prog

2026-06-18 20:25:54 -05:00
parent 730a5b2b10
commit 57b2cdb9d1
111 changed files with 865 additions and 3328 deletions
@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "tileset.h"
+#include "assert/assert.h"
+#include "util/string.h"
+
+void tilesetTileGetUV(
+  const tileset_t *tileset,
+  const uint16_t tileIndex,
+  vec4 outUV
+) {
+  const uint16_t column = tileIndex % tileset->columns;
+  const uint16_t row = tileIndex / tileset->columns;
+  tilesetPositionGetUV(tileset, column, row, outUV);
+}
+
+void tilesetPositionGetUV(
+  const tileset_t *tileset,
+  const uint16_t column,
+  const uint16_t row,
+  vec4 outUV
+) {
+  assertNotNull(tileset, "Tileset cannot be NULL");
+  assertTrue(column < tileset->columns, "Column index out of bounds");
+  assertTrue(row < tileset->rows, "Row index out of bounds");
+
+  outUV[0] = ((float_t)column) * tileset->uv[0];
+  outUV[1] = ((float_t)row) * tileset->uv[1];
+  outUV[2] = outUV[0] + tileset->uv[0];
+  outUV[3] = outUV[1] + tileset->uv[1];
+}