Use pointers instead of bitshift tricks.

include/conf.h

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright (C) 2021 KikooDX */
+
 #pragma once
 
 #if defined(RAYLIB)

include/renderer/init.h

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright (C) 2021 KikooDX */
+
 #pragma once
 
 /* Initialize renderer. */

src/level.c

@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-3.0-or-later */
 /* Copyright (C) 2021 KikooDX */
 
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -126,16 +127,17 @@ static int read_byte(FILE *file) {
 
 /* Read multiple bytes and "merge" them into one integer. */
 static int read_byte_group(FILE *file, int size) {
-	int byte = 0;
-	int merged = 0;
+	int group = 0;
+	uint8_t *byte_ptr = (uint8_t*)&group;
 	int i = 0;
-	int shift = size * 8;
+	byte_ptr += size;
 	for (i = 0; i < size; i += 1) {
-		shift -= 8;
-		byte = read_byte(file);
-		merged |= byte << shift;
+		byte_ptr -= 1;
+		*byte_ptr = read_byte(file);
+		printf("%d ", *byte_ptr);
 	}
-	return merged;
+	printf("%d\n", group);
+	return group;
 }
 
 /* Write a single byte safely (handle EOF). */
@@ -149,14 +151,13 @@ static void write_byte(FILE *file, unsigned char byte) {
 
 /* Write an integer as multiple bytes. */
 static void write_byte_group(FILE *file, int value, int size) {
-	int byte = 0;
-	int shift = size * 8;
+	uint8_t *value_ptr = (uint8_t*)&value;
+	value_ptr += size;
 	int i = 0;
-	const int mask = (1 << 8) - 1;
 	for (i = 0; i < size; i += 1) {
-		shift -= 8;
-		byte = value >> shift;
-		byte &= mask;
-		write_byte(file, byte);
+		value_ptr -= 1;
+    		printf("%d ", *value_ptr);
+		write_byte(file, *value_ptr);
 	}
+	printf("\n");
 }

src/ncurses/init.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright (C) 2021 KikooDX */
+
 #include <locale.h>
 #include <ncurses.h>
 #include <unistd.h>

src/raylib/init.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright (C) 2021 KikooDX */
+
 #include <raylib.h>
 
 #include "conf.h"