added various displays (coords, triangles count) + added 1 culling function

.vscode/settings.json

@@ -14,6 +14,8 @@
         "move.h": "c",
         "hash.h": "c",
         "proj.h": "c",
-        "entities.h": "c"
+        "entities.h": "c",
+        "menus.h": "c",
+        "structure.h": "c"
     }
 }

Makefile

@@ -1,6 +1,6 @@
 CC = gcc
 FLAGS = -O2 -Wall -Wextra -g
-LFLAGS = -lm -lncurses src/glad.c -ldl -lglfw -lcglm 
+LFLAGS = -lm src/glad.c -ldl -lglfw -lcglm 
 
 all: bin/back
 

src/base.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>
@@ -231,6 +230,20 @@ teleporter* create_teleporter(
     return tp ;
 }
 
+void copy_cube(cube_0* src, cube_0* dest) {
+    dest->red = src->red;
+    dest->green = src->green;
+    dest->blue = src->blue;
+    dest->hz_angle = src->hz_angle;
+    dest->vt_angle = src->vt_angle;
+    dest->x = src->x;
+    dest->y = src->y;
+    dest->z = src->z;
+    dest->w = src->w;
+    dest->h = src->h;
+    dest->d = src->d;
+}
+
 // ------------------------------------------------------------------------------------------------ //
 
 double distance_pt_pt_3d(double x0, double y0, double z0, double x1, double y1, double z1) {
@@ -313,54 +326,31 @@ void project_to_camera(double x0, double y0, double z0, double* rx, double* ry,
     double z = z0 - camz ;
 
     // rotate (y)
-    double xry = x*cos(rot_hz) + z*sin(rot_hz) ;
+    double xry = x*cos(rot_hz) - z*sin(rot_hz) ;
     double yry = y ;
-    double zry = z*cos(rot_hz) - x*sin(rot_hz) ;
+    double zry = z*cos(rot_hz) + x*sin(rot_hz) ;
 
     // rotate (x)
     if(rx != NULL) {*rx = xry ;}
-    if(ry != NULL) {*ry = yry*cos(rot_vt) - zry*sin(rot_vt) ;}
+    if(ry != NULL) {*ry = yry*cos(rot_vt) + zry*sin(rot_vt) ;}
-    if(rz != NULL) {*rz = zry*cos(rot_vt) + yry*sin(rot_vt) ;}
+    if(rz != NULL) {*rz = zry*cos(rot_vt) - yry*sin(rot_vt) ;}
 }
 
-void project_to_cube(double x0, double y0, double z0, double* rx, double* ry, double* rz, cube_0 c) {
+void project_to_cube(double x0, double y0, double z0, double* rx, double* ry, double* rz, cube_0* c) {
     // align pt to (0, 0, 0)
-    double x = x0 - (c.x + c.w/2.0) ;
+    double x = x0 - (c->x + c->w/2.0) ;
-    double y = y0 - (c.y + c.h/2.0) ;
+    double y = y0 - (c->y + c->h/2.0) ;
-    double z = z0 - (c.z + c.d/2.0) ;
+    double z = z0 - (c->z + c->d/2.0) ;
 
     // rotate (y)
-    double xry = x*cos(c.hz_angle) + z*sin(c.hz_angle) ;
+    double xry = x*cos(c->hz_angle) + z*sin(c->hz_angle) ;
     double yry = y ;
-    double zry = z*cos(c.hz_angle) - x*sin(c.hz_angle) ;
+    double zry = z*cos(c->hz_angle) - x*sin(c->hz_angle) ;
 
     // rotate (x)
-    if(rx != NULL) {*rx = xry ;}
+    if(rx != NULL) {*rx = c->x + c->w/2.0 + xry ;}
-    if(ry != NULL) {*ry = yry*cos(c.vt_angle) - zry*sin(c.vt_angle);}
+    if(ry != NULL) {*ry = c->y + c->h/2.0 + yry*cos(c->vt_angle) - zry*sin(c->vt_angle);}
-    if(rz != NULL) {*rz = zry*cos(c.vt_angle) + yry*sin(c.vt_angle);}
+    if(rz != NULL) {*rz = c->z + c->d/2.0 + zry*cos(c->vt_angle) + yry*sin(c->vt_angle);}
-}
-
-double dist_to_cam_cube(double x0, double y0, double z0, cube_0 c) {
-    double px0, py0, pz0;
-    project_to_cube(x0, y0, z0, &px0, &py0, &pz0, c);
-    return distance_pt_pt_3d(px0 + c.x + c.w/2.0, py0 + c.y + c.h/2.0, pz0 + c.z + c.d/2.0, camx, camy, camz);
-}
-
-bool pt_equal_3D(pt_2d p1, pt_2d p2) {
-    return (p1.x == p2.x && p1.y == p2.y && p1.z == p2.z);
-}
-
-bool pt_equal_2D(pt_2d p1, pt_2d p2) {
-    return (p1.x == p2.x && p1.y == p2.y);
-}
-
-bool pt_equal_3D_eps(pt_2d p1, pt_2d p2, double epsilon) {
-    return (absf(p1.x - p2.x) <= epsilon && absf(p1.y - p2.y) <= epsilon && absf(p1.z - p2.z) <= epsilon);
-}
-
-bool pt_equal_2D_eps(pt_2d p1, pt_2d p2, double epsilon, bool debug0) {
-    if(debug0) {printf("(%lf, %lf)\n", absf(p1.x - p2.x), absf(p1.y - p2.y));}
-    return (absf(p1.x - p2.x) <= epsilon && absf(p1.y - p2.y) <= epsilon);
 }
 
 // ------------------------------------------------------------------------------------------------ //

src/base.h

@@ -37,6 +37,7 @@ teleporter* create_teleporter(
     double x, double y, double z, double w, double h, double d, double hz_a, double vt_a, int r, int g, int b,
     int chx_dest, int chy_dest, double x_dest, double y_dest, double z_dest
 );
+void copy_cube(cube_0* src, cube_0* dest);
 
 double convex_pt(double a, double b, double theta);
 double distance_pt_pt_3d(double x0, double y0, double z0, double x1, double y1, double z1);
@@ -58,7 +59,6 @@ void remove_entity(entity** arr, int* memlen, int* len, int index);
 void add_entity(entity** arr, int* memlen, int* len, entity ent);
 
 void project_to_camera(double x0, double y0, double z0, double* rx, double* ry, double* rz);
-void project_to_cube(double x0, double y0, double z0, double* rx, double* ry, double* rz, cube_0 c);
+void project_to_cube(double x0, double y0, double z0, double* rx, double* ry, double* rz, cube_0* c);
-double dist_to_cam_cube(double x0, double y0, double z0, cube_0 c);
 
 #endif

src/bullets.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>

src/display.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>
@@ -16,6 +15,7 @@
 #include "structure.h"
 #include "base.h"
 #include "move.h"
+#include "menus.h"
 #include "proj.h"
 #include "entities.h"
 #include "generation.h"
@@ -136,21 +136,40 @@ void gl_renderCube(unsigned int shaderProgram, unsigned int fragmentShader, unsi
     glUniform4f(glGetUniformLocation(fragmentShader, "u_color"), c->red/255.0f, c->green/255.0f, c->blue/255.0f, 1.0f);
 
     glDrawArrays(GL_TRIANGLES, 0, 36);
+    triCount += 12;
+}
+
+double px, py, pz, pz2;
+bool is_visible(cube_0* cb, double offx, double offy, double offz) {
+    for(int d = 0; d < 8; d++) {
+        project_to_cube(cb->x+cb->w*(d%2==0)+offx, cb->y+cb->h*((d/2)%2==0)+offy, cb->z+cb->d*((d/4)%2==0)+offz, &px, &py, &pz, cb);
+        project_to_camera(px, py, pz, NULL, NULL, &pz2);
+        if(pz2 > near) {
+            return true;
+        }
+    }
+    return false;
 }
 
 void gl_renderAll(unsigned int shaderProgram, unsigned int fragmentShader, unsigned int VAO, unsigned int VBO, room* rtd, double offx, double offy, double offz) {
     if(rtd != NULL) {
         for(int k = 0; k < rtd->map_size; k++) {
+            if(is_visible(rtd->map[k], offx, offy, offz)) {
                 gl_renderCube(shaderProgram, fragmentShader, VAO, VBO, rtd->map[k], offx, offy, offz);
             }
+        }
         for(int k = 0; k < rtd->tps_size; k++) {
+            if(is_visible(rtd->tps[k]->hitbox, offx, offy, offz)) {
                 gl_renderCube(shaderProgram, fragmentShader, VAO, VBO, rtd->tps[k]->hitbox, offx, offy, offz);
             }
+        }
         for(int k = 0; k < rtd->ent_len; k++) {
+            if(is_visible(rtd->ents[k].pos, offx, offy, offz)) {
                 gl_renderCube(shaderProgram, fragmentShader, VAO, VBO, rtd->ents[k].pos, offx, offy, offz);
             }
         }
     }
+}
 
 void gl_renderNearbyChunks(unsigned int shaderProgram, unsigned int fragmentShader, unsigned int VAO, unsigned int VBO, int render_distance) {
     for(int w = -render_distance; w <= render_distance; w++) {
@@ -174,12 +193,12 @@ void gl_initRender(unsigned int shaderProgram, unsigned int fragmentShader, unsi
     glm_lookat((vec3){(float)camx, (float)camy, (float)camz}, direction, (vec3){0.0f, 1.0f, 0.0f}, view);
 
     glm_perspective(glm_rad((float)fov), 1500.0f / 1000.0f, 0.1f, 100.0f, projection);
-
-    glUseProgram(shaderProgram);
-
-    //glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_DYNAMIC_DRAW);
 }
 
-void gl_drawTriangle() {
+void gl_drawData(unsigned int shaderProg) {
+    gl_drawInteger(shaderProg, (int)camx, 0.95f, 0.9f, 0.05f, 255, 255, 255, 0.005, -1);
+    gl_drawInteger(shaderProg, (int)camy, 0.95f, 0.75f, 0.05f, 255, 255, 255, 0.005, -1);
+    gl_drawInteger(shaderProg, (int)camz, 0.95f, 0.6f, 0.05f, 255, 255, 255, 0.005, -1);
 
+    gl_drawInteger(shaderProg, player_hp, -0.95f, 0.9f, 0.05f, 255-player_hp/4, player_hp/4, 0, 0.005f, 1);
 }

src/display.h

@@ -8,4 +8,6 @@ void gl_renderNearbyChunks(unsigned int shaderProgram, unsigned int fragmentShad
 void gl_initRender(unsigned int shaderProgram, unsigned int fragmentShader, unsigned int VAO, unsigned int VBO);
 void init_vertices();
 
+void gl_drawData(unsigned int shaderProg);
+
 #endif

src/entities.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>

src/generation.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>
@@ -424,6 +423,35 @@ void parse_rooms(int n_rooms) {
     free(name);
 }
 
+int divider = 8;
+void generate_terrain(room* r) {
+    int rsize = 4*(room_width/divider)*(room_width/divider)*(room_depth/divider)*(room_depth/divider); // floor size (with 1x1 cubes)
+
+    cube** newMap = malloc(sizeof(cube_0*)*(rsize+r->map_size));
+    for(int k = 0; k < rsize+r->map_size; k++) {
+        newMap[k] = malloc(sizeof(cube_0));
+        
+    }
+
+    for(int k = 0; k < r->map_size; k++) {
+        copy_cube(r->map[k], newMap[k]);
+        free(r->map[k]);
+    }
+    free(r->map);
+
+    // use whatever noise funtcion here
+    int i = r->map_size;
+    for(int l = -room_width; l < room_width; l+=divider) {
+        for(int d = -room_depth; d < room_depth; d+=divider) {
+            newMap[i] = create_cube_0((double)l, -20.0, (double)d, (double)divider, 1.0, (double)divider, 0.0, 0.0,32, 128, 32);
+            i+=1;
+        }
+    }
+
+    r->map = newMap;
+    r->map_size += rsize;
+}
+
 void generate_nearby_chunks(int render_dist) {
     for(int w = -render_dist; w <= render_dist; w++) {
         for(int h = -render_dist; h <= render_dist; h++) {
@@ -438,6 +466,7 @@ void generate_nearby_chunks(int render_dist) {
                         printf("chose %d\n", k);
                         room* new = malloc(sizeof(room));
                         copy_room(pool[k].area, new, player_chx + w, player_chy + h);
+                        generate_terrain(new);
                         hashtbl_add(visited, player_chx + w, player_chy + h, new);
                         k = pool_size+1;
                     }

src/hash.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>

src/main.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>
@@ -15,12 +14,14 @@
 #include "structure.h"
 #include "base.h"
 #include "move.h"
+#include "menus.h"
 #include "proj.h"
 #include "entities.h"
 #include "display.h"
 #include "generation.h"
 
 double sim_time ;
+int triCount;
 
 void processInput(GLFWwindow *window, float dtime) {
     if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS) {
@@ -112,6 +113,21 @@ const char *fragmentShaderSource = "#version 330 core\n"
     "   FragColor = u_color;\n"
     "}\0";
 
+const char *vertexShaderSourceR = "#version 330 core\n"
+    "layout (location = 0) in vec3 aPos;\n"
+    "uniform mat4 scale;\n"
+    "uniform mat4 slide;\n"
+    "void main() {\n"
+    "   gl_Position = slide * scale * vec4(aPos.x, aPos.y, aPos.z, 1.0);\n"
+    "}\0";
+
+const char *fragmentShaderSourceR = "#version 330 core\n"
+    "uniform vec4 u_color2;\n"
+    "out vec4 FragColor;\n"
+    "void main() {\n"
+    "   FragColor = u_color2;\n"
+    "}\0";
+
 int main_alt() {
     // glfw: initialize and configure
     // ------------------------------
@@ -122,7 +138,7 @@ int main_alt() {
 
     // glfw window creation
     // --------------------
-    GLFWwindow* window = glfwCreateWindow(1500, 1000, "LearnOpenGL", NULL, NULL);
+    GLFWwindow* window = glfwCreateWindow(1500, 1000, "yahoo", NULL, NULL);
     if (window == NULL)
     {
         fprintf(stderr, "ERROR : cannot initialize GL window");
@@ -144,7 +160,14 @@ int main_alt() {
     glCullFace(GL_FRONT); 
     glDepthFunc(GL_LESS);
 
-    //printf("%f\n", glDepthRange);
+    init_csts();
+    init_hashtbl();
+    init_ent_generator(10);
+    init_proj();
+    parse_rooms(5);
+
+    // ---------------------------------------------------------------------------------------------------------------------------------------------- //
+    // ---------------------------------------------------------------------------------------------------------------------------------------------- //
 
     // build and compile our shader program
     // ------------------------------------
@@ -161,6 +184,7 @@ int main_alt() {
         glGetShaderInfoLog(vertexShader, 512, NULL, infoLog);
         fprintf(stderr, "ERROR : cannot initialize shader (1)");
     }
+
     // fragment shader
     unsigned int fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
     glShaderSource(fragmentShader, 1, &fragmentShaderSource, NULL);
@@ -170,31 +194,98 @@ int main_alt() {
     if (!success)
     {
         glGetShaderInfoLog(fragmentShader, 512, NULL, infoLog);
-        fprintf(stderr, "ERROR : cannot initialize shader (2)");
+        fprintf(stderr, "ERROR : cannot initialize shader (3)");
     }
+
     // link shaders
     unsigned int shaderProgram = glCreateProgram();
     glAttachShader(shaderProgram, vertexShader);
     glAttachShader(shaderProgram, fragmentShader);
     glLinkProgram(shaderProgram);
-    // check for linking errors
-    glGetProgramiv(shaderProgram, GL_LINK_STATUS, &success);
-    if (!success) {
-        glGetProgramInfoLog(shaderProgram, 512, NULL, infoLog);
-        fprintf(stderr, "ERROR : cannot link shaders");
-    }
 
     glDeleteShader(vertexShader);
     glDeleteShader(fragmentShader);
 
-    // set up data (buffer(s)) and configure vertex attributes
+    // main VAO/VBO
-    // ------------------------------------------------------------------
+    unsigned int VBO, VAO;
+    glGenVertexArrays(1, &VAO);
+    glGenBuffers(1, &VBO);
+    // bind the Vertex Array Object first, then bind and set vertex buffer(s), and then configure vertex attributes(s).
+    glBindVertexArray(VAO);
 
-    init_csts();
+    init_vertices();
-    init_hashtbl();
+
-    init_ent_generator(10);
+    glBindBuffer(GL_ARRAY_BUFFER, VBO);
-    init_proj();
+    glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
-    parse_rooms(5);
+
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
+    glEnableVertexAttribArray(0);
+
+    // ---------------------------------------------------------------------------------------------------------------------------------------------- //
+    // ---------------------------------------------------------------------------------------------------------------------------------------------- //
+
+    // build and compile our shader program
+    // ------------------------------------
+    // vertex shader
+    unsigned int vertexShaderR = glCreateShader(GL_VERTEX_SHADER);
+    glShaderSource(vertexShaderR, 1, &vertexShaderSourceR, NULL);
+    glCompileShader(vertexShaderR);
+    // check for shader compile errors
+    glGetShaderiv(vertexShaderR, GL_COMPILE_STATUS, &success);
+    if (!success)
+    {
+        glGetShaderInfoLog(vertexShaderR, 512, NULL, infoLog);
+        //std::cout << "ERROR::SHADER::VERTEX::COMPILATION_FAILED\n" << infoLog << std::endl;
+    }
+    // fragment shader
+    unsigned int fragmentShaderR = glCreateShader(GL_FRAGMENT_SHADER);
+    glShaderSource(fragmentShaderR, 1, &fragmentShaderSourceR, NULL);
+    glCompileShader(fragmentShaderR);
+    // check for shader compile errors
+    glGetShaderiv(fragmentShaderR, GL_COMPILE_STATUS, &success);
+    if (!success)
+    {
+        glGetShaderInfoLog(fragmentShaderR, 512, NULL, infoLog);
+        //std::cout << "ERROR::SHADER::FRAGMENT::COMPILATION_FAILED\n" << infoLog << std::endl;
+    }
+    // link shaders
+    unsigned int shaderProgramR = glCreateProgram();
+    glAttachShader(shaderProgramR, vertexShaderR);
+    glAttachShader(shaderProgramR, fragmentShaderR);
+    glLinkProgram(shaderProgramR);
+    // check for linking errors
+    glGetProgramiv(shaderProgram, GL_LINK_STATUS, &success);
+    if (!success) {
+        glGetProgramInfoLog(shaderProgramR, 512, NULL, infoLog);
+        //std::cout << "ERROR::SHADER::PROGRAM::LINKING_FAILED\n" << infoLog << std::endl;
+    }
+    glDeleteShader(vertexShaderR);
+    glDeleteShader(fragmentShaderR);
+
+    // rectangle VAO/VBO
+    initMenus();
+
+    unsigned int RVBO, RVAO;
+    glGenVertexArrays(1, &RVAO);
+    glGenBuffers(1, &RVBO);
+    // bind the Vertex Array Object first, then bind and set vertex buffer(s), and then configure vertex attributes(s).
+    glBindVertexArray(RVAO);
+
+    glBindBuffer(GL_ARRAY_BUFFER, RVBO);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(rectDefault), rectDefault, GL_STATIC_DRAW);
+
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
+    glEnableVertexAttribArray(0);
+
+    // note that this is allowed, the call to glVertexAttribPointer registered VBO as the vertex attribute's bound vertex buffer object so afterwards we can safely unbind
+    glBindBuffer(GL_ARRAY_BUFFER, 0); 
+
+    // You can unbind the VAO afterwards so other VAO calls won't accidentally modify this VAO, but this rarely happens. Modifying other
+    // VAOs requires a call to glBindVertexArray anyways so we generally don't unbind VAOs (nor VBOs) when it's not directly necessary.
+    glBindVertexArray(0); 
+
+    // ---------------------------------------------------------------------------------------------------------------------------------------------- //
+    // ---------------------------------------------------------------------------------------------------------------------------------------------- //
 
     int fps = 60 ;
     int interval = 1000000/fps ;
@@ -202,45 +293,40 @@ int main_alt() {
     clock_t finish = clock();
     clock_t origin = clock();
 
-    unsigned int VBO, VAO;
+    while(!glfwWindowShouldClose(window) && player_hp >= 0) {
-    glGenVertexArrays(1, &VAO);
-    glGenBuffers(1, &VBO);
-
-    glBindVertexArray(VAO);
-
-    init_vertices();
-
-    glBindBuffer(GL_ARRAY_BUFFER, VBO);
-    glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_DYNAMIC_DRAW);
-
-    // position attribute
-    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3*sizeof(float), (void*)0);
-    glEnableVertexAttribArray(0);
-
-    while(!glfwWindowShouldClose(window)) {
         // input
         // -----
         glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+        triCount = 0;
         origin = clock();
 
         generate_nearby_chunks(1);
 
+        // draw the map
+        glUseProgram(shaderProgram);
         glBindVertexArray(VAO);
-        glBindBuffer(GL_ARRAY_BUFFER, VBO);
+
         gl_initRender(shaderProgram, shaderProgram, VAO, VBO);
-        //gl_renderAll(shaderProgram, shaderProgram, VAO, VBO, current_room, 0.0, 0.0, 0.0);
         gl_renderNearbyChunks(shaderProgram, shaderProgram, VAO, VBO, 1);
         gl_renderProj(shaderProgram, shaderProgram, VAO, VBO);
 
+        // draw data
+        glUseProgram(shaderProgramR);
+        glBindVertexArray(RVAO);
+
+        finish = clock();
+        gl_drawInteger(shaderProgramR, (int)(1.0f/(((float)finish - (float)origin)/CLOCKS_PER_SEC)), 0.9f, -0.85f, 0.05, 32, 255, 32, 0.005, -1);
+        gl_drawInteger(shaderProgramR, triCount, 0.0f, 0.92f, 0.04f, 128, 128, 128, 0.005f, 1);
+        gl_drawData(shaderProgramR);
+
         // glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
         // -------------------------------------------------------------------------------
-        finish = clock();
         processInput(window, ((float)finish - (float)origin)/CLOCKS_PER_SEC);
         teleport_on_edge();
         update_entities(((float)finish - (float)origin)/CLOCKS_PER_SEC);
         updateProj(((float)finish - (float)origin)/CLOCKS_PER_SEC);
-        printf("%f\n", 1.0f/(((float)finish - (float)origin)/CLOCKS_PER_SEC));
+        //printf("%f\n", 1.0f/(((float)finish - (float)origin)/CLOCKS_PER_SEC));
         //printf("%lf, %lf, %lf\n", camx, camy, camz);
 
         usleep(interval);
@@ -269,5 +355,6 @@ int main_alt() {
 
 int main(int argc, char** argv) {
     srand(time(NULL));
+    triCount = 0;
     return main_alt();
 }

src/menus.c

@@ -3,11 +3,14 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>
 #include <time.h>
+#include <glad/glad.h>
+#include "../include/glad/glad.h"
+//#include <GLFW/glfw3.h>
+#include <cglm/cglm.h>
 
 #include "hash.h"
 #include "structure.h"
@@ -15,3 +18,117 @@
 #include "entities.h"
 #include "menus.h"
 
+float rectDefault[18] ;
+
+static mat4 scale, slide;
+void initMenus() {
+    rectDefault[0]  = -0.5f; rectDefault[1]  = -0.5f; rectDefault[2]  = -1.0f;
+    rectDefault[3]  = -0.5f; rectDefault[4]  =  0.5f; rectDefault[5]  = -1.0f;
+    rectDefault[6]  =  0.5f; rectDefault[7]  =  0.5f; rectDefault[8]  = -1.0f;
+
+    rectDefault[9]  = -0.5f; rectDefault[10] = -0.5f; rectDefault[11] = -1.0f;
+    rectDefault[12] =  0.5f; rectDefault[13] =  0.5f; rectDefault[14] = -1.0f;
+    rectDefault[15] =  0.5f; rectDefault[16] = -0.5f; rectDefault[17] = -1.0f;
+}
+
+void gl_drawRect(unsigned int fragShader, float x, float y, float w, float h, int r, int g, int b) {
+    glm_mat4_identity(scale);
+    glm_mat4_identity(slide);
+
+    scale[0][0] = w;
+    scale[1][1] = h;
+    scale[2][2] = 0.5f;
+
+    glm_translate(slide, (vec3){x+w/2, y+h/2, 0.0f});
+
+    glUniformMatrix4fv(glGetUniformLocation(fragShader, "scale"), 1, GL_FALSE, (float*)scale);
+    glUniformMatrix4fv(glGetUniformLocation(fragShader, "slide"), 1, GL_FALSE, (float*)slide);
+    glUniform4f(glGetUniformLocation(fragShader, "u_color2"), r/255.0f, g/255.0f, b/255.0f, 0.5f);
+
+    glDrawArrays(GL_TRIANGLES, 0, 6);
+}
+
+void gl_drawDigit(unsigned int fragShader, int n, float x, float y, float size, int r, int g, int b, float width) {
+    assert(n >= 0 && n < 10);
+    if(n == 0) {
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, 2*width, 2*size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y+size-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x+size/2-width, y-size-width, 2*width, 2*size+2*width, r, g, b);
+    } else if(n == 1) {
+        gl_drawRect(fragShader, x+size/2-width, y-size-width, 2*width, 2*size+2*width, r, g, b);
+    } else if(n == 2) {
+        gl_drawRect(fragShader, x-size/2-width, y+size-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x+size/2-width, y-width, 2*width, size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, 2*width, size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, size+2*width, 2*width, r, g, b);
+    } else if(n == 3) {
+        gl_drawRect(fragShader, x-size/2-width, y+size-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x+size/2-width, y-width, 2*width, size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x+size/2-width, y-size-width, 2*width, size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, size+2*width, 2*width, r, g, b);
+    } else if(n == 4) {
+        gl_drawRect(fragShader, x+size/2-width, y-size-width, 2*width, 2*size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, 2*width, size+2*width, r, g, b);
+    } else if(n == 5) {
+        gl_drawRect(fragShader, x-size/2-width, y+size-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, 2*width, size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x+size/2-width, y-size-width, 2*width, size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, size+2*width, 2*width, r, g, b);
+    } else if(n == 6) {
+        gl_drawRect(fragShader, x-size/2-width, y+size-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, 2*width, 2*size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x+size/2-width, y-size-width, 2*width, size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, size+2*width, 2*width, r, g, b);
+    } else if(n == 7) {
+        gl_drawRect(fragShader, x-size/2-width, y+size-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, 2*width, size+2*width, r, g, b);
+        gl_drawRect(fragShader, x+size/2-width, y-size-width, 2*width, 2*size+2*width, r, g, b);
+    } else if(n == 8) {
+        gl_drawRect(fragShader, x-size/2-width, y+size-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, 2*width, 2*size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x+size/2-width, y-size-width, 2*width, 2*size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, size+2*width, 2*width, r, g, b);
+    } else {
+        gl_drawRect(fragShader, x-size/2-width, y+size-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, 2*width, size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-width, size+2*width, 2*width, r, g, b);
+        gl_drawRect(fragShader, x+size/2-width, y-size-width, 2*width, 2*size+2*width, r, g, b);
+        gl_drawRect(fragShader, x-size/2-width, y-size-width, size+2*width, 2*width, r, g, b);
+    }
+}
+
+// 7-segment display
+// side can be -1 (aligned right) or 1 (aligned left)
+void gl_drawInteger(unsigned int fragShader, int n, float x, float y, float size, int r, int g, int b, float width, int side) {
+    int left = n;
+    float curx = x;
+    if(left < 0) {
+        left *= (-1);
+    }
+    if(side == 1) {
+        curx += ((ln_baseN(abs(n), 10)-1)*(size+4*width));
+    }
+    while(left > 0) {
+        gl_drawDigit(fragShader, left%10, curx, y, size, r, g, b, width);
+        curx -= (size+4*width);
+        left = left/10;
+    }
+    if(n == 0) {
+        gl_drawDigit(fragShader, 0, curx, y, size, r, g, b, width);
+        curx -= (size+4*width);
+    }
+    if(n < 0) {
+        gl_drawRect(fragShader, curx-size/2-width, y, size+2*width, 2*width, r, g, b);
+    }
+}
+
+void gl_initDrawRect(unsigned int shaderProgram) {
+    glUseProgram(shaderProgram);
+}

src/menus.h

@@ -1,5 +1,11 @@
 #ifndef MENUS_H
 #define MENUS_H
 
+void initMenus();
+
+void gl_drawRect(unsigned int fragShader, float x, float y, float w, float h, int r, int g, int b);
+void gl_initDrawRect(unsigned int shaderProgram);
+
+void gl_drawInteger(unsigned int fragShader, int n, float x, float y, float size, int r, int g, int b, float width, int side);
 
 #endif

src/move.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>

src/proj.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
-#include <ncurses.h>
 #include <unistd.h>
 #include <termios.h>
 #include <limits.h>
@@ -62,20 +61,6 @@ void appendProj(double x, double y, double z, double w, double h, double d, doub
     }
 }
 
-void copy_cube(cube_0* src, cube_0* dest) {
-    dest->red = src->red;
-    dest->green = src->green;
-    dest->blue = src->blue;
-    dest->hz_angle = src->hz_angle;
-    dest->vt_angle = src->vt_angle;
-    dest->x = src->x;
-    dest->y = src->y;
-    dest->z = src->z;
-    dest->w = src->w;
-    dest->h = src->h;
-    dest->d = src->d;
-}
-
 void removeProj(int k) {
     if(k >= 0 && k < bullets_id) {
         copy_cube(bullets[bullets_id-1].pos, bullets[k].pos);
@@ -113,6 +98,10 @@ void updateProj(float dtime) {
         if(*(bullets[k].ttl) <= 0.0 || is_colliding_with_map(bullets[k].pos) || is_colliding_with_tp(bullets[k].pos)) {
             removeProj(k);
             k -= 1;
+        } else if(distance_pt_cube_0_3d(camx, camy, camz, bullets[k].pos) <= 0.1) {
+            player_hp -= bullets[k].damage;
+            removeProj(k);
+            k -= 1;
         } else {
             bullets[k].vel->x += ((double)dtime)*bullets[k].acc->x;
             bullets[k].vel->y += ((double)dtime)*bullets[k].acc->y;

src/structure.h

@@ -32,14 +32,14 @@ typedef struct teleporter {
 
 typedef struct entity {
     cube_0* pos;
-    void (*updatePos)(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, cube_0* ret) ;    
         // act as velocity function
+    void (*updatePos)(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, cube_0* ret);
         
-    void (*onHit)(float dtime, int* hp, int* dmg, cube_0* ret) ;
         // triggers when object is hit
+    void (*onHit)(float dtime, int* hp, int* dmg, cube_0* ret);
 
+        // triggers when <hitpoints> goes negative (death)
     void (*onDeath)(float dtime);
-        // triggers when <hitpoints> goes negative
 
     int damage;
     int* hitpoints;
@@ -122,5 +122,8 @@ extern double min_dist ;
 // ---------------------------------------------------------------------------------------------------- //
 
 extern float vertices[108];
+extern float rectDefault[18];
+
+extern int triCount ;
 
 #endif