fix that pesky suffocation problem

[blobs.git] / src / creature / creature.cpp

diff --git a/src/creature/creature.cpp b/src/creature/creature.cpp
index 1a88dba1ab7d76831972bdaa3b0fab4d3e7b0973..39b96b22cafda71e9cfdae849e5cb50234319ffa 100644 (file)
--- a/src/creature/creature.cpp
+++ b/src/creature/creature.cpp
@@ -209,21 +209,21 @@ void Creature::DoWork(double amount) noexcept {
 void Creature::Hurt(double amount) noexcept {
        stats.Damage().Add(amount);
        if (stats.Damage().Full()) {
-               std::cout << "[" << ui::TimeString(sim.Time()) << "] " << name << " ";
+               std::ostream &log = sim.Log() << name << " ";
                if (stats.Exhaustion().Full()) {
-                       std::cout << "died of exhaustion";
+                       log << "died of exhaustion";
                } else if (stats.Breath().Full()) {
-                       std::cout << "suffocated";
+                       log << "suffocated";
                } else if (stats.Thirst().Full()) {
-                       std::cout << "died of thirst";
+                       log << "died of thirst";
                } else if (stats.Hunger().Full()) {
-                       std::cout << "starved to death";
+                       log << "starved to death";
                } else {
-                       std::cout << "succumed to wounds";
+                       log << "succumed to wounds";
                }
-               std::cout << " at an age of " << ui::TimeString(Age())
+               log << " at an age of " << ui::TimeString(Age())
                        << " (" << ui::PercentageString(Age() / properties.Lifetime())
-                       << "% of life expectancy of " << ui::TimeString(properties.Lifetime())
+                       << " of life expectancy of " << ui::TimeString(properties.Lifetime())
                        << ")" << std::endl;
                Die();
        }
@@ -321,6 +321,28 @@ double Creature::OffspringMass() const noexcept {
        return properties.OffspringMass();
 }
 
+double Creature::PerceptionRange() const noexcept {
+       return 3.0 * (Dexerty() / (Dexerty() + 1)) + Size();
+}
+
+double Creature::PerceptionOmniRange() const noexcept {
+       return 0.5 * (Dexerty() / (Dexerty() + 1)) + Size();
+}
+
+double Creature::PerceptionField() const noexcept {
+       // this is the cosine of half the angle, so 1.0 is none, -1.0 is perfect
+       return 0.8 - (Dexerty() / (Dexerty() + 1));
+}
+
+bool Creature::PerceptionTest(const glm::dvec3 &p) const noexcept {
+       const glm::dvec3 diff(p - situation.Position());
+       double omni_range = PerceptionOmniRange();
+       if (length2(diff) < omni_range * omni_range) return true;
+       double range = PerceptionRange();
+       if (length2(diff) > range * range) return false;
+       return dot(normalize(diff), situation.Heading()) > PerceptionField();
+}
+
 double Creature::OffspringChance() const noexcept {
        return AgeFactor(0.25) * properties.Fertility() * (1.0 / 3600.0);
 }
@@ -415,7 +437,6 @@ 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;
@@ -697,8 +718,7 @@ void Split(Creature &c) {
                s.GetPlanet(), s.Surface(),
                s.Position() + glm::dvec3(0.0, 0.55 * a->Size(), 0.0));
        a->BuildVAO();
-       std::cout << "[" << ui::TimeString(c.GetSimulation().Time()) << "] "
-               << a->Name() << " was born" << std::endl;
+       c.GetSimulation().Log() << a->Name() << " was born" << std::endl;
 
        Creature *b = new Creature(c.GetSimulation());
        b->AddParent(c);
@@ -712,8 +732,7 @@ void Split(Creature &c) {
                s.GetPlanet(), s.Surface(),
                s.Position() - glm::dvec3(0.0, 0.55 * b->Size(), 0.0));
        b->BuildVAO();
-       std::cout << "[" << ui::TimeString(c.GetSimulation().Time()) << "] "
-               << b->Name() << " was born" << std::endl;
+       c.GetSimulation().Log() << b->Name() << " was born" << std::endl;
 
        c.Die();
 }
@@ -927,6 +946,7 @@ glm::dvec3 Steering::Force(const Situation::State &s) const noexcept {
                        if (&*other == &c) continue;
                        glm::dvec3 diff = s.Position() - other->GetSituation().Position();
                        if (length2(diff) > max_look * max_look) continue;
+                       if (!c.PerceptionTest(other->GetSituation().Position())) 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);