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Finally, what I did was just make a method that used the Pythagorean theorem to make the missile move the same distance to the banana every time the missileMove selector was called.I also made the

We’re working on an iPhone game using the excellent cocos2d library. The game has a heat-seeking missile that attempts to collide with a game object. The initial implementation was one that just tra

I have seen some people looking for ways to create seeking missiles, or have enemies continually go towards the hero even if it is moving. I have seen people give solutions such as using boids (flocki

I've been wondering, is there a feature where you can, like for my example, set the rotation of sprites depending on the direction it is going?For example :When i shoot the rocket upwards, it

首先，本文讨论的是很简单的算法。高手莫入。在飞行射击游戏中，恐怕没有一个游戏不用到跟踪算法的。比如在玩街机的时候，是不是经常挂于BOSS的“跟踪弹”？这是怎样实现的呢？很简单，只要有高中的一点数学知识就行了！首先回忆几个三角函数sin,cos,tan(tg),arctan(arctg)sin(x)—对边/斜边。在1，2项限为正，3，4项限为负cos(x)—邻边/斜边

点到直线的距离可以直接做垂线求取，但线段是有首尾点的，若要求距离则要考虑首尾点。    点和线段的关系大致可以有下面几种：有特殊情况，是P点和A或B重合，否则，根据∠PAB或∠PBA的角度可以有图1、图2、图4三种情况（包括点在AB之间，算是零度角）。    我做的算法可以快速、简洁地判断角度是钝角还是锐角。    在求垂线距离时，用海伦公式取代三角函数