#include "Body.hpp"
#include "Orbit.hpp"
#include "Planet.hpp"
+#include "Resource.hpp"
+#include "Set.hpp"
#include "Simulation.hpp"
#include "Sun.hpp"
#include "Tile.hpp"
+#include "TileType.hpp"
-#include "../const.hpp"
#include "../app/Assets.hpp"
+#include "../creature/Composition.hpp"
+#include "../creature/Creature.hpp"
#include "../graphics/Viewport.hpp"
+#include "../math/const.hpp"
+#include "../math/OctaveNoise.hpp"
+#include "../math/SimplexNoise.hpp"
#include <algorithm>
#include <cmath>
+#include <iostream>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtx/euler_angles.hpp>
+#include <glm/gtx/io.hpp>
#include <glm/gtx/transform.hpp>
using blobs::G;
, surface_tilt(0.0, 0.0)
, axis_tilt(0.0, 0.0)
, rotation(0.0)
-, angular(0.0) {
+, angular(0.0)
+, orbital(1.0)
+, inverse_orbital(1.0)
+, local(1.0)
+, inverse_local(1.0)
+, creatures()
+, atmosphere(-1) {
}
Body::~Body() {
+ for (creature::Creature *c : creatures) {
+ delete c;
+ }
}
void Body::SetSimulation(Simulation &s) noexcept {
}
}
-glm::dmat4 Body::LocalTransform() const noexcept {
- glm::dmat4 srf = glm::eulerAngleXY(surface_tilt.x, surface_tilt.y);
- glm::dmat4 rot = glm::eulerAngleY(rotation);
- glm::dmat4 tilt = glm::eulerAngleXY(axis_tilt.x, axis_tilt.y);
- return tilt * rot * srf;
+glm::dmat4 Body::ToUniverse() const noexcept {
+ glm::dmat4 m(1.0);
+ const Body *b = this;
+ while (b->HasParent()) {
+ m = b->ToParent() * m;
+ b = &b->Parent();
+ }
+ return m;
+}
+
+glm::dmat4 Body::FromUniverse() const noexcept {
+ glm::dmat4 m(1.0);
+ const Body *b = this;
+ while (b->HasParent()) {
+ m *= b->FromParent();
+ b = &b->Parent();
+ }
+ return m;
}
-glm::dmat4 Body::InverseTransform() const noexcept {
- glm::dmat4 srf = glm::eulerAngleYX(-surface_tilt.y, -surface_tilt.x);
- glm::dmat4 rot = glm::eulerAngleY(-rotation);
- glm::dmat4 tilt = glm::eulerAngleYX(-axis_tilt.y, -axis_tilt.x);
- return srf * rot * tilt;
+namespace {
+std::vector<creature::Creature *> ccache;
}
-glm::dmat4 Body::ToParent() const noexcept {
- if (!parent) {
- return glm::dmat4(1.0);
+void Body::Tick(double dt) {
+ rotation += dt * AngularMomentum() / Inertia();
+ Cache();
+ ccache = Creatures();
+ for (creature::Creature *c : ccache) {
+ c->Tick(dt);
+ }
+ for (auto c = Creatures().begin(); c != Creatures().end();) {
+ if ((*c)->Removable()) {
+ delete *c;
+ c = Creatures().erase(c);
+ } else {
+ ++c;
+ }
}
- return orbit.InverseMatrix(PI_2p0 * (GetSimulation().Time() / OrbitalPeriod()));
}
-glm::dmat4 Body::FromParent() const noexcept {
- if (!parent) {
- return glm::dmat4(1.0);
+void Body::Cache() noexcept {
+ if (parent) {
+ orbital =
+ orbit.Matrix(PI_2p0 * (GetSimulation().Time() / OrbitalPeriod()))
+ * glm::eulerAngleXY(axis_tilt.x, axis_tilt.y);
+ inverse_orbital =
+ glm::eulerAngleYX(-axis_tilt.y, -axis_tilt.x)
+ * orbit.InverseMatrix(PI_2p0 * (GetSimulation().Time() / OrbitalPeriod()));
+ } else {
+ orbital = glm::eulerAngleXY(axis_tilt.x, axis_tilt.y);
+ inverse_orbital = glm::eulerAngleYX(-axis_tilt.y, -axis_tilt.x);
+ }
+ local =
+ glm::eulerAngleY(rotation)
+ * glm::eulerAngleXY(surface_tilt.x, surface_tilt.y);
+ inverse_local =
+ glm::eulerAngleYX(-surface_tilt.y, -surface_tilt.x)
+ * glm::eulerAngleY(-rotation);
+}
+
+void Body::AddCreature(creature::Creature *c) {
+ creatures.push_back(c);
+}
+
+void Body::RemoveCreature(creature::Creature *c) {
+ auto entry = std::find(creatures.begin(), creatures.end(), c);
+ if (entry != creatures.end()) {
+ creatures.erase(entry);
}
- return orbit.Matrix(PI_2p0 * (GetSimulation().Time() / OrbitalPeriod()));
}
double P = sma * (cos(E) - ecc);
double Q = sma * sin(E) * sqrt(1 - (ecc * ecc));
- return glm::translate(glm::yawPitchRoll(asc, inc, arg), glm::dvec3(P, 0.0, -Q));
+ return glm::yawPitchRoll(asc, inc, arg) * glm::translate(glm::dvec3(P, 0.0, -Q));
}
glm::dmat4 Orbit::InverseMatrix(double t) const noexcept {
double E = mean2eccentric(M, ecc);
double P = sma * (cos(E) - ecc);
double Q = sma * sin(E) * sqrt(1 - (ecc * ecc));
- return glm::transpose(glm::yawPitchRoll(asc, inc, arg)) * glm::translate(glm::dvec3(-P, 0.0, Q));
+ return glm::translate(glm::dvec3(-P, 0.0, Q)) * glm::transpose(glm::yawPitchRoll(asc, inc, arg));
}
Planet::Planet(int sidelength)
: Body()
, sidelength(sidelength)
-, tiles(new Tile[TilesTotal()])
+, tiles(TilesTotal())
, vao() {
Radius(double(sidelength) / 2.0);
}
Planet::~Planet() {
}
-void Planet::BuildVAOs() {
- vao.Bind();
- vao.BindAttributes();
- vao.EnableAttribute(0);
- vao.EnableAttribute(1);
- vao.AttributePointer<glm::vec3>(0, false, offsetof(Attributes, position));
- vao.AttributePointer<glm::vec3>(1, false, offsetof(Attributes, tex_coord));
- vao.ReserveAttributes(TilesTotal() * 4, GL_STATIC_DRAW);
+const TileType &Planet::TypeAt(int srf, int x, int y) const {
+ return GetSimulation().TileTypes()[TileAt(srf, x, y).type];
+}
+
+glm::ivec2 Planet::SurfacePosition(int srf, const glm::dvec3 &pos) const noexcept {
+ return glm::ivec2(
+ PositionToTile(pos[(srf + 0) % 3]),
+ PositionToTile(pos[(srf + 1) % 3]));
+}
+
+double Planet::SurfaceElevation(int srf, const glm::dvec3 &pos) const noexcept {
+ return srf < 3
+ ? pos[(srf + 2) % 3] - Radius()
+ : -pos[(srf + 2) % 3] - Radius();
+}
+
+glm::dvec3 Planet::TileCenter(int srf, int x, int y, double e) const noexcept {
+ glm::dvec3 center(0.0f);
+ center[(srf + 0) % 3] = x + 0.5 - Radius();
+ center[(srf + 1) % 3] = y + 0.5 - Radius();
+ center[(srf + 2) % 3] = srf < 3 ? (Radius() + e) : -(Radius() + e);
+ return center;
+}
+
+void Planet::BuildVAO(const Set<TileType> &ts) {
+ vao.reset(new graphics::SimpleVAO<Attributes, unsigned int>);
+ vao->Bind();
+ vao->BindAttributes();
+ vao->EnableAttribute(0);
+ vao->EnableAttribute(1);
+ vao->AttributePointer<glm::vec3>(0, false, offsetof(Attributes, position));
+ vao->AttributePointer<glm::vec3>(1, false, offsetof(Attributes, tex_coord));
+ vao->ReserveAttributes(TilesTotal() * 4, GL_STATIC_DRAW);
{
- auto attrib = vao.MapAttributes(GL_WRITE_ONLY);
- float offset = sidelength * 0.5f;
+ auto attrib = vao->MapAttributes(GL_WRITE_ONLY);
+ float offset = Radius();
+
+ // srf 0 1 2 3 4 5
+ // up +Z +X +Y -Z -X -Y
for (int index = 0, surface = 0; surface < 6; ++surface) {
for (int y = 0; y < sidelength; ++y) {
for (int x = 0; x < sidelength; ++x, ++index) {
- float tex = TileAt(surface, x, y).type;
+ float tex = ts[TileAt(surface, x, y).type].texture;
+ const float tex_v_begin = surface < 3 ? 1.0f : 0.0f;
+ const float tex_v_end = surface < 3 ? 0.0f : 1.0f;
attrib[4 * index + 0].position[(surface + 0) % 3] = x + 0 - offset;
attrib[4 * index + 0].position[(surface + 1) % 3] = y + 0 - offset;
attrib[4 * index + 0].position[(surface + 2) % 3] = surface < 3 ? offset : -offset;
attrib[4 * index + 0].tex_coord[0] = 0.0f;
- attrib[4 * index + 0].tex_coord[1] = 0.0f;
+ attrib[4 * index + 0].tex_coord[1] = tex_v_begin;
attrib[4 * index + 0].tex_coord[2] = tex;
attrib[4 * index + 1].position[(surface + 0) % 3] = x + 0 - offset;
attrib[4 * index + 1].position[(surface + 1) % 3] = y + 1 - offset;
attrib[4 * index + 1].position[(surface + 2) % 3] = surface < 3 ? offset : -offset;
attrib[4 * index + 1].tex_coord[0] = 0.0f;
- attrib[4 * index + 1].tex_coord[1] = 1.0f;
+ attrib[4 * index + 1].tex_coord[1] = tex_v_end;
attrib[4 * index + 1].tex_coord[2] = tex;
attrib[4 * index + 2].position[(surface + 0) % 3] = x + 1 - offset;
attrib[4 * index + 2].position[(surface + 1) % 3] = y + 0 - offset;
attrib[4 * index + 2].position[(surface + 2) % 3] = surface < 3 ? offset : -offset;
attrib[4 * index + 2].tex_coord[0] = 1.0f;
- attrib[4 * index + 2].tex_coord[1] = 0.0f;
+ attrib[4 * index + 2].tex_coord[1] = tex_v_begin;
attrib[4 * index + 2].tex_coord[2] = tex;
attrib[4 * index + 3].position[(surface + 0) % 3] = x + 1 - offset;
attrib[4 * index + 3].position[(surface + 1) % 3] = y + 1 - offset;
attrib[4 * index + 3].position[(surface + 2) % 3] = surface < 3 ? offset : -offset;
attrib[4 * index + 3].tex_coord[0] = 1.0f;
- attrib[4 * index + 3].tex_coord[1] = 1.0f;
+ attrib[4 * index + 3].tex_coord[1] = tex_v_end;
attrib[4 * index + 3].tex_coord[2] = tex;
}
}
}
}
- vao.BindElements();
- vao.ReserveElements(TilesTotal() * 6, GL_STATIC_DRAW);
+ vao->BindElements();
+ vao->ReserveElements(TilesTotal() * 6, GL_STATIC_DRAW);
{
- auto element = vao.MapElements(GL_WRITE_ONLY);
+ auto element = vao->MapElements(GL_WRITE_ONLY);
int index = 0;
for (int surface = 0; surface < 3; ++surface) {
for (int y = 0; y < sidelength; ++y) {
}
}
}
- vao.Unbind();
+ vao->Unbind();
}
void Planet::Draw(app::Assets &assets, graphics::Viewport &viewport) {
- vao.Bind();
+ if (!vao) return;
+
+ vao->Bind();
const glm::mat4 &MV = assets.shaders.planet_surface.MV();
assets.shaders.planet_surface.SetNormal(glm::vec3(MV * glm::vec4(0.0f, 0.0f, 1.0f, 0.0f)));
- vao.DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 0);
+ vao->DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 0);
assets.shaders.planet_surface.SetNormal(glm::vec3(MV * glm::vec4(1.0f, 0.0f, 0.0f, 0.0f)));
- vao.DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 1);
+ vao->DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 1);
assets.shaders.planet_surface.SetNormal(glm::vec3(MV * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f)));
- vao.DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 2);
+ vao->DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 2);
assets.shaders.planet_surface.SetNormal(glm::vec3(MV * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f)));
- vao.DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 3);
+ vao->DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 3);
assets.shaders.planet_surface.SetNormal(glm::vec3(MV * glm::vec4(-1.0f, 0.0f, 0.0f, 0.0f)));
- vao.DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 4);
+ vao->DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 4);
assets.shaders.planet_surface.SetNormal(glm::vec3(MV * glm::vec4(0.0f, -1.0f, 0.0f, 0.0f)));
- vao.DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 5);
-}
+ vao->DrawTriangles(TilesPerSurface() * 6, TilesPerSurface() * 6 * 5);
+}
+
+
+void GenerateEarthlike(const Set<TileType> &tiles, Planet &p) noexcept {
+ math::SimplexNoise elevation_gen(0);
+ math::SimplexNoise variation_gen(45623752346);
+
+ const int ice = tiles["ice"].id;
+ const int ocean = tiles["ocean"].id;
+ const int water = tiles["water"].id;
+ const int sand = tiles["sand"].id;
+ const int grass = tiles["grass"].id;
+ const int tundra = tiles["tundra"].id;
+ const int taiga = tiles["taiga"].id;
+ const int desert = tiles["desert"].id;
+ const int mntn = tiles["mountain"].id;
+ const int algae = tiles["algae"].id;
+ const int forest = tiles["forest"].id;
+ const int jungle = tiles["jungle"].id;
+ const int rock = tiles["rock"].id;
+ const int wheat = tiles["wheat"].id;
+
+ constexpr double ocean_thresh = -0.2;
+ constexpr double water_thresh = 0.0;
+ constexpr double beach_thresh = 0.05;
+ constexpr double highland_thresh = 0.4;
+ constexpr double mountain_thresh = 0.5;
+
+ const glm::dvec3 axis(glm::dvec4(0.0, 1.0, 0.0, 0.0) * glm::eulerAngleXY(p.SurfaceTilt().x, p.SurfaceTilt().y));
+ const double cap_thresh = std::abs(std::cos(p.AxialTilt().x));
+ const double equ_thresh = std::abs(std::sin(p.AxialTilt().x)) / 2.0;
+ const double fzone_start = equ_thresh - (equ_thresh - cap_thresh) / 3.0;
+ const double fzone_end = cap_thresh + (equ_thresh - cap_thresh) / 3.0;
+ for (int surface = 0; surface <= 5; ++surface) {
+ for (int y = 0; y < p.SideLength(); ++y) {
+ for (int x = 0; x < p.SideLength(); ++x) {
+ glm::dvec3 to_tile = p.TileCenter(surface, x, y);
+ double near_axis = std::abs(glm::dot(glm::normalize(to_tile), axis));
+ if (near_axis > cap_thresh) {
+ p.TileAt(surface, x, y).type = ice;
+ continue;
+ }
+ float elevation = math::OctaveNoise(
+ elevation_gen,
+ to_tile / p.Radius(),
+ 3, // octaves
+ 0.5, // persistence
+ 5 / p.Radius(), // frequency
+ 2, // amplitude
+ 2 // growth
+ );
+ float variation = math::OctaveNoise(
+ variation_gen,
+ to_tile / p.Radius(),
+ 3, // octaves
+ 0.5, // persistence
+ 16 / p.Radius(), // frequency
+ 2, // amplitude
+ 2 // growth
+ );
+ if (elevation < ocean_thresh) {
+ p.TileAt(surface, x, y).type = ocean;
+ } else if (elevation < water_thresh) {
+ if (variation > 0.3) {
+ p.TileAt(surface, x, y).type = algae;
+ } else {
+ p.TileAt(surface, x, y).type = water;
+ }
+ } else if (elevation < beach_thresh) {
+ p.TileAt(surface, x, y).type = sand;
+ } else if (elevation < highland_thresh) {
+ if (near_axis < equ_thresh) {
+ if (variation > 0.6) {
+ p.TileAt(surface, x, y).type = grass;
+ } else if (variation > 0.2) {
+ p.TileAt(surface, x, y).type = sand;
+ } else {
+ p.TileAt(surface, x, y).type = desert;
+ }
+ } else if (near_axis < fzone_start) {
+ if (variation > 0.4) {
+ p.TileAt(surface, x, y).type = forest;
+ } else if (variation < -0.5) {
+ p.TileAt(surface, x, y).type = jungle;
+ } else if (variation > -0.02 && variation < 0.02) {
+ p.TileAt(surface, x, y).type = wheat;
+ } else {
+ p.TileAt(surface, x, y).type = grass;
+ }
+ } else if (near_axis < fzone_end) {
+ p.TileAt(surface, x, y).type = tundra;
+ } else {
+ p.TileAt(surface, x, y).type = taiga;
+ }
+ } else if (elevation < mountain_thresh) {
+ if (variation > 0.3) {
+ p.TileAt(surface, x, y).type = mntn;
+ } else {
+ p.TileAt(surface, x, y).type = rock;
+ }
+ } else {
+ p.TileAt(surface, x, y).type = mntn;
+ }
+ }
+ }
+ }
+ p.BuildVAO(tiles);
+}
-void GenerateTest(Planet &p) {
+void GenerateTest(const Set<TileType> &tiles, Planet &p) noexcept {
for (int surface = 0; surface <= 5; ++surface) {
for (int y = 0; y < p.SideLength(); ++y) {
for (int x = 0; x < p.SideLength(); ++x) {
- p.TileAt(surface, x, y).type = (x == p.SideLength()/2) + (y == p.SideLength()/2);
+ if (x == p.SideLength() / 2 && y == p.SideLength() / 2) {
+ p.TileAt(surface, x, y).type = surface;
+ } else {
+ p.TileAt(surface, x, y).type = (x == p.SideLength()/2) + (y == p.SideLength()/2) + 6;
+ }
}
}
}
- p.BuildVAOs();
+ p.BuildVAO(tiles);
}
Sun::~Sun() {
}
+
+std::vector<TileType::Yield>::const_iterator TileType::FindResource(int r) const {
+ auto yield = resources.cbegin();
+ for (; yield != resources.cend(); ++yield) {
+ if (yield->resource == r) {
+ break;
+ }
+ }
+ return yield;
+}
+
+std::vector<TileType::Yield>::const_iterator TileType::FindBestResource(const creature::Composition &comp) const {
+ auto best = resources.cend();
+ double best_value = 0.0;
+ for (auto yield = resources.cbegin(); yield != resources.cend(); ++yield) {
+ double value = comp.Get(yield->resource);
+ if (value > best_value) {
+ best = yield;
+ best_value = value;
+ }
+ }
+ return best;
+}
+
}
}
projects / blobs.git / blobdiff