#include "world.hpp"
#include <limits>
+#include <glm/gtx/transform.hpp>
namespace blank {
-const BlockType BlockType::DEFAULT;
-
-void BlockType::FillVBO(
- const glm::vec3 &pos,
- std::vector<glm::vec3> &vertices,
- std::vector<glm::vec3> &colors,
- std::vector<glm::vec3> &normals
-) const {
- vertices.emplace_back(pos.x , pos.y , pos.z + 1); // front
- vertices.emplace_back(pos.x + 1, pos.y , pos.z + 1);
- vertices.emplace_back(pos.x , pos.y + 1, pos.z + 1);
- vertices.emplace_back(pos.x + 1, pos.y , pos.z + 1);
- vertices.emplace_back(pos.x + 1, pos.y + 1, pos.z + 1);
- vertices.emplace_back(pos.x , pos.y + 1, pos.z + 1);
- vertices.emplace_back(pos.x , pos.y , pos.z ); // back
- vertices.emplace_back(pos.x , pos.y + 1, pos.z );
- vertices.emplace_back(pos.x + 1, pos.y , pos.z );
- vertices.emplace_back(pos.x + 1, pos.y , pos.z );
- vertices.emplace_back(pos.x , pos.y + 1, pos.z );
- vertices.emplace_back(pos.x + 1, pos.y + 1, pos.z );
- vertices.emplace_back(pos.x , pos.y + 1, pos.z ); // top
- vertices.emplace_back(pos.x , pos.y + 1, pos.z + 1);
- vertices.emplace_back(pos.x + 1, pos.y + 1, pos.z );
- vertices.emplace_back(pos.x + 1, pos.y + 1, pos.z );
- vertices.emplace_back(pos.x , pos.y + 1, pos.z + 1);
- vertices.emplace_back(pos.x + 1, pos.y + 1, pos.z + 1);
- vertices.emplace_back(pos.x , pos.y , pos.z ); // bottom
- vertices.emplace_back(pos.x + 1, pos.y , pos.z );
- vertices.emplace_back(pos.x , pos.y , pos.z + 1);
- vertices.emplace_back(pos.x + 1, pos.y , pos.z );
- vertices.emplace_back(pos.x + 1, pos.y , pos.z + 1);
- vertices.emplace_back(pos.x , pos.y , pos.z + 1);
- vertices.emplace_back(pos.x , pos.y , pos.z ); // left
- vertices.emplace_back(pos.x , pos.y , pos.z + 1);
- vertices.emplace_back(pos.x , pos.y + 1, pos.z );
- vertices.emplace_back(pos.x , pos.y + 1, pos.z );
- vertices.emplace_back(pos.x , pos.y , pos.z + 1);
- vertices.emplace_back(pos.x , pos.y + 1, pos.z + 1);
- vertices.emplace_back(pos.x + 1, pos.y , pos.z ); // right
- vertices.emplace_back(pos.x + 1, pos.y + 1, pos.z );
- vertices.emplace_back(pos.x + 1, pos.y , pos.z + 1);
- vertices.emplace_back(pos.x + 1, pos.y , pos.z + 1);
- vertices.emplace_back(pos.x + 1, pos.y + 1, pos.z );
- vertices.emplace_back(pos.x + 1, pos.y + 1, pos.z + 1);
-
- colors.insert(colors.end(), 6 * 6, color);
-
- normals.insert(normals.end(), 6, glm::vec3( 0.0f, 0.0f, 1.0f)); // front
- normals.insert(normals.end(), 6, glm::vec3( 0.0f, 0.0f, -1.0f)); // back
- normals.insert(normals.end(), 6, glm::vec3( 0.0f, 1.0f, 0.0f)); // top
- normals.insert(normals.end(), 6, glm::vec3( 0.0f, -1.0f, 0.0f)); // bottom
- normals.insert(normals.end(), 6, glm::vec3(-1.0f, 0.0f, 0.0f)); // left
- normals.insert(normals.end(), 6, glm::vec3( 1.0f, 0.0f, 0.0f)); // right
-}
-
-
-BlockTypeRegistry::BlockTypeRegistry() {
- Add(BlockType::DEFAULT);
-}
+World::World()
+: blockType()
+, blockShape({{ -0.5f, -0.5f, -0.5f }, { 0.5f, 0.5f, 0.5f }})
+, stairShape({{ -0.5f, -0.5f, -0.5f }, { 0.5f, 0.5f, 0.5f }}, { 0.0f, 0.0f })
+, slabShape({{ -0.5f, -0.5f, -0.5f }, { 0.5f, 0.0f, 0.5f }})
+, generate(0)
+, chunks(blockType, generate)
+, player() {
+ BlockType::Faces block_fill = { true, true, true, true, true, true };
+ BlockType::Faces slab_fill = { false, true, false, false, false, false };
+ BlockType::Faces stair_fill = { false, true, false, false, false, true };
+
+ { // white block
+ BlockType type(true, { 1.0f, 1.0f, 1.0f }, &blockShape);
+ type.fill = block_fill;
+ blockType.Add(type);
+ }
+ { // white slab
+ BlockType type(true, { 1.0f, 1.0f, 1.0f }, &slabShape);
+ type.fill = slab_fill;
+ blockType.Add(type);
+ }
+ { // white stair
+ BlockType type(true, { 1.0f, 1.0f, 1.0f }, &stairShape);
+ type.fill = stair_fill;
+ blockType.Add(type);
+ }
-int BlockTypeRegistry::Add(const BlockType &t) {
- int id = types.size();
- types.push_back(t);
- types.back().id = id;
- return id;
-}
+ { // red block
+ BlockType type(true, { 1.0f, 0.0f, 0.0f }, &blockShape);
+ type.fill = block_fill;
+ blockType.Add(type);
+ }
+ { // red slab
+ BlockType type(true, { 1.0f, 0.0f, 0.0f }, &slabShape);
+ type.fill = slab_fill;
+ blockType.Add(type);
+ }
+ { // red stair
+ BlockType type(true, { 1.0f, 0.0f, 0.0f }, &stairShape);
+ type.fill = stair_fill;
+ blockType.Add(type);
+ }
+ { // green block
+ BlockType type(true, { 0.0f, 1.0f, 0.0f }, &blockShape);
+ type.fill = block_fill;
+ blockType.Add(type);
+ }
+ { // green slab
+ BlockType type(true, { 0.0f, 1.0f, 0.0f }, &slabShape);
+ type.fill = slab_fill;
+ blockType.Add(type);
+ }
+ { // green stair
+ BlockType type(true, { 0.0f, 1.0f, 0.0f }, &stairShape);
+ type.fill = stair_fill;
+ blockType.Add(type);
+ }
-Chunk::Chunk()
-: blocks(Size())
-, model()
-, dirty(false) {
+ { // blue block
+ BlockType type(true, { 0.0f, 0.0f, 1.0f }, &blockShape);
+ type.fill = block_fill;
+ blockType.Add(type);
+ }
+ { // blue slab
+ BlockType type(true, { 0.0f, 0.0f, 1.0f }, &slabShape);
+ type.fill = slab_fill;
+ blockType.Add(type);
+ }
+ { // blue stair
+ BlockType type(true, { 0.0f, 0.0f, 1.0f }, &stairShape);
+ type.fill = stair_fill;
+ blockType.Add(type);
+ }
-}
+ generate.Space(0);
+ generate.Solids({ 1, 4, 7, 10 });
+ player.Position({ 4.0f, 4.0f, 4.0f });
-void Chunk::Draw() {
- if (dirty) {
- Update();
- }
- model.Draw();
+ chunks.Generate({ -4, -4, -4 }, { 5, 5, 5});
}
-bool Chunk::Intersection(
- const Ray &ray,
- const glm::mat4 &M,
- int *blkid,
- float *dist,
- glm::vec3 *normal) const {
- { // rough check
- const AABB bb{{0, 0, 0}, {Width(), Height(), Depth()}};
- if (!blank::Intersection(ray, bb, M)) {
- return false;
- }
- }
-
- if (!blkid && !dist && !normal) {
- return true;
- }
-
- // TODO: should be possible to heavily optimize this
- int id = 0;
- int closest_id = -1;
+bool World::Intersection(
+ const Ray &ray,
+ const glm::mat4 &M,
+ Chunk **chunk,
+ int *blkid,
+ float *dist,
+ glm::vec3 *normal) {
+ Chunk *closest_chunk = nullptr;
+ int closest_blkid = -1;
float closest_dist = std::numeric_limits<float>::infinity();
- glm::vec3 closest_normal(0, 1, 0);
- for (int z = 0; z < Depth(); ++z) {
- for (int y = 0; y < Height(); ++y) {
- for (int x = 0; x < Width(); ++x, ++id) {
- if (!blocks[id].type->visible) {
- continue;
- }
- const AABB bb{{x, y, z}, {x+1, y+1, z+1}};
- float cur_dist;
- glm::vec3 cur_norm;
- if (blank::Intersection(ray, bb, M, &cur_dist, &cur_norm)) {
- if (cur_dist < closest_dist) {
- closest_id = id;
- closest_dist = cur_dist;
- closest_normal = cur_norm;
- }
- }
+ glm::vec3 closest_normal;
+
+ for (Chunk &cur_chunk : chunks.Loaded()) {
+ int cur_blkid;
+ float cur_dist;
+ glm::vec3 cur_normal;
+ if (cur_chunk.Intersection(ray, M * cur_chunk.Transform(player.ChunkCoords()), &cur_blkid, &cur_dist, &cur_normal)) {
+ if (cur_dist < closest_dist) {
+ closest_chunk = &cur_chunk;
+ closest_blkid = cur_blkid;
+ closest_dist = cur_dist;
+ closest_normal = cur_normal;
}
}
}
- if (closest_id < 0) {
- return false;
+ if (chunk) {
+ *chunk = closest_chunk;
}
-
if (blkid) {
- *blkid = closest_id;
+ *blkid = closest_blkid;
}
if (dist) {
*dist = closest_dist;
if (normal) {
*normal = closest_normal;
}
- return true;
+ return closest_chunk;
}
-int Chunk::VertexCount() const {
- // TODO: query blocks as soon as type shapes are implemented
- return Size() * 6 * 6;
+Chunk &World::Next(const Chunk &to, const glm::tvec3<int> &dir) {
+ const Chunk::Pos tgt_pos = to.Position() + dir;
+ return chunks.ForceLoad(tgt_pos);
}
-void Chunk::Update() {
- model.Clear();
- model.Reserve(VertexCount());
- for (int i = 0; i < Size(); ++i) {
- if (blocks[i].type->visible) {
- blocks[i].type->FillModel(ToCoords(i), model);
+void World::Update(int dt) {
+ player.Update(dt);
+ chunks.Rebase(player.ChunkCoords());
+ chunks.Update();
+}
+
+
+void World::Render(DirectionalLighting &program) {
+ program.SetLightDirection({ -1.0f, -3.0f, -2.0f });
+ program.SetView(glm::inverse(player.Transform(player.ChunkCoords())));
+
+ for (Chunk &chunk : chunks.Loaded()) {
+ glm::mat4 m(chunk.Transform(player.ChunkCoords()));
+ program.SetM(m);
+ glm::mat4 mvp(program.GetVP() * m);
+ if (!CullTest(Chunk::Bounds(), mvp)) {
+ chunk.Draw();
}
}
-
- model.Invalidate();
- dirty = false;
}
}
projects / blank.git / blobdiff