moar intelligent search

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

diff --git a/src/creature/goal.cpp b/src/creature/goal.cpp
index 65de6c0c78317ab43e16e788cc6f023dce2e62cc..958ebce86ea9e7dbd20f57a81dc621516f7e0b56 100644 (file)
--- a/src/creature/goal.cpp
+++ b/src/creature/goal.cpp
@@ -1,3 +1,4 @@
+#include "AttackGoal.hpp"
 #include "BlobBackgroundTask.hpp"
 #include "Goal.hpp"
 #include "IdleGoal.hpp"
@@ -22,6 +23,78 @@
 namespace blobs {
 namespace creature {
 
+AttackGoal::AttackGoal(Creature &self, Creature &target)
+: Goal(self)
+, target(target)
+, damage_target(0.25)
+, damage_dealt(0.0)
+, cooldown(0.0) {
+}
+
+AttackGoal::~AttackGoal() {
+}
+
+std::string AttackGoal::Describe() const {
+       return "attack " + target.Name();
+}
+
+void AttackGoal::Tick(double dt) {
+       cooldown -= dt;
+}
+
+void AttackGoal::Action() {
+       if (target.Dead() || !GetCreature().PerceptionTest(target.GetSituation().Position())) {
+               SetComplete();
+               return;
+       }
+       const glm::dvec3 diff(GetCreature().GetSituation().Position() - target.GetSituation().Position());
+       const double hit_range = GetCreature().Size() * 0.5 * GetCreature().DexertyFactor();
+       const double hit_dist = hit_range + (0.5 * GetCreature().Size()) + 0.5 * (target.Size());
+       if (GetCreature().GetStats().Damage().Critical()) {
+               // flee
+               GetCreature().GetSteering().Pass(diff * 5.0);
+               GetCreature().GetSteering().DontSeparate();
+               GetCreature().GetSteering().Haste(1.0);
+       } else if (glm::length2(diff) > hit_dist * hit_dist) {
+               // full throttle chase
+               GetCreature().GetSteering().Pass(target.GetSituation().Position());
+               GetCreature().GetSteering().DontSeparate();
+               GetCreature().GetSteering().Haste(1.0);
+       } else {
+               // attack
+               GetCreature().GetSteering().Halt();
+               GetCreature().GetSteering().DontSeparate();
+               GetCreature().GetSteering().Haste(1.0);
+               if (cooldown <= 0.0) {
+                       constexpr double impulse = 0.05;
+                       const double force = GetCreature().Strength();
+                       const double damage =
+                               force * impulse
+                               * (GetCreature().GetComposition().TotalDensity() / target.GetComposition().TotalDensity())
+                               * (GetCreature().Mass() / target.Mass())
+                               / target.Mass();
+                       GetCreature().DoWork(force * impulse * glm::length(diff));
+                       target.Hurt(damage);
+                       target.GetSituation().Accelerate(glm::normalize(diff) * force * -impulse);
+                       damage_dealt += damage;
+                       if (damage_dealt >= damage_target || target.Dead()) {
+                               SetComplete();
+                               if (target.Dead()) {
+                                       GetCreature().GetSimulation().Log() << GetCreature().Name()
+                                               << " killed " << target.Name() << std::endl;
+                               }
+                       }
+                       cooldown = 1.0 + (4.0 * (1.0 - GetCreature().DexertyFactor()));
+               }
+       }
+}
+
+void AttackGoal::OnBackground() {
+       // abort if something more important comes up
+       SetComplete();
+}
+
+
 BlobBackgroundTask::BlobBackgroundTask(Creature &c)
 : Goal(c)
 , breathing(false)
@@ -340,7 +413,7 @@ void IngestGoal::Action() {
 }
 
 bool IngestGoal::OnSuitableTile() {
-       if (!GetSituation().OnSurface()) {
+       if (!GetSituation().OnGround()) {
                return false;
        }
        const world::TileType &t = GetSituation().GetTileType();
@@ -393,15 +466,14 @@ void LocateResourceGoal::Action() {
                if (!searching) {
                        LocateResource();
                } else {
-                       double dist = glm::length2(GetSituation().Position() - target_pos);
-                       if (dist < 0.0001) {
+                       if (OnTarget()) {
                                searching = false;
                                LocateResource();
                        } else {
                                GetSteering().GoTo(target_pos);
                        }
                }
-       } else if (NearTarget()) {
+       } else if (OnTarget()) {
                GetSteering().Halt();
                if (!GetSituation().Moving()) {
                        SetComplete();
@@ -443,11 +515,12 @@ void LocateResourceGoal::SearchVicinity() {
        const world::Planet &planet = GetSituation().GetPlanet();
        const glm::dvec3 &pos = GetSituation().Position();
        const glm::dvec3 normal(planet.NormalAt(pos));
-       const glm::dvec3 step_x(glm::normalize(glm::cross(normal, glm::dvec3(normal.z, normal.x, normal.y))));
-       const glm::dvec3 step_y(glm::normalize(glm::cross(step_x, normal)));
+       const glm::dvec3 step_x(glm::normalize(glm::cross(normal, glm::dvec3(normal.z, normal.x, normal.y))) * (GetCreature().PerceptionOmniRange() * 0.7));
+       const glm::dvec3 step_y(glm::normalize(glm::cross(step_x, normal)) * (GetCreature().PerceptionOmniRange() * 0.7));
 
-       constexpr int search_radius = 2;
-       double rating[2 * search_radius + 1][2 * search_radius + 1] = {0};
+       const int search_radius = int(GetCreature().PerceptionRange() / (GetCreature().PerceptionOmniRange() * 0.7));
+       double rating[2 * search_radius + 1][2 * search_radius + 1];
+       std::memset(rating, '\0', (2 * search_radius + 1) * (2 * search_radius + 1) * sizeof(double));
 
        // find close and rich field
        for (int y = -search_radius; y < search_radius + 1; ++y) {
@@ -523,17 +596,17 @@ void LocateResourceGoal::RandomWalk() {
        found = false;
        searching = true;
        target_pos = GetSituation().Position();
-       target_pos += Random().SNorm() * step_x;
-       target_pos += Random().SNorm() * step_y;
+       target_pos += Random().SNorm() * 3.0 * step_x;
+       target_pos += Random().SNorm() * 3.0 * step_y;
        // bias towards current heading
        target_pos += GetSituation().Heading() * 1.5;
        target_pos = glm::normalize(target_pos) * planet.Radius();
        GetSteering().GoTo(target_pos);
 }
 
-bool LocateResourceGoal::NearTarget() const noexcept {
+bool LocateResourceGoal::OnTarget() const noexcept {
        const Situation &s = GetSituation();
-       return s.OnSurface() && glm::length2(s.Position() - target_pos) < 0.5;
+       return s.OnGround() && glm::length2(s.Position() - target_pos) < 0.0001;
 }