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* Starlight Polish (Space is blue!) (#72886) <!-- Write **BELOW** The Headers and **ABOVE** The comments else it may not be viewable. --> <!-- You can view Contributing.MD for a detailed description of the pull request process. --> ## About The Pull Request Adds support to underlays to realize_overlays Ensures decals properly handle plane offsets Fixes space lighting double applying if it's changeturf'd into. this will be important later Makes solar vis_contents block emissives as expected Moves transit tube overlays to update_overlays, adds emissive blockers to them #### Adds render steps An expansion on render_target based emissive blockers. They allow us to hijack an object's appearance and draw it somewhere else, or even modify it, THEN draw it somewhere else. They chain quite nicely Fixes shuttles deleting z holder objects #### Makes space emissive, makes walls and floors block emissives The core idea here goes like this: We make space glow, and give its overlays some color This way, the tile and space parallax remain fullbright, along with anything that doesn't block emissives, but anything that does block emissives will instead get shaded the color of starlight This requires a bit of extra work, see later This is done automatically with render relays, which now support specifiying layer and color (Need to make an editor for these one of these days) The emissive blocking floor stuff requires making a second render plate to prevent double scaling Also adds some new layering defines for lighting, and ensures all turf lights have a layer. We'll get to this soon #### Makes things in space blue We color them the same as starlight, by taking advantage of space being emissive This means that things in space that block emissive will block it correctly and be colored blue by the light overlay, but space itself will remain fullbright This does require redefining what always_lit means, but nothing but cordons use that so it's fineee #### Makes glass above space glow, and some other stuff Glass tiles that sit above space will now shine light with matching color to the glasses color. This includes mat tiles. Glass tiles (not mat because they have no alpha) also only partially block emissives. Adds a new proc that uses render steps to acomplish this, essentially we're cutting out bits below X alpha and drawing what remains as an emissive. #### Modifies partial space showing to support glow Essentially, alongside displaying space as an underlay, we also display a light overlay colored like starlight. That starlight overlay gets masked to only be visible in bits that do not contain any alpha. We also mask the turf lighting to not go into bits that have no alpha, to ensure we get the effect we want. This is done with that lighting layer thing I mentioned earlier. #### Makes appearance realization's list output ordered I want it output in order of overlay, sub overlay suboverlay, next overlay Need to use insert for that ## Why It's Good For The Game Pretty! Also having space be emissive is a very very good way to test for fucked emissive blockers (If it's broken why are we even drawing the overlay) I know for a fact mob blockers on lizards and socks are kinda yorked, I think there's more <details> <summary> Old </summary>    </details> <details> <summary> New </summary>    </details> ## Changelog <!-- If your PR modifies aspects of the game that can be concretely observed by players or admins you should add a changelog. If your change does NOT meet this description, remove this section. Be sure to properly mark your PRs to prevent unnecessary GBP loss. You can read up on GBP and it's effects on PRs in the tgstation guides for contributors. Please note that maintainers freely reserve the right to remove and add tags should they deem it appropriate. You can attempt to finagle the system all you want, but it's best to shoot for clear communication right off the bat. --> 🆑 add: Space now makes things in it starlight faintly blue fix: Glass floors that display space now properly let space shine through them, rather then hiding it in the dark add: Glass floors above space now glow faintly depending on their glass type /🆑 <!-- Both 🆑's are required for the changelog to work! You can put your name to the right of the first 🆑 if you want to overwrite your GitHub username as author ingame. --> <!-- You can use multiple of the same prefix (they're only used for the icon ingame) and delete the unneeded ones. Despite some of the tags, changelogs should generally represent how a player might be affected by the changes rather than a summary of the PR's contents. --> --------- Co-authored-by: Zephyr <12817816+ZephyrTFA@users.noreply.github.com> * update modular * Update _decal.dm * Update _decal.dm --------- Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@users.noreply.github.com> Co-authored-by: Zephyr <12817816+ZephyrTFA@users.noreply.github.com> Co-authored-by: Tom <8881105+tf-4@users.noreply.github.com> Co-authored-by: lessthanthree <83487515+lessthnthree@users.noreply.github.com>
The code in this module originally evolved from dmm_suite and has since been specialized for SS13 and otherwise tweaked to fit /tg/station's needs. dmm_suite version 1.0 Released January 30th, 2011. NOTE: Map saving functionality removed defines the object /dmm_suite - Provides the proc load_map() - Loads the specified map file onto the specified z-level. - provides the proc write_map() - Returns a text string of the map in dmm format ready for output to a file. - provides the proc save_map() - Returns a .dmm file if map is saved - Returns FALSE if map fails to save The dmm_suite provides saving and loading of map files in BYOND's native DMM map format. It approximates the map saving and loading processes of the Dream Maker and Dream Seeker programs so as to allow editing, saving, and loading of maps at runtime. ------------------------ To save a map at runtime, create an instance of /dmm_suite, and then call write_map(), which accepts three arguments: - A turf representing one corner of a three dimensional grid (Required). - Another turf representing the other corner of the same grid (Required). - Any, or a combination, of several bit flags (Optional, see documentation). The order in which the turfs are supplied does not matter, the /dmm_writer will determine the grid containing both, in much the same way as DM's block() function. write_map() will then return a string representing the saved map in dmm format; this string can then be saved to a file, or used for any other purose. ------------------------ To load a map at runtime, create an instance of /dmm_suite, and then call load_map(), which accepts two arguments: - A .dmm file to load (Required). - A number representing the z-level on which to start loading the map (Optional). The /dmm_suite will load the map file starting on the specified z-level. If no z-level was specified, world.maxz will be increased so as to fit the map. Note that if you wish to load a map onto a z-level that already has objects on it, you will have to handle the removal of those objects. Otherwise the new map will simply load the new objects on top of the old ones. Also note that all type paths specified in the .dmm file must exist in the world's code, and that the /dmm_reader trusts that files to be loaded are in fact valid .dmm files. Errors in the .dmm format will cause runtime errors.