()
+, base_color(1.0)
+, highlight_color(0.0, 0.0, 0.0, 1.0)
+, mass(1.0)
+, size(1.0)
+, birth(sim.Time())
+, on_death()
+, removable(false)
+, stats()
+, memory(*this)
+, bg_task()
+, goals()
, situation()
+, steering(*this)
, vao() {
+ // all creatures avoid each other for now
+ steering.Separate(0.1, 1.5);
}
Creature::~Creature() {
}
+void Creature::AddMass(int res, double amount) {
+ composition.Add(res, amount);
+ double mass = 0.0;
+ double nonsolid = 0.0;
+ double volume = 0.0;
+ for (const auto &c : composition) {
+ mass += c.value;
+ volume += c.value / sim.Assets().data.resources[c.resource].density;
+ if (sim.Assets().data.resources[c.resource].state != world::Resource::SOLID) {
+ nonsolid += c.value;
+ }
+ }
+ Mass(mass);
+ Size(std::cbrt(volume));
+ highlight_color.a = nonsolid / mass;
+}
+
+void Creature::HighlightColor(const glm::dvec3 &c) noexcept {
+ highlight_color = glm::dvec4(c, highlight_color.a);
+}
+
+void Creature::Ingest(int res, double amount) noexcept {
+ // TODO: check foreign materials
+ // 10% stays in body
+ AddMass(res, amount * 0.1);
+}
+
+void Creature::Hurt(double amount) noexcept {
+ stats.Damage().Add(amount);
+ if (stats.Damage().Full()) {
+ std::cout << "[" << int(sim.Time()) << "s] " << name << " ";
+ if (stats.Breath().Full()) {
+ std::cout << "suffocated";
+ } else if (stats.Thirst().Full()) {
+ std::cout << "died of thirst";
+ } else if (stats.Hunger().Full()) {
+ std::cout << "starved to death";
+ } else {
+ std::cout << "succumed to wounds";
+ }
+ std::cout << std::endl;
+ Die();
+ }
+}
+
+void Creature::Die() noexcept {
+ goals.clear();
+ steering.Halt();
+ if (on_death) {
+ on_death(*this);
+ }
+ Remove();
+}
+
+double Creature::Age() const noexcept {
+ return sim.Time() - birth;
+}
+
+double Creature::AgeFactor(double peak) const noexcept {
+ // shifted inverse hermite, y = 1 - (3t² - 2t³) with t = normalized age - peak
+ // goes negative below -0.5 and starts to rise again above 1.0
+ double t = glm::clamp((Age() / properties.Lifetime()) - peak, -0.5, 1.0);
+ return 1.0 - (3.0 * t * t) + (2.0 * t * t * t);
+}
+
+double Creature::ExhaustionFactor() const noexcept {
+ return 1.0 - (glm::smoothstep(0.5, 1.0, stats.Exhaustion().value) * 0.5);
+}
+
+double Creature::FatigueFactor() const noexcept {
+ return 1.0 - (glm::smoothstep(0.5, 1.0, stats.Fatigue().value) * 0.5);
+}
+
+double Creature::Strength() const noexcept {
+ // TODO: replace all age factors with actual growth and decay
+ return properties.Strength() * ExhaustionFactor() * AgeFactor(0.25);
+}
+
+double Creature::Stamina() const noexcept {
+ return properties.Stamina() * ExhaustionFactor() * AgeFactor(0.25);
+}
+
+double Creature::Dexerty() const noexcept {
+ return properties.Dexerty() * ExhaustionFactor() * AgeFactor(0.25);
+}
+
+double Creature::Intelligence() const noexcept {
+ return properties.Intelligence() * FatigueFactor() * AgeFactor(0.25);
+}
+
+double Creature::Lifetime() const noexcept {
+ return properties.Lifetime();
+}
+
+double Creature::Fertility() const noexcept {
+ return properties.Fertility() * AgeFactor(0.25);
+}
+
+double Creature::Mutability() const noexcept {
+ return properties.Mutability();
+}
+
+double Creature::OffspringMass() const noexcept {
+ return properties.OffspringMass();
+}
+
+double Creature::OffspringChance() const noexcept {
+ return AgeFactor(0.25) * properties.Fertility() * (1.0 / 3600.0);
+}
+
+double Creature::MutateChance() const noexcept {
+ return GetProperties().Mutability() * (1.0 / 3600.0);
+}
+
+void Creature::AddGoal(std::unique_ptr<Goal> &&g) {
+ g->Enable();
+ goals.emplace_back(std::move(g));
+}
+
+namespace {
+
+bool GoalCompare(const std::unique_ptr<Goal> &a, const std::unique_ptr<Goal> &b) {
+ return b->Urgency() < a->Urgency();
+}
+
+}
void Creature::Tick(double dt) {
- for (Need &need : needs) {
- need.Tick(dt);
- if (!need.IsSatisfied()) {
- health = std::max(0.0, health - need.penalty * dt);
+ TickState(dt);
+ TickStats(dt);
+ TickBrain(dt);
+}
+
+void Creature::TickState(double dt) {
+ steering.MaxSpeed(Dexerty());
+ steering.MaxForce(Strength());
+ Situation::State state(situation.GetState());
+ Situation::Derivative a(Step(Situation::Derivative(), 0.0));
+ Situation::Derivative b(Step(a, dt * 0.5));
+ Situation::Derivative c(Step(b, dt * 0.5));
+ Situation::Derivative d(Step(c, dt));
+ Situation::Derivative f(
+ (1.0 / 6.0) * (a.vel + 2.0 * (b.vel + c.vel) + d.vel),
+ (1.0 / 6.0) * (a.acc + 2.0 * (b.acc + c.acc) + d.acc)
+ );
+ state.pos += f.vel * dt;
+ state.vel += f.acc * dt;
+ if (length2(state.vel) > 0.000001) {
+ glm::dvec3 nvel(normalize(state.vel));
+ double ang = angle(nvel, state.dir);
+ double turn_rate = PI * 0.5 * dt;
+ if (ang < turn_rate) {
+ state.dir = normalize(state.vel);
+ } else if (std::abs(ang - PI) < 0.001) {
+ state.dir = rotate(state.dir, turn_rate, world::Planet::SurfaceNormal(situation.Surface()));
+ } else {
+ state.dir = rotate(state.dir, turn_rate, normalize(cross(state.dir, nvel)));
+ }
+ }
+ situation.SetState(state);
+ stats.Exhaustion().Add(length(f.acc) * Mass() / Stamina() * dt);
+}
+
+Situation::Derivative Creature::Step(const Situation::Derivative &ds, double dt) const noexcept {
+ Situation::State s = situation.GetState();
+ s.pos += ds.vel * dt;
+ s.vel += ds.acc * dt;
+ return {
+ s.vel,
+ steering.Force(s) / Mass()
+ };
+}
+
+void Creature::TickStats(double dt) {
+ for (auto &s : stats.stat) {
+ s.Add(s.gain * dt);
+ }
+ stats.Breath().Add(stats.Breath().gain * stats.Exhaustion().value * dt);
+ // TODO: damage values depending on properties
+ if (stats.Breath().Full()) {
+ constexpr double dps = 1.0 / 4.0;
+ Hurt(dps * dt);
+ }
+ if (stats.Thirst().Full()) {
+ constexpr double dps = 1.0 / 32.0;
+ Hurt(dps * dt);
+ }
+ if (stats.Hunger().Full()) {
+ constexpr double dps = 1.0 / 128.0;
+ Hurt(dps * dt);
+ }
+}
+
+void Creature::TickBrain(double dt) {
+ bg_task->Tick(dt);
+ bg_task->Action();
+ memory.Tick(dt);
+ // do background stuff
+ if (goals.empty()) {
+ return;
+ }
+ for (auto &goal : goals) {
+ goal->Tick(dt);
+ }
+ // if active goal can be interrupted, check priorities
+ if (goals.size() > 1 && goals[0]->Interruptible()) {
+ std::sort(goals.begin(), goals.end(), GoalCompare);
+ }
+ goals[0]->Action();
+ for (auto goal = goals.begin(); goal != goals.end();) {
+ if ((*goal)->Complete()) {
+ goals.erase(goal);
+ } else {
+ ++goal;
}
}
}
glm::dmat4 Creature::LocalTransform() noexcept {
- // TODO: surface transform
- constexpr double half_height = 0.25;
+ const double half_size = size * 0.5;
const glm::dvec3 &pos = situation.Position();
- return glm::translate(glm::dvec3(pos.x, pos.y, pos.z + situation.GetPlanet().Radius() + half_height))
- * glm::scale(glm::dvec3(half_height, half_height, half_height));
+ const glm::dmat3 srf(world::Planet::SurfaceOrientation(situation.Surface()));
+ return glm::translate(glm::dvec3(pos.x, pos.y, pos.z + half_size))
+ * glm::rotate(glm::orientedAngle(-srf[2], situation.Heading(), srf[1]), srf[1])
+ * glm::dmat4(srf)
+ * glm::scale(glm::dvec3(half_size, half_size, half_size));
}
void Creature::BuildVAO() {
vao.Unbind();
}
-void Creature::Draw(app::Assets &assets, graphics::Viewport &viewport) {
+void Creature::Draw(graphics::Viewport &viewport) {
vao.Bind();
vao.DrawTriangles(6 * 6);
}
-void Spawn(Creature &c, world::Planet &p, app::Assets &assets) {
+void Spawn(Creature &c, world::Planet &p) {
p.AddCreature(&c);
- c.GetSituation().SetPlanetSurface(p, 0, glm::dvec3(0.0, 0.0, 0.0));
+ c.GetSituation().SetPlanetSurface(p, 0, p.TileCenter(0, p.SideLength() / 2, p.SideLength() / 2));
+ c.GetSituation().Heading(-world::Planet::SurfaceOrientation(0)[2]);
// probe surrounding area for common resources
int start = p.SideLength() / 2 - 2;
std::map<int, double> yields;
for (int y = start; y < end; ++y) {
for (int x = start; x < end; ++x) {
- const world::TileType &t = assets.data.tiles[p.TileAt(0, x, y).type];
+ const world::TileType &t = p.TypeAt(0, x, y);
for (auto yield : t.resources) {
yields[yield.resource] += yield.ubiquity;
}
int liquid = -1;
int solid = -1;
for (auto e : yields) {
- if (assets.data.resources[e.first].state == world::Resource::LIQUID) {
+ if (c.GetSimulation().Resources()[e.first].state == world::Resource::LIQUID) {
if (liquid < 0 || e.second > yields[liquid]) {
liquid = e.first;
}
- } else if (assets.data.resources[e.first].state == world::Resource::SOLID) {
+ } else if (c.GetSimulation().Resources()[e.first].state == world::Resource::SOLID) {
if (solid < 0 || e.second > yields[solid]) {
solid = e.first;
}
}
}
+ Genome genome;
+ genome.properties.Strength() = { 2.0, 0.1 };
+ genome.properties.Stamina() = { 4.0, 0.1 };
+ genome.properties.Dexerty() = { 2.0, 0.1 };
+ genome.properties.Intelligence() = { 1.0, 0.1 };
+ genome.properties.Lifetime() = { 480.0, 60.0 };
+ genome.properties.Fertility() = { 0.5, 0.03 };
+ genome.properties.Mutability() = { 1.0, 0.1 };
+ genome.properties.OffspringMass() = { 0.3, 0.02 };
+
+ glm::dvec3 color_avg(0.0);
+ double color_divisor = 0.0;
+
if (p.HasAtmosphere()) {
- std::cout << "require breathing " << assets.data.resources[p.Atmosphere()].label << std::endl;
- Need need;
- need.resource = p.Atmosphere();
- need.gain = 0.25;
- need.critical = 0.95;
- need.penalty = 0.1;
- c.AddNeed(need);
+ c.AddMass(p.Atmosphere(), 0.01);
+ color_avg += c.GetSimulation().Resources()[p.Atmosphere()].base_color * 0.1;
+ color_divisor += 0.1;
}
if (liquid > -1) {
- std::cout << "require drinking " << assets.data.resources[liquid].label << std::endl;
- Need need;
- need.resource = liquid;
- need.gain = 0.0001;
- need.critical = 0.95;
- need.penalty = 0.01;
- c.AddNeed(need);
+ c.AddMass(liquid, 0.3);
+ color_avg += c.GetSimulation().Resources()[liquid].base_color * 0.5;
+ color_divisor += 0.5;
}
if (solid > -1) {
- std::cout << "require eating " << assets.data.resources[solid].label << std::endl;
- Need need;
- need.resource = solid;
- need.gain = 0.00001;
- need.critical = 0.95;
- need.penalty = 0.001;
- c.AddNeed(need);
+ c.AddMass(solid, 0.1);
+ color_avg += c.GetSimulation().Resources()[solid].base_color;
+ color_divisor += 1.0;
+ }
+
+ if (color_divisor > 0.001) {
+ color_avg /= color_divisor;
+ }
+ glm::dvec3 hsl = rgb2hsl(color_avg);
+ genome.base_hue = { hsl.x, 0.01 };
+ genome.base_saturation = { hsl.y, 0.01 };
+ genome.base_lightness = { hsl.z, 0.01 };
+
+ genome.Configure(c);
+}
+
+void Genome::Configure(Creature &c) const {
+ c.GetGenome() = *this;
+
+ math::GaloisLFSR &random = c.GetSimulation().Assets().random;
+
+ c.GetProperties() = Instantiate(properties, random);
+
+ // TODO: derive stats from properties
+ c.GetStats().Damage().gain = (-1.0 / 100.0);
+ c.GetStats().Breath().gain = (1.0 / 5.0);
+ c.GetStats().Thirst().gain = (1.0 / 60.0);
+ c.GetStats().Hunger().gain = (1.0 / 200.0);
+ c.GetStats().Exhaustion().gain = (-1.0 / 100.0);
+ c.GetStats().Fatigue().gain = (-1.0 / 100.0);
+ c.GetStats().Boredom().gain = (1.0 / 300.0);
+
+ glm::dvec3 base_color(
+ std::fmod(base_hue.FakeNormal(random.SNorm()) + 1.0, 1.0),
+ glm::clamp(base_saturation.FakeNormal(random.SNorm()), 0.0, 1.0),
+ glm::clamp(base_lightness.FakeNormal(random.SNorm()), 0.0, 1.0)
+ );
+ glm::dvec3 highlight_color(
+ std::fmod(base_color.x + 0.5, 1.0),
+ 1.0 - base_color.y,
+ 1.0 - base_color.z
+ );
+ c.BaseColor(hsl2rgb(base_color));
+ c.HighlightColor(hsl2rgb(highlight_color));
+ c.SetBackgroundTask(std::unique_ptr<Goal>(new BlobBackgroundTask(c)));
+ c.AddGoal(std::unique_ptr<Goal>(new IdleGoal(c)));
+}
+
+
+void Split(Creature &c) {
+ Creature *a = new Creature(c.GetSimulation());
+ const Situation &s = c.GetSituation();
+ a->Name(c.GetSimulation().Assets().name.Sequential());
+ c.GetGenome().Configure(*a);
+ for (const auto &cmp : c.GetComposition()) {
+ a->AddMass(cmp.resource, cmp.value * 0.5);
+ }
+ s.GetPlanet().AddCreature(a);
+ // TODO: duplicate situation somehow
+ a->GetSituation().SetPlanetSurface(
+ s.GetPlanet(), s.Surface(),
+ s.Position() + glm::dvec3(0.0, a->Size() + 0.1, 0.0));
+ a->BuildVAO();
+ std::cout << "[" << int(c.GetSimulation().Time()) << "s] "
+ << a->Name() << " was born" << std::endl;
+
+ Creature *b = new Creature(c.GetSimulation());
+ b->Name(c.GetSimulation().Assets().name.Sequential());
+ c.GetGenome().Configure(*b);
+ for (const auto &cmp : c.GetComposition()) {
+ b->AddMass(cmp.resource, cmp.value * 0.5);
+ }
+ s.GetPlanet().AddCreature(b);
+ b->GetSituation().SetPlanetSurface(
+ s.GetPlanet(), s.Surface(),
+ s.Position() + glm::dvec3(0.0, b->Size() - 0.1, 0.0));
+ b->BuildVAO();
+ std::cout << "[" << int(c.GetSimulation().Time()) << "s] "
+ << b->Name() << " was born" << std::endl;
+
+ c.Die();
+}
+
+
+Memory::Memory(Creature &c)
+: c(c) {
+}
+
+Memory::~Memory() {
+}
+
+void Memory::Tick(double dt) {
+ Situation &s = c.GetSituation();
+ if (s.OnSurface()) {
+ TrackStay({ &s.GetPlanet(), s.Surface(), s.SurfacePosition() }, dt);
}
}
+void Memory::TrackStay(const Location &l, double t) {
+ const world::TileType &type = l.planet->TypeAt(l.surface, l.coords.x, l.coords.y);
+ auto entry = known_types.find(type.id);
+ if (entry != known_types.end()) {
+ if (c.GetSimulation().Time() - entry->second.last_been > c.GetProperties().Lifetime() * 0.1) {
+ // "it's been ages"
+ if (entry->second.time_spent > c.Age() * 0.25) {
+ // the place is very familiar
+ c.GetStats().Boredom().Add(-0.2);
+ } else {
+ // infrequent stays
+ c.GetStats().Boredom().Add(-0.1);
+ }
+ }
+ entry->second.last_been = c.GetSimulation().Time();
+ entry->second.last_loc = l;
+ entry->second.time_spent += t;
+ } else {
+ known_types.emplace(type.id, Stay{
+ c.GetSimulation().Time(),
+ l,
+ c.GetSimulation().Time(),
+ l,
+ t
+ });
+ // completely new place, interesting
+ // TODO: scale by personality trait
+ c.GetStats().Boredom().Add(-0.25);
+ }
+}
-void Need::Tick(double dt) noexcept {
- value = std::min(1.0, value + gain * dt);
+
+NameGenerator::NameGenerator()
+: counter(0) {
+}
+
+NameGenerator::~NameGenerator() {
+}
+
+std::string NameGenerator::Sequential() {
+ std::stringstream ss;
+ ss << "Blob " << ++counter;
+ return ss.str();
}
Situation::Situation()
: planet(nullptr)
-, position(0.0)
+, state(glm::dvec3(0.0), glm::dvec3(0.0))
, surface(0)
, type(LOST) {
}
return type == PLANET_SURFACE;
}
+bool Situation::OnSurface() const noexcept {
+ return type == PLANET_SURFACE;
+}
+
+bool Situation::OnTile() const noexcept {
+ glm::ivec2 t(planet->SurfacePosition(surface, state.pos));
+ return type == PLANET_SURFACE
+ && t.x >= 0 && t.x < planet->SideLength()
+ && t.y >= 0 && t.y < planet->SideLength();
+}
+
+glm::ivec2 Situation::SurfacePosition() const noexcept {
+ return planet->SurfacePosition(surface, state.pos);
+}
+
+world::Tile &Situation::GetTile() const noexcept {
+ glm::ivec2 t(planet->SurfacePosition(surface, state.pos));
+ return planet->TileAt(surface, t.x, t.y);
+}
+
+const world::TileType &Situation::GetTileType() const noexcept {
+ glm::ivec2 t(planet->SurfacePosition(surface, state.pos));
+ return planet->TypeAt(surface, t.x, t.y);
+}
+
+void Situation::Move(const glm::dvec3 &dp) noexcept {
+ state.pos += dp;
+ if (OnSurface()) {
+ // enforce ground constraint
+ if (Surface() < 3) {
+ state.pos[(Surface() + 2) % 3] = std::max(0.0, state.pos[(Surface() + 2) % 3]);
+ } else {
+ state.pos[(Surface() + 2) % 3] = std::min(0.0, state.pos[(Surface() + 2) % 3]);
+ }
+ }
+}
+
void Situation::SetPlanetSurface(world::Planet &p, int srf, const glm::dvec3 &pos) noexcept {
type = PLANET_SURFACE;
planet = &p;
surface = srf;
- position = pos;
+ state.pos = pos;
+}
+
+
+Steering::Steering(const Creature &c)
+: c(c)
+, target(0.0)
+, haste(0.0)
+, max_force(1.0)
+, max_speed(1.0)
+, min_dist(0.0)
+, max_look(0.0)
+, separating(false)
+, halting(true)
+, seeking(false)
+, arriving(false) {
+}
+
+Steering::~Steering() {
+}
+
+void Steering::Separate(double min_distance, double max_lookaround) noexcept {
+ separating = true;
+ min_dist = min_distance;
+ max_look = max_lookaround;
+}
+
+void Steering::DontSeparate() noexcept {
+ separating = false;
+}
+
+void Steering::Halt() noexcept {
+ halting = true;
+ seeking = false;
+ arriving = false;
+}
+
+void Steering::Pass(const glm::dvec3 &t) noexcept {
+ target = t;
+ halting = false;
+ seeking = true;
+ arriving = false;
+}
+
+void Steering::GoTo(const glm::dvec3 &t) noexcept {
+ target = t;
+ halting = false;
+ seeking = false;
+ arriving = true;
+}
+
+glm::dvec3 Steering::Force(const Situation::State &s) const noexcept {
+ double speed = max_speed * glm::clamp(max_speed * haste * haste, 0.25, 1.0);
+ double force = max_speed * glm::clamp(max_force * haste * haste, 0.5, 1.0);
+ glm::dvec3 result(0.0);
+ if (separating) {
+ // TODO: off surface situation
+ glm::dvec3 repulse(0.0);
+ const Situation &s = c.GetSituation();
+ for (auto &other : s.GetPlanet().Creatures()) {
+ if (&*other == &c) continue;
+ glm::dvec3 diff = s.Position() - other->GetSituation().Position();
+ if (length2(diff) > max_look * max_look) continue;
+ double sep = length(diff) - other->Size() * 0.707 - c.Size() * 0.707;
+ if (sep < min_dist) {
+ repulse += normalize(diff) * (1.0 - sep / min_dist);
+ }
+ }
+ SumForce(result, repulse, force);
+ }
+ if (halting) {
+ SumForce(result, s.vel * -force, force);
+ }
+ if (seeking) {
+ glm::dvec3 diff = target - s.pos;
+ if (!allzero(diff)) {
+ SumForce(result, TargetVelocity(s, (normalize(diff) * speed), force), force);
+ }
+ }
+ if (arriving) {
+ glm::dvec3 diff = target - s.pos;
+ double dist = length(diff);
+ if (!allzero(diff) && dist > std::numeric_limits<double>::epsilon()) {
+ SumForce(result, TargetVelocity(s, diff * std::min(dist * force, speed) / dist, force), force);
+ }
+ }
+ return result;
+}
+
+bool Steering::SumForce(glm::dvec3 &out, const glm::dvec3 &in, double max) const noexcept {
+ if (allzero(in) || anynan(in)) {
+ return false;
+ }
+ double cur = allzero(out) ? 0.0 : length(out);
+ double rem = max - cur;
+ if (rem < 0.0) {
+ return true;
+ }
+ double add = length(in);
+ if (add > rem) {
+ // this method is off if in and out are in different
+ // directions, but gives okayish results
+ out += in * (1.0 / add);
+ return true;
+ } else {
+ out += in;
+ return false;
+ }
+}
+
+glm::dvec3 Steering::TargetVelocity(const Situation::State &s, const glm::dvec3 &vel, double acc) const noexcept {
+ return (vel - s.vel) * acc;
}
}
projects / blobs.git / blobdiff