Question

我之前曾问过这个问题，但从未得到回应，我的目标是创建一个统一的2D摄像头控制器，该控制器始终沿玩家X轴填充，而在y上它将忽略玩家Y，直到他达到特定高度，然后它将跟随玩家上升，这是我的代码：

public float baseCameraHeight = 5.0f; // default y-position of camera
public float heightThreshold = 20.0f; // minimum height for camera to follow vertically
public float cameraDistance = -10.0f;  // default z-position of camera
public gameobject player;

Vector3 playerPos = player.transform.position; line based on how the player 
Vector3 cameraPos = new Vector3(playerPos.x, baseCameraHeight, cameraDistance);
if (playerPos.y > heightThreshold)
{
    cameraPos.y += playerPos.y - heightThreshold;
}
Camera.main.transform.position = cameraPos;

此代码可以正常工作，除非玩家到达高度点时，它将跟随玩家，但它将玩家保持在屏幕的最上方，我可以寻求帮助吗？

Answer 1

使用此代码：

public float heightThreshold = 20.0f; // minimum height for camera to follow vertically
public float cameraDistance = -10.0f;  // default z-position of camera
public GameObject player;
public Vector3 offset;

private float currentX;
private float currentY;

void Start()
{
    currentX = player.transform.position.x;
    currentY = player.transform.position.y;
}

void LateUpdate()
{
    currentX = player.transform.position.x;
    currentY = Mathf.Lerp(currentY, player.transform.y, 0.125f);

    Camera.main.transform.positoin = new Vector3(currentX, currentY, cameraDistance) + offset;

    if (player.transform.position.y > Camera.main.transform.position.y + heightThreshold)
        currentY = player.transform.position.y - heightThreshold;
    else if (player.transform.position.y < Camera.main.transform.position.y - heightThreshold)
        currentY = player.transform.position.y + heightThreshold;
}

Answer 2

当您从玩家的位置移开高度阈值时，您会将相机降低高度阈值，从而使角色出现在屏幕顶部。当其高于该阈值以将播放器居中时，将相机的y位置设置为恰好与播放器的y位置。用以下代码替换if语句中的代码：

cameraPos.y = playerPos.y;

这将可怕地发生，而无需线性插值，但应为您提供预期的结果。

更平滑的相机将使用线性插值（Google it）：

void FixedUpdate()
{
        cameraPos.x = playerPos.x
        if (playerPos.y > heightThreshold)
        {
        cameraPos.y = Mathf.Lerp(cameraPos.y, playerPos.y, Time.deltaTime * speed);
     //Speed should be changed by you to increase the speed the camera moves upwards.
        }
        else
        {
        cameraPos.y = MathF.Lerp(cameraPos.y, defaultCameraYValue, Time.deltaTime * speed);
//Default camera value is the Y value you want the camera to normally travel at
        }
    Camera.main.transform.position = cameraPos;
}

Unity中的2D摄像头控制器出现问题

2 个答案: