Transform to server only program

deerith_engine_client/CMakeLists.txt

@@ -1,52 +1,37 @@
-find_package(glfw3 REQUIRED)
+find_package(glfw3 CONFIG REQUIRED)
 find_package(OpenGL REQUIRED)
-
 find_package(PkgConfig REQUIRED)
-pkg_check_modules(IMGUI REQUIRED imgui)
 
+pkg_check_modules(IMGUI REQUIRED IMPORTED_TARGET imgui)
 
-add_library(DeerithClient)
+file(GLOB_RECURSE DEERITH_SOURCES
-
-file(GLOB_RECURSE deerith_SOURCES
     CONFIGURE_DEPENDS
-    ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp"
 )
 
-target_sources(DeerithClient
+add_executable(DeerithClient
-    PRIVATE
+    ${DEERITH_SOURCES}
-        ${deerith_SOURCES}
 )
 
 target_include_directories(DeerithClient
     PRIVATE
-        ${CMAKE_CURRENT_SOURCE_DIR}/src
+        "${CMAKE_CURRENT_SOURCE_DIR}/src"
-    PUBLIC
+        "${CMAKE_CURRENT_SOURCE_DIR}/include"
-        ${CMAKE_CURRENT_SOURCE_DIR}/include
-        ${IMGUI_INCLUDE_DIRS}
-)
-
-target_include_directories(DeerithClient
-    PRIVATE
-        ${CMAKE_CURRENT_SOURCE_DIR}/src
 )
 
 target_link_libraries(DeerithClient
-    PUBLIC
+    PRIVATE
         DeerithCore
         OpenGL::GL
         glfw
-        ${IMGUI_LIBRARIES}
+        PkgConfig::IMGUI
 )
 
 add_custom_target(DeerithClientShaders ALL
     COMMAND ${CMAKE_COMMAND} -E copy_directory
-        ${CMAKE_CURRENT_SOURCE_DIR}/shaders
+        "${CMAKE_CURRENT_SOURCE_DIR}/shaders"
-        ${CMAKE_CURRENT_BINARY_DIR}/shaders
+        "${CMAKE_CURRENT_BINARY_DIR}/shaders"
-)
+    COMMENT "Copying DeerithClient shaders"
-
-target_compile_definitions(DeerithClient
-    PUBLIC
-        DEERITH_CLIENT
 )
 
 add_dependencies(DeerithClient DeerithClientShaders)

deerith_engine_client/include/deerith/graphics/mesh.h

@@ -28,6 +28,7 @@ namespace deerith
 
         void bind() const;
         void draw() const;
+        void draw_lines() const;
 
         ~mesh_3d_t();
 
@@ -37,5 +38,6 @@ namespace deerith
         unsigned int ebo;
 
         size_t index_count;
+        size_t vertex_count;
     };
 }

deerith_engine_client/include/deerith/graphics/primitive.h

@@ -13,4 +13,5 @@ namespace deerith
 
     shader_t *get_lit_shader();
     mesh_3d_t *get_cube_mesh();
+    mesh_3d_t *get_grid_mesh();
 }

deerith_engine_client/include/deerith/graphics/primitive_internals.h

@@ -1,6 +1,8 @@
 #pragma once
 #include "glm/glm.hpp"
 
+#define GRID_SIZE 21
+
 namespace deerith
 {
     void init_primitives();

deerith_engine_client/src/engine.cpp

@@ -1,12 +1,7 @@
 #include <deerith/engine.h>
 #include <deerith/core/log.h>
 
-#include "network/network_internals.h"
+#include <deerith/network/network_internals.h>
-
-namespace deerith
-{
-
-}
 
 void deerith::init_engine()
 {

deerith_engine_client/src/graphics/mesh.cpp

@@ -67,10 +67,10 @@ void deerith::mesh_2d_t::draw() const
 
 deerith::mesh_3d_t::mesh_3d_t(
     const glm::vec3 *vertices,
-    std::size_t vertex_count,
+    std::size_t _vertex_count,
     const unsigned int *indices,
-    std::size_t index_count)
+    std::size_t _index_count)
-    : index_count(index_count)
+    : index_count(_index_count), vertex_count(_vertex_count)
 {
     glGenVertexArrays(1, &vao);
     glGenBuffers(1, &vbo);
@@ -121,10 +121,15 @@ void deerith::mesh_3d_t::bind() const
 void deerith::mesh_3d_t::draw() const
 {
     glBindVertexArray(vao);
-
     glDrawElements(
         GL_TRIANGLES,
         static_cast<GLsizei>(index_count),
         GL_UNSIGNED_INT,
         nullptr);
 }
+
+void deerith::mesh_3d_t::draw_lines() const
+{
+    glBindVertexArray(vao);
+    glDrawArrays(GL_LINES, 0, vertex_count);
+}

deerith_engine_client/src/graphics/primitives.cpp

@@ -1,7 +1,7 @@
-#include "primitive_internals.h"
+#include <deerith/graphics/primitive_internals.h>
-#include "deerith/graphics/primitive.h"
+#include <deerith/graphics/primitive.h>
 #include <deerith/graphics/shader.h>
-#include "deerith/graphics/mesh.h"
+#include <deerith/graphics/mesh.h>
 #include <deerith/engine.h>
 
 #include "glm/glm.hpp"
@@ -12,6 +12,7 @@
 #include <glm/gtc/type_ptr.hpp>
 
 #include <glad/gl.h>
+#include <vector>
 
 namespace deerith
 {
@@ -20,7 +21,27 @@ namespace deerith
 
     std::unique_ptr<shader_t> lit_shader;
     std::unique_ptr<mesh_3d_t> cube_mesh;
+    std::unique_ptr<mesh_3d_t> grid_mesh;
 
+    void create_grid_mesh();
+}
+
+void deerith::create_grid_mesh()
+{
+    const size_t vertex_count = GRID_SIZE * 4;
+    std::vector<glm::vec3> grid_vertices; // size will GRID_SIZE * 4
+    for (int i = 0; i < GRID_SIZE; i++)
+    {
+        float relative_position = static_cast<float>(i) / static_cast<float>(GRID_SIZE - 1);
+        float absolute_position = (relative_position * 2.0f - 1.0f) * static_cast<float>(GRID_SIZE);
+        grid_vertices.push_back(glm::vec3(absolute_position, 0, -GRID_SIZE));
+        grid_vertices.push_back(glm::vec3(absolute_position, 0, GRID_SIZE));
+
+        grid_vertices.push_back(glm::vec3(-GRID_SIZE, 0, absolute_position));
+        grid_vertices.push_back(glm::vec3(GRID_SIZE, 0, absolute_position));
+    }
+
+    grid_mesh = std::make_unique<mesh_3d_t>(&grid_vertices[0], vertex_count, nullptr, 0);
 }
 
 void deerith::init_primitives()
@@ -35,6 +56,8 @@ void deerith::init_primitives()
         "../deerith_engine_client/shaders/lit.frag.glsl");
 
     cube_mesh = std::make_unique<mesh_3d_t>(cube_vertices, 8, cube_indices, 36); // 6 faces * 2 * 3
+
+    create_grid_mesh();
 }
 
 void deerith::shutdown_primitives()
@@ -47,6 +70,8 @@ void deerith::shutdown_primitives()
     lit_shader.reset();
     cube_mesh.release();
     cube_mesh.reset();
+    grid_mesh.release();
+    grid_mesh.reset();
 }
 
 void deerith::set_primitive_viewspace(glm::vec2 start_viewspace, glm::vec2 end_viewspace)
@@ -98,3 +123,8 @@ deerith::mesh_3d_t *deerith::get_cube_mesh()
 {
     return cube_mesh.get();
 }
+
+deerith::mesh_3d_t *deerith::get_grid_mesh()
+{
+    return grid_mesh.get();
+}

deerith_engine_client/src/graphics/window.cpp

@@ -1,6 +1,6 @@
 #include "deerith/graphics/window.h"
-#include "primitive_internals.h"
+#include <deerith/graphics/primitive_internals.h>
-#include "../network/network_internals.h"
+#include <deerith/network/network_internals.h>
 #include <deerith/world.h>
 
 #include <glad/gl.h>
@@ -68,8 +68,8 @@ int deerith::init_window()
     glEnable(GL_BLEND);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
-    glDisable(GL_DEPTH_TEST);
+    glEnable(GL_DEPTH_TEST);
-    glDisable(GL_CULL_FACE);
+    glEnable(GL_CULL_FACE);
 
     init_primitives();
     init_imgui();
@@ -125,6 +125,7 @@ void deerith::finish_window_display()
 
     glClearColor(0.1f, 0.1f, 0.15f, 1.0f);
     glClear(GL_COLOR_BUFFER_BIT);
+    glClear(GL_DEPTH_BUFFER_BIT);
 }
 
 void deerith::shutdown_window()

deerith_engine_client/src/main.cpp

@@ -3,23 +3,18 @@
 #include <thread>
 #include <args/argh.h>
 
-#ifdef DEERITH_CLIENT
 #include <deerith/graphics/window.h>
-#endif
 
 int main(int argc, const char **argv)
 {
     deerith::init_engine();
     auto cmdl = argh::parser(argc, argv);
 
+    // set up world
     int port = 8080;
     cmdl("port", 8080) >> port;
-#ifdef DEERITH_SERVER
-    deerith::run_world(8080);
-#endif
 
-#ifdef DEERITH_CLIENT
+    if (cmdl[{"-s", "--single"}] && !deerith::execute_client("../sandbox/SandboxServer", port))
-    if (cmdl[{"-s", "--single"}] && !deerith::execute_server("./SandboxServer", port))
     {
         deerith_error("could not start server");
         deerith::shutdown_engine();
@@ -41,7 +36,6 @@ int main(int argc, const char **argv)
 
         deerith::shutdown_window();
     }
-#endif
 
     deerith::shutdown_executing_servers();
     deerith::shutdown_engine();

deerith_engine_client/src/network/network.cpp

@@ -6,7 +6,7 @@
 #include <thread>
 #include <memory>
 
-#include "network_internals.h"
+#include <deerith/network/network_internals.h>
 
 namespace deerith
 {

deerith_engine_client/src/world/player_movment.cpp

@@ -5,7 +5,7 @@
 #include <deerith/network/packets.h>
 #include <deerith/world/components.h>
 
-#include "world/world_internals.h"
+#include <deerith/world/world_internals.h>
 
 namespace deerith
 {

deerith_engine_client/src/world/server_communication.cpp

@@ -4,8 +4,8 @@
 #include <deerith/world/components.h>
 #include <deerith/world.h>
 
-#include "world/world_internals.h"
+#include <deerith/world/world_internals.h>
-#include "network/network_internals.h"
+#include <deerith/network/network_internals.h>
 
 void deerith::setup_base_protocols()
 {

deerith_engine_client/src/world/world.cpp

@@ -1,8 +1,8 @@
 #include <deerith/engine.h>
 #include <deerith/world.h>
 
-#include "network/network_internals.h"
+#include <deerith/network/network_internals.h>
-#include "world/world_internals.h"
+#include <deerith/world/world_internals.h>
 
 #include <thread>
 #include <memory>

deerith_engine_client/src/world/world_render.cpp

@@ -13,23 +13,29 @@ void deerith::render_world()
 {
     set_primitive_viewspace(glm::vec2(-10, -10), glm::vec2(10, 10));
 
+    camera_t camera;
+    camera.position = glm::vec3(0, 3, -10);
+    set_camera_to_shader(camera, get_lit_shader());
+
+    get_lit_shader()->use();
+    get_lit_shader()->set_vec4("u_color", glm::vec4(0.8f, 0.8f, 0.8f, 1));
+    set_transform_to_shader(glm::vec3(0, 0, 0), glm::identity<glm::quat>(), glm::vec3(1, 1, 1), get_lit_shader());
+    get_grid_mesh()->draw_lines();
+
     auto entities_view = get_entity_registry().view<component_sync_coordinates_t>(entt::exclude<component_player_sync_input_t>);
     for (auto [entity, sync_coords] : entities_view.each())
     {
         glm::vec2 chords;
         if (sync_coords.position.read_synced(chords))
         {
-            camera_t camera;
-            camera.position = glm::vec3(0, 0, -10);
 
             glm::vec3 position = glm::vec3(chords.x, 0, chords.y);
             glm::quat rotation = glm::identity<glm::quat>();
             glm::vec3 scale = glm::vec3(1, 1, 1);
 
-            set_camera_to_shader(camera, get_lit_shader());
+            get_lit_shader()->set_vec4("u_color", glm::vec4(1, 0.4f, 0.6f, 1));
             set_transform_to_shader(position, rotation, scale, get_lit_shader());
 
-            get_lit_shader()->set_vec4("u_color", glm::vec4(1, 0.4f, 0.6f, 1));
             get_lit_shader()->use();
             get_cube_mesh()->draw();
         }
@@ -40,16 +46,12 @@ void deerith::render_world()
     for (auto [entity, sync_coords, client_sync_coords] : self_view.each())
     {
 
-        camera_t camera;
-        camera.position = glm::vec3(0, 0, -10);
-
-        get_lit_shader()->set_vec4("u_color", glm::vec4(0.8f, 0.8f, 0.8f, 1));
         glm::vec2 user_pos = client_sync_coords.position.read_value();
         glm::vec3 position = glm::vec3(user_pos.x, 0, user_pos.y);
         glm::quat rotation = glm::identity<glm::quat>();
         glm::vec3 scale = glm::vec3(1, 1, 1);
 
-        set_camera_to_shader(camera, get_lit_shader());
+        get_lit_shader()->set_vec4("u_color", glm::vec4(0.8f, 0.8f, 0.8f, 1));
         set_transform_to_shader(position, rotation, scale, get_lit_shader());
 
         get_lit_shader()->use();

deerith_engine_core/include/deerith/engine.h

@@ -14,6 +14,6 @@ namespace deerith
     void init_engine();
     void shutdown_engine();
 
-    bool execute_server(const char *server_executable_path, int port);
+    bool execute_client(const char *server_executable_path, int port);
     void shutdown_executing_servers();
 }

deerith_engine_core/include/deerith/world/voxels.h

@@ -0,0 +1,19 @@
+#pragma once
+#include <deerith/engine.h>
+
+#include <string>
+
+namespace deerith
+{
+    using voxel_type_id_t = uint16_t;
+
+    struct voxel_type_t
+    {
+        std::string id;
+        bool is_air = false;
+    };
+
+    voxel_type_id_t register_voxel_type(const voxel_type_t &type);
+    voxel_type_id_t get_voxel_type_id(const std::string &name);
+    const voxel_type_t &get_voxel_type(voxel_type_id_t id);
+}

deerith_engine_core/src/server_execution.cpp

@@ -12,13 +12,13 @@ namespace deerith
     std::vector<pid_t> executing_servers;
 }
 
-bool deerith::execute_server(const char *server_executable_path, int port)
+bool deerith::execute_client(const char *client_executable_path, int port)
 {
     pid_t pid = fork();
 
     if (pid < 0)
     {
-        deerith_error("execute_server fatal error");
+        deerith_error("execute_client fatal error");
         return false;
     }
 
@@ -30,13 +30,13 @@ bool deerith::execute_server(const char *server_executable_path, int port)
     }
     else
     {
-        execl(server_executable_path,
+        execl(client_executable_path,
-              server_executable_path,
+              client_executable_path,
               "-p",
               "8080",
               nullptr);
 
-        deerith_error("Fatal error executing server");
+        deerith_error("fatal error executing client");
         _exit(1);
     }
 }

deerith_engine_core/src/voxels.cpp

@@ -0,0 +1,28 @@
+#include <deerith/world/voxels.h>
+
+#include <vector>
+#include <unordered_map>
+
+namespace deerith
+{
+    std::vector<voxel_type_t> voxel_type_array;
+    std::unordered_map<std::string, voxel_type_id_t> voxel_type_name_id;
+}
+
+deerith::voxel_type_id_t deerith::register_voxel_type(const voxel_type_t &type)
+{
+    voxel_type_array.push_back(type);
+    return voxel_type_array.size() - 1;
+}
+
+const deerith::voxel_type_t &deerith::get_voxel_type(deerith::voxel_type_id_t id)
+{
+    deerith_assert(id >= 0 && id < voxel_type_array.size(), "invalid get_voxel_type id");
+    return voxel_type_array[id];
+}
+
+deerith::voxel_type_id_t deerith::get_voxel_type_id(const std::string &name)
+{
+    deerith_assert(voxel_type_name_id.contains(name), "invalid get_voxel_type_id name");
+    return voxel_type_name_id[name];
+}

deerith_engine_server/CMakeLists.txt

@@ -1,13 +1,13 @@
 add_library(DeerithServer)
 
-file(GLOB_RECURSE deerith_SOURCES
+file(GLOB_RECURSE DEERITH_SOURCES
     CONFIGURE_DEPENDS
     ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp
 )
 
 target_sources(DeerithServer
     PRIVATE
-        ${deerith_SOURCES}
+        ${DEERITH_SOURCES}
 )
 
 target_include_directories(DeerithServer
@@ -21,8 +21,3 @@ target_link_libraries(DeerithServer
     PUBLIC
         DeerithCore
 )
-
-target_compile_definitions(DeerithServer
-    PUBLIC
-        DEERITH_SERVER
-)

deerith_engine_server/src/core.cpp

@@ -1,6 +1,6 @@
 #include <deerith/engine.h>
 
-#include "network/network_internals.h"
+#include <deerith/network/network_internals.h>
 
 namespace deerith
 {

deerith_engine_server/src/network/network.cpp

@@ -11,8 +11,8 @@
 #include <vector>
 #include <memory>
 
-#include "network_internals.h"
+#include <deerith/network/network_internals.h>
-#include "world/world_internals.h"
+#include <deerith/world/world_internals.h>
 
 namespace deerith
 {

deerith_engine_server/src/world/player_communication.cpp

@@ -5,8 +5,8 @@
 #include <deerith/network/router.h>
 #include <deerith/network/client.h>
 
-#include "network/network_internals.h"
+#include <deerith/network/network_internals.h>
-#include "world/world_internals.h"
+#include <deerith/world/world_internals.h>
 
 namespace deerith
 {

deerith_engine_server/src/world/world.cpp

@@ -2,8 +2,8 @@
 #include <deerith/core/log.h>
 #include <deerith/network/router.h>
 
-#include "network/network_internals.h"
+#include <deerith/network/network_internals.h>
-#include "world/world_internals.h"
+#include <deerith/world/world_internals.h>
 
 #include <deerith/world/components.h>
 #include <deerith/network/packets.h>

deerith_engine_server/src/world/world_simulation.cpp

@@ -1,4 +1,4 @@
-#include "world/world_internals.h"
+#include <deerith/world/world_internals.h>
 
 #include <deerith/world.h>
 #include <deerith/world/components.h>

sandbox/CMakeLists.txt

@@ -1,44 +1,22 @@
-file(GLOB_RECURSE SANDBOX_COMMON
+file(GLOB_RECURSE SANDBOX_RECURSE
     CONFIGURE_DEPENDS
-    src/runtime/*.cpp
+    src/*.cpp
 )
 
-file(GLOB_RECURSE SANDBOX_CLIENT
+add_executable(Sandbox
-    CONFIGURE_DEPENDS
+    ${SANDBOX_RECURSE}
-    src/client/*.cpp
 )
 
-file(GLOB_RECURSE SANDBOX_SERVER
+target_include_directories(Sandbox
-    CONFIGURE_DEPENDS
-    src/server/*.cpp
-)
-
-add_executable(SandboxClient
-    ${SANDBOX_COMMON}
-    ${SANDBOX_CLIENT}
-)
-
-target_link_libraries(SandboxClient
-    PRIVATE
-        DeerithClient
-)
-
-target_include_directories(SandboxClient
     PRIVATE
         ${CMAKE_CURRENT_SOURCE_DIR}/src
 )
 
-add_executable(SandboxServer
+target_link_libraries(Sandbox
-    ${SANDBOX_COMMON}
-    ${SANDBOX_SERVER}
-)
-
-target_include_directories(SandboxServer
-    PRIVATE
-        ${CMAKE_CURRENT_SOURCE_DIR}/src
-)
-
-target_link_libraries(SandboxServer
     PRIVATE
         DeerithServer
 )
+
+target_compile_definitions(Sandbox PRIVATE
+    $<$<CONFIG:Debug>:DEBUG>
+)

sandbox/src/main.cpp

@@ -0,0 +1,27 @@
+#include <deerith/engine.h>
+#include <deerith/world.h>
+#include <thread>
+#include <args/argh.h>
+
+int main(int argc, const char **argv)
+{
+    deerith::init_engine();
+    auto cmdl = argh::parser(argc, argv);
+
+    int port = 8080;
+    cmdl("port", 8080) >> port;
+
+#ifdef DEBUG
+    if (cmdl[{"-s", "--single"}] && !deerith::execute_client("../deerith_engine_client/DeerithClient", port))
+    {
+        deerith_error("could not start server");
+        deerith::shutdown_engine();
+        return 1;
+    }
+#endif
+
+    deerith::run_world(8080);
+
+    deerith::shutdown_executing_servers();
+    deerith::shutdown_engine();
+}