src/creature/need.cpp

   1 #include "Need.hpp"
   2 #include "InhaleNeed.hpp"
   3 #include "IngestNeed.hpp"
   4
   5 #include "Creature.hpp"
   6 #include "../world/Planet.hpp"
   7 #include "../world/TileType.hpp"
   8
   9
  10 namespace blobs {
  11 namespace creature {
  12
  13 Need::~Need() {
  14 }
  15
  16 void Need::Tick(double dt) noexcept {
  17         Increase(gain * dt);
  18 }
  19
  20 void Need::Increase(double delta) noexcept {
  21         value = std::min(1.0, value + delta);
  22 }
  23
  24 void Need::Decrease(double delta) noexcept {
  25         value = std::max(0.0, value - delta);
  26 }
  27
  28
  29 IngestNeed::IngestNeed(int resource, double speed, double damage)
  30 : resource(resource)
  31 , speed(speed)
  32 , damage(damage)
  33 , ingesting(false) {
  34 }
  35
  36 IngestNeed::~IngestNeed() {
  37 }
  38
  39 void IngestNeed::ApplyEffect(Creature &c, double dt) {
  40         if (!IsSatisfied()) {
  41                 ingesting = true;
  42         }
  43         if (!IsSatisfied()) {
  44                 // TODO: find resource and start ingest task
  45                 if (c.GetSituation().OnSurface()) {
  46                         const world::TileType &t = c.GetSituation().GetTileType();
  47                         for (auto &yield : t.resources) {
  48                                 if (yield.resource == resource) {
  49                                         Decrease(std::min(yield.ubiquity, speed) * dt);
  50                                         break;
  51                                 }
  52                         }
  53                 }
  54         }
  55         if (IsCritical()) {
  56                 c.Hurt(damage * dt);
  57         }
  58 }
  59
  60
  61 InhaleNeed::InhaleNeed(int resource, double speed, double damage)
  62 : resource(resource)
  63 , speed(speed)
  64 , damage(damage)
  65 , inhaling(false) {
  66 }
  67
  68 InhaleNeed::~InhaleNeed() {
  69 }
  70
  71 void InhaleNeed::ApplyEffect(Creature &c, double dt) {
  72         if (!IsSatisfied()) {
  73                 inhaling = true;
  74         }
  75         if (inhaling) {
  76                 if (c.GetSituation().OnPlanet() && c.GetSituation().GetPlanet().Atmosphere() == resource) {
  77                         Decrease(speed * dt);
  78                         if (value == 0.0) {
  79                                 inhaling = false;
  80                         }
  81                 } else {
  82                         // TODO: panic
  83                 }
  84         }
  85         if (IsCritical()) {
  86                 c.Hurt(damage * dt);
  87         }
  88 }
  89
  90 }
  91 }