void EnviroCanvas::OnAfterUpdate()
{
#ifndef __WXMAC__
if (m_bFirstPaint)
VTLOG1("EnviroCanvas: update status bar\n");
#endif
EnviroFrame *frame = (EnviroFrame*) GetParent();
// update the status bar every 1/10 of a second
static float last_stat = 0.0f;
static vtString last_msg;
vtString current_msg = g_App.GetMessage1() + g_App.GetMessage2();
float cur = vtGetTime();
if (cur - last_stat > 0.1f || current_msg != last_msg)
{
last_msg = current_msg;
last_stat = cur;
frame->UpdateStatus();
}
frame->UpdateLODInfo();
g_App.UpdateCompass();
}
void vtJoystickEngine::Eval()
{
if (!m_pStick)
return;
float fTime = vtGetTime(), fElapsed = fTime - m_fLastTime;
vtTransform *pTarget = (vtTransform*) GetTarget();
if (pTarget)
{
wxPoint p = m_pStick->GetPosition();
int buttons = m_pStick->GetButtonState();
float dx = ((float)p.x / 32768) - 1.0f;
float dy = ((float)p.y / 32768) - 1.0f;
// use a small dead zone to avoid drift
const float dead_zone = 0.04f;
if (buttons & wxJOY_BUTTON2)
{
// move up down left right
if (fabs(dx) > dead_zone)
pTarget->TranslateLocal(FPoint3(dx * m_fSpeed * fElapsed, 0.0f, 0.0f));
if (fabs(dy) > dead_zone)
pTarget->Translate(FPoint3(0.0f, dy * m_fSpeed * fElapsed, 0.0f));
}
else if (buttons & wxJOY_BUTTON3)
{
// pitch up down, yaw left right
if (fabs(dx) > dead_zone)
pTarget->RotateParent(FPoint3(0,1,0), -dx * fElapsed);
if (fabs(dy) > dead_zone)
pTarget->RotateLocal(FPoint3(1,0,0), dy * fElapsed);
}
else
{
// move forward-backward, turn left-right
if (fabs(dy) > dead_zone)
pTarget->TranslateLocal(FPoint3(0.0f, 0.0f, dy * m_fSpeed * fElapsed));
if (fabs(dx) > dead_zone)
pTarget->RotateParent(FPoint3(0,1,0), -dx * fElapsed);
}
}
m_fLastTime = fTime;
}
void vtTimeEngine::Eval()
{
float time = vtGetTime();
if (m_last_time == -1.0f)
m_last_time = time;
if (m_fSpeed != 0.0f)
{
float elapsed = (time - m_last_time);
m_fSeconds += (elapsed * m_fSpeed);
if (m_fSeconds > 1.0f)
{
int full = (int) m_fSeconds;
m_time.Increment(full);
_InformTarget();
m_fSeconds -= full;
}
}
m_last_time = time;
}
//changes the light colors at a node.
void vtIntersectionEngine::Eval() {
float t = vtGetTime();
if (!m_bFirstTime) {
if (t > m_fNextChange) {
m_iCurState++;
m_iCurState = m_iCurState % m_iTotalStates;
//assign new light states.
for (int i = 0; i < m_pNode->m_iLinks; i++) {
LightStatus l = m_Lights[i+m_pNode->m_iLinks*m_iCurState];
m_pNode->SetLightStatus(i, l);
}
if (m_iCurState & 0x1) {
//if curret state is odd:
//there is a yellow light. use shorter time
m_fNextChange = t + LT_SWITCH_TIME2;
} else {
//lights are green and red. using longer time
m_fNextChange = t + LT_SWITCH_TIME;
}
}
} else {
m_bFirstTime = false;
//generate current status randomly.
m_iCurState = (rand() % m_iTotalStates);
//generate offset time randomly.
int offset;
if (m_iCurState & 0x1) {
offset = rand() % LT_SWITCH_TIME2;
} else {
offset = rand() % LT_SWITCH_TIME;
}
//assign new light states.
for (int i = 0; i < m_pNode->m_iLinks; i++) {
m_pNode->SetLightStatus(i, m_Lights[i+m_pNode->m_iLinks*m_iCurState]);
}
m_fNextChange = t + offset;
}
}
