bool CScreensaverPlasma::Start()
{
int speed = kodi::GetSettingInt("speed");
m_zoom = kodi::GetSettingInt("zoom");
m_focus = float(kodi::GetSettingInt("focus")) / 50.0f + 0.3f;
m_maxdiff = 0.004f * float(speed);
m_resolution = kodi::GetSettingInt("resolution");
m_aspectRatio = float(Width()) / float(Height());
std::string fraqShader = kodi::GetAddonPath("resources/shaders/frag.glsl");
std::string vertShader = kodi::GetAddonPath("resources/shaders/vert.glsl");
if (!LoadShaderFiles(vertShader, fraqShader) || !CompileAndLink())
return false;
glGenBuffers(1, &m_vertexVBO);
// Initialize pseudorandom number generator
srand((unsigned)time(nullptr));
// Initialize constants
for (int i = 0; i < NUMCONSTS; i++)
{
m_ct[i] = rsRandf(PIx2);
m_cv[i] = rsRandf(0.005f * float(speed)) + 0.0001f;
}
m_projMat = glm::mat4(1.0f);
m_modelMat = glm::mat4(1.0f);
SetPlasmaSize();
return true;
}
void starBurst::restart(float* position){
int i;
for(i=0; i<SB_NUM_STARS; i++){ // don't restart if any star is still active
if(stars_active[i])
return;
}
if(size < 3.0f) // or if flare hasn't faded out completely
return;
float color[3];
color[0] = rsRandf(1.0f);
color[1] = rsRandf(1.0f);
color[2] = rsRandf(1.0f);
color[rsRandi(3)] = 1.0f;
for(i=0; i<SB_NUM_STARS; i++){
stars_active[i] = 1;
stars[i]->pos[0] = position[0];
stars[i]->pos[1] = position[1];
stars[i]->pos[2] = position[2];
stars[i]->color[0] = color[0];
stars[i]->color[1] = color[1];
stars[i]->color[2] = color[2];
}
size = 0.0f;
pos[0] = position[0];
pos[1] = position[1];
pos[2] = position[2];
}
void CParticle::Init()
{
m_width = rsRandf(0.8f) + 0.2f;
m_step = 0.0f;
m_spinAngle = rsRandf(360);
hsl2rgb(m_cy->m_hsl[0], m_cy->m_hsl[1],m_cy->m_hsl[2], m_r, m_g, m_b);
}
starBurst::starBurst(){
int i, j;
float vel[3];
float normalizer;
// initialize stars
stars = new stretchedParticle*[SB_NUM_STARS];
stars_active = new bool[SB_NUM_STARS];
stars_velocity = new float*[SB_NUM_STARS];
for(i=0; i<SB_NUM_STARS; i++){
stars[i] = new stretchedParticle;
stars_active[i] = 0;
stars_velocity[i] = new float[3];
vel[0] = rsRandf(1.0f) - 0.5f;
vel[1] = rsRandf(1.0f) - 0.5f;
vel[2] = rsRandf(1.0f) - 0.5f;
normalizer = (rsRandf(0.75f) + 0.25f)
/ sqrtf(vel[0] * vel[0] + vel[1] * vel[1] + vel[2] * vel[2]);
stars_velocity[i][0] = vel[0] * normalizer;
stars_velocity[i][1] = vel[1] * normalizer;
stars_velocity[i][2] = vel[2] * normalizer;
}
float xyz[3];
float ci, si, cj, sj, cjj, sjj;
call_list = glGenLists(1);
glNewList(call_list, GL_COMPILE);
for(j=0; j<32; j++){
cj = cosf(float(j) * RS_PIx2 / 32.0f);
sj = sinf(float(j) * RS_PIx2 / 32.0f);
cjj = cosf(float(j+1) * RS_PIx2 / 32.0f);
sjj = sinf(float(j+1) * RS_PIx2 / 32.0f);
glBegin(GL_TRIANGLE_STRIP);
for(i=0; i<=32; i++){
ci = cosf(float(i) * RS_PIx2 / 32.0f);
si = sinf(float(i) * RS_PIx2 / 32.0f);
xyz[0] = sj * ci;
xyz[1] = cj;
xyz[2] = sj * si;
glNormal3fv(xyz);
glVertex3fv(xyz);
xyz[0] = sjj * ci;
xyz[1] = cjj;
xyz[2] = sjj * si;
glNormal3fv(xyz);
glVertex3fv(xyz);
}
glEnd();
}
glEndList();
size = 4.0f;
}
ion::ion ()
{
float temp;
pos = rsVec (0.0f, 0.0f, 0.0f);
rgb = rsVec (0.0f, 0.0f, 0.0f);
temp = rsRandf (2.0f) + 0.4f;
size = float (dSize) * temp;
speed = float (dSpeed) * 12.0f / temp;
}
void changeSettings ()
{
do {
equationBase = rsRandf (10) - 5;
} while (equationBase <= 2 && equationBase >= -2); // we don't want between 1 and -1
blurColor[0] = rsRandi (100) / 50.0;
blurColor[1] = rsRandi (100) / 50.0;
blurColor[2] = rsRandi (100) / 50.0;
lineColor[0] = rsRandi (100) / 50.0;
lineColor[1] = rsRandi (100) / 50.0;
lineColor[2] = rsRandi (100) / 50.0;
SUBLOOPS = rsRandi (3) + 2;
graphTo = rsRandi (16) + 15;
speed = (rsRandi (225) + 75) / 1000000.0;
if (rsRandi (2) == 1) {
speed *= -1;
}
}
void CCyclone::Update(CScreensaverCyclone* base)
{
int i;
int temp;
float between;
float diff;
int direction;
float point[3];
float step;
float blend;
// update cyclone's path
temp = gCycloneSettings.dComplexity + 2;
if (m_xyzChange[temp][0] >= m_xyzChange[temp][1])
{
m_oldxyz[temp][0] = m_xyz[temp][0];
m_oldxyz[temp][1] = m_xyz[temp][1];
m_oldxyz[temp][2] = m_xyz[temp][2];
m_targetxyz[temp][0] = rsRandf(float(WIDTH*2)) - float(WIDTH);
m_targetxyz[temp][1] = float(HIGHT);
m_targetxyz[temp][2] = rsRandf(float(WIDTH*2)) - float(WIDTH);
m_xyzChange[temp][0] = 0.0f;
m_xyzChange[temp][1] = rsRandf(150.0f / float(gCycloneSettings.dSpeed)) + 75.0f / float(gCycloneSettings.dSpeed);
}
temp = gCycloneSettings.dComplexity + 1;
if (m_xyzChange[temp][0] >= m_xyzChange[temp][1])
{
m_oldxyz[temp][0] = m_xyz[temp][0];
m_oldxyz[temp][1] = m_xyz[temp][1];
m_oldxyz[temp][2] = m_xyz[temp][2];
m_targetxyz[temp][0] = m_xyz[temp+1][0];
m_targetxyz[temp][1] = rsRandf(float(HIGHT / 3)) + float(HIGHT / 4);
m_targetxyz[temp][2] = m_xyz[temp+1][2];
m_xyzChange[temp][0] = 0.0f;
m_xyzChange[temp][1] = rsRandf(100.0f / float(gCycloneSettings.dSpeed)) + 75.0f / float(gCycloneSettings.dSpeed);
}
for (i = gCycloneSettings.dComplexity; i > 1; i--)
{
if (m_xyzChange[i][0] >= m_xyzChange[i][1])
{
m_oldxyz[i][0] = m_xyz[i][0];
m_oldxyz[i][1] = m_xyz[i][1];
m_oldxyz[i][2] = m_xyz[i][2];
m_targetxyz[i][0] = m_targetxyz[i+1][0] + (m_targetxyz[i+1][0] - m_targetxyz[i+2][0]) / 2.0f + rsRandf(float(WIDTH / 2)) - float(WIDTH / 4);
m_targetxyz[i][1] = (m_targetxyz[i+1][1] + m_targetxyz[i-1][1]) / 2.0f + rsRandf(float(HIGHT / 8)) - float(HIGHT / 16);
m_targetxyz[i][2] = m_targetxyz[i+1][2] + (m_targetxyz[i+1][2] - m_targetxyz[i+2][2]) / 2.0f + rsRandf(float(WIDTH / 2)) - float(WIDTH / 4);
if (m_targetxyz[i][1] > HIGHT)
m_targetxyz[i][1] = HIGHT;
if (m_targetxyz[i][1] < -HIGHT)
m_targetxyz[i][1] = -HIGHT;
m_xyzChange[i][0] = 0.0f;
m_xyzChange[i][1] = rsRandf(75.0f / float(gCycloneSettings.dSpeed)) + 50.0f / float(gCycloneSettings.dSpeed);
}
}
if (m_xyzChange[1][0] >= m_xyzChange[1][1])
{
m_oldxyz[1][0] = m_xyz[1][0];
m_oldxyz[1][1] = m_xyz[1][1];
m_oldxyz[1][2] = m_xyz[1][2];
m_targetxyz[1][0] = m_targetxyz[2][0] + rsRandf(float(WIDTH / 2)) - float(WIDTH / 4);
m_targetxyz[1][1] = -rsRandf(float(HIGHT / 2)) - float(HIGHT / 4);
m_targetxyz[1][2] = m_targetxyz[2][2] + rsRandf(float(WIDTH / 2)) - float(WIDTH / 4);
m_xyzChange[1][0] = 0.0f;
m_xyzChange[1][1] = rsRandf(50.0f / float(gCycloneSettings.dSpeed)) + 30.0f / float(gCycloneSettings.dSpeed);
}
if (m_xyzChange[0][0] >= m_xyzChange[0][1])
{
m_oldxyz[0][0] = m_xyz[0][0];
m_oldxyz[0][1] = m_xyz[0][1];
m_oldxyz[0][2] = m_xyz[0][2];
m_targetxyz[0][0] = m_xyz[1][0] + rsRandf(float(WIDTH / 8)) - float(WIDTH / 16);
m_targetxyz[0][1] = float(-HIGHT);
m_targetxyz[0][2] = m_xyz[1][2] + rsRandf(float(WIDTH / 8)) - float(WIDTH / 16);
m_xyzChange[0][0] = 0.0f;
m_xyzChange[0][1] = rsRandf(100.0f / float(gCycloneSettings.dSpeed)) + 75.0f / float(gCycloneSettings.dSpeed);
}
for (i = 0; i < (gCycloneSettings.dComplexity+3); i++)
{
between = m_xyzChange[i][0] / m_xyzChange[i][1] * (2 * M_PI);
between = (1.0f - float(cos(between))) / 2.0f;
m_xyz[i][0] = ((m_targetxyz[i][0] - m_oldxyz[i][0]) * between) + m_oldxyz[i][0];
m_xyz[i][1] = ((m_targetxyz[i][1] - m_oldxyz[i][1]) * between) + m_oldxyz[i][1];
m_xyz[i][2] = ((m_targetxyz[i][2] - m_oldxyz[i][2]) * between) + m_oldxyz[i][2];
m_xyzChange[i][0] += base->FrameTime();
}
// Update cyclone's widths
temp = gCycloneSettings.dComplexity + 2;
if (m_widthChange[temp][0] >= m_widthChange[temp][1])
{
m_oldWidth[temp] = m_width[temp];
m_targetWidth[temp] = rsRandf(225.0f) + 75.0f;
m_widthChange[temp][0] = 0.0f;
m_widthChange[temp][1] = rsRandf(50.0f / float(gCycloneSettings.dSpeed)) + 50.0f / float(gCycloneSettings.dSpeed);
}
temp = gCycloneSettings.dComplexity + 1;
if (m_widthChange[temp][0] >= m_widthChange[temp][1])
{
m_oldWidth[temp] = m_width[temp];
m_targetWidth[temp] = rsRandf(100.0f) + 15.0f;
m_widthChange[temp][0] = 0.0f;
m_widthChange[temp][1] = rsRandf(50.0f / float(gCycloneSettings.dSpeed)) + 50.0f / float(gCycloneSettings.dSpeed);
}
for (i = gCycloneSettings.dComplexity; i > 1; i--)
{
if (m_widthChange[i][0] >= m_widthChange[i][1])
{
m_oldWidth[i] = m_width[i];
m_targetWidth[i] = rsRandf(50.0f) + 15.0f;
m_widthChange[i][0] = 0.0f;
m_widthChange[i][1] = rsRandf(50.0f / float(gCycloneSettings.dSpeed)) + 40.0f / float(gCycloneSettings.dSpeed);
}
}
if (m_widthChange[1][0] >= m_widthChange[1][1])
{
m_oldWidth[1] = m_width[1];
m_targetWidth[1] = rsRandf(40.0f) + 5.0f;
m_widthChange[1][0] = 0.0f;
m_widthChange[1][1] = rsRandf(50.0f / float(gCycloneSettings.dSpeed)) + 30.0f / float(gCycloneSettings.dSpeed);
}
if (m_widthChange[0][0] >= m_widthChange[0][1])
{
m_oldWidth[0] = m_width[0];
m_targetWidth[0] = rsRandf(30.0f) + 5.0f;
m_widthChange[0][0] = 0.0f;
m_widthChange[0][1] = rsRandf(50.0f / float(gCycloneSettings.dSpeed)) + 20.0f / float(gCycloneSettings.dSpeed);
}
for (i = 0; i < (gCycloneSettings.dComplexity+3); i++)
{
between = m_widthChange[i][0] / m_widthChange[i][1];
m_width[i] = ((m_targetWidth[i] - m_oldWidth[i]) * between) + m_oldWidth[i];
m_widthChange[i][0] += base->FrameTime();
}
// Update cyclones color
if (m_hslChange[0] >= m_hslChange[1])
{
m_oldhsl[0] = m_hsl[0];
m_oldhsl[1] = m_hsl[1];
m_oldhsl[2] = m_hsl[2];
m_targethsl[0] = rsRandf(1.0f);
m_targethsl[1] = rsRandf(1.0f);
m_targethsl[2] = rsRandf(1.0f) + 0.5f;
if (m_targethsl[2] > 1.0f)
m_targethsl[2] = 1.0f;
m_hslChange[0] = 0.0f;
m_hslChange[1] = rsRandf(30.0f) + 2.0f;
}
between = m_hslChange[0] / m_hslChange[1];
diff = m_targethsl[0] - m_oldhsl[0];
direction = 0;
if ((m_targethsl[0] > m_oldhsl[0] && diff > 0.5f) || (m_targethsl[0] < m_oldhsl[0] && diff < -0.5f))
if (diff > 0.5f)
direction = 1;
hslTween(m_oldhsl[0], m_oldhsl[1], m_oldhsl[2],
m_targethsl[0], m_targethsl[1], m_targethsl[2], between, direction,
m_hsl[0], m_hsl[1], m_hsl[2]);
m_hslChange[0] += base->FrameTime();
if (gCycloneSettings.dShowCurves)
{
unsigned int ptr = 0;
sLight curves[std::max(gCycloneSettings.dComplexity+3, 50)];
base->m_lightingEnabled = 0;
for (step=0.0; step<1.0; step+=0.02f)
{
point[0] = point[1] = point[2] = 0.0f;
for (i = 0; i < (gCycloneSettings.dComplexity+3); i++)
{
blend = base->m_fact[gCycloneSettings.dComplexity+2] / (base->m_fact[i]
* base->m_fact[gCycloneSettings.dComplexity+2-i]) * powf(step, float(i))
* powf((1.0f - step), float(gCycloneSettings.dComplexity+2-i));
point[0] += m_xyz[i][0] * blend;
point[1] += m_xyz[i][1] * blend;
point[2] += m_xyz[i][2] * blend;
}
curves[ptr ].color = sColor(0.0f, 1.0f, 0.0f);
curves[ptr++].vertex = sPosition(point);
}
base->DrawEntry(GL_LINE_STRIP, curves, ptr);
ptr = 0;
for (i = 0; i < (gCycloneSettings.dComplexity+3); i++)
{
curves[ptr ].color = sColor(1.0f, 0.0f, 0.0f);
curves[ptr++].vertex = sPosition(&m_xyz[i][0]);
}
base->DrawEntry(GL_LINE_STRIP, curves, ptr);
base->m_lightingEnabled = 1;
}
}
CCyclone::CCyclone()
{
int i;
// Initialize position stuff
m_targetxyz = new float*[gCycloneSettings.dComplexity+3];
m_xyz = new float*[gCycloneSettings.dComplexity+3];
m_oldxyz = new float*[gCycloneSettings.dComplexity+3];
for (i = 0; i < int(gCycloneSettings.dComplexity)+3; i++)
{
m_targetxyz[i] = new float[3];
m_xyz[i] = new float[3];
m_oldxyz[i] = new float[3];
}
m_xyz[gCycloneSettings.dComplexity+2][0] = rsRandf(float(WIDTH*2)) - float(WIDTH);
m_xyz[gCycloneSettings.dComplexity+2][1] = float(HIGHT);
m_xyz[gCycloneSettings.dComplexity+2][2] = rsRandf(float(WIDTH*2)) - float(WIDTH);
m_xyz[gCycloneSettings.dComplexity+1][0] = m_xyz[gCycloneSettings.dComplexity+2][0];
m_xyz[gCycloneSettings.dComplexity+1][1] = rsRandf(float(HIGHT / 3)) + float(HIGHT / 4);
m_xyz[gCycloneSettings.dComplexity+1][2] = m_xyz[gCycloneSettings.dComplexity+2][2];
for (i = gCycloneSettings.dComplexity; i > 1; i--)
{
m_xyz[i][0] = m_xyz[i+1][0] + rsRandf(float(WIDTH)) - float(WIDTH / 2);
m_xyz[i][1] = rsRandf(float(HIGHT * 2)) - float(HIGHT);
m_xyz[i][2] = m_xyz[i+1][2] + rsRandf(float(WIDTH)) - float(WIDTH / 2);
}
m_xyz[1][0] = m_xyz[2][0] + rsRandf(float(WIDTH / 2)) - float(WIDTH / 4);
m_xyz[1][1] = -rsRandf(float(HIGHT / 2)) - float(HIGHT / 4);
m_xyz[1][2] = m_xyz[2][2] + rsRandf(float(WIDTH / 2)) - float(WIDTH / 4);
m_xyz[0][0] = m_xyz[1][0] + rsRandf(float(WIDTH / 8)) - float(WIDTH / 16);
m_xyz[0][1] = float(-HIGHT);
m_xyz[0][2] = m_xyz[1][2] + rsRandf(float(WIDTH / 8)) - float(WIDTH / 16);
// Initialize width stuff
m_targetWidth = new float[gCycloneSettings.dComplexity+3];
m_width = new float[gCycloneSettings.dComplexity+3];
m_oldWidth = new float[gCycloneSettings.dComplexity+3];
m_width[gCycloneSettings.dComplexity+2] = rsRandf(175.0f) + 75.0f;
m_width[gCycloneSettings.dComplexity+1] = rsRandf(60.0f) + 15.0f;
for (i = gCycloneSettings.dComplexity; i > 1; i--)
m_width[i] = rsRandf(25.0f) + 15.0f;
m_width[1] = rsRandf(25.0f) + 5.0f;
m_width[0] = rsRandf(15.0f) + 5.0f;
// Initialize transition stuff
m_xyzChange = new float*[gCycloneSettings.dComplexity + 3];
m_widthChange = new float*[gCycloneSettings.dComplexity + 3];
for (i = 0; i < (gCycloneSettings.dComplexity+3); i++)
{
m_xyzChange[i] = new float[2]; // 0 = step 1 = total steps
m_widthChange[i] = new float[2];
m_xyzChange[i][0] = 0.0f;
m_xyzChange[i][1] = 0.0f;
m_widthChange[i][0] = 0.0f;
m_widthChange[i][1] = 0.0f;
}
// Initialize color stuff
m_hsl[0] = m_oldhsl[0] = rsRandf(1.0f);
m_hsl[1] = m_oldhsl[1] = rsRandf(1.0f);
m_hsl[2] = m_oldhsl[2] = 0.0f; // start out dark
m_targethsl[0] = rsRandf(1.0f);
m_targethsl[1] = rsRandf(1.0f);
m_targethsl[2] = 1.0f;
m_hslChange[0] = 0.0f;
m_hslChange[1] = 10.0f;
}
emitter::emitter ()
{
pos = rsVec (rsRandf (1000.0f) - 500.0f, rsRandf (1000.0f) - 500.0f, rsRandf (1000.0f) - 500.0f);
}
void reconfigure ()
{
int i, j;
int newBorder, positive;
/*
* End of old path = start of new path
*/
for (i = 0; i < 6; i++)
path[0][i] = path[segments][i];
/*
* determine if direction of motion is positive or negative
*/
/*
* update global position
*/
if (lastBorder < 6) {
if ((path[0][3] + path[0][4] + path[0][5]) > 0.0f) {
positive = 1;
globalxyz[lastBorder / 2]++;
} else {
positive = 0;
globalxyz[lastBorder / 2]--;
}
} else {
if (path[0][3] > 0.0f) {
positive = 1;
globalxyz[0]++;
} else {
positive = 0;
globalxyz[0]--;
}
if (path[0][4] > 0.0f)
globalxyz[1]++;
else
globalxyz[1]--;
if (path[0][5] > 0.0f)
globalxyz[2]++;
else
globalxyz[2]--;
}
if (!rsRandi (11 - dPathrand)) { /* Change directions */
if (!positive)
lastBorder += 10;
newBorder = transitions[lastBorder][rsRandi (6)];
positive = 0;
if (newBorder < 10)
positive = 1;
else
newBorder -= 10;
for (i = 0; i < 6; i++) /* set the new border point */
path[1][i] = bPnt[newBorder][i];
if (!positive) { /* flip everything if direction is
* negative */
if (newBorder < 6)
path[1][newBorder / 2] *= -1.0f;
else
for (i = 0; i < 3; i++)
path[1][i] *= -1.0f;
for (i = 3; i < 6; i++)
path[1][i] *= -1.0f;
}
for (i = 0; i < 3; i++) /* reposition the new border */
path[1][i] += globalxyz[i];
lastBorder = newBorder;
segments = 1;
} else { /* Just keep going straight */
newBorder = lastBorder;
for (i = 0; i < 6; i++)
path[1][i] = bPnt[newBorder][i];
i = newBorder / 2;
if (!positive) {
if (newBorder < 6)
path[1][i] *= -1.0f;
else {
path[1][0] *= -1.0f;
path[1][1] *= -1.0f;
path[1][2] *= -1.0f;
}
path[1][3] *= -1.0f;
path[1][4] *= -1.0f;
path[1][5] *= -1.0f;
}
for (j = 0; j < 3; j++) {
path[1][j] += globalxyz[j];
if ((newBorder < 6) && (j != 1))
path[1][j] += rsRandf (0.15f) - 0.075f;
}
if (newBorder >= 6)
path[1][0] += rsRandf (0.1f) - 0.05f;
segments = 1;
}
}
void initSaver(HWND hwnd){
RECT rect;
// Window initialization
hdc = GetDC(hwnd);
setBestPixelFormat(hdc);
hglrc = wglCreateContext(hdc);
GetClientRect(hwnd, &rect);
wglMakeCurrent(hdc, hglrc);
// setup viewport
//viewport[0] = rect.left;
//viewport[1] = rect.top;
//viewport[2] = rect.right - rect.left;
//viewport[3] = rect.bottom - rect.top;
// initialize extensions
if(!initExtensions())
dShaders = 0;
reshape(rect.right, rect.bottom);
#endif
//#ifdef RS_XSCREENSAVER
void initSaver(HyperspaceSaverSettings *inSettings){
//#endif
// Seed random number generator
srand((unsigned)time(NULL));
// Limit memory consumption because the Windows previewer is just too darn slow
/*if(doingPreview){
dResolution = 6;
if(dDepth > 3)
dDepth = 3;
};*/
// Set up some other inSettings defaults...
inSettings->camPos[0] = 0.0f;
inSettings->camPos[1] = 0.0f;
inSettings->camPos[2] = 0.0f;
inSettings->numAnimTexFrames = 20;
inSettings->whichTexture = 0;
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
initFlares(inSettings);
inSettings->thePath = new splinePath((inSettings->dDepth * 2) + 6);
if(inSettings->dUseTunnels)
inSettings->theTunnel = new tunnel(inSettings->thePath, 20);
// To avoid popping, depth, which will be used for fogging, is set to
// dDepth * goo grid size - size of one goo cubelet
inSettings->depth = float(inSettings->dDepth) * 2.0f - 2.0f / float(inSettings->dResolution);
if(inSettings->dUseGoo)
inSettings->theGoo = new goo(inSettings->dResolution, inSettings->depth);
inSettings->stars = new stretchedParticle*[inSettings->dStars];
for(int i=0; i<inSettings->dStars; i++){
inSettings->stars[i] = new stretchedParticle;
inSettings->stars[i]->radius = rsRandf(float(inSettings->dStarSize) * 0.0005f) + float(inSettings->dStarSize) * 0.0005f;
if(i % 10){ // usually bland stars
inSettings->stars[i]->color[0] = 0.8f + rsRandf(0.2f);
inSettings->stars[i]->color[1] = 0.8f + rsRandf(0.2f);
inSettings->stars[i]->color[2] = 0.8f + rsRandf(0.2f);
}
else{ // occasionally a colorful one
inSettings->stars[i]->color[0] = 0.3f + rsRandf(0.7f);
inSettings->stars[i]->color[1] = 0.3f + rsRandf(0.7f);
inSettings->stars[i]->color[2] = 0.3f + rsRandf(0.7f);
inSettings->stars[i]->color[rsRandi(3)] = 1.0f;
}
inSettings->stars[i]->color[rsRandi(3)] = 1.0f;
inSettings->stars[i]->pos[0] = rsRandf(2.0f * inSettings->depth) - inSettings->depth;
inSettings->stars[i]->pos[1] = rsRandf(4.0f) - 2.0f;
inSettings->stars[i]->pos[2] = rsRandf(2.0f * inSettings->depth) - inSettings->depth;
inSettings->stars[i]->fov = float(inSettings->dFov);
}
inSettings->sunStar = new stretchedParticle;
inSettings->sunStar->radius = float(inSettings->dStarSize) * 0.004f;
inSettings->sunStar->pos[0] = 0.0f;
inSettings->sunStar->pos[1] = 2.0f;
inSettings->sunStar->pos[2] = 0.0f;
inSettings->sunStar->fov = float(inSettings->dFov);
inSettings->theStarBurst = new starBurst;
for(int i=0; i<SB_NUM_STARS; i++)
inSettings->theStarBurst->stars[i]->radius = rsRandf(float(inSettings->dStarSize) * 0.001f) + float(inSettings->dStarSize) * 0.001f;
glGenTextures(1, &inSettings->nebulatex);
if(inSettings->dShaders){
initShaders();
inSettings->numAnimTexFrames = 20;
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, inSettings->nebulatex);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
gluBuild2DMipmaps(GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB, 3, NEBULAMAPSIZE, NEBULAMAPSIZE, GL_RGB, GL_UNSIGNED_BYTE, nebulamap);
gluBuild2DMipmaps(GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB, 3, NEBULAMAPSIZE, NEBULAMAPSIZE, GL_RGB, GL_UNSIGNED_BYTE, nebulamap);
gluBuild2DMipmaps(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB, 3, NEBULAMAPSIZE, NEBULAMAPSIZE, GL_RGB, GL_UNSIGNED_BYTE, nebulamap);
gluBuild2DMipmaps(GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB, 3, NEBULAMAPSIZE, NEBULAMAPSIZE, GL_RGB, GL_UNSIGNED_BYTE, nebulamap);
gluBuild2DMipmaps(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB, 3, NEBULAMAPSIZE, NEBULAMAPSIZE, GL_RGB, GL_UNSIGNED_BYTE, nebulamap);
gluBuild2DMipmaps(GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB, 3, NEBULAMAPSIZE, NEBULAMAPSIZE, GL_RGB, GL_UNSIGNED_BYTE, nebulamap);
}
else{
//unsigned char spheremap[NEBULAMAPSIZE][NEBULAMAPSIZE][3] = nebulamap;
inSettings->numAnimTexFrames = 60;
float x, y, temp;
const int halfsize(NEBULAMAPSIZE / 2);
for(int i=0; i<NEBULAMAPSIZE; ++i){
for(int j=0; j<NEBULAMAPSIZE; ++j){
x = float(i - halfsize) / float(halfsize);
y = float(j - halfsize) / float(halfsize);
temp = (x * x) + (y * y);
if(temp > 1.0f)
temp = 1.0f;
if(temp < 0.0f)
temp = 0.0f;
temp = temp * temp;
temp = temp * temp;
nebulamap[i][j][0] = GLubyte(float(nebulamap[i][j][0]) * temp);
nebulamap[i][j][1] = GLubyte(float(nebulamap[i][j][1]) * temp);
nebulamap[i][j][2] = GLubyte(float(nebulamap[i][j][2]) * temp);
}
}
glEnable(GL_NORMALIZE);
glBindTexture(GL_TEXTURE_2D, inSettings->nebulatex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
gluBuild2DMipmaps(GL_TEXTURE_2D, 3, NEBULAMAPSIZE, NEBULAMAPSIZE, GL_RGB, GL_UNSIGNED_BYTE, nebulamap);
}
glEnable(GL_FOG);
float fog_color[4] = {0.0f, 0.0f, 0.0f, 1.0f};
glFogfv(GL_FOG_COLOR, fog_color);
glFogf(GL_FOG_MODE, GL_LINEAR);
glFogf(GL_FOG_START, inSettings->depth * 0.7f);
glFogf(GL_FOG_END, inSettings->depth);
// Initialize text
inSettings->textwriter = new rsText;
//outfile.open("outfile");
inSettings->readyToDraw = 1;
}
void draw(HyperspaceSaverSettings *inSettings){
if(inSettings->first){
if(inSettings->dUseTunnels){ // only tunnels use caustic textures
glDisable(GL_FOG);
// Caustic textures can only be created after rendering context has been created
// because they have to be drawn and then read back from the framebuffer.
#ifdef WIN32
if(doingPreview) // super fast for Windows previewer
inSettings->theCausticTextures = new causticTextures(8, inSettings->numAnimTexFrames, 32, 32, 1.0f, 0.01f, 10.0f);
else // normal
#endif
inSettings->theCausticTextures = new causticTextures(8, inSettings->numAnimTexFrames, 100, 256, 1.0f, 0.01f, 20.0f);
glEnable(GL_FOG);
}
if(inSettings->dShaders){
#ifdef WIN32
if(doingPreview) // super fast for Windows previewer
inSettings->theWNCM = new wavyNormalCubeMaps(inSettings->numAnimTexFrames, 32);
else // normal
#endif
inSettings->theWNCM = new wavyNormalCubeMaps(inSettings->numAnimTexFrames, 128);
}
glViewport(inSettings->viewport[0], inSettings->viewport[1], inSettings->viewport[2], inSettings->viewport[3]);
inSettings->first = 0;
}
// Variables for printing text
static float computeTime = 0.0f;
static float drawTime = 0.0f;
//static rsTimer computeTimer, drawTimer;
// start compute time timer
//computeTimer.tick();
glMatrixMode(GL_MODELVIEW);
// Camera movements
static float camHeading[3] = {0.0f, 0.0f, 0.0f}; // current, target, and last
static int changeCamHeading = 1;
static float camHeadingChangeTime[2] = {20.0f, 0.0f}; // total, elapsed
static float camRoll[3] = {0.0f, 0.0f, 0.0f}; // current, target, and last
static int changeCamRoll = 1;
static float camRollChangeTime[2] = {1.0f, 0.0f}; // total, elapsed
camHeadingChangeTime[1] += inSettings->frameTime;
if(camHeadingChangeTime[1] >= camHeadingChangeTime[0]){ // Choose new direction
camHeadingChangeTime[0] = rsRandf(15.0f) + 5.0f;
camHeadingChangeTime[1] = 0.0f;
camHeading[2] = camHeading[1]; // last = target
if(changeCamHeading){
// face forward most of the time
if(rsRandi(6))
camHeading[1] = 0.0f;
// face backward the rest of the time
else if(rsRandi(2))
camHeading[1] = RS_PI;
else
camHeading[1] = -RS_PI;
changeCamHeading = 0;
}
else
changeCamHeading = 1;
}
float t = camHeadingChangeTime[1] / camHeadingChangeTime[0];
t = 0.5f * (1.0f - cosf(RS_PI * t));
camHeading[0] = camHeading[1] * t + camHeading[2] * (1.0f - t);
camRollChangeTime[1] += inSettings->frameTime;
if(camRollChangeTime[1] >= camRollChangeTime[0]){ // Choose new roll angle
camRollChangeTime[0] = rsRandf(5.0f) + 10.0f;
camRollChangeTime[1] = 0.0f;
camRoll[2] = camRoll[1]; // last = target
if(changeCamRoll){
camRoll[1] = rsRandf(RS_PIx2*2) - RS_PIx2;
changeCamRoll = 0;
}
else
changeCamRoll = 1;
}
t = camRollChangeTime[1] / camRollChangeTime[0];
t = 0.5f * (1.0f - cosf(RS_PI * t));
camRoll[0] = camRoll[1] * t + camRoll[2] * (1.0f - t);
static float pathDir[3] = {0.0f, 0.0f, -1.0f};
inSettings->thePath->moveAlongPath(float(inSettings->dSpeed) * inSettings->frameTime * 0.04f);
inSettings->thePath->update(inSettings->frameTime);
inSettings->thePath->getPoint(inSettings->dDepth + 2, inSettings->thePath->step, inSettings->camPos);
inSettings->thePath->getBaseDirection(inSettings->dDepth + 2, inSettings->thePath->step, pathDir);
float pathAngle = atan2f(-pathDir[0], -pathDir[2]);
glLoadIdentity();
glRotatef((pathAngle + camHeading[0]) * RS_RAD2DEG, 0, 1, 0);
glRotatef(camRoll[0] * RS_RAD2DEG, 0, 0, 1);
glGetFloatv(GL_MODELVIEW_MATRIX, inSettings->billboardMat);
glLoadIdentity();
glRotatef(-camRoll[0] * RS_RAD2DEG, 0, 0, 1);
glRotatef((-pathAngle - camHeading[0]) * RS_RAD2DEG, 0, 1, 0);
glTranslatef(inSettings->camPos[0]*-1, inSettings->camPos[1]*-1, inSettings->camPos[2]*-1);
glGetDoublev(GL_MODELVIEW_MATRIX, inSettings->modelMat);
inSettings->unroll = camRoll[0] * RS_RAD2DEG;
if(inSettings->dUseGoo){
// calculate diagonal fov
float diagFov = 0.5f * float(inSettings->dFov) / RS_RAD2DEG;
diagFov = tanf(diagFov);
diagFov = sqrtf(diagFov * diagFov + (diagFov * inSettings->aspectRatio * diagFov * inSettings->aspectRatio));
diagFov = 2.0f * atanf(diagFov);
inSettings->theGoo->update(inSettings->camPos[0], inSettings->camPos[2], pathAngle + camHeading[0], diagFov, inSettings);
}
// measure compute time
//computeTime += computeTimer.tick();
// start draw time timer
//drawTimer.tick();
// clear
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
// draw stars
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glActiveTextureARB(GL_TEXTURE2_ARB);
glBindTexture(GL_TEXTURE_2D, NULL);
glActiveTextureARB(GL_TEXTURE1_ARB);
glBindTexture(GL_TEXTURE_2D, NULL);
glActiveTextureARB(GL_TEXTURE0_ARB);
glBindTexture(GL_TEXTURE_2D, inSettings->flaretex[0]);
static float temppos[2];
for(int i=0; i<inSettings->dStars; i++){
temppos[0] = inSettings->stars[i]->pos[0] - inSettings->camPos[0];
temppos[1] = inSettings->stars[i]->pos[2] - inSettings->camPos[2];
if(temppos[0] > inSettings->depth){
inSettings->stars[i]->pos[0] -= inSettings->depth * 2.0f;
inSettings->stars[i]->lastPos[0] -= inSettings->depth * 2.0f;
}
if(temppos[0] < inSettings->depth*-1){
inSettings->stars[i]->pos[0] += inSettings->depth * 2.0f;
inSettings->stars[i]->lastPos[0] += inSettings->depth * 2.0f;
}
if(temppos[1] > inSettings->depth){
inSettings->stars[i]->pos[2] -= inSettings->depth * 2.0f;
inSettings->stars[i]->lastPos[2] -= inSettings->depth * 2.0f;
}
if(temppos[1] < inSettings->depth*-1){
inSettings->stars[i]->pos[2] += inSettings->depth * 2.0f;
inSettings->stars[i]->lastPos[2] += inSettings->depth * 2.0f;
}
inSettings->stars[i]->draw(inSettings->camPos, inSettings->unroll, inSettings->modelMat, inSettings->projMat, inSettings->viewport);
}
glDisable(GL_CULL_FACE);
// pick animated texture frame
static float textureTime = 0.0f;
textureTime += inSettings->frameTime;
// loop frames every 2 seconds
const float texFrameTime(2.0f / float(inSettings->numAnimTexFrames));
while(textureTime > texFrameTime){
textureTime -= texFrameTime;
inSettings->whichTexture ++;
}
while(inSettings->whichTexture >= inSettings->numAnimTexFrames)
inSettings->whichTexture -= inSettings->numAnimTexFrames;
// alpha component gets normalmap lerp value
const float lerp = textureTime / texFrameTime;
// draw goo
if(inSettings->dUseGoo){
// calculate color
static float goo_rgb_phase[3] = {-0.1f, -0.1f, -0.1f};
static float goo_rgb_speed[3] = {rsRandf(0.02f) + 0.02f, rsRandf(0.02f) + 0.02f, rsRandf(0.02f) + 0.02f};
float goo_rgb[4];
for(int i=0; i<3; i++){
goo_rgb_phase[i] += goo_rgb_speed[i] * inSettings->frameTime;
if(goo_rgb_phase[i] >= RS_PIx2)
goo_rgb_phase[i] -= RS_PIx2;
goo_rgb[i] = sinf(goo_rgb_phase[i]);
if(goo_rgb[i] < 0.0f)
goo_rgb[i] = 0.0f;
}
// setup textures
if(inSettings->dShaders){
goo_rgb[3] = lerp;
glDisable(GL_TEXTURE_2D);
glEnable(GL_TEXTURE_CUBE_MAP_ARB);
glActiveTextureARB(GL_TEXTURE2_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, inSettings->nebulatex);
glActiveTextureARB(GL_TEXTURE1_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, inSettings->theWNCM->texture[(inSettings->whichTexture + 1) % inSettings->numAnimTexFrames]);
glActiveTextureARB(GL_TEXTURE0_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, inSettings->theWNCM->texture[inSettings->whichTexture]);
glUseProgramObjectARB(gooProgram);
}
else{
goo_rgb[3] = 1.0f;
glBindTexture(GL_TEXTURE_2D, inSettings->nebulatex);
glEnable(GL_TEXTURE_2D);
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
glEnable(GL_TEXTURE_GEN_S);
glEnable(GL_TEXTURE_GEN_T);
}
// draw it
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glEnable(GL_BLEND);
glColor4fv(goo_rgb);
inSettings->theGoo->draw();
if(inSettings->dShaders){
glDisable(GL_TEXTURE_CUBE_MAP_ARB);
glUseProgramObjectARB(0);
}
else{
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
}
}
// update starburst
static float starBurstTime = 300.0f; // burst after 5 minutes
starBurstTime -= inSettings->frameTime;
if(starBurstTime <= 0.0f){
float pos[] = {inSettings->camPos[0] + (pathDir[0] * inSettings->depth * (0.5f + rsRandf(0.5f))),
rsRandf(2.0f) - 1.0f,
inSettings->camPos[2] + (pathDir[2] * inSettings->depth * (0.5f + rsRandf(0.5f)))};
inSettings->theStarBurst->restart(pos); // it won't actually restart unless it's ready to
starBurstTime = rsRandf(240.0f) + 60.0f; // burst again within 1-5 minutes
}
if(inSettings->dShaders)
inSettings->theStarBurst->draw(lerp, inSettings);
else
inSettings->theStarBurst->draw(inSettings);
// draw tunnel
if(inSettings->dUseTunnels){
inSettings->theTunnel->make(inSettings->frameTime, inSettings->dShaders);
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
glEnable(GL_TEXTURE_2D);
if(inSettings->dShaders){
glActiveTextureARB(GL_TEXTURE1_ARB);
glBindTexture(GL_TEXTURE_2D, inSettings->theCausticTextures->caustictex[(inSettings->whichTexture + 1) % inSettings->numAnimTexFrames]);
glActiveTextureARB(GL_TEXTURE0_ARB);
glBindTexture(GL_TEXTURE_2D, inSettings->theCausticTextures->caustictex[inSettings->whichTexture]);
glUseProgramObjectARB(tunnelProgram);
inSettings->theTunnel->draw(lerp);
glUseProgramObjectARB(0);
}
else{
glBindTexture(GL_TEXTURE_2D, inSettings->theCausticTextures->caustictex[inSettings->whichTexture]);
inSettings->theTunnel->draw();
}
glDisable(GL_CULL_FACE);
}
// draw sun with lens flare
glDisable(GL_FOG);
float flarepos[3] = {0.0f, 2.0f, 0.0f};
glBindTexture(GL_TEXTURE_2D, inSettings->flaretex[0]);
inSettings->sunStar->draw(inSettings->camPos, inSettings->unroll, inSettings->modelMat, inSettings->projMat, inSettings->viewport);
float diff[3] = {flarepos[0] - inSettings->camPos[0], flarepos[1] - inSettings->camPos[1], flarepos[2] - inSettings->camPos[2]};
float alpha = 0.5f - 0.005f * sqrtf(diff[0] * diff[0] + diff[1] * diff[1] + diff[2] * diff[2]);
if(alpha > 0.0f)
flare(flarepos, 1.0f, 1.0f, 1.0f, alpha, inSettings);
glEnable(GL_FOG);
// measure draw time
//drawTime += drawTimer.tick();
// write text
static float totalTime = 0.0f;
totalTime += inSettings->frameTime;
static std::vector<std::string> strvec;
static int frames = 0;
++frames;
if(frames == 60){
strvec.clear();
std::string str1 = " FPS = " + to_string(60.0f / totalTime);
strvec.push_back(str1);
std::string str2 = "compute time = " + to_string(computeTime / 60.0f);
strvec.push_back(str2);
std::string str3 = " draw time = " + to_string(drawTime / 60.0f);
strvec.push_back(str3);
totalTime = 0.0f;
computeTime = 0.0f;
drawTime = 0.0f;
frames = 0;
}
if(inSettings->kStatistics){
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0.0f, 50.0f * inSettings->aspectRatio, 0.0f, 50.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(1.0f, 48.0f, 0.0f);
glColor3f(1.0f, 0.6f, 0.0f);
inSettings->textwriter->draw(strvec);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
}
#ifdef WIN32
wglSwapLayerBuffers(hdc, WGL_SWAP_MAIN_PLANE);
#endif
#ifdef RS_XSCREENSAVER
glXSwapBuffers(xdisplay, xwindow);
#endif
}
void hack_draw (xstuff_t * XStuff, double currentTime, float frameTime)
{
int i;
static int ionsReleased = 0;
static float releaseTime = 0.0f;
Display *dpy = XStuff->display;
#ifdef BENCHMARK
static int a = 1;
#endif
Window window = XStuff->window;
elapsedTime = frameTime;
#ifdef BENCHMARK
if (a++ == 1000)
exit(0);
elapsedTime = 0.1f;
#endif
// Camera movements
// first do translation (distance from center)
static float oldCameraDistance;
static float cameraDistance;
static float targetCameraDistance = -1000.0f;
static float preCameraInterp = PI;
float cameraInterp;
preCameraInterp += float (dCameraspeed) * elapsedTime * 0.01f;
cameraInterp = 0.5f - (0.5f * cos (preCameraInterp));
cameraDistance = (1.0f - cameraInterp) * oldCameraDistance + cameraInterp * targetCameraDistance;
if (preCameraInterp >= PI) {
oldCameraDistance = targetCameraDistance;
targetCameraDistance = -rsRandf (1300.0f) - 200.0f;
preCameraInterp = 0.0f;
}
glMatrixMode (GL_MODELVIEW);
glLoadIdentity ();
glTranslatef (0.0, 0.0, cameraDistance);
// then do rotation
static rsVec radialVel = rsVec (0.0f, 0.0f, 0.0f);
static rsVec targetRadialVel = radialVel;
static rsQuat rotQuat = rsQuat (0.0f, 0.0f, 0.0f, 1.0f);
rsVec radialVelDiff = targetRadialVel - radialVel;
float changeRemaining = radialVelDiff.normalize ();
float change = float (dCameraspeed) * 0.0002f * elapsedTime;
if (changeRemaining > change) {
radialVelDiff *= change;
radialVel += radialVelDiff;
} else {
radialVel = targetRadialVel;
if (rsRandi (2)) {
targetRadialVel = rsVec (rsRandf (1.0f), rsRandf (1.0f), rsRandf (1.0f));
targetRadialVel.normalize ();
targetRadialVel *= float (dCameraspeed) * rsRandf (0.002f);
} else
targetRadialVel = rsVec (0.0f, 0.0f, 0.0f);
}
rsVec tempRadialVel = radialVel;
float angle = tempRadialVel.normalize ();
rsQuat radialQuat;
radialQuat.make (angle, tempRadialVel[0], tempRadialVel[1], tempRadialVel[2]);
rotQuat.preMult (radialQuat);
rsMatrix rotMat;
rotMat.fromQuat (rotQuat);
// make billboard matrix for rotating particles when they are drawn
rotMat.get (billboardMat);
// Calculate new color
static rsVec oldHsl, newHsl = rsVec (rsRandf (1.0f), 1.0f, 1.0f), targetHsl;
static float colorInterp = 1.0f, colorChange;
colorInterp += elapsedTime * colorChange;
if (colorInterp >= 1.0f) {
if (!rsRandi (3) && dIons >= 100) // change color suddenly
newHsl = rsVec (rsRandf (1.0f), 1.0f - (rsRandf (1.0f) * rsRandf (1.0f)), 1.0f);
oldHsl = newHsl;
targetHsl = rsVec (rsRandf (1.0f), 1.0f - (rsRandf (1.0f) * rsRandf (1.0f)), 1.0f);
colorInterp = 0.0f;
// amount by which to change colorInterp each second
colorChange = rsRandf (0.005f * float (dSpeed)) + (0.002f * float (dSpeed));
} else {
float diff = targetHsl[0] - oldHsl[0];
if (diff < -0.5f || (diff > 0.0f && diff < 0.5f))
newHsl[0] = oldHsl[0] + colorInterp * diff;
else
newHsl[0] = oldHsl[0] - colorInterp * diff;
diff = targetHsl[1] - oldHsl[1];
newHsl[1] = oldHsl[1] + colorInterp * diff;
if (newHsl[0] < 0.0f)
newHsl[0] += 1.0f;
if (newHsl[0] > 1.0f)
newHsl[0] -= 1.0f;
hsl2rgb (newHsl[0], newHsl[1], 1.0f, newRgb[0], newRgb[1], newRgb[2]);
}
// Release ions
if (ionsReleased < dIons) {
releaseTime -= elapsedTime;
while (ionsReleased < dIons && releaseTime <= 0.0f) {
ilist[ionsReleased].start ();
ionsReleased++;
// all ions released after 2 minutes
releaseTime += 120.0f / float (dIons);
}
}
// Set interpolation value for emitters and attracters
static float wait = 0.0f;
static float preinterp = PI, interp;
static float interpconst = 0.001f;
wait -= elapsedTime;
if (wait <= 0.0f) {
preinterp += elapsedTime * float (dSpeed) * interpconst;
interp = 0.5f - (0.5f * cos (preinterp));
}
if (preinterp >= PI) {
// select new taget points (not the same pattern twice in a row)
static int newTarget = 0, lastTarget;
lastTarget = newTarget;
newTarget = rsRandi (10);
if (newTarget == lastTarget)
newTarget++;
setTargets (newTarget);
preinterp = 0.0f;
interp = 0.0f;
wait = 10.0f; // pause after forming each new pattern
interpconst = 0.001f;
if (!rsRandi (4)) // interpolate really fast sometimes
interpconst = 0.1f;
}
// Update particles
for (i = 0; i < dEmitters; i++) {
elist[i].interppos (interp);
elist[i].update ();
}
for (i = 0; i < dAttracters; i++) {
alist[i].interppos (interp);
alist[i].update ();
}
for (i = 0; i < ionsReleased; i++)
ilist[i].update ();
// Calculate surface
if (dSurface) {
for (i = 0; i < dEmitters; i++)
spheres[i].setPosition (elist[i].pos[0], elist[i].pos[1], elist[i].pos[2]);
for (i = 0; i < dAttracters; i++)
spheres[dEmitters + i].setPosition (alist[i].pos[0], alist[i].pos[1], alist[i].pos[2]);
impCrawlPointVector cpv;
for(i=0; i<dEmitters+dAttracters; i++)
spheres[i].addCrawlPoint(cpv);
surface->reset ();
static float valuetrig = 0.0f;
valuetrig += elapsedTime;
volume->setSurfaceValue(0.45f + 0.05f * cosf(valuetrig));
volume->makeSurface(cpv);
}
// Draw
// clear the screen
if (dBlur) { // partially
glMatrixMode (GL_PROJECTION);
glPushMatrix ();
glLoadIdentity();
glOrtho(0.0, 1.0, 0.0, 1.0, 1.0, -1.0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4f(0.0f, 0.0f, 0.0f, 0.5f - (float(sqrtf(sqrtf(float(dBlur)))) * 0.15495f));
glBegin(GL_TRIANGLE_STRIP);
glVertex3f(0.0f, 0.0f, 0.0f);
glVertex3f(1.0f, 0.0f, 0.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
glVertex3f(1.0f, 1.0f, 0.0f);
glEnd();
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
} else // completely
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Draw ions
glMatrixMode(GL_MODELVIEW);
glBlendFunc (GL_ONE, GL_ONE);
glBindTexture (GL_TEXTURE_2D, 1);
for (i = 0; i < ionsReleased; i++)
ilist[i].draw ();
// Draw surfaces
float brightFactor = 0;
float surfaceColor[3] = {
0.0f,
0.0f,
0.0f
};
if (dSurface) {
glBindTexture (GL_TEXTURE_2D, 2);
glEnable (GL_TEXTURE_GEN_S);
glEnable (GL_TEXTURE_GEN_T);
// find color for surfaces
if (dIons >= 100) {
if (dWireframe)
brightFactor = 2.0f / (float (dBlur + 30) * float (dBlur + 30));
else
brightFactor = 4.0f / (float (dBlur + 30) * float (dBlur + 30));
for (i = 0; i < 100; i++) {
surfaceColor[0] += ilist[i].rgb[0] * brightFactor;
surfaceColor[1] += ilist[i].rgb[1] * brightFactor;
surfaceColor[2] += ilist[i].rgb[2] * brightFactor;
}
glColor3fv (surfaceColor);
} else {
if (dWireframe)
brightFactor = 200.0f / (float (dBlur + 30) * float (dBlur + 30));
else
brightFactor = 400.0f / (float (dBlur + 30) * float (dBlur + 30));
glColor3f (newRgb[0] * brightFactor, newRgb[1] * brightFactor, newRgb[2] * brightFactor);
}
// draw the surface
glPushMatrix ();
glMultMatrixf (billboardMat);
if (dWireframe) {
glDisable (GL_TEXTURE_2D);
surface->draw_wireframe ();
glEnable (GL_TEXTURE_2D);
} else
surface->draw ();
glPopMatrix ();
glDisable (GL_TEXTURE_GEN_S);
glDisable (GL_TEXTURE_GEN_T);
}
// If graphics card does a true buffer swap instead of a copy swap
// then everything must get drawn on both buffers
if (dBlur & pfd_swap_exchange) {
glXSwapBuffers (dpy, window);
// wglSwapLayerBuffers(hdc, WGL_SWAP_MAIN_PLANE);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4f (0.0f, 0.0f, 0.0f, 0.5f - (float (sqrt (sqrt (double (dBlur)))) * 0.15495f));
glPushMatrix ();
glLoadIdentity ();
glBegin (GL_TRIANGLE_STRIP);
glVertex3f (-5.0f, -4.0f, -3.0f);
glVertex3f (5.0f, -4.0f, -3.0f);
glVertex3f (-5.0f, 4.0f, -3.0f);
glVertex3f (5.0f, 4.0f, -3.0f);
glEnd ();
glPopMatrix ();
// Draw ions
glBlendFunc (GL_ONE, GL_ONE);
glBindTexture (GL_TEXTURE_2D, 1);
for (i = 0; i < ionsReleased; i++)
ilist[i].draw ();
// Draw surfaces
if (dSurface) {
glBindTexture (GL_TEXTURE_2D, 2);
glEnable (GL_TEXTURE_GEN_S);
glEnable (GL_TEXTURE_GEN_T);
if (dIons >= 100)
glColor3fv (surfaceColor);
else
glColor3f (newRgb[0] * brightFactor, newRgb[1] * brightFactor, newRgb[2] * brightFactor);
glPushMatrix ();
glMultMatrixf (billboardMat);
if (dWireframe) {
glDisable (GL_TEXTURE_2D);
surface->draw_wireframe ();
glEnable (GL_TEXTURE_2D);
} else
surface->draw ();
glPopMatrix ();
glDisable (GL_TEXTURE_GEN_S);
glDisable (GL_TEXTURE_GEN_T);
}
}
}
void setTargets (int whichTarget)
{
int i;
switch (whichTarget) {
case 0: // random
for (i = 0; i < dEmitters; i++)
elist[i].settargetpos (rsVec (rsVec (rsRandf (1000.0f) - 500.0f, rsRandf (1000.0f) - 500.0f, rsRandf (1000.0f) - 500.0f)));
for (i = 0; i < dAttracters; i++)
alist[i].settargetpos (rsVec (rsVec (rsRandf (1000.0f) - 500.0f, rsRandf (1000.0f) - 500.0f, rsRandf (1000.0f) - 500.0f)));
break;
case 1:
{ // line (all emitters on one side, all attracters on the other)
float position = -500.0f, change = 1000.0f / float (dEmitters + dAttracters - 1);
for (i = 0; i < dEmitters; i++) {
elist[i].settargetpos (rsVec (rsVec (position, position * 0.5f, 0.0f)));
position += change;
}
for (i = 0; i < dAttracters; i++) {
alist[i].settargetpos (rsVec (rsVec (position, position * 0.5f, 0.0f)));
position += change;
}
break;
}
case 2:
{ // line (emitters and attracters staggered)
float change;
if (dEmitters > dAttracters) {
change = 1000.0f / float (dEmitters * 2 - 1);
} else {
change = 1000.0f / float (dAttracters * 2 - 1);
}
float position = -500.0f;
for (i = 0; i < dEmitters; i++) {
elist[i].settargetpos (rsVec (rsVec (position, position * 0.5f, 0.0f)));
position += change * 2.0f;
}
position = -500.0f + change;
for (i = 0; i < dAttracters; i++) {
alist[i].settargetpos (rsVec (rsVec (position, position * 0.5f, 0.0f)));
position += change * 2.0f;
}
break;
}
case 3:
{ // 2 lines (parallel)
float change = 1000.0f / float (dEmitters * 2 - 1);
float position = -500.0f;
float height = -525.0f + float (dEmitters * 25);
for (i = 0; i < dEmitters; i++) {
elist[i].settargetpos (rsVec (rsVec (position, height, -50.0f)));
position += change * 2.0f;
}
change = 1000.0f / float (dAttracters * 2 - 1);
position = -500.0f;
height = 525.0f - float (dAttracters * 25);
for (i = 0; i < dAttracters; i++) {
alist[i].settargetpos (rsVec (rsVec (position, height, 50.0f)));
position += change * 2.0f;
}
break;
}
case 4:
{ // 2 lines (skewed)
float change = 1000.0f / float (dEmitters * 2 - 1);
float position = -500.0f;
float height = -525.0f + float (dEmitters * 25);
for (i = 0; i < dEmitters; i++) {
elist[i].settargetpos (rsVec (rsVec (position, height, 0.0f)));
position += change * 2.0f;
}
change = 1000.0f / float (dAttracters * 2 - 1);
position = -500.0f;
height = 525.0f - float (dAttracters * 25);
for (i = 0; i < dAttracters; i++) {
alist[i].settargetpos (rsVec (rsVec (10.0f, height, position)));
position += change * 2.0f;
}
break;
}
case 5: // random distribution across a plane
for (i = 0; i < dEmitters; i++)
elist[i].settargetpos (rsVec (rsVec (rsRandf (1000.0f) - 500.0f, 0.0f, rsRandf (1000.0f) - 500.0f)));
for (i = 0; i < dAttracters; i++)
alist[i].settargetpos (rsVec (rsVec (rsRandf (1000.0f) - 500.0f, 0.0f, rsRandf (1000.0f) - 500.0f)));
break;
case 6:
{ // random distribution across 2 planes
float height = -525.0f + float (dEmitters * 25);
for (i = 0; i < dEmitters; i++)
elist[i].settargetpos (rsVec (rsVec (rsRandf (1000.0f) - 500.0f, height, rsRandf (1000.0f) - 500.0f)));
height = 525.0f - float (dAttracters * 25);
for (i = 0; i < dAttracters; i++)
alist[i].settargetpos (rsVec (rsVec (rsRandf (1000.0f) - 500.0f, height, rsRandf (1000.0f) - 500.0f)));
break;
}
case 7:
{ // 2 rings (1 inside and 1 outside)
float angle = 0.5f, cosangle, sinangle;
float change = PIx2 / float (dEmitters);
for (i = 0; i < dEmitters; i++) {
angle += change;
cosangle = cos (angle) * 200.0f;
sinangle = sin (angle) * 200.0f;
elist[i].settargetpos (rsVec (rsVec (cosangle, sinangle, 0.0f)));
}
angle = 1.5f;
change = PIx2 / float (dAttracters);
for (i = 0; i < dAttracters; i++) {
angle += change;
cosangle = cos (angle) * 500.0f;
sinangle = sin (angle) * 500.0f;
alist[i].settargetpos (rsVec (rsVec (cosangle, sinangle, 0.0f)));
}
break;
}
case 8:
{ // ring (all emitters on one side, all attracters on the other)
float angle = 0.5f, cosangle, sinangle;
float change = PIx2 / float (dEmitters + dAttracters);
for (i = 0; i < dEmitters; i++) {
angle += change;
cosangle = cos (angle) * 500.0f;
sinangle = sin (angle) * 500.0f;
elist[i].settargetpos (rsVec (rsVec (cosangle, sinangle, 0.0f)));
}
for (i = 0; i < dAttracters; i++) {
angle += change;
cosangle = cos (angle) * 500.0f;
sinangle = sin (angle) * 500.0f;
alist[i].settargetpos (rsVec (rsVec (cosangle, sinangle, 0.0f)));
}
break;
}
case 9:
{ // ring (emitters and attracters staggered)
float change;
if (dEmitters > dAttracters) {
change = PIx2 / float (dEmitters * 2);
} else {
change = PIx2 / float (dAttracters * 2);
}
float angle = 0.5f, cosangle, sinangle;
for (i = 0; i < dEmitters; i++) {
cosangle = cos (angle) * 500.0f;
sinangle = sin (angle) * 500.0f;
elist[i].settargetpos (rsVec (rsVec (cosangle, sinangle, 0.0f)));
angle += change * 2.0f;
}
angle = 0.5f + change;
for (i = 0; i < dAttracters; i++) {
cosangle = cos (angle) * 500.0f;
sinangle = sin (angle) * 500.0f;
alist[i].settargetpos (rsVec (rsVec (cosangle, sinangle, 0.0f)));
angle += change * 2.0f;
}
break;
}
case 10: // 2 points
for (i = 0; i < dEmitters; i++)
elist[i].settargetpos (rsVec (rsVec (500.0f, 100.0f, 50.0f)));
for (i = 0; i < dAttracters; i++)
alist[i].settargetpos (rsVec (rsVec (-500.0f, -100.0f, -50.0f)));
break;
}
}
attracter::attracter ()
{
pos = rsVec (rsRandf (1000.0f) - 500.0f, rsRandf (1000.0f) - 500.0f, rsRandf (1000.0f) - 500.0f);
}
void SceneManager::FrameMove()
{
//更新时间
static int index = 0;
if(m_Stop)return;//暂停动画
frameTime = m_Timer.tick();
//更新粒子系统
// Slows fireworks, but not camera
if(kSlowMotion) frameTime *= 0.5f;
if(m_Fps!=0)
{
frameTime = 1/(float)m_Fps;
}
//更新照像机
m_Camera.Update(m_ParticleSystem.particles,frameTime,m_ParticleSystem.last_particle);
m_ParticleSystem.AllocNewParticle();//增加新粒子空间
//是否暂停动画
if(!kFireworks) return; //如果暂停动画返回
//更新世界
theWorld.update(frameTime);
//减淡
static float ambientlight = float(dAmbient) * 0.01f;
for(unsigned int i=0; i<m_ParticleSystem.last_particle; ++i)
{
Particle* darkener(&(m_ParticleSystem.particles[i]));
if(darkener->type == SMOKE) darkener->rgb[0] = darkener->rgb[1] = darkener->rgb[2] = ambientlight;
}
//改变火箭发射速率
static float rocketTimer[6] = {0,0,0,0,0,0};
static float rocketTimeConst[6] = {5.0f,25,40,35,50,55};
static float changeRocketTimeConst[6] ={25,50,65,65,50,50};
for(int i=0;i<6;i++)
{
changeRocketTimeConst[i] -= frameTime;
if(changeRocketTimeConst[i] <= 0.0f)
{
float temp = rsRandf(4.0f);
//rocketTimeConst[i] = (temp * temp) + (10.0f / float(dMaxrockets));
changeRocketTimeConst[i] = rsRandf(30.0f) + 10.0f;
}
rocketTimer[i] -= frameTime;
}
//发射火箭
if(rocketTimer[0] <= 0.0f)//生存期结束
{
Particle* rock = m_ParticleSystem.AddParticle();//火箭粒子
//初始化火箭 //确定火箭类型
rock->xyz[0] = rsRandf(20.0f);// - 900.0f;
rock->xyz[1] = 5.0f;
rock->xyz[2] = rsRandf(20.0f);// - 900.0f;
rock->initRocket();
int y =rsRandi(8);
if(index==2)
{
rock->explosiontype =6;
}
else if(index==5)
{
rock->explosiontype =6;
}
else if(index==8)
{
rock->explosiontype =6;
}
else
{
rock->m_Fire = &m_CFire[index];
m_CFire[index].m_Exploded = false;//未爆炸
m_CFire[index].m_Boom = false;
rock->explosiontype =22;
}
index++;
index = index%11;
if(dMaxrockets) rocketTimer[0] = rocketTimeConst[0];//火箭时间
else rocketTimer[0] = 60.0f; // arbitrary number since no rockets ever fire
}
/*if(rocketTimer[1] <= 0.0f)//生存期结束
{
Particle* rock = m_ParticleSystem.AddParticle();//火箭粒子
//初始化火箭 //确定火箭类型
rock->xyz[0] = rsRandf(200.0f);// + 800.0f;
rock->xyz[1] = 5.0f;
rock->xyz[2] = rsRandf(200.0f);// + 500.0f;
rock->initRocket();
if(rsRandi(2))
rock->m_Fire = &m_CFire[1];
else rock->m_Fire = &m_CFire[5];
rock->explosiontype = 22;
if(dMaxrockets) rocketTimer[1] = rsRandf(rocketTimeConst[1]);//火箭时间
else rocketTimer[1] = 60.0f; // arbitrary number since no rockets ever fire
}
if(rocketTimer[2] <= 0.0f)//生存期结束
{
Particle* rock = m_ParticleSystem.AddParticle();//火箭粒子
//初始化火箭 //确定火箭类型
rock->xyz[0] = rsRandf(200.0f) + 700.0f;
rock->xyz[1] = 5.0f;
rock->xyz[2] = rsRandf(200.0f) - 500.0f;
rock->initRocket();
if(rsRandi(2))
rock->m_Fire = &m_CFire[2];
else rock->m_Fire = &m_CFire[6];
rock->explosiontype = 22;
if(dMaxrockets) rocketTimer[2] = rsRandf(rocketTimeConst[2]);//火箭时间
else rocketTimer[2] = 60.0f; // arbitrary number since no rockets ever fire
}
if(rocketTimer[3] <= 0.0f)//生存期结束
{
Particle* rock = m_ParticleSystem.AddParticle();//火箭粒子
//初始化火箭 //确定火箭类型
rock->xyz[0] = rsRandf(200.0f) - 500.0f;
rock->xyz[1] = 5.0f;
rock->xyz[2] = rsRandf(200.0f) + 700.0f;
rock->initRocket();
if(rsRandi(2))
rock->m_Fire = &m_CFire[3];
else rock->m_Fire = &m_CFire[7];
rock->explosiontype = 22;
if(dMaxrockets) rocketTimer[3] = rsRandf(rocketTimeConst[3]);//火箭时间
else rocketTimer[3] = 60.0f; // arbitrary number since no rockets ever fire
}
if(rocketTimer[4] <= 0.0f)//生存期结束
{
Particle* rock = m_ParticleSystem.AddParticle();//火箭粒子
//初始化火箭 //确定火箭类型
rock->xyz[0] = rsRandf(200.0f) - 1000.0f;
rock->xyz[1] = 5.0f;
rock->xyz[2] = rsRandf(200.0f) + 500.0f;
rock->initRocket();
rock->explosiontype = 3;
if(dMaxrockets) rocketTimer[4] = rsRandf(rocketTimeConst[4]);//火箭时间
else rocketTimer[4] = 60.0f; // arbitrary number since no rockets ever fire
}
if(rocketTimer[5] <= 0.0f)//生存期结束
{
Particle* rock = m_ParticleSystem.AddParticle();//火箭粒子
//初始化火箭 //确定火箭类型
rock->xyz[0] = rsRandf(200.0f) - 1300.0f;
rock->xyz[1] = 5.0f;
rock->xyz[2] = rsRandf(200.0f) + 500.0f;
rock->initRocket();
rock->explosiontype = 4;
if(dMaxrockets) rocketTimer[5] = rsRandf(rocketTimeConst[5]);//火箭时间
else rocketTimer[5] = 60.0f; // arbitrary number since no rockets ever fire
}
*/
//更新粒子
numRockets = 0;
for(unsigned int i=0; i<m_ParticleSystem.last_particle; i++)
{
Particle* curpart(&(m_ParticleSystem.particles[i]));
m_ParticleSystem.particles[i].update(frameTime,dSmoke,dClouds,dWind,dAmbient,dIllumination,&theWorld);
if(curpart->type == ROCKET) numRockets++;
// curpart->findDepth(m_Camera.cameraPos,billboardMat);
if(curpart->type==IGNITOR&&curpart->life <0.93)
{
if(!curpart->m_Fire->m_Exploded)//未爆炸
{
if(IsRecord())
{
m_PlayTime.push_back(m_Frame*m_f);//记录时间
m_PlayStyle.push_back(BOOM1SOUND );//记录类型
m_PlayPos.push_back(m_Camera.cameraPos);
m_PlaySource.push_back(curpart->xyz);
soundengine->insertSoundNode(BOOM1SOUND , curpart->xyz, m_Camera.cameraPos);
m_PlayTime.push_back(m_Frame*m_f);//记录时间
m_PlayStyle.push_back(SUCKSOUND);//记录类型
m_PlayPos.push_back(m_Camera.cameraPos);
m_PlaySource.push_back(curpart->xyz);
soundengine->insertSoundNode(SUCKSOUND, curpart->xyz,m_Camera.cameraPos);
}
else
{
//播放声音
soundengine->insertSoundNode(BOOM1SOUND, curpart->xyz, m_Camera.cameraPos);
soundengine->insertSoundNode(SUCKSOUND , curpart->xyz, m_Camera.cameraPos);
}
curpart->m_Fire->m_Exploded = true;
}
}
if(curpart->m_Fire!=NULL&&curpart->type==ROCKET&&curpart->life <0.43)
{
if(!curpart->m_Fire->m_Boom)//未爆炸
{
if(IsRecord())
{
m_PlayTime.push_back(m_Frame*m_f);//记录时间
m_PlayStyle.push_back(BOOM1SOUND );//记录类型
m_PlayPos.push_back(m_Camera.cameraPos);
m_PlaySource.push_back(curpart->xyz);
soundengine->insertSoundNode(BOOM1SOUND , curpart->xyz, m_Camera.cameraPos);
}
else
{
//播放声音
soundengine->insertSoundNode(BOOM1SOUND, curpart->xyz, m_Camera.cameraPos);
}
curpart->m_Fire->m_Boom = true;
}
}
//点燃烟花
if(curpart->life <= 0.0f || curpart->xyz[1] < 0.0f)
{
switch(curpart->type)
{
case ROCKET:
if(curpart->xyz[1] <= 0.0f)
{
// move above ground for explosion so new particles aren't removed
curpart->xyz[1] = 0.1f;
curpart->vel[1] *= -0.7f;
}
if(curpart->explosiontype == 18)
curpart->initSpinner();
else
{
curpart->initExplosion();
}
break;
case IGNITOR:
curpart->m_Fire->m_Ignitor++;
if(curpart->m_Fire->m_Ignitor==8)
{
curpart->m_Fire->m_Ignitor = 0;
curpart->explosiontype = 0;
curpart->initExplosion();
curpart->explosiontype = 21;
curpart->initExplosion();
}
else
{
curpart->explosiontype = 0;
curpart->initExplosion();
}
break;
case POPPER:
switch(curpart->explosiontype)
{
case 21:
curpart->initExplosion();
break;
case STAR:
curpart->explosiontype = 100;
curpart->initExplosion();
break;
case STREAMER:
curpart->explosiontype = 101;
curpart->initExplosion();
break;
case METEOR:
curpart->explosiontype = 102;
curpart->initExplosion();
break;
case POPPER:
curpart->type = STAR;
curpart->rgb.set(1.0f, 0.8f, 0.6f);
curpart->t = m_ParticleSystem.particles[i].tr = m_ParticleSystem.particles[i].life = 0.2f;
}
break;
case SUCKER:
curpart->initShockwave();
break;
case STRETCHER:
curpart->initBigmama();
}
}
}
m_ParticleSystem.DeallocParticle();//删除粒子
}
void setMaterialAttribs(){
if(dTexture == 0 || dTexture >= 5)
glColor3f(rsRandf(1.0f), rsRandf(1.0f), rsRandf(1.0f));
if(dTexture == 1)
glBindTexture(GL_TEXTURE_2D, texture_id[rsRandi(2)]);
}
void drawWorld ()
{
int i, j;
static float moonRotation = rsRandf (360.0f);
static float moonHeight = rsRandf (40.0f) + 20.0f;
glMatrixMode (GL_MODELVIEW);;
glDisable (GL_DEPTH_TEST);
// draw stars
if (dStardensity) {
glDisable (GL_BLEND);
glCallList (starlist);
}
// draw moon
if (dMoon) {
glPushMatrix ();
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glRotatef (moonRotation, 0, 1, 0);
glRotatef (moonHeight, 1, 0, 0);
glTranslatef (0.0f, 0.0f, -20000.0f);
glCallList (moonlist);
glPopMatrix ();
}
// draw clouds
if (dClouds) {
glPushMatrix ();
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBindTexture (GL_TEXTURE_2D, cloudtex);
glTranslatef (0.0f, 0.0f, 0.0f);
for (j = 0; j < CLOUDMESH; j++) {
glBegin (GL_TRIANGLE_STRIP);
for (i = 0; i <= CLOUDMESH; i++) {
glColor3f (clouds[i][j + 1][6], clouds[i][j + 1][7], clouds[i][j + 1][8]);
glTexCoord2f (clouds[i][j + 1][3], clouds[i][j + 1][4]);
glVertex3fv (clouds[i][j + 1]);
glColor3f (clouds[i][j][6], clouds[i][j][7], clouds[i][j][8]);
glTexCoord2f (clouds[i][j][3], clouds[i][j][4]);
glVertex3fv (clouds[i][j]);
}
glEnd ();
}
glPopMatrix ();
}
// draw sunset
if (doSunset) {
glEnable (GL_BLEND);
glBlendFunc (GL_ONE, GL_ONE);
glCallList (sunsetlist);
}
// draw moon's halo
if (dMoonglow && dMoon) {
glPushMatrix ();
float glow = float (dMoonglow) * 0.005f; // half of max possible value
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE);
glRotatef (moonRotation, 0, 1, 0);
glRotatef (moonHeight, 1, 0, 0);
glTranslatef (0.0f, 0.0f, -20000.0f);
glColor4f (1.0f, 1.0f, 1.0f, glow);
glCallList (moonglowlist); // halo
glScalef (6000.0f, 6000.0f, 6000.0f);
glColor4f (1.0f, 1.0f, 1.0f, glow * 0.7f);
glCallList (flarelist[0]); // spot
glPopMatrix ();
}
// draw earth
if (dEarth) {
glPushMatrix ();
glDisable (GL_BLEND);
glBindTexture (GL_TEXTURE_2D, earthneartex);
glCallList (earthnearlist);
glBindTexture (GL_TEXTURE_2D, earthfartex);
glCallList (earthfarlist);
if (dAmbient <= 30) {
glEnable (GL_BLEND);
glBlendFunc (GL_ONE, GL_ONE);
glBindTexture (GL_TEXTURE_2D, earthlighttex);
glCallList (earthlist);
}
glPopMatrix ();
}
}
void draw ()
{
int i, j, k;
int indexx, indexy, indexz;
float xyz[4], dir[4], angvel[4], tempVec[4];
static float oldxyz[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
static float oldDir[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
static float oldAngvel[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
float angle, distance;
float rotMat[16];
float newQuat[4] = { 0.0f, 0.0f, 0.0f, 1.0f };
static float quat[4] = { 0.0f, 0.0f, 0.0f, 1.0f };
static int flymode = 1;
static float flymodeChange = 20.0f;
static int seg = 0; /* Section of path */
static float where = 0.0f; /* Position on path */
static float rollVel = 0.0f, rollAcc = 0.0f;
int drawDepth = dDrawdepth + 2;
static float rollChange = 0; /* rsRandf (10.0f) + 2.0f; */
where += (float)dSpeed * 0.05f * elapsedTime;
if (where >= 1.0f) {
where -= 1.0f;
seg++;
}
if (seg >= segments) {
seg = 0;
reconfigure ();
}
/*
* Calculate position
*/
xyz[0] = interpolate (path[seg][0], path[seg][3], path[seg + 1][0], path[seg + 1][3], where);
xyz[1] = interpolate (path[seg][1], path[seg][4], path[seg + 1][1], path[seg + 1][4], where);
xyz[2] = interpolate (path[seg][2], path[seg][5], path[seg + 1][2], path[seg + 1][5], where);
/*
* Do rotation stuff
*/
rsVec_subtract (xyz, oldxyz, (float *)&dir);
rsVec_normalize ((float *)&dir);
rsVec_cross ((float *)&angvel, dir, oldDir); /* Desired axis of rotation */
/* Protect against mild "overflow" */
float dot = MAX(MIN(rsVec_dot (oldDir, dir), -1.0), 1.0);
float maxSpin = 0.25f * (float)dSpeed * elapsedTime;
angle = MAX(MIN(acos(dot), -maxSpin), maxSpin);
rsVec_scale ((float *)&angvel, angle); /* Desired angular velocity */
rsVec_subtract (angvel, oldAngvel, (float *)&tempVec); /* Change in angular velocity */
distance = rsVec_length (tempVec); /* Don't let angular velocity change too much */
float rotationInertia = 0.007f * (float)dSpeed * elapsedTime;
if (distance > rotationInertia * elapsedTime) {
rsVec_scale ((float *)&tempVec, ((rotationInertia * elapsedTime) / distance));
rsVec_add (oldAngvel, tempVec, (float *)&angvel);
}
flymodeChange -= elapsedTime;
if (flymodeChange <= 1.0f) /* prepare to transition */
rsVec_scale ((float *)&angvel, flymodeChange);
if (flymodeChange <= 0.0f) { /* transition from one fly mode to
* the other? */
flymode = rsRandi (4);
flymodeChange = rsRandf ((float)(150 - dSpeed)) + 5.0f;
}
rsVec_copy (angvel, (float *)&tempVec); /* Recompute desired rotation */
angle = rsVec_normalize ((float *)&tempVec);
rsQuat_make ((float *)&newQuat, angle, tempVec[0], tempVec[1], tempVec[2]); /* Use rotation */
if (flymode) /* fly normal (straight) */
rsQuat_preMult ((float *)&quat, newQuat);
else /* don't fly normal (go backwards and stuff) */
rsQuat_postMult ((float *)&quat, newQuat);
/* Roll */
rollChange -= elapsedTime;
if (rollChange <= 0.0f) {
rollAcc = rsRandf (0.02f * (float)dSpeed) - (0.01f * (float)dSpeed);
rollChange = rsRandf (10.0f) + 2.0f;
}
rollVel += rollAcc * elapsedTime;
if (rollVel > (0.04f * (float)dSpeed) && rollAcc > 0.0f)
rollAcc = 0.0f;
if (rollVel < (-0.04f * (float)dSpeed) && rollAcc < 0.0f)
rollAcc = 0.0f;
rsQuat_make ((float *)&newQuat, rollVel * elapsedTime, oldDir[0], oldDir[1], oldDir[2]);
rsQuat_preMult ((float *)&quat, newQuat);
/* quat.normalize(); */
rsQuat_toMat ((float *)&quat, (float *)&rotMat);
/*
* Save old stuff
*/
rsVec_copy (xyz, (float *)&oldxyz);
oldDir[0] = -rotMat[2];
oldDir[1] = -rotMat[6];
oldDir[2] = -rotMat[10];
rsVec_copy (angvel, (float *)&oldAngvel);
/*
* Apply transformations
*/
glMatrixMode (GL_MODELVIEW);
glLoadMatrixf (rotMat);
glTranslatef (-xyz[0], -xyz[1], -xyz[2]);
// Just in case display lists contain no colors
glColor3f(1.0f, 1.0f, 1.0f);
// Environment mapping for crystal, chrome, brass, shiny, and ghostly
if(dTexture == 2 || dTexture == 3 || dTexture == 4 || dTexture == 5 || dTexture == 6){
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
glEnable(GL_TEXTURE_GEN_S);
glEnable(GL_TEXTURE_GEN_T);
}
/*
* Render everything
*/
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
for (i = globalxyz[0] - drawDepth; i <= globalxyz[0] + drawDepth; i++) {
for (j = globalxyz[1] - drawDepth; j <= globalxyz[1] + drawDepth; j++) {
for (k = globalxyz[2] - drawDepth; k <= globalxyz[2] + drawDepth; k++) {
float tpos[4]; /* transformed position */
tempVec[0] = (float)i - xyz[0];
tempVec[1] = (float)j - xyz[1];
tempVec[2] = (float)k - xyz[2];
tpos[0] = tempVec[0] * rotMat[0] + tempVec[1] * rotMat[4] + tempVec[2] * rotMat[8]; /* + rotMat[12]; */
tpos[1] = tempVec[0] * rotMat[1] + tempVec[1] * rotMat[5] + tempVec[2] * rotMat[9]; /* + rotMat[13]; */
tpos[2] = tempVec[0] * rotMat[2] + tempVec[1] * rotMat[6] + tempVec[2] * rotMat[10]; /* + rotMat[14]; */
#define radius 0.9f
/* camera_inViewVolume */
/*
* check back plane
*/
if (!(tpos[2] < -(theCamera.farplane + radius))) {
/*
* check bottom plane
*/
if (!(rsVec_dot(tpos, theCamera.cullVec[0]) < -radius)) {
/*
* check top plane
*/
if (!(rsVec_dot(tpos, theCamera.cullVec[1]) < -radius)) {
/*
* check left plane
*/
if (!(rsVec_dot(tpos, theCamera.cullVec[2]) < -radius)) {
/*
* check right plane
*/
if (!(rsVec_dot(tpos, theCamera.cullVec[3]) < -radius)) {
indexx = myMod (i);
indexy = myMod (j);
indexz = myMod (k);
/*
* draw it
*/
glPushMatrix ();
glTranslatef ((float)i, (float)j, (float)k);
glCallList (lattice[indexx][indexy][indexz]);
glPopMatrix ();
}
}
}
}
}
}
}
}
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
glFlush ();
}
bool ConstrainedFire::GenerateParticle(Particle * & particle)
{
bool control = false;
int k =m_K;
int objectIndex; //当前欲定位的模型顶点索引
//选取形状受控的粒子（为模型顶点分配粒子）
if(m_MatchNum[currentEmitter]<(int)m_Quadrant[currentEmitter].size())
{
//设当前粒子为受控粒子
control = true;
objectIndex = m_Quadrant[currentEmitter][m_MatchNum[currentEmitter]];
m_MatchNum[currentEmitter]++;
}
else
currentEmitter++;
if(currentEmitter==m_K)currentEmitter=0;
//设置当前发射器
if(!control)
{
// if(currentEmitter==SEC_EMITTER) currentEmitter=0;
return false;//非约束粒子
}
//设置约束粒子属性
if(control)
particle = m_ParticleSystem->AddParticle();
particle->controlled = true;
//粒子生命值
particle->t = particle->tr = 1.2f +rsRandf(0.6)*0.5;
particle->life = 1.0f;
particle->type = SHAPE;
//爆炸位置
particle->xyz[0] = expEmitter[currentEmitter].explodePos.X();
particle->xyz[1] = expEmitter[currentEmitter].explodePos.Y();
particle->xyz[2] = expEmitter[currentEmitter].explodePos.Z();
//爆炸物理属性
particle->force = expEmitter[currentEmitter].force;//作用力(重力)
particle->k = expEmitter[currentEmitter].k;//空气阻力
///对于x和z方向，为匀速运动，s=vt。
//对于y方向，加速度是重力加速度g, s=v0*t+1/2*gt^2
//基于物理，为新添加的形状受控粒子计算常量C
float speed,explodespeed;
float d; //XY平面上的角度，0-360
float fi; //与Z的夹角，0-180
float ts;
float sx,sy,sz;
float rt,t2;
rt=1.0/particle->t; //粒子生命值的倒数
t2=particle->t*particle->t; //生命值的平方
float T = particle->t;
float T0 = particle->t - particle->t*rsRandf(0.2)*0.5;//成形时间
float ktp1=particle->k*T+1.0;
float w = (pow(T,ktp1) - pow(T - T0, ktp1));
sx = m_Vertices[objectIndex].position.X()+m_Center.X()-particle->xyz[0];
sy = m_Vertices[objectIndex].position.Y()+m_Center.Y()-particle->xyz[1]-20;
sz = m_Vertices[objectIndex].position.Z()+m_Center.Z()-particle->xyz[2];
particle->C.X()=sx*ktp1/w;
particle->C.Y()=(sy- particle->force.Y()*(2*T-T0)*T/(2*(ktp1-2.0))) * (ktp1/w);
particle->C.Z()=sz*ktp1/w;
//为新添加的形状受控粒子计算速度的初始值
particle->vel[0] = particle->C.X();
particle->vel[1] = particle->force.Y()*T/(particle->k*T-1.0)+particle->C.Y()*pow(T,particle->k*T);
particle->vel[2] = particle->C.Z();
return true;
}