#include <stdio.h>
#include<conio.h>
#include<math.h>
#define PI 3.1415926535897932384626433832795
#define G -9.81
double HEIGHT(float V, int A, float T);
double HORIZONTAL(float V, int A, float T);
float AIRTIME(float V, int A);
int main()
{
	double height_, horizontal_;
	float T, V, airtime_;
	int flagV = 0, flagA = 0, A;
	printf("please enter speed (0.0 - 100.0) and angle (0 - 90): ");
	scanf("%f %d", &V, &A);
	while (flagV = 0)
	{
		if (V < 100 && V > 0)
		{
			flagV = 1;
		}
		else
		{
			printf("\nincorrect input, speed must be between 0 to 100");
			scanf("%f", &V);
		}
	}
	while (flagA = 0)
	{
		if (A < 90 && A > 90)
		{
			flagA = 1;
		}
		else
		{
			printf("inccorect input, angle must be between 0 to 90");
			scanf("%d", &A);
		}
	}
	airtime_ = AIRTIME(V,A);
	for (T = 0; T <= airtime_; T = T + 0.1)
	{
		horizontal_ = HORIZONTAL(V, A, T);
		height_ = HEIGHT(V, A, T);
		printf("\ntime : %.1f  .. S = %ld    H = %ld", T, horizontal_, height_);

	}
	getch();
	return 0;
}

float AIRTIME(float V, int A)
{
	float AIRTIME, Vy, halfway;
	Vy = V * sin(A * PI) / 180;
	halfway = ((Vy)* (-1)) / G;
	AIRTIME = halfway * 2;
	return AIRTIME;
}

double HEIGHT(float V, int A, float T)
{
	double HEIGHT;
	HEIGHT = (V * sin(A * PI) / 180)*T + ((G *T*T) / 2);
	return HEIGHT;
}

double HORIZONTAL(float V, int A, float T)
{
	double Vx, HORIZONTAL;
	HORIZONTAL = (V * cos(A * PI) / 180) * T;
	return HORIZONTAL;
}