From 48c64c93261a9979c66737011b6aa3bcd2e9d7d8 Mon Sep 17 00:00:00 2001
From: themancalledjakob <jakob@jrkb.land>
Date: Wed, 12 Apr 2023 15:48:33 +0200
Subject: [PATCH] naive vFlip

---
 src/gpufont/font.hpp | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/gpufont/font.hpp b/src/gpufont/font.hpp
index c170e0a..538651d 100644
--- a/src/gpufont/font.hpp
+++ b/src/gpufont/font.hpp
@@ -700,7 +700,7 @@ class Font {
 
         }
 
-        void draw(float x, float y, float z, const std::string & text){
+        void draw(float x, float y, float z, const std::string & text, bool vFlip = false){
             float originalX = x;
 
             glBindVertexArray(vao);
@@ -745,16 +745,27 @@ class Font {
                     float u1 = (float)(glyph.bearingX + glyph.width + d) / emSize;
                     float v1 = (float)(glyph.bearingY + d) / emSize;
 
+
                     float x0 = x + u0 * worldSize;
                     float y0 = y + v0 * worldSize;
                     float x1 = x + u1 * worldSize;
                     float y1 = y + v1 * worldSize;
 
+                    if(vFlip){
+                        float _v = v0;
+                        v0 = v1;
+                        v1 = _v;
+
+                        y0 = y - v0 * worldSize;
+                        y1 = y - v1 * worldSize;
+                    }
+
                     int32_t base = static_cast <int32_t>(vertices.size());
                     vertices.push_back(BufferVertex{x0, y0, u0, v0, glyph.bufferIndex});
                     vertices.push_back(BufferVertex{x1, y0, u1, v0, glyph.bufferIndex});
                     vertices.push_back(BufferVertex{x1, y1, u1, v1, glyph.bufferIndex});
                     vertices.push_back(BufferVertex{x0, y1, u0, v1, glyph.bufferIndex});
+
                     indices.insert(indices.end(), {base, base + 1, base + 2, base + 2, base + 3, base});
                 }