如何渲染 2d 横向卷轴游戏 [英] How to render a 2d side-scroller game

问题描述

我不太明白我想渲染侧卷轴的方式?当我的角色移动时，我怎么知道要渲染什么?我应该为角色使用什么样的定位?我希望我的问题很清楚

I do not really understand the way I'm suppose to render a side-scroller? How do I know what to render when my character move? What kind of positionning should I use for the characters? I hope my question is clear

推荐答案

我发现的最简单的方法是有一个 characterX 和 characterY 变量 [整数或浮点数，无论你想要什么] 然后有一个 cameraX 和 cameraY 变量.场景中的每个对象都在ObjectX-cameraX、ObjectY-cameraY...

The easiest way i've found to do it is have a characterX and characterY variable [integer or float, whatever you want] Then have a cameraX and cameraY variable. Every object in the scene is drawn at theObjectX-cameraX, theObjectY-cameraY...

CameraX/CameraY 由一个类似于中点的公式补间，因此最终它们将达到 playerx/playery[Cx = (Cx*99+Px)/100] ... 是的

CameraX/CameraY are tweened by a similar-to-midpoint formula so eventually they'll reach playerx/playery[Cx = (Cx*99+Px)/100] ... yeah

通过这样做，每个对象都会在舞台空间中移动，并且仅在渲染时进行转换[让您免于头痛]

By doing this, every object moves in the stage's space, and is transformed only on render [saving you from headaches]

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