#include "Creature.hpp"
#include "Situation.hpp"
+#include "Steering.hpp"
+#include "Goal.hpp"
#include "InhaleNeed.hpp"
#include "IngestNeed.hpp"
#include "Need.hpp"
#include "../app/Assets.hpp"
#include "../world/Body.hpp"
#include "../world/Planet.hpp"
+#include "../world/Simulation.hpp"
#include "../world/TileType.hpp"
+#include <algorithm>
#include <glm/gtx/transform.hpp>
#include <iostream>
+#include <glm/gtx/io.hpp>
namespace blobs {
namespace creature {
-Creature::Creature()
-: name()
+Creature::Creature(world::Simulation &sim)
+: sim(sim)
+, name()
+, size(1.0)
, health(1.0)
, needs()
+, goals()
, situation()
+, steering()
+, vel(0.0)
, vao() {
}
health = std::max(0.0, health - dt);
}
+void Creature::AddGoal(std::unique_ptr<Goal> &&g) {
+ std::cout << "new goal: " << g->Describe() << std::endl;
+ 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) {
- // update needs
+ // TODO: better integration method
+ glm::dvec3 acc(steering.Acceleration(*this));
+ situation.Move(vel * dt);
+ vel += acc * dt;
+
for (auto &need : needs) {
need->Tick(dt);
}
+ for (auto &goal : goals) {
+ goal->Tick(dt);
+ }
// do background stuff
for (auto &need : needs) {
need->ApplyEffect(*this, dt);
}
+ if (goals.empty()) {
+ return;
+ }
+ // if active goal can be interrupted, check priorities
+ if (goals.size() > 1 && goals[0]->Interruptible()) {
+ Goal *old_top = &*goals[0];
+ std::sort(goals.begin(), goals.end(), GoalCompare);
+ Goal *new_top = &*goals[0];
+ if (new_top != old_top) {
+ std::cout << "changing goal from " << old_top->Describe()
+ << " to " << new_top->Describe() << std::endl;
+ }
+ }
+ goals[0]->Action();
+ for (auto goal = goals.begin(); goal != goals.end();) {
+ if ((*goal)->Complete()) {
+ std::cout << "complete goal: " << (*goal)->Describe() << std::endl;
+ 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));
+ return glm::translate(glm::dvec3(pos.x, pos.y, pos.z + half_size))
+ * glm::scale(glm::dvec3(half_size, half_size, half_size));
}
void Creature::BuildVAO() {
void Spawn(Creature &c, world::Planet &p, app::Assets &assets) {
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.Size(0.5);
// 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 = assets.data.tile_types[p.TileAt(0, x, y).type];
for (auto yield : t.resources) {
yields[yield.resource] += yield.ubiquity;
}
if (p.HasAtmosphere()) {
std::cout << "require breathing " << assets.data.resources[p.Atmosphere()].label << std::endl;
- std::unique_ptr<Need> need(new InhaleNeed(p.Atmosphere(), 0.25, 0.1));
+ std::unique_ptr<Need> need(new InhaleNeed(p.Atmosphere(), 0.5, 0.1));
need->name = assets.data.resources[p.Atmosphere()].label;
- need->gain = 0.25;
+ need->gain = 0.2;
need->inconvenient = 0.4;
need->critical = 0.95;
c.AddNeed(std::move(need));
std::cout << "require drinking " << assets.data.resources[liquid].label << std::endl;
std::unique_ptr<Need> need(new IngestNeed(liquid, 0.2, 0.01));
need->name = assets.data.resources[liquid].label;
- need->gain = 0.0001;
+ need->gain = 0.02;
need->inconvenient = 0.6;
need->critical = 0.95;
c.AddNeed(std::move(need));
}
if (solid > -1) {
std::cout << "require eating " << assets.data.resources[solid].label << std::endl;
- std::unique_ptr<Need> need(new IngestNeed(solid, 0.03, 0.001));
+ std::unique_ptr<Need> need(new IngestNeed(solid, 0.1, 0.001));
need->name = assets.data.resources[solid].label;
- need->gain = 0.00001;
+ need->gain = 0.017;
need->inconvenient = 0.6;
need->critical = 0.95;
c.AddNeed(std::move(need));
return type == PLANET_SURFACE;
}
+bool Situation::OnSurface() const noexcept {
+ return type == PLANET_SURFACE;
+}
+
+world::Tile &Situation::GetTile() const noexcept {
+ double side_length = planet->SideLength();
+ double offset = side_length * 0.5;
+ double x = std::max(0.0, std::min(side_length, position.x + offset));
+ double y = std::max(0.0, std::min(side_length, position.y + offset));
+ return planet->TileAt(surface, int(x), int(y));
+}
+
+const world::TileType &Situation::GetTileType() const noexcept {
+ return planet->GetSimulation().TileTypes()[GetTile().type];
+}
+
+void Situation::Move(const glm::dvec3 &dp) noexcept {
+ position += dp;
+ if (OnSurface()) {
+ // enforce ground constraint
+ if (Surface() < 3) {
+ position[(Surface() + 2) % 3] = std::max(0.0, position[(Surface() + 2) % 3]);
+ } else {
+ position[(Surface() + 2) % 3] = std::min(0.0, position[(Surface() + 2) % 3]);
+ }
+ }
+}
+
void Situation::SetPlanetSurface(world::Planet &p, int srf, const glm::dvec3 &pos) noexcept {
type = PLANET_SURFACE;
planet = &p;
position = pos;
}
+
+Steering::Steering()
+: seek_target(0.0)
+, max_accel(1.0)
+, max_speed(1.0)
+, halting(false)
+, seeking(false) {
+}
+
+Steering::~Steering() {
+}
+
+void Steering::Halt() noexcept {
+ halting = true;
+ seeking = false;
+}
+
+void Steering::GoTo(const glm::dvec3 &t) noexcept {
+ seek_target = t;
+ halting = false;
+ seeking = true;
+}
+
+glm::dvec3 Steering::Acceleration(Creature &c) const noexcept {
+ glm::dvec3 acc(0.0);
+ if (halting) {
+ SumForce(acc, c.Velocity() * -max_accel);
+ }
+ if (seeking) {
+ glm::dvec3 diff = seek_target - c.GetSituation().Position();
+ if (!allzero(diff)) {
+ SumForce(acc, ((normalize(diff) * max_speed) - c.Velocity()) * max_accel);
+ }
+ }
+ return acc;
+}
+
+bool Steering::SumForce(glm::dvec3 &out, const glm::dvec3 &in) const noexcept {
+ if (allzero(in) || anynan(in)) {
+ return false;
+ }
+ double cur = allzero(out) ? 0.0 : length(out);
+ double rem = max_accel - 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;
+ }
+}
+
}
}
projects / blobs.git / blobdiff