你如何将一个游戏 object 与另一个游戏 object 推送一个设定的距离，例如 1 个瓷砖

Question

I'm trying to make a 2d game and have a grid in Unity in 2D mode, TOP DOWN fashion and i have a player and a box. I need the player to move one tile per key press and when it collides with the box sprite, i need to "push" the sprite one tile in the pushing direction for all 4 sides of the box.

The game mechanics are similar to the game "baba is you" if that helps.

So i have tried to just use rigid body and box colliders for the box and player, and adjusted the mass and drag of the box, but it just pushes the box a bit and not a defined distance. However i just want to detect the player from a side of the box and then push it by one unit/tile each time as the player moves one tile.

I'm thinking that i need to attach a script to the box object to check if the player has hit the box and then just move the box in x or y direction?

Answer 1

You are looking for linear interpolation (LERP for short). You can lerp an object using the rigidbody or transform. Lerping allows you to interpolate the position over time. Here's an example:

transform.position = Vector3.Lerp(start, end, t);

In the above code, when t = 0, the position will be at the start. When t=0.5, it will be exactly halfway between the start and end. When t = 1, it will be at the end. If you use this functionality with Time.deltaTime you can smoothly move your object between 2 points over time, making sure your start and end destinations are pinpoint specific.