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External RPM-based ESP hack with user-interface targeting Sea of Thieves.

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# sotesp

### Compatible with [2.0.16](https://www.seaofthieves.com/release-notes/2.0.16) "Haunted Shores" (16th June, 2020)

This is a hack for Sea of Thieves that enables the player to see treasures, enemies, ships, other players and whatever else through walls and from great distances. A user interface is included that is used to manage render properties of in-game actors as well as to provide an easy-to-observe list of all in-game actors.

### Screenshots

Some animated GIFs can be viewed [here](https://imgur.com/a/9C1Ayn3).

### How's this work?

Basically, this software runs alongside the game and utilizes ```ReadProcessMemory``` from the Windows API to grab and read memory from the target process. It then walks the underlying Unreal Engine 4 architecture within the game to locate game objects and then uses a world to screen routine to highlight objects of interest within the players view.

***This is against the games TOS and you could be banned for using this*** but as far as I've experienced this is undetected. At the time of writing this, Sea of Thieves doesn't have any official anti-cheat software. Additionally, just due to the fact that is functions via a transparent overlay window, the hack is not be visible when streaming the game. ***This hack is completely external and does not write to, or inject code into the target process.*** It strictly only reads memory.

Based off of Unreal Engine 4.10.1 source code; commited memory pages in the "SoTGame.exe" module of the target process are scanned for static pointers to two UE4 TArray objects: ***GNames*** is a structure which is used to map ID codes of in-game objects to human-readable names like "BP_SmallShipTemplate_C" or the like. ***UWorld*** manages information related to the current level, lists of local players, etc. But most importantly there exists a pointer to a ***ULevel*** object know as "PersistentLevel" that references a list of all ***AActor***'s in the game world. Within each ***AActor*** is an ID that can be used in conjunction with ***GNames*** to identify what exactly each "actor" is.
From here we use the structure of ***AActor*** to divulge even more information:

```c++
struct actor {
	// These don't represent the actual structure.
	uintptr_t component_address;
	glm::fvec3 component_bounds_origin, component_bounds_extent;
	float component_bounds_radius;
	glm::vec3 linear_velocity, angular_velocity;
	glm::vec3 location, rotation;
	glm::vec3 component_relative_location, component_relative_rotation;
	glm::vec3 component_velocity;
	static std::optional<actor> from(const uintptr_t &process_handle, const uintptr_t &actor_address);
}
```

All ***AActor***'s have a reference to a "RootSceneComponent" that contains additional information related to actually rendering the ***AActor***. That's what the "component_*" variables are referencing and is of the type ***USceneComponent*** in the source. Process this information and then grab a reference to the "LocalPlayer" from ***UWorld***, which eventually leads you to the ***AActor*** of the local player and it's camera manager. Generate a 3x4 rotation matrix that represents the camera:

```c++
void update_local_player_camera_rotation_matrix() {
	auto pitch = glm::radians(local_player_camera_rotation.x);
	auto yaw = glm::radians(local_player_camera_rotation.y);
	auto roll = glm::radians(local_player_camera_rotation.z);
	auto SP = sinf(pitch), CP = cosf(pitch);
	auto SY = sinf(yaw), CY = cosf(yaw);
	auto SR = sinf(roll), CR = cosf(roll);
	local_player_camera_rotation_matrix[0][0] = CP * CY;
	local_player_camera_rotation_matrix[0][1] = CP * SY;
	local_player_camera_rotation_matrix[0][2] = SP;
	local_player_camera_rotation_matrix[0][3] = 0.f;
	local_player_camera_rotation_matrix[1][0] = SR * SP * CY - CR * SY;
	local_player_camera_rotation_matrix[1][1] = SR * SP * SY + CR * CY;
	local_player_camera_rotation_matrix[1][2] = -SR * CP;
	local_player_camera_rotation_matrix[1][3] = 0.f;
	local_player_camera_rotation_matrix[2][0] = -(CR * SP * CY + SR * SY);
	local_player_camera_rotation_matrix[2][1] = CY * SR - CR * SP * SY;
	local_player_camera_rotation_matrix[2][2] = CR * CP;
	local_player_camera_rotation_matrix[2][3] = 0.f;
}
```
Then, project needed information onto the viewport for consumption:

```c++
/* Converts 3D world coordinates to 2D screen coordinates.
The local_player_camera_rotation_matrix is updated once per frame.*/
glm::vec2 project(const glm::vec3 &location) {
	glm::vec3 axis[] = {
		{ local_player_camera_rotation_matrix[0][0], local_player_camera_rotation_matrix[0][1], local_player_camera_rotation_matrix[0][2] },
		{ local_player_camera_rotation_matrix[1][0], local_player_camera_rotation_matrix[1][1], local_player_camera_rotation_matrix[1][2] },
		{ local_player_camera_rotation_matrix[2][0], local_player_camera_rotation_matrix[2][1], local_player_camera_rotation_matrix[2][2] }
	};
	glm::vec3 location_delta = location - local_player_camera_location;
	glm::vec3 screen_point = glm::vec3(glm::dot(location_delta, axis[1]), glm::dot(location_delta, axis[2]), glm::dot(location_delta, axis[0]));
	if (screen_point.z < 1.f) screen_point.z = 1.f;
	auto aspect_based_fov = (viewport.x / viewport.y) / (16.0f / 9.0f) * tanf(local_player_camera_fov * M_PI / 360.0f);
	return {
		(viewport.x * .5f) + screen_point.x * (viewport.x * .5f) / aspect_based_fov / screen_point.z,
		(viewport.y * .5f) - screen_point.y * (viewport.x * .5f) / aspect_based_fov / screen_point.z
	};
}
```

All this information is obtained by jumping through a list of hand-tuned memory location offsets:

```c++
const uintptr_t world_owning_game_instance_offset = 0x1c0;
const uintptr_t world_persistent_level_offset = 0x30;
const uintptr_t persistent_level_actors_offset = 0xa0;
const uintptr_t owning_game_instance_local_player_offset = 0x38;
const uintptr_t actor_id_offset = 0x18;
const uintptr_t actor_linear_velocity_offset = 0xa4;
const uintptr_t actor_angular_velocity_offset = 0xb0;
const uintptr_t actor_location_offset = 0xbc;
const uintptr_t actor_rotation_offset = 0xc8;
const uintptr_t actor_root_scene_component_offset = 0x170;
const uintptr_t local_player_player_controller_offset = 0x30;
const uintptr_t player_controller_actor_offset = 0x418;
const uintptr_t player_controller_player_state_offset = 0x430;
const uintptr_t player_controller_camera_manager_offset = 0x4a0;
const uintptr_t player_state_player_name_offset = 0x418;
const uintptr_t camera_manager_x_offset = 0x490;
const uintptr_t camera_manager_pitch_offset = 0x49c;
const uintptr_t camera_manager_fov_offset = 0x4b8;
const uintptr_t scene_component_bounds_origin_offset = 0x100;
const uintptr_t scene_component_bounds_extent_offset = 0x110;
const uintptr_t scene_component_bounds_radius_offset = 0x10c;
const uintptr_t scene_component_relative_location_offset = 0x128;
const uintptr_t scene_component_relative_rotation_offset = 0x134;
const uintptr_t scene_component_velocity_offset = 0x22c;
```

### Building

No formal build system or anything. The PS files just execute what's expected to be MSYS2/GCC to compile/link.

### Dependencies

- https://fmt.dev/ **Text formatting.**
- https://curl.haxx.se/ Was for downloading files but unused currently.
- http://glew.sourceforge.net/ **OpenGL extension loading.**
- https://www.glfw.org/ **OpenGL context and user input.**
- https://github.com/ocornut/imgui **The docking branch. OpenGL\GLFW3 implementation.**

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