如何在 Unity 中以不同的分辨率正确处理 position 对象？

Question

I'm writing an Android game and as I wanted it to be played in portrait mode I want the scale of the objects to remain the same in regards to the screen width. I think I managed to do that with this code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Android;

public class PowerPosition : MonoBehaviour
{
    void Start()
    {
        float w = Screen.width;
        float h = Screen.height;
        Vector2 position = (Camera.main.ScreenToWorldPoint(new Vector2(w * 0.9f, w * 0.53f)));
        float ratio = (w / h) / (9f / 16f);
        gameObject.transform.position = new Vector3(position.x * ratio, position.y * ratio, 0);
        gameObject.transform.localScale = new Vector3(gameObject.transform.localScale.x * ratio, gameObject.transform.localScale.y * ratio, gameObject.transform.localScale.z * ratio);

The issue is with the positioning. It changes and objects that should have relative distances from each other get messed up. Objects that should appear one above the other become too close and overlap. The "position * ratio" was a test, it doesn't work well either with or without that. Here for example I had to items that I wanted to keep a consistent distance from the lower right end of the screen.

How can you fix that?

Answer 1

You can use percentage calculation as orientationbase to scale. That represents a relational scaleability.

There is a false friend in your mind. The displays haves different dots per inch. Will say, this value may be included your calculation.

Answer 2

I will try to explain it differently.

A device has a screen resolution of X-axis, Y-axis, color depth and ppi / dpi.

You can buy a display with 1920x1080xColors with 6 "or 32". With large displays you have a lower pixel density compared to small displays.

A device itself only changes X and Y if you have an orientation sensor.

Landscape 1920x1080 becomes portrait 1080x1920.

When I take an iPhone, the display has a higher pixel density than the cheaper Android devices.

In mathematics there is the famous three-sentence that is suitable for calculating proportions.

You can query the value for the pixel density from the system. You can use this value for rescaling your buttons.

I work mostly with horizontal centering. So I keep the symmetry.