/**
* go(): This is in fact the main game loop.
* For the moment it computes physics and output sounds on each frame
* but this could be optimized further. It also computes IA on each frame...
*/
bool HOO::Application::go(){
startup();
while(keepRunning()){
renderOneFrame();
computePhysics();
computeIA();
outputSound();
}
shutDown();
return 0;
}
/* Computes acceleration to every control point of the chain,
which is in state given by 'chain'.
Returns result in array 'a'. */
void computeAcceleration(struct chain * chain, struct point a[])
{
for(int i=1; i<=chain->number; i++)
{
chain->f[i].x = 0;
chain->f[i].y = 0;
}
if(isRandomforce)
for(int i=1; i<=chain->number; i++)
{
chain->f[i].x = PN.PerlinNoise1D(tempCount++, 1000, 0.7) * 500;
chain->f[i].y = PN.PerlinNoise1D(tempCount, 1000, 0.7) * 500;
}
//Gravity Force
if(isGravity)
for(int i=1; i<=chain->number; i++)
chain->f[i].y = -GRAVITY;
//Damping Force
if(isDamping)
for(int i=1; i<=chain->number; i++)
{
chain->f[i].x += - (chain->v[i].x * DAMPINGCOEF);
chain->f[i].y += - (chain->v[i].y * DAMPINGCOEF);
}
//User Force
for(int i=1; i<=chain->number; i++)
chain->f[i].x += g_vDiffPos[0] * 0.5;
for(int i=1; i<=chain->number; i++)
chain->f[i].y += g_vDiffPos[1] * 0.5;
if(pushUp)
for(int i=1; i<=chain->number; i++)
chain->f[i].y += USERFORCE;
if(pushDown)
for(int i=1; i<=chain->number; i++)
chain->f[i].y -= USERFORCE;
if(pushLeft)
for(int i=1; i<=chain->number; i++)
chain->f[i].x -= USERFORCE;
if(pushRight)
for(int i=1; i<=chain->number; i++)
chain->f[i].x += USERFORCE;
//Plane Collision
if(isPlane)
for(int i=1; i<=chain->number; i++)
if(chain->p[i].y > 0)
{
chain->f[i].y += -1.0 * chain->p[i].y * KCOLLISION;
}
computePhysics(chain, a);
}
