Draw terrains within their relevant positions on the hex grid #22
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@ -18,7 +18,7 @@ use gtk::{
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gdk_pixbuf::Pixbuf, gio, prelude::*, subclass::prelude::*, Application, CompositeTemplate,
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DrawingArea, Label,
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};
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use image::io::Reader as ImageReader;
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use image::{io::Reader as ImageReader, DynamicImage};
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use std::{cell::RefCell, io::Cursor, rc::Rc};
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const APP_ID: &'static str = "com.luminescent-dreams.hex-grid";
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@ -27,7 +27,7 @@ const MAP_RADIUS: usize = 3;
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const DRAWING_ORIGIN: (f64, f64) = (1024. / 2., 768. / 2.);
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#[derive(Clone, Debug)]
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enum Tile {
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enum Terrain {
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Empty,
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Mountain,
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Grasslands,
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@ -38,28 +38,13 @@ enum Tile {
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Swamp,
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}
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impl Tile {
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fn color(&self) -> (f64, f64, f64) {
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match self {
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Self::Empty => (0., 0., 0.),
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Self::Mountain => (0.5, 0.5, 0.5),
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Self::Grasslands => (0., 1., 0.),
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Self::ShallowWater => (0.5, 0.5, 1.),
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Self::DeepWater => (0., 0., 1.),
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Self::Badlands => (0.5, 0.25, 0.),
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Self::Desert => (1., 1., 0.),
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Self::Swamp => (0., 0.25, 0.),
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}
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}
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}
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impl Default for Tile {
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impl Default for Terrain {
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fn default() -> Self {
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Self::Empty
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}
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}
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impl From<&str> for Tile {
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impl From<&str> for Terrain {
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fn from(s: &str) -> Self {
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match s {
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"m" => Self::Mountain,
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@ -74,12 +59,43 @@ impl From<&str> for Tile {
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}
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}
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impl From<String> for Tile {
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impl From<String> for Terrain {
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fn from(s: String) -> Self {
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Self::from(s.as_ref())
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}
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}
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struct Tile {
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terrain: Terrain,
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image: Pixbuf,
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}
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impl Tile {
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fn new(source: &DynamicImage, terrain: Terrain) -> Tile {
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let image = match terrain {
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Terrain::DeepWater => pixbuf_from_image_tile(source.clone().crop(0, 0, 100, 88)),
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Terrain::ShallowWater => pixbuf_from_image_tile(source.clone().crop(100, 0, 100, 88)),
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Terrain::Grasslands => pixbuf_from_image_tile(source.clone().crop(200, 0, 100, 88)),
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Terrain::Desert => pixbuf_from_image_tile(source.clone().crop(300, 0, 100, 88)),
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Terrain::Mountain => pixbuf_from_image_tile(source.clone().crop(0, 88, 100, 88)),
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Terrain::Badlands => pixbuf_from_image_tile(source.clone().crop(100, 88, 100, 88)),
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Terrain::Swamp => pixbuf_from_image_tile(source.clone().crop(0, 176, 100, 88)),
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Terrain::Empty => pixbuf_from_image_tile(source.clone().crop(300, 176, 100, 88)),
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};
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Tile { terrain, image }
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}
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fn render_on_context(&self, context: &Context, translate_x: f64, translate_y: f64) {
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context.save().unwrap();
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context.append_path(&hexagon_path(context, translate_x, translate_y, 100., 88.));
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context.clip();
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context.set_source_pixbuf(&self.image, translate_x, translate_y);
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context.paint().expect("paint should succeed");
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context.restore().unwrap();
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}
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}
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fn main() {
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gio::resources_register_include!("com.luminescent-dreams.hex-grid.gresource")
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.expect("Failed to register resources");
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@ -133,7 +149,7 @@ impl ObjectImpl for HexGridWindowPrivate {
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.expect("map should be in the bundle")
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.to_vec();
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let hex_map = parse_data::<Tile>(String::from_utf8(map_text_resource).unwrap().lines());
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let hex_map = parse_data::<Terrain>(String::from_utf8(map_text_resource).unwrap().lines());
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let terrain_data = resources_lookup_data(
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"/com/luminescent-dreams/hex-grid/terrain.ppm",
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@ -143,27 +159,15 @@ impl ObjectImpl for HexGridWindowPrivate {
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let reader = ImageReader::new(Cursor::new(terrain_data))
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.with_guessed_format()
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.unwrap();
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let image = reader.decode().unwrap();
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let image_deep_water = pixbuf_from_image_tile(image.clone().crop(0, 0, 100, 88));
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let image_shallow_water = pixbuf_from_image_tile(image.clone().crop(100, 0, 100, 88));
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let image_grasslands = pixbuf_from_image_tile(image.clone().crop(200, 0, 100, 88));
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let image_desert = pixbuf_from_image_tile(image.clone().crop(300, 0, 100, 88));
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let image_mountain = pixbuf_from_image_tile(image.clone().crop(0, 88, 100, 88));
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let image_badlands = pixbuf_from_image_tile(image.clone().crop(100, 88, 100, 88));
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let image_swamp = pixbuf_from_image_tile(image.clone().crop(0, 176, 100, 88));
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/*
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let image_pb = Pixbuf::from_bytes(
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&glib::Bytes::from(image.as_bytes()),
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gtk::gdk_pixbuf::Colorspace::Rgb,
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false,
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8,
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image.width() as i32,
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image.height() as i32,
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image.to_rgb8().sample_layout().height_stride as i32,
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);
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*/
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let deep_water = Tile::new(&image, Terrain::DeepWater);
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let shallow_water = Tile::new(&image, Terrain::ShallowWater);
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let grasslands = Tile::new(&image, Terrain::Grasslands);
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let desert = Tile::new(&image, Terrain::Desert);
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let mountain = Tile::new(&image, Terrain::Mountain);
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let badlands = Tile::new(&image, Terrain::Badlands);
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let swamp = Tile::new(&image, Terrain::Swamp);
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let motion_controller = gtk::EventControllerMotion::new();
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{
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@ -197,30 +201,16 @@ impl ObjectImpl for HexGridWindowPrivate {
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context.set_line_width(2.);
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let clip_path = hexagon_path(context, 100., 88.);
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context.set_source_pixbuf(&image_deep_water, 0., 0.);
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context.append_path(&clip_path);
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context.clip();
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context.paint().expect("paint should succeed");
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context.set_source_pixbuf(&image_shallow_water, 150., 0.);
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context.paint().expect("paint should succeed");
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context.set_source_pixbuf(&image_grasslands, 300., 0.);
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context.paint().expect("paint should succeed");
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context.set_source_pixbuf(&image_desert, 450., 0.);
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context.paint().expect("paint should succeed");
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context.set_source_pixbuf(&image_mountain, 0., 100.);
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context.paint().expect("paint should succeed");
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context.set_source_pixbuf(&image_badlands, 150., 100.);
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context.paint().expect("paint should succeed");
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context.set_source_pixbuf(&image_swamp, 0., 200.);
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context.paint().expect("paint should succeed");
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/*
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deep_water.render_on_context(&context, 0., 0.);
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shallow_water.render_on_context(&context, 150., 0.);
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grasslands.render_on_context(&context, 300., 0.);
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desert.render_on_context(&context, 450., 0.);
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mountain.render_on_context(&context, 0., 100.);
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badlands.render_on_context(&context, 150., 100.);
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swamp.render_on_context(&context, 0., 200.);
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*/
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for coordinate in vec![AxialAddr::origin()]
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.into_iter()
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.chain(AxialAddr::origin().addresses(MAP_RADIUS))
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@ -231,15 +221,22 @@ impl ObjectImpl for HexGridWindowPrivate {
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+ HEX_RADIUS
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* ((3. as f64).sqrt() / 2. * (coordinate.q() as f64)
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+ (3. as f64).sqrt() * (coordinate.r() as f64));
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let translate_x = center_x - HEX_RADIUS;
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let translate_y = center_y - (3. as f64).sqrt() * HEX_RADIUS / 2.;
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let tile = hex_map.get(&coordinate).unwrap();
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let color = tile.color();
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context.set_source_rgb(color.0, color.1, color.2);
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draw_hexagon(context, center_x, center_y, HEX_RADIUS);
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let _ = context.fill();
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let tile = match hex_map.get(&coordinate).unwrap() {
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Terrain::Mountain => &mountain,
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Terrain::Grasslands => &grasslands,
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Terrain::ShallowWater => &shallow_water,
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Terrain::DeepWater => &deep_water,
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Terrain::Badlands => &badlands,
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Terrain::Desert => &desert,
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Terrain::Swamp => &swamp,
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_ => panic!("unhandled terrain type"),
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};
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tile.render_on_context(context, translate_x, translate_y);
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// draw_hexagon(context, center_x, center_y, HEX_RADIUS);
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}
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*/
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});
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}
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self.drawing_area.add_controller(&motion_controller);
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@ -275,15 +272,21 @@ fn draw_hexagon(context: &Context, center_x: f64, center_y: f64, radius: f64) {
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context.close_path();
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}
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fn hexagon_path(context: &Context, width: f64, height: f64) -> Path {
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fn hexagon_path(
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context: &Context,
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translate_x: f64,
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translate_y: f64,
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width: f64,
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height: f64,
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) -> Path {
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context.new_path();
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let points = hexagon(width, height);
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context.move_to(points[0].0, points[0].1);
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context.line_to(points[1].0, points[1].1);
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context.line_to(points[2].0, points[2].1);
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context.line_to(points[3].0, points[3].1);
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context.line_to(points[4].0, points[4].1);
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context.line_to(points[5].0, points[5].1);
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context.move_to(translate_x + points[0].0, translate_y + points[0].1);
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context.line_to(translate_x + points[1].0, translate_y + points[1].1);
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context.line_to(translate_x + points[2].0, translate_y + points[2].1);
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context.line_to(translate_x + points[3].0, translate_y + points[3].1);
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context.line_to(translate_x + points[4].0, translate_y + points[4].1);
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context.line_to(translate_x + points[5].0, translate_y + points[5].1);
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context.copy_path().expect("to successfully copy a path")
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}
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