basic inventory (doesn't save)

control.c

@@ -1,8 +1,8 @@
 #include "cubes.h"
 #include "gen.h"
+#include "inv.h"
 #include "linmath.h"
 #include <GLFW/glfw3.h>
-#include <stdio.h>
 
 int is_space;
 
@@ -152,7 +152,7 @@ struct v3f control_rtrace(double cx, double cy, vec3 pos, int mode) {
   return out_pos;
 }
 
-void control_lclick(double cx, double cy, vec3 pos) {
+void control_lclick(double cx, double cy, vec3 pos, struct item *inv) {
   struct v3f highlighted = control_rtrace(cx, cy, pos, 1);
   struct chunk placeChunk;
   int cube = gen_cube(highlighted.pos[0], highlighted.pos[1],
@@ -163,16 +163,39 @@ void control_lclick(double cx, double cy, vec3 pos) {
     return;
   gen_cube(highlighted.pos[0], highlighted.pos[1], highlighted.pos[2],
            placeChunk, 0, 0);
+
+  for (int i = 0; i < 10; i++) {
+    if (inv[i].id == 0) {
+      inv[i].id = cube;
+      inv[i].count = 0;
+    }
+    if (inv[i].id == cube) {
+      inv[i].count++;
+      break;
+    }
+  }
 }
 
-void control_rclick(double cx, double cy, vec3 pos) {
+void control_rclick(double cx, double cy, vec3 pos, struct item *inv, int slot) {
   struct v3f highlighted = control_rtrace(cx, cy, pos, 0);
   struct chunk placeChunk;
   int cube = gen_cube(highlighted.pos[0], highlighted.pos[1],
                       highlighted.pos[2], placeChunk, 0, -1);
-  if (cube != 0 ||
+  if (cube != 0 || (fabs(highlighted.pos[0] - pos[0]) < 1 &&
-      (fabs(highlighted.pos[0] - pos[0]) < 1 && fabs(highlighted.pos[1] - pos[1] + 0.5) < 1.5 && fabs(highlighted.pos[2] - pos[2]) < 1))
+                    fabs(highlighted.pos[1] - pos[1] + 0.5) < 1.5 &&
+                    fabs(highlighted.pos[2] - pos[2]) < 1))
     return;
   gen_cube(highlighted.pos[0], highlighted.pos[1], highlighted.pos[2],
-           placeChunk, 0, 1);
+           placeChunk, 0, inv[slot].id);
+
+  for (int i = 0; i < 10; i++) {
+    if (inv[i].id == inv[slot].id) {
+      inv[i].count--;
+      if (inv[i].count == 0) {
+        inv[i].id = 0;
+        inv[i].count = 0;
+      }
+      break;
+    }
+  }
 }

control.h

@@ -2,9 +2,11 @@
 #define V_CONTROL_H
 #include "cubes.h"
 #include "linmath.h"
+#include "inv.h"
+
 #include <GLFW/glfw3.h>
 struct v3f control_handler(double cx, double cy, vec3 pos, vec3 dir_temp,
                            GLFWwindow *window, struct chunk chunk);
-void control_lclick(double cx, double cy, vec3 pos);
+void control_lclick(double cx, double cy, vec3 pos, struct item *inv);
-void control_rclick(double cx, double cy, vec3 pos);
+void control_rclick(double cx, double cy, vec3 pos, struct item *inv, int slot);
 #endif

cubes.h

@@ -7,7 +7,7 @@
 #define CHUNK_RADIUS_V 4 // 4
 
 #define TEXT_GAP_H 1 / 6.0
-#define TEXT_GAP_V 1 / 7.0
+#define TEXT_GAP_V 1 / 9.0
 
 #define CHUNK_DIAMETER_H (CHUNK_RADIUS_H * 2 + 1)
 #define CHUNK_DIAMETER_V (CHUNK_RADIUS_V * 2 + 1)
@@ -15,7 +15,7 @@
 #define BLOCK_ALL CHUNK_LENGTH *CHUNK_LENGTH *CHUNK_LENGTH
 #define CBLOCK_ALL BLOCK_ALL *CHUNK_ALL
 #define CBUF_ALL 2
-#define UI_ALL 1024
+#define UI_ALL 20480
 
 #define CTRI_ALL CBLOCK_ALL * 18 * sizeof(struct v3f)
 

inv.h

@@ -0,0 +1,8 @@
+
+#ifndef V_INV_H
+#define V_INV_H
+struct item {
+    int id;
+    int count;
+};
+#endif

main.c

@@ -13,6 +13,7 @@
 #include "cubes.h"
 #include "gen.h"
 #include "gl.h"
+#include "inv.h"
 #include "linmath.h"
 #include "stb_image.h"
 
@@ -52,6 +53,12 @@ static const char *fragment_shader_text =
     "}\n";
 
 int isCursor = 0;
+double cx = 0;
+double cy = 0;
+int fr = 0;
+vec3 pos;
+struct item *inv;
+int slot;
 
 static void key_callback(GLFWwindow *window, int key, int scancode, int action,
                          int mods) {
@@ -63,22 +70,23 @@ static void key_callback(GLFWwindow *window, int key, int scancode, int action,
     glfwSetInputMode(window, GLFW_CURSOR,
                      isCursor ? GLFW_CURSOR_NORMAL : GLFW_CURSOR_DISABLED);
   }
+  if (key == GLFW_KEY_Q && action == GLFW_PRESS) {
+    slot = (slot + 9) % 10;
+  }
+  if (key == GLFW_KEY_E && action == GLFW_PRESS) {
+    slot = (slot + 1) % 10;
+  }
 }
-
-double cx = 0;
-double cy = 0;
-int fr = 0;
-vec3 pos;
 
 void mouse_button_callback(GLFWwindow *window, int button, int action,
                            int mods) {
   if (button == GLFW_MOUSE_BUTTON_RIGHT && action == GLFW_PRESS) {
     fr = 1;
-    control_rclick(cx, cy, pos);
+    control_rclick(cx, cy, pos, inv, slot);
   }
   if (button == GLFW_MOUSE_BUTTON_LEFT && action == GLFW_PRESS) {
     fr = 1;
-    control_lclick(cx, cy, pos);
+    control_lclick(cx, cy, pos, inv);
   }
 }
 
@@ -128,6 +136,8 @@ void *render_chunks(void *args) {
 #define WinMain main
 
 int main(void) {
+  inv = calloc(10, sizeof(struct item));
+
   if (!glfwInit())
     exit(EXIT_FAILURE);
 
@@ -359,12 +369,27 @@ int main(void) {
     cubes_rect(textO, &iz, -0.5, 0.5, -0.5, 0.5, 1, 0, 6);
 
     for (int i = 0; i < 10; i++) {
+      for (int x = 0; x < 3; x++) {
+        int dig = (int)(inv[i].count / (pow(10, x))) % 10;
+
+        dig = (dig + 9) % 10;
+
+        iz += 6;
+        cubes_rect(cubeO, &iz, ((i - 4.5) * 2.5) + 0.5 - ((x + 1) * 0.5),
+                   ((i - 4.5) * 2.5) + 1 - ((x + 1) * 0.5), -10, -10.5, 0, 0,
+                   0);
+        cubes_rect(textO, &iz, 0, 0, 0, 0, 1, (dig + 3) % 6, (dig + 3) / 6 + 6);
+      }
       iz += 6;
       cubes_rect(cubeO, &iz, ((i - 4.5) * 2.5) - 1, ((i - 4.5) * 2.5) + 1, -11,
-                 -9, 0, 1, 6);
+                 -9, 0, 0, 0);
-      cubes_rect(textO, &iz, ((i - 4.5) * 2.5) - 1, ((i - 4.5) * 2.5) + 1, -11,
+      cubes_rect(textO, &iz, 0, 0, 0, 0, 1, (slot == i) ? 1 : 2, 6);
-                 -9, 1, 1, 6);
+      iz += 6;
+      cubes_rect(cubeO, &iz, ((i - 4.5) * 2.5) - 0.5, ((i - 4.5) * 2.5) + 0.5,
+                 -10.5, -9.5, 0, 0, 0);
+      cubes_rect(textO, &iz, 0, 0, 0, 0, 1, inv[i].id - 1, 0);
     }
+    iz += 6;
 
     mat4x4_identity(v);
     mat4x4_ortho(p, -ratio * 15, ratio * 15, -1.f * 15, 1.f * 15, 1.0f, -1.0f);
@@ -374,15 +399,15 @@ int main(void) {
     glUniformMatrix4fv(mvp_location, 1, GL_FALSE, (const GLfloat *)&mvp);
 
     glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer[1]);
-    glBufferSubData(GL_ARRAY_BUFFER, CTRI_ALL,
+    glBufferSubData(GL_ARRAY_BUFFER, CTRI_ALL, (iz - iz2) * sizeof(struct v3f),
-                    (long)6 * 11 * sizeof(struct v3f), &textO[iz2]);
+                    &textO[iz2]);
     glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer[0]);
-    glBufferSubData(GL_ARRAY_BUFFER, CTRI_ALL,
+    glBufferSubData(GL_ARRAY_BUFFER, CTRI_ALL, (iz - iz2) * sizeof(struct v3f),
-                    (long)6 * 11 * sizeof(struct v3f), &cubeO[iz2]);
+                    &cubeO[iz2]);
 
     glBindVertexArray(vertex_array);
 
-    glDrawArrays(GL_TRIANGLES, CBLOCK_ALL * 18, 6 * 11);
+    glDrawArrays(GL_TRIANGLES, CBLOCK_ALL * 18, (iz - iz2));
   }
 
   if (fp) {