lib+common: Fixups for big refactor in 2bd1b4b

Remove debug print & fix a warning.

Author: vkoskiv

src/common/loaders/formats/wavefront/wavefront.c

@@ -97,13 +97,11 @@ float get_poly_area(struct cr_face *p, struct vector *vertices) {
 	return vec_length(cross) / 2.0f;
 }
 
-#include <stdio.h>
 struct mesh_parse_result parse_wavefront(const char *file_path) {
 	file_data input = file_load(file_path);
 	if (!input)
 		return (struct mesh_parse_result){ 0 };
 	logr(debug, "Loading OBJ %s\n", file_path);
-	fprintf(stderr, "\n\nlen is %zu\n\n", v_arr_len(input));
 	textBuffer *file = newTextBuffer((char *)input, v_arr_len(input));
 	char *assetPath = get_file_path(file_path);
 

src/lib/datatypes/tile.c

@@ -158,9 +158,12 @@ static unsigned int rand_interval(unsigned int min, unsigned int max, pcg32_rand
 
 static void reorder_random(struct render_tile **tiles) {
 	pcg32_random_t rng;
+	size_t len = v_arr_len(*tiles);
+	if (!len)
+		return;
 	pcg32_srandom_r(&rng, 3141592, 0);
-	for (unsigned i = 0; i < v_arr_len(*tiles); ++i) {
-		unsigned random = rand_interval(0, v_arr_len(tiles) - 1, &rng);
+	for (size_t i = 0; i < len; ++i) {
+		unsigned random = rand_interval(0, len - 1, &rng);
 
 		struct render_tile temp = (*tiles)[i];
 		(*tiles)[i] = (*tiles)[random];