Draw terrains within their relevant positions on the hex grid #22
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@ -197,14 +197,19 @@ impl ObjectImpl for HexGridWindowPrivate {
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context.set_line_width(2.);
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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.save().unwrap();
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context.set_source_pixbuf(&image_deep_water, 0., 0.);
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context.append_path(&hexagon_path(context, 0., 0., 100., 88.));
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context.append_path(&clip_path);
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context.clip();
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context.clip();
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context.set_source_pixbuf(&image_deep_water, 0., 0.);
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context.paint().expect("paint should succeed");
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context.paint().expect("paint should succeed");
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context.restore().unwrap();
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context.save().unwrap();
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context.append_path(&hexagon_path(context, 150., 0., 100., 88.));
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context.clip();
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context.set_source_pixbuf(&image_shallow_water, 150., 0.);
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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.paint().expect("paint should succeed");
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context.restore().unwrap();
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context.set_source_pixbuf(&image_grasslands, 300., 0.);
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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.paint().expect("paint should succeed");
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@ -275,15 +280,21 @@ fn draw_hexagon(context: &Context, center_x: f64, center_y: f64, radius: f64) {
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context.close_path();
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context.close_path();
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}
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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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context.new_path();
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let points = hexagon(width, height);
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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.move_to(translate_x + points[0].0, translate_y + points[0].1);
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context.line_to(points[1].0, points[1].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(points[2].0, points[2].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(points[3].0, points[3].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(points[4].0, points[4].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(points[5].0, points[5].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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context.copy_path().expect("to successfully copy a path")
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}
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}
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