// The start of the Application
int App::start(const std::vector<std::string> &args)
{
clan::DisplayWindowDescription win_desc;
win_desc.set_allow_resize(true);
win_desc.set_title("Perlin Noise Example");
win_desc.set_size(clan::Size( 800, 520 ), false);
clan::DisplayWindow window(win_desc);
clan::SlotContainer cc;
cc.connect(window.sig_window_close(), clan::bind_member(this, &App::on_window_close));
cc.connect(window.get_ic().get_keyboard().sig_key_up(), clan::bind_member(this, &App::on_input_up));
std::string theme;
if (clan::FileHelp::file_exists("../../../Resources/GUIThemeAero/theme.css"))
theme = "../../../Resources/GUIThemeAero";
else if (clan::FileHelp::file_exists("../../../Resources/GUIThemeBasic/theme.css"))
theme = "../../../Resources/GUIThemeBasic";
else
throw clan::Exception("No themes found");
clan::Canvas canvas(window);
clan::GUIWindowManagerTexture wm(window);
clan::GUIManager gui(wm, theme);
// Deleted automatically by the GUI
Options *options = new Options(gui, canvas.get_size());
clan::Image image_grid(canvas, "../../Display_Render/Blend/Resources/grid.png");
image_grid.set_color(clan::Colorf(0.4f, 0.4f, 1.0f, 1.0f));
clan::PerlinNoise noise;
clan::Image noise_image;
clan::TextureFormat last_sized_format = clan::tf_rgb8;
float last_amplitude = 0.0f;
int last_width = 0;
int last_height = 0;
int last_octaves = 0 ;
float last_start_x = 0.0f;
float last_length_x = 0.0f;
float last_start_y = 0.0f;
float last_length_y = 0.0f;
float last_position_z = 0.0f;
float last_position_w = 0.0f;
PerlinDimension last_dimension = perlin_2d;
bool last_is_normals_set = false;
while (!quit)
{
wm.process();
wm.draw_windows(canvas);
bool changed_flag = false;
if (last_dimension != options->dimension)
{
changed_flag = true;
last_dimension = options->dimension;
}
if (last_is_normals_set != options->is_normals_set)
{
changed_flag = true;
last_is_normals_set = options->is_normals_set;
}
if (last_sized_format != options->sized_format)
{
changed_flag = true;
last_sized_format = options->sized_format;
noise.set_format(last_sized_format);
}
if (last_amplitude != options->amplitude)
{
changed_flag = true;
last_amplitude = options->amplitude;
noise.set_amplitude(last_amplitude);
}
if (last_width != options->width)
{
changed_flag = true;
last_width = options->width;
noise.set_size(last_width, last_height);
}
if (last_height != options->height)
{
changed_flag = true;
last_height = options->height;
noise.set_size(last_width, last_height);
}
if (last_octaves != options->octaves)
{
changed_flag = true;
last_octaves = options->octaves;
noise.set_octaves(last_octaves);
}
if (last_start_x != options->start_x)
{
changed_flag = true;
last_start_x = options->start_x;
}
if (last_length_x != options->length_x)
{
changed_flag = true;
last_length_x = options->length_x;
}
if (last_start_y != options->start_y)
{
changed_flag = true;
last_start_y = options->start_y;
}
if (last_length_y != options->length_y)
{
changed_flag = true;
last_length_y = options->length_y;
}
if (last_position_z != options->position_z)
{
changed_flag = true;
last_position_z = options->position_z;
}
if (last_position_w != options->position_w)
{
changed_flag = true;
last_position_w = options->position_w;
}
if (changed_flag)
{
clan::PixelBuffer pbuff;
switch (last_dimension)
{
case perlin_1d:
pbuff = noise.create_noise1d(last_start_x, last_start_x + last_length_x);
break;
case perlin_2d:
pbuff = noise.create_noise2d(last_start_x, last_start_x + last_length_x, last_start_y, last_start_y + last_length_y);
break;
case perlin_3d:
pbuff = noise.create_noise3d(last_start_x, last_start_x + last_length_x, last_start_y, last_start_y + last_length_y, last_position_z);
break;
case perlin_4d:
default:
pbuff = noise.create_noise4d(last_start_x, last_start_x + last_length_x, last_start_y, last_start_y + last_length_y, last_position_z, last_position_w);
break;
}
if (last_is_normals_set)
pbuff = convert_to_normalmap(pbuff);
pbuff = pbuff.to_format(clan::tf_rgba8); // Required for clanD3D
noise_image = clan::Image(canvas, pbuff, pbuff.get_size());
}
image_grid.draw(canvas, 32, 32);
noise_image.draw(canvas, 33, 33);
window.flip(1);
clan::KeepAlive::process();
}
return 0;
}
bool App::update()
{
options->set_needs_render();
options->set_viewport(canvas.get_size());
options->set_background_color(clan::Colorf(0.6f, 0.6f, 0.2f, 1.0f));
options->update();
if (last_dimension != options->dimension)
{
changed_flag = true;
last_dimension = options->dimension;
}
if (last_is_normals_set != options->is_normals_set)
{
changed_flag = true;
last_is_normals_set = options->is_normals_set;
}
if (last_sized_format != options->sized_format)
{
changed_flag = true;
last_sized_format = options->sized_format;
noise.set_format(last_sized_format);
}
if (last_amplitude != options->amplitude)
{
changed_flag = true;
last_amplitude = options->amplitude;
noise.set_amplitude(last_amplitude);
}
if (last_width != options->width)
{
changed_flag = true;
last_width = options->width;
noise.set_size(last_width, last_height);
}
if (last_height != options->height)
{
changed_flag = true;
last_height = options->height;
noise.set_size(last_width, last_height);
}
if (last_octaves != options->octaves)
{
changed_flag = true;
last_octaves = options->octaves;
noise.set_octaves(last_octaves);
}
if (last_start_x != options->start_x)
{
changed_flag = true;
last_start_x = options->start_x;
}
if (last_length_x != options->length_x)
{
changed_flag = true;
last_length_x = options->length_x;
}
if (last_start_y != options->start_y)
{
changed_flag = true;
last_start_y = options->start_y;
}
if (last_length_y != options->length_y)
{
changed_flag = true;
last_length_y = options->length_y;
}
if (last_position_z != options->position_z)
{
changed_flag = true;
last_position_z = options->position_z;
}
if (last_position_w != options->position_w)
{
changed_flag = true;
last_position_w = options->position_w;
}
if (changed_flag)
{
changed_flag = false;
clan::PixelBuffer pbuff;
switch (last_dimension)
{
case perlin_1d:
pbuff = noise.create_noise1d(last_start_x, last_start_x + last_length_x);
break;
case perlin_2d:
pbuff = noise.create_noise2d(last_start_x, last_start_x + last_length_x, last_start_y, last_start_y + last_length_y);
break;
case perlin_3d:
pbuff = noise.create_noise3d(last_start_x, last_start_x + last_length_x, last_start_y, last_start_y + last_length_y, last_position_z);
break;
case perlin_4d:
default:
pbuff = noise.create_noise4d(last_start_x, last_start_x + last_length_x, last_start_y, last_start_y + last_length_y, last_position_z, last_position_w);
break;
}
if (last_is_normals_set)
pbuff = convert_to_normalmap(pbuff);
pbuff = pbuff.to_format(clan::tf_rgba8); // Required for clanD3D
noise_image = clan::Image(canvas, pbuff, pbuff.get_size());
}
image_grid.draw(canvas, 32, 32);
noise_image.draw(canvas, 33, 33);
window.flip(1);
return !quit;
}
