Moved a tonne of code around

src/dawn/display/bitmapfont.h

@@ -0,0 +1,71 @@
+/**
+ * Copyright (c) 2021 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "../libs.h"
+#include "spritebatch.h"
+#include "tileset.h"
+#include "../util/math.h"
+
+/** Which is the first character within the font tilemap */
+#define BITMAP_FONT_CHAR_START 33
+
+/** Center a font along the X axis */
+#define BITMAP_FONT_CENTER_X 9876543
+
+/** Center a font along the Y axis */
+#define BITMAP_FONT_CENTER_Y -BITMAP_FONT_CENTER_X
+
+/** Align right edge of font to origin */
+#define BITMAP_FONT_RIGHT_X (BITMAP_FONT_CENTER_X-1)
+
+typedef struct {
+  float width, height;
+  int32_t lines;
+} bitmapfontmeasure_t;
+
+/**
+ * Get the division for a given character.
+ * 
+ * @param tileset Tileset to get the division from.
+ * @param character Character to get the division for.
+ * @return The division from the tileset for the character.
+ */
+tilesetdiv_t * bitmapFontGetCharacterDivision(tileset_t *tileset,
+  char character
+);
+
+/**
+ * Measures a string's fully rendered size.
+ * 
+ * @param string The string to measure
+ * @param charWidth The width of each character.
+ * @param charHeight The height of each character.
+ * @return The measured string.
+ */
+bitmapfontmeasure_t bitmapFontMeasure(char *string,
+  float charWidth, float charHeight
+);
+
+/**
+ * Renders a set of font characters to the sprite. Coordinates are anchored to
+ * the top left (0,0) origin.
+ * 
+ * @param batch Sprite Batch to render to.
+ * @param tileset Tileset for the font.
+ * @param string String to render.
+ * @param x Position in X space.
+ * @param y Position in Y space.
+ * @param z Position in Z space.
+ * @param charWidth Width of each character. Set to -1 to use the height ratio.
+ * @param charHeight Height of each character. Set to -1 to be the width ratio.
+ * @returns The string measurement.
+ */
+bitmapfontmeasure_t bitmapFontSpriteBatchBuffer(
+  spritebatch_t *batch, tileset_t *tileset,
+  char *string, float x, float y, float z, float charWidth, float charHeight
+);