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Question by isaacduncan02 · Jul 08, 2018 at 07:06 AM · physicsvelocityprojectile

trajectory motion predictor

  Vector3 CalculateArcPoint(float t, float maxDistance)
     {
         float x = t * maxDistance; //ensure proper spacing
         float y = x * Mathf.Tan(radianAngle) - ((gravity * x * x) / (2 * velocity * velocity * Mathf.Cos(radianAngle) * Mathf.Cos(radianAngle))); //parabola of curve to find pos y
 
         Vector3 point = new Vector3(x + playerPos.position.x, y + playerPos.position.y); //adding offset
 
         return point; //returns to array for lineRenderer
     }


in my game i have ball jumping from left to right on the screen in a parabola curve. When it jumps to the right so X-component of the velocity is positive my line render correctly shows its predicted pathway but when its jumping from the otherside(to the left) all the points in the x-axis are shifted to the right as if its jumping to the right again. (The y-axis points are fine). Am not sure what the problem is here?

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Answer by rrcsapp · Jan 29, 2019 at 01:17 PM

You are good to go , this post help me a lot to implement projectile motion. At the end of the post you will find full demo.

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