add networking, 3d improvements, reorganize src structure

src/core/pxl8_io.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <stdio.h>
+#include <sys/stat.h>
+
+#include "pxl8_bytes.h"
+#include "pxl8_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+pxl8_result pxl8_io_create_directory(const char* path);
+bool pxl8_io_file_exists(const char* path);
+void pxl8_io_free_binary_data(u8* data);
+void pxl8_io_free_file_content(char* content);
+f64 pxl8_io_get_file_modified_time(const char* path);
+pxl8_result pxl8_io_read_binary_file(const char* path, u8** data, size_t* size);
+pxl8_result pxl8_io_read_file(const char* path, char** content, size_t* size);
+pxl8_result pxl8_io_write_binary_file(const char* path, const u8* data, size_t size);
+pxl8_result pxl8_io_write_file(const char* path, const char* content, size_t size);
+
+bool pxl8_key_down(const pxl8_input_state* input, const char* key_name);
+bool pxl8_key_pressed(const pxl8_input_state* input, const char* key_name);
+bool pxl8_key_released(const pxl8_input_state* input, const char* key_name);
+
+i32 pxl8_mouse_dx(const pxl8_input_state* input);
+i32 pxl8_mouse_dy(const pxl8_input_state* input);
+bool pxl8_mouse_pressed(const pxl8_input_state* input, i32 button);
+bool pxl8_mouse_released(const pxl8_input_state* input, i32 button);
+i32 pxl8_mouse_wheel_x(const pxl8_input_state* input);
+i32 pxl8_mouse_wheel_y(const pxl8_input_state* input);
+i32 pxl8_mouse_x(const pxl8_input_state* input);
+i32 pxl8_mouse_y(const pxl8_input_state* input);
+
+#ifdef __cplusplus
+}
+#endif