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42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
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`#name Flip Triangular Sectors`;
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`#description Flips two selected triangular sectors, so that the connecting linedef is between the vertices that previously didn't share a linedef`;
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let sectors = Map.getSelectedSectors();
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let vertices = new Set();
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let sharedline = null;
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if(sectors.length != 2)
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die('You have to select exactly 2 sectors');
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// Make sure we have triangular sectors selected, and collect all vertices
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sectors.forEach(s => {
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let sidedefs = s.getSidedefs();
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if(sidedefs.length != 3)
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die(s + ' does not have exactly 3 sides');
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sidedefs.forEach(sd => {
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// Does this sidedef belong to the linedef that's shared between the sectors?
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if(sd.other != null && sectors.includes(sd.sector) && sectors.includes(sd.other.sector))
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sharedline = sd.line;
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// Add the vertices to the set
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vertices.add(sd.line.start)
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vertices.add(sd.line.end)
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});
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});
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// Delete the vertices of the shared line from the set
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vertices.delete(sharedline.start);
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vertices.delete(sharedline.end);
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// There should be exactly 2 vertices
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if(vertices.size != 2)
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die('Expected to find 2 vertices to draw the new line between, but got ' + vertices.size);
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// Merge the sectors...
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Map.mergeSectors(sectors);
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// ... and draw the new line
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Map.drawLines(Array.from(vertices, v => v.position));
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