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Make Hexagonal tiles rotate 180 degrees to fit grid #107728

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Make Hexagonal tiles rotate 180 degrees to fit grid #107728

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28 changes: 20 additions & 8 deletions editor/plugins/tiles/tile_map_layer_editor.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1522,18 +1522,30 @@ int TileMapLayerEditorTilesPlugin::_get_transformed_alternative(int p_alternativ
bool transform_flip_v = p_alternative_id & TileSetAtlasSource::TRANSFORM_FLIP_V;
bool transform_transpose = p_alternative_id & TileSetAtlasSource::TRANSFORM_TRANSPOSE;

bool is_hexagon = _get_edited_layer()->get_tile_set()->get_tile_shape() == TileSet::TILE_SHAPE_HEXAGON;

switch (p_transform) {
case TRANSFORM_ROTATE_LEFT: { // (h, v, t) -> (v, !h, !t)
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@kleonc kleonc Jun 20, 2025

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Note that the changes make this comment partially outdated (same for case TRANSFORM_ROTATE_RIGHT), as it refers only to 90° rotations, which now is not what would be always performed.

bool negated_flip_h = !transform_flip_h;
transform_flip_h = transform_flip_v;
transform_flip_v = negated_flip_h;
transform_transpose = !transform_transpose;
if (is_hexagon) {
transform_flip_h = !transform_flip_h;
transform_flip_v = !transform_flip_v;
} else {
bool negated_flip_h = !transform_flip_h;
transform_flip_h = transform_flip_v;
transform_flip_v = negated_flip_h;
transform_transpose = !transform_transpose;
}
} break;
case TRANSFORM_ROTATE_RIGHT: { // (h, v, t) -> (!v, h, !t)
bool negated_flip_v = !transform_flip_v;
transform_flip_v = transform_flip_h;
transform_flip_h = negated_flip_v;
transform_transpose = !transform_transpose;
if (is_hexagon) {
transform_flip_h = !transform_flip_h;
transform_flip_v = !transform_flip_v;
} else {
bool negated_flip_v = !transform_flip_v;
transform_flip_v = transform_flip_h;
transform_flip_h = negated_flip_v;
transform_transpose = !transform_transpose;
}
} break;
case TRANSFORM_FLIP_H: { // (h, v, t) -> (!h, v, t)
transform_flip_h = !transform_flip_h;
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