Hey, i'm stuck in Sprite Kit with this problem.
Basically I have an Asteroids type game. But instead of firing from the front of my ship at the rock, I am firing a missile from the side of my ship that arcs towards the rock. Since the rock can be anywhere on the screen (above below, side) I am having a hard time creating the arc.
I can get the CGPoints of both objects and can calculate the distance between them. But generating the arc is hard.
Here is my code
Right now I am just using the the center of the screen at x:600 y:300. If I divided the distance of the 2 points I can get where the center would be, or the highest point of where the arc should be.
Can anyone give me a push in the right direction in solving this problem?
Basically I have an Asteroids type game. But instead of firing from the front of my ship at the rock, I am firing a missile from the side of my ship that arcs towards the rock. Since the rock can be anywhere on the screen (above below, side) I am having a hard time creating the arc.
I can get the CGPoints of both objects and can calculate the distance between them. But generating the arc is hard.
Here is my code
Code:
-(CGMutablePathRef)createCGPath:(CGPoint)missleStartPoint and:(CGPoint)targetEndPoint{
CGMutablePathRef pathRef = CGPathCreateMutable();
CGPathMoveToPoint(pathRef, NULL, missleStartPoint.x, missleStartPoint.y);
CGFloat distance = [self getDistanceSquared:missleStartPoint and:targetEndPoint]; // distance between 2 objects
CGPathAddQuadCurveToPoint(pathRef, nil, 600, 300, targetEndPoint.x, targetEndPoint.y);
return pathRef;
}
- (float)getDistanceSquared:(CGPoint)p1 and:(CGPoint)p2 { // calculate distance between 2 points
return hypotf(p2.x - p1.x, p2.y - p1.y);
}Right now I am just using the the center of the screen at x:600 y:300. If I divided the distance of the 2 points I can get where the center would be, or the highest point of where the arc should be.
Can anyone give me a push in the right direction in solving this problem?