void BRAIN::build(int nb_in,int nb_out,int rg) // Create the neural network
{
destroy();
q = rg;
nb_neuron = q + nb_in + nb_out; // Number of layers * number of input NEURONs + number of output NEURONs
n = nb_in;
p = nb_out;
neuron = new NEURON[nb_neuron];
n_out = new float[nb_out];
for(int i = 0; i < nb_neuron; ++i)
{
neuron[i].var = 0.0f;
neuron[i].weight = NULL;
if (i < nb_out)
n_out[i] = 0.0f;
if (i >= n && i < nb_neuron - p)
{
neuron[i].weight = new float[n];
for(int e = 0 ; e < n ; ++e)
neuron[i].weight[e] = float(TA3D_RAND() % 2001) * 0.001f - 1.0f;
}
else
{
if (i >= n)
{
neuron[i].weight = new float[q];
for(int e = 0 ; e < q ; ++e)
neuron[i].weight[e] = float(TA3D_RAND() % 2001) * 0.001f - 1.0f;
}
}
}
}
void BRAIN::mutation() // Make some changes to the neural network
{
int index = (TA3D_RAND() % (nb_neuron-n)) + n;
int mod_w = 0;
if (index < nb_neuron - p)
mod_w=TA3D_RAND() % n;
else
mod_w = TA3D_RAND() % q;
neuron[index].weight[mod_w] += float((TA3D_RAND() % 200001) - 100000) * 0.00001f;
}
void Camera::updateShake(const float dt)
{
if (shakeDuration > 0.0f)
{
shakeDuration -= dt;
float dt_step = 0.03f;
for (float c_dt = 0.0f ; c_dt < dt ; c_dt += dt_step)
{
float rdt = Math::Min(dt_step, dt - c_dt);
Vector3D rand_vec( float((TA3D_RAND() % 2001) - 1000) * 0.001f * shakeMagnitude,
float((TA3D_RAND() % 2001) - 1000) * 0.001f * shakeMagnitude,
float((TA3D_RAND() % 2001) - 1000) * 0.001f * shakeMagnitude );
shakeVector += -rdt * 10.0f * shakeVector;
shakeVector += rand_vec;
if (shakeVector.x < -20.0f) shakeVector.x = -20.0f;
else if(shakeVector.x > 20.0f) shakeVector.x = 20.0f;
if (shakeVector.y < -20.0f ) shakeVector.y = -20.0f;
else if(shakeVector.y > 20.0f) shakeVector.y = 20.0f;
if (shakeVector.z < -20.0f) shakeVector.z = -20.0f;
else if(shakeVector.z > 20.0f) shakeVector.z = 20.0f;
}
}
else
{
float dt_step = 0.03f;
for (float c_dt = 0.0f; c_dt < dt; c_dt += dt_step)
{
float rdt = Math::Min(dt_step, dt - c_dt);
shakeVector += -rdt * 10.0f * shakeVector;
if( shakeVector.x < -20.0f ) shakeVector.x = -20.0f;
else
if( shakeVector.x > 20.0f) shakeVector.x = 20.0f;
if (shakeVector.y < -20.0f) shakeVector.y = -20.0f;
else
if( shakeVector.y > 20.0f) shakeVector.y = 20.0f;
if (shakeVector.z < -20.0f) shakeVector.z = -20.0f;
else
if( shakeVector.z > 20.0f) shakeVector.z = 20.0f;
}
}
}
