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game-test
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Kienan Stewart 2019-09-03 00:07:40 -04:00
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.gitignore vendored Normal file
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build/
CMakeFiles/

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3rdparty/glad vendored Submodule

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Subproject commit de6c39e3040c987323b8ed078c36442f4fb681b3

1
3rdparty/nuklear vendored Submodule

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Subproject commit 5d81d324c41d88ae67d6a3a91b28b3cbd74c7b61

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CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.13)
project(blah)
set(CMAKE_BUILD_TYPE Debug)
include_directories("${PROJECT_SOURCE_DIR}/src/")
#add_executable(test ${PROJECT_SOURCE_DIR}/src/test.cpp)
find_package(PkgConfig REQUIRED)
# OpenGL
find_package(OpenGL REQUIRED)
#find_package(GLEW REQUIRED)
find_package(GLUT REQUIRED)
pkg_search_module(GLFW REQUIRED glfw3)
# Glad
set(GLAD_API "gl=3.3" CACHE STRING " " FORCE)
add_subdirectory("${PROJECT_SOURCE_DIR}/3rdparty/glad")
# Nuklear
set(NUKLEAR_INCLUDE_DIR "${PROJECT_SOURCE_DIR}/3rdparty/nuklear")
#Client
#target_include_directories(client "${PROJECT_SOURCE_DIR}/src/client")
add_executable(client ${PROJECT_SOURCE_DIR}/src/client/client.cpp)
target_include_directories(client PUBLIC ${GLFW_INCLUDE_DIRS} ${GLUT_INCLUDE_DIR} ${OPENGL_INCLUDE_DIRS} ${NUKLEAR_INCLUDE_DIR} ${GLAD_INCLUDE_DIRS})
target_link_libraries(client ${GLFW_LIBRARIES} ${GLUT_LIBRARY}
${OPENGL_LIBRARIES} ${GLAD_LIBRARIES} ${CMAKE_DL_LIBS})
# Server
#target_include_directories(server "${PROJECT_SOURCE_DIR}/src/server")
add_executable(server ${PROJECT_SOURCE_DIR}/src/server/server.cpp)

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#include <math.h>
#include <stdio.h>
#include <string.h>
#include <glad/glad.h>
#include <GLFW/glfw3.h>
// Nuklear
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#define NK_GLFW_GL3_IMPLEMENTATION
#define NK_KEYSTATE_BASED_INPUT
#include <nuklear.h>
#include "nuklear_glfw_gl3.h"
#define MAX_VERTEX_BUFFER 512 * 1024
#define MAX_ELEMENT_BUFFER 128 * 1024
static void error_callback(int error, const char* description)
{
fprintf(stderr, "Error %d: %s\n", error, description);
}
int main(int argc, char** argv)
{
GLFWwindow* window;
/* Initialize the library */
glfwSetErrorCallback(error_callback);
if (!glfwInit()) {
fprintf(stdout, "[GFLW] Error: failed to init!\n");
return -1;
}
/* Create a windowed mode window and its OpenGL context */
window = glfwCreateWindow(1024, 768, "Client", NULL, NULL);
glfwSetWindowAttrib(window, GLFW_DECORATED, GLFW_TRUE);
if (!window) {
glfwTerminate();
return -1;
}
glfwMakeContextCurrent(window);
glfwSwapInterval(1); // Vsync
if (!gladLoadGL()) {
fprintf(stderr, "[GLAD] Error loading\n");
return 1;
}
int width = 0, height = 0;
struct nk_context *ctx;
ctx = nk_glfw3_init(window, NK_GLFW3_INSTALL_CALLBACKS);
{
struct nk_font_atlas *atlas;
nk_glfw3_font_stash_begin(&atlas);
nk_glfw3_font_stash_end();
}
struct nk_colorf bg;
bg.r = 0.10f, bg.g = 0.18f, bg.b = 0.24f, bg.a = 1.0f;
while(!glfwWindowShouldClose(window)) {
glfwPollEvents();
// Process input.
nk_glfw3_new_frame();
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 230, 250),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 25, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
nk_layout_row_dynamic(ctx, 20, 1);
nk_label(ctx, "background:", NK_TEXT_LEFT);
nk_layout_row_dynamic(ctx, 25, 1);
if (nk_combo_begin_color(ctx, nk_rgb_cf(bg), nk_vec2(nk_widget_width(ctx),400))) {
nk_layout_row_dynamic(ctx, 120, 1);
bg = nk_color_picker(ctx, bg, NK_RGBA);
nk_layout_row_dynamic(ctx, 25, 1);
bg.r = nk_propertyf(ctx, "#R:", 0, bg.r, 1.0f, 0.01f,0.005f);
bg.g = nk_propertyf(ctx, "#G:", 0, bg.g, 1.0f, 0.01f,0.005f);
bg.b = nk_propertyf(ctx, "#B:", 0, bg.b, 1.0f, 0.01f,0.005f);
bg.a = nk_propertyf(ctx, "#A:", 0, bg.a, 1.0f, 0.01f,0.005f);
nk_combo_end(ctx);
}
}
nk_end(ctx);
// @TODO Game tick
// Rendering
/* IMPORTANT: `nk_glfw_render` modifies some global OpenGL state
* with blending, scissor, face culling, depth test and viewport and
* defaults everything back into a default state.
* Make sure to either a.) save and restore or b.) reset your own state after
* rendering the UI. */
glfwGetWindowSize(window, &width, &height);
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(bg.r, bg.g, bg.b, bg.a);
nk_glfw3_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
glfwSwapBuffers(window);
}
nk_glfw3_shutdown();
glfwTerminate();
return 0;
}

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src/client/nuklear_glfw_gl3.h Normal file
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/*
* Nuklear - 1.32.0 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_GLFW_GL3_H_
#define NK_GLFW_GL3_H_
#include <GLFW/glfw3.h>
enum nk_glfw_init_state{
NK_GLFW3_DEFAULT=0,
NK_GLFW3_INSTALL_CALLBACKS
};
NK_API struct nk_context* nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state);
NK_API void nk_glfw3_shutdown(void);
NK_API void nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas);
NK_API void nk_glfw3_font_stash_end(void);
NK_API void nk_glfw3_new_frame(void);
NK_API void nk_glfw3_render(enum nk_anti_aliasing, int max_vertex_buffer, int max_element_buffer);
NK_API void nk_glfw3_device_destroy(void);
NK_API void nk_glfw3_device_create(void);
NK_API void nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint);
NK_API void nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff);
NK_API void nk_glfw3_mouse_button_callback(GLFWwindow *win, int button, int action, int mods);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_GLFW_GL3_IMPLEMENTATION
#ifndef NK_GLFW_TEXT_MAX
#define NK_GLFW_TEXT_MAX 256
#endif
#ifndef NK_GLFW_DOUBLE_CLICK_LO
#define NK_GLFW_DOUBLE_CLICK_LO 0.02
#endif
#ifndef NK_GLFW_DOUBLE_CLICK_HI
#define NK_GLFW_DOUBLE_CLICK_HI 0.2
#endif
struct nk_glfw_device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint vbo, vao, ebo;
GLuint prog;
GLuint vert_shdr;
GLuint frag_shdr;
GLint attrib_pos;
GLint attrib_uv;
GLint attrib_col;
GLint uniform_tex;
GLint uniform_proj;
GLuint font_tex;
};
struct nk_glfw_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
static struct nk_glfw {
GLFWwindow *win;
int width, height;
int display_width, display_height;
struct nk_glfw_device ogl;
struct nk_context ctx;
struct nk_font_atlas atlas;
struct nk_vec2 fb_scale;
unsigned int text[NK_GLFW_TEXT_MAX];
int text_len;
struct nk_vec2 scroll;
double last_button_click;
int is_double_click_down;
struct nk_vec2 double_click_pos;
} glfw;
#ifdef __APPLE__
#define NK_SHADER_VERSION "#version 150\n"
#else
#define NK_SHADER_VERSION "#version 300 es\n"
#endif
NK_API void
nk_glfw3_device_create(void)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 TexCoord;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main() {\n"
" Frag_UV = TexCoord;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
"}\n";
static const GLchar *fragment_shader =
NK_SHADER_VERSION
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main(){\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
struct nk_glfw_device *dev = &glfw.ogl;
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
glCompileShader(dev->vert_shdr);
glCompileShader(dev->frag_shdr);
glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glAttachShader(dev->prog, dev->vert_shdr);
glAttachShader(dev->prog, dev->frag_shdr);
glLinkProgram(dev->prog);
glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
assert(status == GL_TRUE);
dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
{
/* buffer setup */
GLsizei vs = sizeof(struct nk_glfw_vertex);
size_t vp = offsetof(struct nk_glfw_vertex, position);
size_t vt = offsetof(struct nk_glfw_vertex, uv);
size_t vc = offsetof(struct nk_glfw_vertex, col);
glGenBuffers(1, &dev->vbo);
glGenBuffers(1, &dev->ebo);
glGenVertexArrays(1, &dev->vao);
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glEnableVertexAttribArray((GLuint)dev->attrib_pos);
glEnableVertexAttribArray((GLuint)dev->attrib_uv);
glEnableVertexAttribArray((GLuint)dev->attrib_col);
glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
}
glBindTexture(GL_TEXTURE_2D, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
NK_INTERN void
nk_glfw3_device_upload_atlas(const void *image, int width, int height)
{
struct nk_glfw_device *dev = &glfw.ogl;
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
NK_API void
nk_glfw3_device_destroy(void)
{
struct nk_glfw_device *dev = &glfw.ogl;
glDetachShader(dev->prog, dev->vert_shdr);
glDetachShader(dev->prog, dev->frag_shdr);
glDeleteShader(dev->vert_shdr);
glDeleteShader(dev->frag_shdr);
glDeleteProgram(dev->prog);
glDeleteTextures(1, &dev->font_tex);
glDeleteBuffers(1, &dev->vbo);
glDeleteBuffers(1, &dev->ebo);
nk_buffer_free(&dev->cmds);
}
NK_API void
nk_glfw3_render(enum nk_anti_aliasing AA, int max_vertex_buffer, int max_element_buffer)
{
struct nk_glfw_device *dev = &glfw.ogl;
struct nk_buffer vbuf, ebuf;
GLfloat ortho[4][4] = {
{2.0f, 0.0f, 0.0f, 0.0f},
{0.0f,-2.0f, 0.0f, 0.0f},
{0.0f, 0.0f,-1.0f, 0.0f},
{-1.0f,1.0f, 0.0f, 1.0f},
};
ortho[0][0] /= (GLfloat)glfw.width;
ortho[1][1] /= (GLfloat)glfw.height;
/* setup global state */
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
/* setup program */
glUseProgram(dev->prog);
glUniform1i(dev->uniform_tex, 0);
glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
glViewport(0,0,(GLsizei)glfw.display_width,(GLsizei)glfw.display_height);
{
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
void *vertices, *elements;
const nk_draw_index *offset = NULL;
/* allocate vertex and element buffer */
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glBufferData(GL_ARRAY_BUFFER, max_vertex_buffer, NULL, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, max_element_buffer, NULL, GL_STREAM_DRAW);
/* load draw vertices & elements directly into vertex + element buffer */
vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
{
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_glfw_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* setup buffers to load vertices and elements */
nk_buffer_init_fixed(&vbuf, vertices, (size_t)max_vertex_buffer);
nk_buffer_init_fixed(&ebuf, elements, (size_t)max_element_buffer);
nk_convert(&glfw.ctx, &dev->cmds, &vbuf, &ebuf, &config);
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
/* iterate over and execute each draw command */
nk_draw_foreach(cmd, &glfw.ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x * glfw.fb_scale.x),
(GLint)((glfw.height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * glfw.fb_scale.y),
(GLint)(cmd->clip_rect.w * glfw.fb_scale.x),
(GLint)(cmd->clip_rect.h * glfw.fb_scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(&glfw.ctx);
}
/* default OpenGL state */
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
}
NK_API void
nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint)
{
(void)win;
if (glfw.text_len < NK_GLFW_TEXT_MAX)
glfw.text[glfw.text_len++] = codepoint;
}
NK_API void
nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff)
{
(void)win; (void)xoff;
glfw.scroll.x += (float)xoff;
glfw.scroll.y += (float)yoff;
}
NK_API void
nk_glfw3_mouse_button_callback(GLFWwindow* window, int button, int action, int mods)
{
double x, y;
if (button != GLFW_MOUSE_BUTTON_LEFT) return;
glfwGetCursorPos(window, &x, &y);
if (action == GLFW_PRESS) {
double dt = glfwGetTime() - glfw.last_button_click;
if (dt > NK_GLFW_DOUBLE_CLICK_LO && dt < NK_GLFW_DOUBLE_CLICK_HI) {
glfw.is_double_click_down = nk_true;
glfw.double_click_pos = nk_vec2((float)x, (float)y);
}
glfw.last_button_click = glfwGetTime();
} else glfw.is_double_click_down = nk_false;
}
NK_INTERN void
nk_glfw3_clipboard_paste(nk_handle usr, struct nk_text_edit *edit)
{
const char *text = glfwGetClipboardString(glfw.win);
if (text) nk_textedit_paste(edit, text, nk_strlen(text));
(void)usr;
}
NK_INTERN void
nk_glfw3_clipboard_copy(nk_handle usr, const char *text, int len)
{
char *str = 0;
(void)usr;
if (!len) return;
str = (char*)malloc((size_t)len+1);
if (!str) return;
memcpy(str, text, (size_t)len);
str[len] = '\0';
glfwSetClipboardString(glfw.win, str);
free(str);
}
NK_API struct nk_context*
nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state init_state)
{
glfw.win = win;
if (init_state == NK_GLFW3_INSTALL_CALLBACKS) {
glfwSetScrollCallback(win, nk_gflw3_scroll_callback);
glfwSetCharCallback(win, nk_glfw3_char_callback);
glfwSetMouseButtonCallback(win, nk_glfw3_mouse_button_callback);
}
nk_init_default(&glfw.ctx, 0);
glfw.ctx.clip.copy = nk_glfw3_clipboard_copy;
glfw.ctx.clip.paste = nk_glfw3_clipboard_paste;
glfw.ctx.clip.userdata = nk_handle_ptr(0);
glfw.last_button_click = 0;
nk_glfw3_device_create();
glfw.is_double_click_down = nk_false;
glfw.double_click_pos = nk_vec2(0, 0);
return &glfw.ctx;
}
NK_API void
nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas)
{
nk_font_atlas_init_default(&glfw.atlas);
nk_font_atlas_begin(&glfw.atlas);
*atlas = &glfw.atlas;
}
NK_API void
nk_glfw3_font_stash_end(void)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&glfw.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
nk_glfw3_device_upload_atlas(image, w, h);
nk_font_atlas_end(&glfw.atlas, nk_handle_id((int)glfw.ogl.font_tex), &glfw.ogl.null);
if (glfw.atlas.default_font)
nk_style_set_font(&glfw.ctx, &glfw.atlas.default_font->handle);
}
NK_API void
nk_glfw3_new_frame(void)
{
int i;
double x, y;
struct nk_context *ctx = &glfw.ctx;
struct GLFWwindow *win = glfw.win;
glfwGetWindowSize(win, &glfw.width, &glfw.height);
glfwGetFramebufferSize(win, &glfw.display_width, &glfw.display_height);
glfw.fb_scale.x = (float)glfw.display_width/(float)glfw.width;
glfw.fb_scale.y = (float)glfw.display_height/(float)glfw.height;
nk_input_begin(ctx);
for (i = 0; i < glfw.text_len; ++i)
nk_input_unicode(ctx, glfw.text[i]);
#ifdef NK_GLFW_GL3_MOUSE_GRABBING
/* optional grabbing behavior */
if (ctx->input.mouse.grab)
glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
else if (ctx->input.mouse.ungrab)
glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
#endif
nk_input_key(ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_DOWN, glfwGetKey(win, GLFW_KEY_PAGE_DOWN) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_UP, glfwGetKey(win, GLFW_KEY_PAGE_UP) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SHIFT, glfwGetKey(win, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS||
glfwGetKey(win, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS);
if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
nk_input_key(ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_V) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_UNDO, glfwGetKey(win, GLFW_KEY_Z) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_REDO, glfwGetKey(win, GLFW_KEY_R) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, glfwGetKey(win, GLFW_KEY_B) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
} else {
nk_input_key(ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_COPY, 0);
nk_input_key(ctx, NK_KEY_PASTE, 0);
nk_input_key(ctx, NK_KEY_CUT, 0);
nk_input_key(ctx, NK_KEY_SHIFT, 0);
}
glfwGetCursorPos(win, &x, &y);
nk_input_motion(ctx, (int)x, (int)y);
#ifdef NK_GLFW_GL3_MOUSE_GRABBING
if (ctx->input.mouse.grabbed) {
glfwSetCursorPos(glfw.win, ctx->input.mouse.prev.x, ctx->input.mouse.prev.y);
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
}
#endif
nk_input_button(ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_DOUBLE, (int)glfw.double_click_pos.x, (int)glfw.double_click_pos.y, glfw.is_double_click_down);
nk_input_scroll(ctx, glfw.scroll);
nk_input_end(&glfw.ctx);
glfw.text_len = 0;
glfw.scroll = nk_vec2(0,0);
}
NK_API
void nk_glfw3_shutdown(void)
{
nk_font_atlas_clear(&glfw.atlas);
nk_free(&glfw.ctx);
nk_glfw3_device_destroy();
memset(&glfw, 0, sizeof(glfw));
}
#endif

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src/server/server.cpp Normal file
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#include <stdio.h>
#include <string.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#define SERVER_UDP_PORT 2800
#define UDP_PACKET_SIZE 500
#define UDP_BUFFER_SIZE 10000
int main(int argc, char** argv) {
int fd;
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
perror("cannot create socket");
return -1;
}
struct sockaddr_in sin;
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(INADDR_ANY);
sin.sin_port = htons(SERVER_UDP_PORT);
if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
perror("bind failed");
return -1;
}
unsigned char buf[UDP_PACKET_SIZE];
int recvlen;
struct sockaddr_in remote_address;
socklen_t addrlen = sizeof(remote_address);
for (;;) {
printf("waiting on port %d\n", SERVER_UDP_PORT);
recvlen = recvfrom(fd, buf, UDP_PACKET_SIZE, 0,
(struct sockaddr *) &remote_address,
&addrlen);
if (recvlen > 0) {
buf[recvlen] = 0;
printf("received message: \"%s\"\n", buf);
}
}
}

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src/test.cpp Normal file
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#include <math.h>
#include <stdio.h>
#include <GL/glew.h>
#include <GL/freeglut.h>
static void RenderSceneCB()
{
glClear(GL_COLOR_BUFFER_BIT);
glutSwapBuffers();
}
static void InitializeGlutCallbacks()
{
glutDisplayFunc(RenderSceneCB);
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGBA);
glutInitWindowSize(1024, 768);
glutInitWindowPosition(100, 100);
glutCreateWindow("Tutorial 01");
InitializeGlutCallbacks();
GLenum res = glewInit();
if (res != GLEW_OK)
{
fprintf(stderr, "Error: '%s'\n", glewGetErrorString(res));
return 1;
}
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glutMainLoop();
return 0;
}