void DMDFrame::marqueeScrollY(int scrollBy) {
scrollBy = scrollBy % height;
if(scrollBy < 0) { // Scroll up
DMDFrame frame = subFrame(0, 0, width, -scrollBy); // save topmost
movePixels(0, -scrollBy, 0, 0, width, height+scrollBy); // move
copyFrame(frame, 0, height+scrollBy); // drop back at bottom edge
} else { // Scroll down
DMDFrame frame = subFrame(0, height-scrollBy, width, scrollBy); // save bottommost
movePixels(0, 0, 0, scrollBy, width, height-scrollBy); // move
copyFrame(frame, 0, 0); // drop back at top edge
}
}
void DMDFrame::scrollY(int scrollBy) {
if(abs(scrollBy) >= height) { // scrolling over the whole display
// scrolling will erase everything
drawFilledBox(0, 0, width-1, height-1, GRAPHICS_OFF);
}
else if(scrollBy < 0) { // Scroll up
movePixels(0, -scrollBy, 0, 0, width, height + scrollBy);
drawFilledBox(0, height+scrollBy, width, height, GRAPHICS_OFF);
}
else if(scrollBy > 0) { // Scroll down
movePixels(0, 0, 0, scrollBy, width, height - scrollBy);
drawFilledBox(0, 0, width, scrollBy, GRAPHICS_OFF);
}
}
void DMDFrame::scrollX(int scrollBy) {
if(abs(scrollBy) >= width) { // scrolling over the whole display!
// scrolling will erase everything
drawFilledBox(0, 0, width-1, height-1, GRAPHICS_OFF);
}
else if(scrollBy < 0) { // Scroll left
movePixels(-scrollBy, 0, 0, 0, width + scrollBy, height);
drawFilledBox(width+scrollBy, 0, width, height, GRAPHICS_OFF);
}
else { // Scroll right
movePixels(0, 0, scrollBy, 0, width - scrollBy, height);
drawFilledBox(0, 0, scrollBy, height, GRAPHICS_OFF);
}
}
void DMDFrame::marqueeScrollX(int scrollBy) {
// Scrolling is basically the same as normal scrolling, but we save/restore the overlapping
// area in between to create the marquee effect
scrollBy = scrollBy % width;
if(scrollBy < 0) { // Scroll left
DMDFrame frame = subFrame(0, 0, -scrollBy, height); // save leftmost
movePixels(-scrollBy, 0, 0, 0, width + scrollBy, height); // move
copyFrame(frame, width+scrollBy, 0); // drop back at right edge
} else { // Scroll right
DMDFrame frame = subFrame(width-scrollBy, 0, scrollBy, height); // save rightmost
movePixels(0, 0, scrollBy, 0, width - scrollBy, height); // move
copyFrame(frame, 0, 0); // drop back at left edge
}
}
void ac::ParticleEmiter::draw_flash(cv::Mat &frame) {
speed = 10;
static int flash_index = 0;
static cv::Vec3b black(0,0,0);
cv::Vec3b color(rand()%255, rand()%255, rand()%255);
movePixels();//move values before drawing
for(int z = 0; z < h; ++z) {
for(int i = 0; i < w; ++i) {
int x_pos = part[i][z].x;
int y_pos = part[i][z].y;
if(x_pos > 0 && x_pos < frame.cols && y_pos > 0 && y_pos < frame.rows) {
cv::Vec3b &pixel = frame.at<cv::Vec3b>(y_pos, x_pos);
switch(flash_index) {
case 0:
pixel = part[i][z].pixel;
break;
case 1:
pixel = black;
break;
case 2:
pixel = color;
break;
}
++flash_index;
if(flash_index > 2)
flash_index = 0;
}
}
}
}
// draw pixel values to frame
void ac::ParticleEmiter::draw(cv::Mat &frame) {
speed = 1;
movePixels();//move values before drawing
for(int z = 0; z < h; ++z) {
for(int i = 0; i < w; ++i) {
int x_pos = part[i][z].x;
int y_pos = part[i][z].y;
if(x_pos > 0 && x_pos < frame.cols && y_pos > 0 && y_pos < frame.rows) {
cv::Vec3b &pixel = frame.at<cv::Vec3b>(y_pos, x_pos);
pixel = part[i][z].pixel;
}
}
}
}
void ac::ParticleEmiter::draw_op(cv::Mat &frame) {
speed = 1;
movePixels();
for(int z = 0; z < h; ++z) {
for(int i = 0; i < w; ++i) {
int x_pos = part[i][z].x;
int y_pos = part[i][z].y;
if(x_pos > 0 && x_pos < frame.cols && y_pos > 0 && y_pos < frame.rows) {
cv::Vec3b &pixel = frame.at<cv::Vec3b>(y_pos, x_pos);
for(int j = 0; j < 3; ++j)
pixel[j] = part[i][z].pixel[j]^pixel[j];
}
}
}
}
// draw movement fast
void ac::ParticleEmiter::draw_move(cv::Mat &frame) {
speed = 50;
movePixels();//move values before drawing
static double alpha = 1.0, alpha_max = 6.0;
for(int z = 0; z < h; ++z) {
for(int i = 0; i < w; ++i) {
int x_pos = part[i][z].x;
int y_pos = part[i][z].y;
if(x_pos > 0 && x_pos < frame.cols && y_pos > 0 && y_pos < frame.rows) {
cv::Vec3b &pixel = frame.at<cv::Vec3b>(y_pos, x_pos);
pixel = part[i][z].pixel;
}
}
}
static int dir = 1;
procPos(dir, alpha, alpha_max);
}
void ac::ParticleEmiter::draw_alpha(cv::Mat &frame) {
speed = 20;
movePixels();//move values before drawing
static double alpha = 1.0, alpha_max = 10;
for(int z = 0; z < h; ++z) {
for(int i = 0; i < w; ++i) {
int x_pos = part[i][z].x;
int y_pos = part[i][z].y;
if(x_pos > 0 && x_pos < frame.cols && y_pos > 0 && y_pos < frame.rows) {
cv::Vec3b &pixel = frame.at<cv::Vec3b>(y_pos, x_pos);
for(int j = 0; j < 3; ++j)
pixel[j] += part[i][z].pixel[j]*static_cast<unsigned char>(alpha);
}
}
}
static int dir = 1;
procPos(dir, alpha, alpha_max, 15, 0.01);
}
