如何使一个对象移动到C#XNA中的另一个对象 [英] How to make an object move towards another object in C# XNA

问题描述

我目前正在尝试使一个物体移向另一个物体.到目前为止，我已经有这段代码可以尝试并实现.

I'm currently trying to make an object move towards another. I have this code so far to try and achieve it.

double angleRad = Math.Atan2(mdlPosition.Z+treeTransform.Translation.Z, mdlPosition.X-treeTransform.Translation.X);

enemyPos.X += (float)Math.Cos(angleRad) * 0.2f;
enemyPos.Z += (float)Math.Sin(angleRad) * 0.2f;

每当我移动玩家角色时，对象就会移动，但不会移向角色当前位置.如何将其指向当前位置?

Whenever I move my player character, the object moves, but not towards the characters current position. How can I direct it towards current position?

推荐答案

通常，您应该以这种方式进行操作.我想你想让敌人朝玩家前进.

Normally you should act in this way. I suppose you want that the enemy will move toward the player.

Vector2 dir = player.Position - enemy.Position;
dir.Normalize();

现在您只需要执行每个周期:

Now you only have to do every cycle:

enemy.Position += dir * speed;

编辑

要使玩家面对敌人，请尝试计算dir的角度并将其设置为抽奖电话的rotation参数.您应该使用Math.Atan2(dir.Y, dir.X)

To make the enemy face the player try calculate the angle of dir and set it as rotation parameter of your draw call. You should achieve this using Math.Atan2(dir.Y, dir.X)

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