I have got my code to jump up and down continuously when I press the space bar How do I get my sprite to jump up and down only once when I hit the space bar.
float velY = 0.0f;
float velX = 0.0f;
float gravity = 0.5f;
bool onGround = false;
void StartJump()
{
if (onGround)
{
velY = 12.0f;
onGround = false;
}
}
void EndJump()
{
if (velY < 6.0f)
{
velY = 6.0f;
}
}
void Update()
{
velY += gravity;
y += velY;
x += velX;
if (y <= 0.0f)
{
y = 0.0f;
velY = 0.0f;
onGround = true;
}
}
void jump()
{
x--;
y = (-0.1f * (x * x)) + 50;
if (x <= -22.5)
{
x = 22.5;
}
glutPostRedisplay();
cout << x << " " << y << endl;
}
void Render()
{
jump();
}
void Loop(int val)
{
Update();
Render();
// glutTimerFunc(50, Loop, 0);
}
void handleKeypress(unsigned char key, int x, int y)
{
switch (key)
{
case 27:
exit(0);
break;
case 32:
StartJump();
Loop(0);
EndJump();
// jump();
break;
}
glutPostRedisplay();
}
