proper headers

src/args.h

@@ -0,0 +1,17 @@
+#ifndef ARGS_H
+#define ARGS_H
+
+struct Parameters {
+  unsigned long width;
+  unsigned long height;
+  char *file_path;
+  unsigned char start[3];
+  unsigned char slope[2];
+  unsigned char var[3];
+};
+
+typedef struct Parameters parameters;
+
+parameters parse_args(int argc, char **argv);
+
+#endif