void noise3D::do_efx2D(double pos)
{
int x, y, ip, pixel, ofs;
// int ip2, s;
float p;
float step, step_x, step_y, fx, fy;
step=(float)(pos*2.0);
step_x=(float)(1.0/80.0);
step_y=(float)(1.0/60.0);
ofs=0;
fy=0;
for (y=0; y<image->height; y++)
{
fx=step;
for (x=0; x<image->width; x++)
{
p=Perlin(fx, fy, step, 0.45f, 6);
// s=(int)(128.0*sinf(6.28f*x/image->width))+128;
ip=myfist(p+SHINESS);
if (ip<0) ip=0;
if (ip>255) ip=255;
// s=s+ip;
// if (s>255) s=255;
pixel=palette[ip];
// image->uint32ptr[ofs++]=pixel;
image->uint32ptr[ofs++]=ip | (ip<<8) | (ip<<16);
fx+=step_x;
}
fy+=step_y;
}
}
void PerlinNoise::operator()(SDL_Surface * s)
{
SDL_FillRect(s, NULL, 0);
int r = rand() % 256;
int g = rand() % 256;
int b = rand() % 256;
for(int x=0; x<s->w; x++)
for(int y=0; y<s->h; y++)
{
float t = Perlin( (int)x, (int)y );
int value = 128 + 128*t;
clamp(0, value, 255);
//std::cout << value << std::endl;
Color c;
c.r = r;
c.g = g;
c.b = b;
c.a = value;
set_pixel(s, x, y, c);
}
}
SeaFloor :: SeaFloor(){
vec2 loc = vec2(0,0);
for(float i = 1.0f; i >= 0.05f; i*=0.86f){
rows.push_back( new GameObject(loc, i));
paths.push_back( *new vector<vec2>() );
}
reverse( rows.begin(), rows.end() );
perlin = Perlin(2); //create new perlin noise generator
}
SeaSurface :: SeaSurface(){
vec2 loc = vec2(0,-7000);
for(float i = 2.0f; i >= 0.05f; i*=0.82f){
rows.push_back( new GameObject(loc, i));
paths.push_back( *new vector<vec2>() );
}
reverse( rows.begin(), rows.end() );
perlin = Perlin(2); //create new perlin noise generator
counter = 0; //initialise sinewave counter
}
LSystem::LSystem( Vec2f _loc ) {
mPerlin = Perlin();
mLoc = _loc;
mSteps = 0;
mSomeStep = 0.1f;
mXOff = 0.01f;
mAxiom = "F";
mRule = "|[+F]|[-F]F";
mStartLength = 0.2f;
mTheta = 90.0f;
mInitNum = 3;
mProduction = mAxiom;
mDrawLength = mStartLength;
mGenerations = 0;
simulate ( mInitNum );
updateList();
}
void LSystem::updateList() {
mPerlin = Perlin( 8, Rand::randInt( 0, 100000 ) );
mSteps = mProduction.length();
if( mSteps > mProduction.length() ) {
mSteps = mProduction.length();
}
gl::pushModelView();
gl::translate( mLoc );
gl::pushModelView();
int countFood = 0;
for( int i = 0; i < mSteps; i++ ) {
char step = mProduction.at(i);
if( step == 'F' || step == '|' ) {
Vec2f current_loc = (gl::getModelView() * Vec4f( 0.0f, 0.0f, 0.0f, 1.0f )).xy();
current_loc -= mStartLength;
current_loc += mLoc;
boost::shared_ptr<Food> add_food( new Food( current_loc, ColorA( ColorA::black() ) ) );
mFood.push_back( add_food );
if( countFood > 0 ) {
boost::weak_ptr<Food> weakFood(add_food);
mFood[countFood-1]->setNext( weakFood );
}
countFood++;
gl::translate( 0, -mDrawLength + mPerlin.fBm( app::getElapsedFrames()*1.0f, i, 0.001f )*20000.0f );
}
else if( step == '+' ) {
gl::rotate( mTheta + mPerlin.fBm( app::getElapsedFrames()*1.0f, i, 0.001f )*(2000.0f * i/30.0f));
}
else if( step == '-' ) {
gl::rotate( -1*(mTheta + mPerlin.fBm( app::getElapsedFrames()*1.0f, i, 0.001f )*(2000.0f * i/30.0f)));
}
else if( step == '[' ) {
gl::pushModelView();
}
else if( step == ']' ) {
gl::popModelView();
}
}
gl::popModelView();
gl::popModelView();
}
void noise2D::do_efx2D(double pos)
{
int x, y, ip, pixel;
float p;
float step, step_x, step_y, fx, fy;
/*
_asm
{
push eax
fstcw word ptr [cwrd]
mov [cwrd], ax
or ah, 0Ch
mov ax, [cwrd]
fldcw word ptr [cwrd]
pop eax
}
*/
step=(float)(pos*2.0);
step_x=(float)(1.0/80.0);
step_y=(float)(1.0/60.0);
fy=0;
for (y=0; y<image->height; y++)
{
fx=step;
for (x=0; x<image->width; x++)
{
p=Perlin(fx, fy, 0.45f, 6);
ip=myfist(p+SHINESS);
if (ip<0) ip=0;
if (ip>255) ip=255;
pixel=ip | (ip<<8) | (ip<<16);
image->uint32ptr[image->muly[y]+x]=pixel;
fx+=step_x;
}
fy+=step_y;
}
return;
}
SphereModule::SphereModule(int dataSize, gl::GlslProg sphereShader)
{
dataSiz = dataSize;
shader = sphereShader;
perl = Perlin(3);
}
Oscillator::Oscillator(){
mPerlin = Perlin(OSCILLATOR_PERLIN_NUM_OCTAVES, OSCILLATOR_PERLIN_SEED);
}
