Область действия
Область действия (AoE) is:
- a property of attacks that determines in what area it can hit targets (hitbox).
- a property of targets that determines in what area it counts attacks as hitting it (hurtbox).
- a property of abilities that determines in what area it detects targets (Пример: Bennett Inspiration Field).
Система координат
Evilsim is using a 2D coordinate system that follows the Cartesian coordinate system. That means every point in space can be uniquely identified by a combination of its x and y coordinate values.
Evilsim uses meters (m) as its unit of length.
Some abyss floors have tiles. Например: Floor 7 and 8. These tiles have a size of 2.55m x 2.55m.
Направление
Evilsim represents the (viewing) direction of the player and shapes by using vectors. Формы are oriented according to the direction starting from their center.
Usually, the direction of a shape is based on the direction of the player. The player direction is always set to the direction of the closest enemy (primary target). In order to achieve this, it updates on the following events:
- player is moved
- enemy is moved
- primary target dies
Each (x, y) vector can be mapped to a certain angle.
Пример directions and their mappings:
| Направление | Angle | Описание |
|---|---|---|
| (0, 1) | 0° | "looking forward", по умолчанию direction |
| (1, 0) | 90° | "looking to the right" |
| (0, -1) | 180° | "looking backward" |
| (-1, 0) | 270° | "looking to the left" |
Пример for a 3m x 5m rectangle with the center at (0, 0) and a direction of (1, 1) (45°):
Before rotation by direction:
After rotation by direction:
For some manual rotation calculations for shapes that have their center at (0, 0), you can use this website.
Хитбокс, hurtbox and detection area
The AoE of an attack (hitbox) and AoE of a target (hurtbox) is represented by their shape in combination with a direction.
The player has a Круг hurtbox with 0.3m radius.
Цельs have a Круг hurtbox with 1m radius by по умолчанию. See the config page in the reference section for information on how to customize the radius.
In the case of a detection area, only the center point of the hurtbox matters and it has to be in that detection area.
Форма
Here is a list of shapes that is used in Evilsim:
| Форма | Описание | Attributes |
|---|---|---|
| SingleЦель | This means the attack is hitting a single enemy directly. | Enemy Key |
| Круг | A circle with a certain radius. If the circle has a fan angle, then it becomes a circular segment. | Центр, Смещение X, Смещение Y, Радиус, Угол сектора |
| Прямоугольник | A 2D box (rectangle) with a certain width and length. | Центр, Смещение X, Смещение Y, Прямоугольник X (width), Прямоугольник Y (length) |
Evilsim is implemented entirely in 2D, but Genshin is a 3D game. This means we have the following mappings between 3D and 2D shapes:
| 3D shape | 2D representation |
|---|---|
| Sphere | Круг with same radius. |
| Cylinder | Круг with same radius. |
| Прямоугольник | Rectangle with same width and length. |
Центр
Every shape except for SingleЦель has a point that defines its center.
Usually, it is the position of the player or an enemy.
While circles and circular segments in Evilsim have the usual center definition, rectangles have their center not in their geometric center, but in the middle of the lower side defined by the Прямоугольник X parameter.
Offset
The center point of every shape can be shifted by a certain amount in the x direction (Смещение X) and/or y direction (Смещение Y).
The values for Смещение X and Смещение Y assume a direction of (0, 1) (0°), so they get rotated to match the shape's direction.
Most attacks do not have Смещение X, but they usually have Смещение Y.
Fan angle
The fan angle of a circle describes a circular segment. It is a value between 0° (single line) and 360° (full circle). As the value increases, the Circular segment expands 1:1 counterclockwise and clockwise beginning from the circle's direction.
Столкновение
Evilsim performs collision detection between the attack's hitbox and target's hurtbox. If Evilsim detected a collision, then the attack hits the target. For more details, please refer to the исходный код Evilsim.