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920f2c6442
## About The Pull Request Adds the ability for explosions to be directional. This is achieved by adding an angle check to `prepare_explosion_turfs()` to drop any turfs outside the cone of the explosion. If the arc covers a full 360 degrees, as is the default, it will accept all the turfs without performing the angle check. Uses this functionality to rework both rocket launcher backblast and X4 explosions. Rocket launcher backblast has been changed from a shotgun of indendiary bullets to a directional explosion of similar length. X4 now uses a directional explosion to "ensure user safety". Apparently the old method of moving the explosion one tile away didn't even work, as it blew up `target` before trying to check its density for the directional behaviour. https://youtu.be/Mzdt7d7Le2Y ## Why It's Good For The Game Directional explosions - Useful functionality for a range of potential use cases, which can be implemented with minimal extra processing cost (Worst case scenario being very large directional explosions) Backblast - Looks way cooler than a bunch of projectiles, and should be significantly more functional in high-lag situations where projectile code tends to get fucky X4 - More predictable for players wanting to use it as a breaching charge, you can actually stand near the charge and not have to worry about being hoist upon your own petard. ## Changelog 🆑 add: Added support for directional explosions. add: Rocket launcher backblast is now 271% more explosive, check your six for friendlies! add: X4 charges now explode in a cone away from the user when placed on a sufficiently solid object. fix: X4 charges will now behave correctly when placed on dense atoms (note: don't try to read a variable from an atom you just blew up) /🆑
75 lines
3.5 KiB
Plaintext
75 lines
3.5 KiB
Plaintext
// The severity of explosions. Why are these inverted? I have no idea, but git blame doesn't go back far enough for me to find out.
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/// The (current) highest possible explosion severity.
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#define EXPLODE_DEVASTATE 3
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/// The (current) middling explosion severity.
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#define EXPLODE_HEAVY 2
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/// The (current) lowest possible explosion severity.
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#define EXPLODE_LIGHT 1
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/// The default explosion severity used to mark that an object is beyond the impact range of the explosion.
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#define EXPLODE_NONE 0
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//gibtonite state defines
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/// Gibtonite has not been mined
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#define GIBTONITE_UNSTRUCK 0
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/// Gibtonite has been mined and will explode soon
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#define GIBTONITE_ACTIVE 1
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/// Gibtonite has been stablized preventing an explosion
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#define GIBTONITE_STABLE 2
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/// Gibtonite will now explode
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#define GIBTONITE_DETONATE 3
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/// A wrapper for [/atom/proc/ex_act] to ensure that the explosion propagation and attendant signal are always handled.
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#define EX_ACT(target, args...)\
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if(!(target.flags_1 & PREVENT_CONTENTS_EXPLOSION_1)) { \
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target.contents_explosion(##args);\
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};\
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if(!(SEND_SIGNAL(target, COMSIG_ATOM_PRE_EX_ACT, ##args) & COMPONENT_CANCEL_EX_ACT)) { \
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SEND_SIGNAL(target, COMSIG_ATOM_EX_ACT, ##args);\
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target.ex_act(##args);\
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}
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// Internal explosion argument list keys.
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// Must match the arguments to [/datum/controller/subsystem/explosions/proc/propagate_blastwave]
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/// The origin atom of the explosion.
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#define EXARG_KEY_ORIGIN "origin"
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/// The potential cause of the explosion, if different to origin.
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#define EXARG_KEY_EXPLOSION_CAUSE STRINGIFY(explosion_cause)
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/// The devastation range of the explosion.
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#define EXARG_KEY_DEV_RANGE STRINGIFY(devastation_range)
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/// The heavy impact range of the explosion.
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#define EXARG_KEY_HEAVY_RANGE STRINGIFY(heavy_impact_range)
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/// The light impact range of the explosion.
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#define EXARG_KEY_LIGHT_RANGE STRINGIFY(light_impact_range)
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/// The flame range of the explosion.
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#define EXARG_KEY_FLAME_RANGE STRINGIFY(flame_range)
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/// The flash range of the explosion.
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#define EXARG_KEY_FLASH_RANGE STRINGIFY(flash_range)
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/// Whether or not the explosion should be logged.
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#define EXARG_KEY_ADMIN_LOG STRINGIFY(adminlog)
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/// Whether or not the explosion should ignore the bombcap.
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#define EXARG_KEY_IGNORE_CAP STRINGIFY(ignorecap)
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/// Whether or not the explosion should produce sound effects and screenshake if it is large enough to warrant it.
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#define EXARG_KEY_SILENT STRINGIFY(silent)
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/// Whether or not the explosion should produce smoke if it is large enough to warrant it.
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#define EXARG_KEY_SMOKE STRINGIFY(smoke)
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/// Whether or not to leave the epicenter turf unaffected
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#define EXARG_KEY_PROTECT_EPICENTER STRINGIFY(protect_epicenter)
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/// For directional explosions, the angle the explosion is pointing at.
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#define EXARG_KEY_EXPLOSION_DIRECTION STRINGIFY(explosion_direction)
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/// For directional explosions, the angle covered by the explosion, centred on EXPLOSION_DIRECTION.
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#define EXARG_KEY_EXPLOSION_ARC STRINGIFY(explosion_arc)
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// Explodable component deletion values
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/// Makes the explodable component queue to reset its exploding status when it detonates.
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#define EXPLODABLE_NO_DELETE 0
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/// Makes the explodable component delete itself when it detonates.
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#define EXPLODABLE_DELETE_SELF 1
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/// Makes the explodable component delete its parent when it detonates.
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#define EXPLODABLE_DELETE_PARENT 2
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// Flags for [/obj/item/grenade/var/dud_flags]
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/// The grenade cannot detonate at all. It is innately nonfunctional.
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#define GRENADE_DUD (1<<0)
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/// The grenade has been used and as such cannot detonate.
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#define GRENADE_USED (1<<1)
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