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var/global/datum/xgm_gas_data/gas_data
/datum/xgm_gas_data
/// Simple list of all the gas IDs.
var/list/gases = list()
/// The friendly, human-readable name for the gas.
var/list/name = list()
/// Specific heat of the gas. Used for calculating heat capacity.
var/list/specific_heat = list()
/// Molar mass of the gas. Used for calculating specific entropy.
var/list/molar_mass = list()
/// Tile overlays. /obj/gas_overlay, created from references to 'icons/effects/tile_effects.dmi'
var/list/tile_overlay = list()
/// Optional color for tile overlay
var/list/tile_overlay_color = list()
/// Overlay limits. There must be at least this many moles for the overlay to appear.
var/list/overlay_limit = list()
/// Flags.
var/list/flags = list()
/singleton/xgm_gas
var/id = ""
var/name = "Unnamed Gas"
var/desc
var/specific_heat = 20 // J/(mol*K)
var/molar_mass = 0.032 // kg/mol
var/tile_overlay = "generic"
var/tile_color = null
var/overlay_limit = null
var/flags = 0
/hook/startup/proc/generateGasData()
gas_data = new
for(var/p in (typesof(/singleton/xgm_gas) - /singleton/xgm_gas))
var/singleton/xgm_gas/gas = new p //avoid initial() because of potential New() actions
if(gas.id in gas_data.gases)
stack_trace("ERROR: Duplicate gas id `[gas.id]` in `[p]`")
gas_data.gases += gas.id
gas_data.name[gas.id] = gas.name
gas_data.specific_heat[gas.id] = gas.specific_heat
gas_data.molar_mass[gas.id] = gas.molar_mass
if(gas.overlay_limit)
gas_data.overlay_limit[gas.id] = gas.overlay_limit
gas_data.tile_overlay[gas.id] = gas.tile_overlay
gas_data.tile_overlay_color[gas.id] = gas.tile_color
gas_data.flags[gas.id] = gas.flags
return 1
/obj/gas_overlay
name = "gas"
desc = "You shouldn't be clicking this."
icon = 'icons/effects/tile_effects.dmi'
icon_state = "generic"
layer = FIRE_LAYER
appearance_flags = DEFAULT_APPEARANCE_FLAGS | RESET_COLOR
mouse_opacity = 0
var/gas_id
/obj/gas_overlay/proc/update_alpha_animation(new_alpha)
animate(src, alpha = new_alpha)
alpha = new_alpha
animate(src, alpha = 0.8 * new_alpha, time = 10, easing = SINE_EASING | EASE_OUT, loop = -1)
animate(alpha = new_alpha, time = 10, easing = SINE_EASING | EASE_IN, loop = -1)
/obj/gas_overlay/Initialize(mapload, gas)
. = ..()
gas_id = gas
if(gas_data.tile_overlay[gas_id])
icon_state = gas_data.tile_overlay[gas_id]
color = gas_data.tile_overlay_color[gas_id]
/obj/gas_overlay/heat
name = "gas"
desc = "You shouldn't be clicking this."
plane = HEAT_EFFECT_PLANE
gas_id = GAS_HEAT
render_source = HEAT_EFFECT_PLATE_RENDER_TARGET
/obj/gas_overlay/heat/Initialize(mapload, gas)
. = ..()
icon = null
icon_state = null
/obj/effect/gas_cold_back
plane = GAME_PLANE
layer = BELOW_OBJ_LAYER
render_source = COLD_EFFECT_BACK_PLATE_RENDER_TARGET
/obj/gas_overlay/cold
name = "gas"
desc = "You shouldn't be clicking this."
gas_id = GAS_COLD
var/obj/effect/gas_cold_back/b = null
render_source = COLD_EFFECT_PLATE_RENDER_TARGET
/obj/gas_overlay/cold/Initialize(mapload, gas)
. = ..()
icon = null
icon_state = null
b = new()
add_vis_contents(b)