Fonts working

- No scaling
- No rotation

1 files changed, 37 insertions, 1 deletions

diff --git a/src/font.c b/src/font.c
index 85f7498..17c62ad 100644
--- a/src/font.c
+++ b/src/font.c
@@ -168,6 +168,7 @@ bool load_sprite_font(SDL_Renderer* renderer, const char* filename, sprite_font*
 
     else if (strncmp(line, "char", 4) == 0) {
       font_char new_font_char;
+      new_font_char.active = true;
 
       int val;
 
@@ -289,6 +290,7 @@ bool load_sprite_font(SDL_Renderer* renderer, const char* filename, sprite_font*
 
   font_char* characters_arranged =
     malloc((largest_char-smallest_char+1) * sizeof(font_char));
+  memset(characters_arranged, 0, (largest_char-smallest_char+1) * sizeof(font_char));
 
   if (characters_arranged == NULL) {
     SDL_Log("Failed to allocate space while loading font %s, error %s",
@@ -312,7 +314,8 @@ bool load_sprite_font(SDL_Renderer* renderer, const char* filename, sprite_font*
   *font = (sprite_font) {
     .smallest_character = smallest_char,
     .largest_character = largest_char,
-    .characters = characters_arranged
+    .characters = characters_arranged,
+    .spritesheet = font_spritesheet
   };
 
   strncpy(font->name, font_name, FONT_NAME_SIZE-1);
@@ -322,3 +325,36 @@ bool load_sprite_font(SDL_Renderer* renderer, const char* filename, sprite_font*
   fclose(f);
   return true;
 }
+
+void draw_text_with_spritefont
+(
+ SDL_Renderer* renderer,
+ sprite_font* font,
+ const unsigned char* text,
+ float x_position, float y_position
+) {
+  while (*text) {
+    const font_char* fc = &font->characters[*text-font->smallest_character];
+    if (!fc->active) {
+      text++;
+      continue;
+    }
+
+    SDL_RenderTexture(renderer,
+                      font->spritesheet,
+                      &(SDL_FRect){
+                        .x = fc->x,
+                        .y = fc->y,
+                        .w = fc->width,
+                        .h = fc->height
+                      },
+                      &(SDL_FRect){
+                        .x = x_position + fc->x_offset,
+                        .y = y_position + fc->y_offset,
+                        .w = fc->width,
+                        .h = fc->height
+                      });
+    x_position += fc->x_advance;
+    text++;
+  }
+}