basic game logic with simple translation animation

text.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include "core.h"
+#include "ui.h"
+#include "zephr_math.h"
+
+typedef struct Character {
+  Size size;
+  Size bearing;
+  unsigned int advance;
+  Vec2f tex_coords[4]; // the 4 corners of the character quad
+} Character;
+
+typedef struct ZephrFont {
+  Character characters[128];
+  unsigned int atlas_texture_id;
+} ZephrFont;
+
+typedef struct TextInstance {
+  Vec4f position;
+  int tex_coords_index;
+  Colorf color;
+  float model[4][4];
+} GlyphInstance;
+
+typedef struct GlyphInstanceList {
+  GlyphInstance *data;
+  int size;
+  int capacity;
+} GlyphInstanceList;
+
+void new_glyph_instance_list(GlyphInstanceList *list, u32 capacity);
+int init_fonts(const char *font_path);
+Sizef calculate_text_size(const char *text, int font_size);
+void draw_text(const char* text, int font_size, UIConstraints constraints, const Color color, Alignment alignment);
+void add_text_instance(GlyphInstanceList *batch, const char* text, int font_size, UIConstraints constraints, const Color color, Alignment alignment);
+void draw_text_batch(GlyphInstanceList *batch);