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Bubberstation/code/modules/lighting/lighting_atom.dm
tonty 3f0b4abb8d Replaces world.icon_size (and some magic numbers) with defines (#86819) 
## About The Pull Request

All usages of world.icon_size in code have been replaced with new
`ICONSIZE_X`, `ICONSIZE_Y` and `ICONSIZE_ALL` defines depending on
context

Replaces some "32" magic numbers with the defines

A few bits of code have been modified to split up x/y math as well

## Why It's Good For The Game

Magic number bad, code more readable, code more flexible and I'm told
there's an access cost to doing world.icon_size so minor performance
gains

## Changelog

🆑 tonty
code: made some code relating to the world's icon size more readable
/🆑

---------

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>
2024-09-29 13:28:32 +00:00

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// The proc you should always use to set the light of this atom.
/atom/proc/set_light(l_range, l_power, l_color = NONSENSICAL_VALUE, l_angle, l_dir, l_height, l_on)
// We null everything but l_dir, because we don't want to allow for modifications while frozen
if(light_flags & LIGHT_FROZEN)
l_range = null
l_power = null
l_color = null
l_on = null
l_angle = null
l_height = null
if(l_range > 0 && l_range < MINIMUM_USEFUL_LIGHT_RANGE)
l_range = MINIMUM_USEFUL_LIGHT_RANGE //Brings the range up to 1.4, which is just barely brighter than the soft lighting that surrounds players.
if(SEND_SIGNAL(src, COMSIG_ATOM_SET_LIGHT, l_range, l_power, l_color, l_on) & COMPONENT_BLOCK_LIGHT_UPDATE)
return
if(!isnull(l_power))
set_light_power(l_power)
if(!isnull(l_range))
set_light_range(l_range)
if(l_color != NONSENSICAL_VALUE)
set_light_color(l_color)
if(!isnull(l_angle))
set_light_angle(l_angle)
if(!isnull(l_dir))
set_light_dir(l_dir)
if(!isnull(l_on))
set_light_on(l_on)
if(!isnull(l_height))
set_light_height(l_height)
update_light()
/// Will update the light (duh).
/// Creates or destroys it if needed, makes it update values, makes sure it's got the correct source turf...
/atom/proc/update_light()
SHOULD_NOT_SLEEP(TRUE)
if(light_system != COMPLEX_LIGHT)
CRASH("update_light() for [src] with following light_system value: [light_system]")
if (!light_power || !light_range || !light_on) // We won't emit light anyways, destroy the light source.
QDEL_NULL(light)
else
if (!ismovable(loc)) // We choose what atom should be the top atom of the light here.
. = src
else
. = loc
if (light) // Update the light or create it if it does not exist.
light.update(.)
else
light = new/datum/light_source(src, .)
return .
/**
* Updates the atom's opacity value.
*
* This exists to act as a hook for associated behavior.
* It notifies (potentially) affected light sources so they can update (if needed).
*/
/atom/proc/set_opacity(new_opacity)
if (new_opacity == opacity || light_flags & LIGHT_FROZEN)
return
SEND_SIGNAL(src, COMSIG_ATOM_SET_OPACITY, new_opacity)
. = opacity
opacity = new_opacity
return .
/atom/movable/set_opacity(new_opacity)
. = ..()
if(isnull(.) || !isturf(loc))
return
if(opacity)
AddElement(/datum/element/light_blocking)
else
RemoveElement(/datum/element/light_blocking)
/turf/set_opacity(new_opacity)
. = ..()
if(isnull(.))
return
recalculate_directional_opacity()
/atom/proc/flash_lighting_fx(range = FLASH_LIGHT_RANGE, power = FLASH_LIGHT_POWER, color = COLOR_WHITE, duration = FLASH_LIGHT_DURATION, light_type = /obj/effect/dummy/lighting_obj)
if(!duration)
stack_trace("Lighting FX obj created on \[[type]\] without a duration")
var/obj/effect/dummy/light_obj = new light_type(get_turf(src), range, power, color, duration)
return light_obj
/mob/living/flash_lighting_fx(range = FLASH_LIGHT_RANGE, power = FLASH_LIGHT_POWER, color = COLOR_WHITE, duration = FLASH_LIGHT_DURATION, light_type = /obj/effect/dummy/lighting_obj/moblight)
return mob_light(range, power, color, duration)
/mob/living/proc/mob_light(range, power, color, duration, light_type = /obj/effect/dummy/lighting_obj/moblight)
var/obj/effect/dummy/lighting_obj/moblight/mob_light_obj = new light_type(src, range, power, color, duration)
return mob_light_obj
/// Setter for the light power of this atom.
/atom/proc/set_light_power(new_power)
if(new_power == light_power || light_flags & LIGHT_FROZEN)
return
if(SEND_SIGNAL(src, COMSIG_ATOM_SET_LIGHT_POWER, new_power) & COMPONENT_BLOCK_LIGHT_UPDATE)
return
. = light_power
light_power = new_power
SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_LIGHT_POWER, .)
return .
/// Setter for the light range of this atom.
/atom/proc/set_light_range(new_range)
if(new_range == light_range || light_flags & LIGHT_FROZEN)
return
if(SEND_SIGNAL(src, COMSIG_ATOM_SET_LIGHT_RANGE, new_range) & COMPONENT_BLOCK_LIGHT_UPDATE)
return
. = light_range
light_range = new_range
SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_LIGHT_RANGE, .)
return .
/// Setter for the light color of this atom.
/atom/proc/set_light_color(new_color)
if(new_color == light_color || light_flags & LIGHT_FROZEN)
return
if(SEND_SIGNAL(src, COMSIG_ATOM_SET_LIGHT_COLOR, new_color) & COMPONENT_BLOCK_LIGHT_UPDATE)
return
. = light_color
light_color = new_color
SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_LIGHT_COLOR, .)
return .
/// Setter for the light angle of this atom
/atom/proc/set_light_angle(new_value)
if(new_value == light_angle || light_flags & LIGHT_FROZEN)
return
if(SEND_SIGNAL(src, COMSIG_ATOM_SET_LIGHT_ANGLE, new_value) & COMPONENT_BLOCK_LIGHT_UPDATE)
return
. = light_angle
light_angle = new_value
SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_LIGHT_ANGLE, .)
return .
/// Setter for the light direction of this atom
/atom/proc/set_light_dir(new_value)
// No frozen check here because we allow direction changes in a freeze
if(new_value == light_dir)
return
if(SEND_SIGNAL(src, COMSIG_ATOM_SET_LIGHT_DIR, new_value) & COMPONENT_BLOCK_LIGHT_UPDATE)
return
. = light_dir
light_dir = new_value
SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_LIGHT_DIR, .)
return .
/// Setter for whether or not this atom's light is on.
/atom/proc/set_light_on(new_value)
if(new_value == light_on || light_flags & LIGHT_FROZEN)
return
if(SEND_SIGNAL(src, COMSIG_ATOM_SET_LIGHT_ON, new_value) & COMPONENT_BLOCK_LIGHT_UPDATE)
return
. = light_on
light_on = new_value
SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_LIGHT_ON, .)
return .
/// Setter for the height of our light
/atom/proc/set_light_height(new_value)
if(new_value == light_height || light_flags & LIGHT_FROZEN)
return
if(SEND_SIGNAL(src, COMSIG_ATOM_SET_LIGHT_HEIGHT, new_value) & COMPONENT_BLOCK_LIGHT_UPDATE)
return
. = light_height
light_height = new_value
SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_LIGHT_HEIGHT, .)
return .
/// Setter for the light flags of this atom.
/atom/proc/set_light_flags(new_value)
if(new_value == light_flags || (light_flags & LIGHT_FROZEN && new_value & LIGHT_FROZEN))
return
if(SEND_SIGNAL(src, COMSIG_ATOM_SET_LIGHT_FLAGS, new_value) & COMPONENT_BLOCK_LIGHT_UPDATE)
return
. = light_flags
light_flags = new_value
SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_LIGHT_FLAGS, .)
return .
/atom/proc/get_light_offset()
return list(0, 0)
/// Returns a list of x and y offsets to apply to our visual lighting position
/proc/calculate_light_offset(atom/get_offset)
var/list/hand_back
if(!(get_offset.light_flags & LIGHT_IGNORE_OFFSET))
hand_back = get_visual_offset(get_offset)
hand_back[1] = -hand_back[1] / ICON_SIZE_X
hand_back[2] = -hand_back[2] / ICON_SIZE_Y
else
hand_back = list(0, 0)
var/list/atoms_opinion = get_offset.get_light_offset()
hand_back[1] += atoms_opinion[1]
hand_back[2] += atoms_opinion[2]
return hand_back
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