PoolColorArray ColorPicker::get_presets() const {
PoolColorArray arr;
arr.resize(presets.size());
for (int i = 0; i < presets.size(); i++) {
arr.set(i, presets[i]);
}
return arr;
}
PoolColorArray mono_array_to_PoolColorArray(MonoArray *p_array) {
PoolColorArray ret;
int length = mono_array_length(p_array);
for (int i = 0; i < length; i++) {
real_t *raw_elem = (real_t *)mono_array_addr_with_size(p_array, sizeof(real_t) * 4, i);
MARSHALLED_IN(Color, raw_elem, elem);
ret.push_back(elem);
}
return ret;
}
void CPUParticles2DEditorPlugin::_generate_emission_mask() {
Ref<Image> img;
img.instance();
Error err = ImageLoader::load_image(source_emission_file, img);
ERR_EXPLAIN(TTR("Error loading image:") + " " + source_emission_file);
ERR_FAIL_COND(err != OK);
if (img->is_compressed()) {
img->decompress();
}
img->convert(Image::FORMAT_RGBA8);
ERR_FAIL_COND(img->get_format() != Image::FORMAT_RGBA8);
Size2i s = Size2(img->get_width(), img->get_height());
ERR_FAIL_COND(s.width == 0 || s.height == 0);
Vector<Point2> valid_positions;
Vector<Point2> valid_normals;
Vector<uint8_t> valid_colors;
valid_positions.resize(s.width * s.height);
EmissionMode emode = (EmissionMode)emission_mask_mode->get_selected();
if (emode == EMISSION_MODE_BORDER_DIRECTED) {
valid_normals.resize(s.width * s.height);
}
bool capture_colors = emission_colors->is_pressed();
if (capture_colors) {
valid_colors.resize(s.width * s.height * 4);
}
int vpc = 0;
{
PoolVector<uint8_t> data = img->get_data();
PoolVector<uint8_t>::Read r = data.read();
for (int i = 0; i < s.width; i++) {
for (int j = 0; j < s.height; j++) {
uint8_t a = r[(j * s.width + i) * 4 + 3];
if (a > 128) {
if (emode == EMISSION_MODE_SOLID) {
if (capture_colors) {
valid_colors.write[vpc * 4 + 0] = r[(j * s.width + i) * 4 + 0];
valid_colors.write[vpc * 4 + 1] = r[(j * s.width + i) * 4 + 1];
valid_colors.write[vpc * 4 + 2] = r[(j * s.width + i) * 4 + 2];
valid_colors.write[vpc * 4 + 3] = r[(j * s.width + i) * 4 + 3];
}
valid_positions.write[vpc++] = Point2(i, j);
} else {
bool on_border = false;
for (int x = i - 1; x <= i + 1; x++) {
for (int y = j - 1; y <= j + 1; y++) {
if (x < 0 || y < 0 || x >= s.width || y >= s.height || r[(y * s.width + x) * 4 + 3] <= 128) {
on_border = true;
break;
}
}
if (on_border)
break;
}
if (on_border) {
valid_positions.write[vpc] = Point2(i, j);
if (emode == EMISSION_MODE_BORDER_DIRECTED) {
Vector2 normal;
for (int x = i - 2; x <= i + 2; x++) {
for (int y = j - 2; y <= j + 2; y++) {
if (x == i && y == j)
continue;
if (x < 0 || y < 0 || x >= s.width || y >= s.height || r[(y * s.width + x) * 4 + 3] <= 128) {
normal += Vector2(x - i, y - j).normalized();
}
}
}
normal.normalize();
valid_normals.write[vpc] = normal;
}
if (capture_colors) {
valid_colors.write[vpc * 4 + 0] = r[(j * s.width + i) * 4 + 0];
valid_colors.write[vpc * 4 + 1] = r[(j * s.width + i) * 4 + 1];
valid_colors.write[vpc * 4 + 2] = r[(j * s.width + i) * 4 + 2];
valid_colors.write[vpc * 4 + 3] = r[(j * s.width + i) * 4 + 3];
}
vpc++;
}
}
}
}
}
}
valid_positions.resize(vpc);
if (valid_normals.size()) {
valid_normals.resize(vpc);
}
ERR_EXPLAIN(TTR("No pixels with transparency > 128 in image..."));
ERR_FAIL_COND(valid_positions.size() == 0);
if (capture_colors) {
PoolColorArray pca;
pca.resize(vpc);
PoolColorArray::Write pcaw = pca.write();
for (int i = 0; i < vpc; i += 1) {
Color color;
color.r = valid_colors[i * 4 + 0] / 255.0f;
color.g = valid_colors[i * 4 + 1] / 255.0f;
color.b = valid_colors[i * 4 + 2] / 255.0f;
color.a = valid_colors[i * 4 + 3] / 255.0f;
pcaw[i] = color;
}
particles->set_emission_colors(pca);
}
if (valid_normals.size()) {
particles->set_emission_shape(CPUParticles2D::EMISSION_SHAPE_DIRECTED_POINTS);
PoolVector2Array norms;
norms.resize(valid_normals.size());
PoolVector2Array::Write normsw = norms.write();
for (int i = 0; i < valid_normals.size(); i += 1) {
normsw[i] = valid_normals[i];
}
particles->set_emission_normals(norms);
} else {
particles->set_emission_shape(CPUParticles2D::EMISSION_SHAPE_POINTS);
}
{
PoolVector2Array points;
points.resize(valid_positions.size());
PoolVector2Array::Write pointsw = points.write();
for (int i = 0; i < valid_positions.size(); i += 1) {
pointsw[i] = valid_positions[i];
}
particles->set_emission_points(points);
}
}
