Add stb_sprintf

main.cpp

@@ -30,6 +30,11 @@
 // STL
 #include <iostream>
 
+// STB
+#define STB_SPRINTF_IMPLEMENTATION
+#include "stb_sprintf.h"
+#undef STB_SPRINTF_IMPLEMENTATION
+
 // POSIX
 #include <time.h>
 
@@ -231,6 +236,10 @@ uint32_t make_gl_program(const char *pathname_vertex, const char *pathname_fragm
 
 void render_text(const char *text, float x, float y, float scale, glm::vec3 color)
 {
+    // TODO: Use triangle strip (4 vertices vs 6)
+    // TODO: Group draw calls together instead of doing 1 draw call/character. Use an atlas with GL_TEXTURE_ARRAY
+    // TODO: Do not make draw calls for invisible characters!
+  
     // activate corresponding render state	
     glUseProgram(text_program);
     glUniform3f(glGetUniformLocation(text_program, "text_color"), color.x, color.y, color.z);
@@ -629,7 +638,7 @@ int main([[maybe_unused]]int argc, [[maybe_unused]]char **argv)
         static char debug_text_buf[256];
         {
             TIME_BLOCK(text_render);
-            snprintf(debug_text_buf, 256, "Cursor position %.0f %.0f screen %.2f %.2f world", cursor_x, cursor_y, cursor_world.x, cursor_world.y);
+            stbsp_snprintf(debug_text_buf, 256, "Cursor position %.0f %.0f screen %.2f %.2f world", cursor_x, cursor_y, cursor_world.x, cursor_world.y);
             render_text(debug_text_buf, 25, 25, .5f, glm::vec3(1.0f, 1.0f, 1.0f));
         
             for (int i = 0; i < grid.rows * grid.columns; ++i)
@@ -642,13 +651,13 @@ int main([[maybe_unused]]int argc, [[maybe_unused]]char **argv)
                 v.y += 1;
                 v.y *= window_height/2.0f;
                 char number_string[11];
-                snprintf(number_string, 11, "%d", i);
+                stbsp_snprintf(number_string, 11, "%d", i);
                 render_text(number_string, v.x, v.y, .2f + (0.3f / the_camera.size.x), glm::vec3(0.0f, 0.0f, 0.0f));
             }
             if (hovered_hex != -1)
             {
                 char buf[30];
-                snprintf(buf, 30, "Cursor INSIDE hex %d", hovered_hex);
+                stbsp_snprintf(buf, 30, "Cursor INSIDE hex %d", hovered_hex);
                 render_text(buf, 25.0f, window_height - 25.0f, .5f, glm::vec3(1.0f, 1.0f, 1.0f));
             }
         }