+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
+ if (sim.Resources()[res].state == world::Resource::SOLID) {
+ // 15% of solids stays in body
+ AddMass(res, amount * 0.15);
+ } else {
+ // 10% of fluids stays in body
+ AddMass(res, amount * 0.05);
+ }
+ math::GaloisLFSR &random = sim.Assets().random;
+ if (random.UNorm() < AdaptChance()) {
+ // change color to be slightly more like resource
+ glm::dvec3 color(rgb2hsl(sim.Resources()[res].base_color));
+ // solids affect base color, others highlight
+ double p = sim.Resources()[res].state == world::Resource::SOLID ? 0 : 1;
+ double q = random.UInt(3); // hue, sat, or val
+ double r = random.UInt(2); // mean or deviation
+ math::Distribution *d = nullptr;
+ double ref = 0.0;
+ if (p == 0) {
+ if (q == 0) {
+ d = &genome.base_hue;
+ ref = color.x;
+ } else if (q == 1) {
+ d = &genome.base_saturation;
+ ref = color.y;
+ } else {
+ d = &genome.base_lightness;
+ ref = color.z;
+ }
+ } else {
+ if (q == 0) {
+ d = &genome.highlight_hue;
+ ref = color.x;
+ } else if (q == 1) {
+ d = &genome.highlight_saturation;
+ ref = color.y;
+ } else {
+ d = &genome.highlight_lightness;
+ ref = color.z;
+ }
+ }
+ if (r == 0) {
+ double diff = ref - d->Mean();
+ if (q == 0) {
+ if (diff < -0.5) {
+ diff += 1.0;
+ } else if (diff > 0.5) {
+ diff -= 1.0;
+ }
+ // move ±15% of distance
+ d->Mean(std::fmod(d->Mean() + diff * random.SNorm() * 0.15, 1.0));
+ } else {
+ d->Mean(glm::clamp(d->Mean() + diff * random.SNorm() * 0.15, 0.0, 1.0));
+ }
+ } else {
+ // scale by ±15%, enforce bounds
+ d->StandardDeviation(glm::clamp(d->StandardDeviation() * (1.0 + random.SNorm() * 0.15), 0.0001, 0.5));
+ }
+ }
+}
+
+void Creature::DoWork(double amount) noexcept {
+ stats.Exhaustion().Add(amount / Stamina());
+ // burn resources proportional to composition
+ // factor = 1/total * 1/efficiency * amount * -1
+ double factor = -amount / (composition.TotalMass() * EnergyEfficiency());
+ // make a copy to total remains constant and
+ // no entries disappear during iteration
+ Composition comp(composition);
+ for (auto &cmp : comp) {
+ double value = cmp.value * factor * sim.Resources()[cmp.resource].inverse_energy;
+ AddMass(cmp.resource, value);
+ }
+}
+
+void Creature::Hurt(double amount) noexcept {
+ stats.Damage().Add(amount);
+ if (stats.Damage().Full()) {
+ std::ostream &log = sim.Log() << name << " ";
+ if (stats.Exhaustion().Full()) {
+ log << "died of exhaustion";
+ } else if (stats.Breath().Full()) {
+ log << "suffocated";
+ } else if (stats.Thirst().Full()) {
+ log << "died of thirst";
+ } else if (stats.Hunger().Full()) {
+ log << "starved to death";
+ } else {
+ log << "succumed to wounds";
+ }
+ log << " at an age of " << ui::TimeString(Age())
+ << " (" << ui::PercentageString(Age() / properties.Lifetime())
+ << " of life expectancy of " << ui::TimeString(properties.Lifetime())
+ << ")" << std::endl;