- Alphabet and Writing
- The Wheel
Nitrogen fertilizers are also associated with one of the most tragic - and often forgotten - personalities in science history Fritz Haber. https://en.wikipedia.org/wiki/Fritz_Haber
In techs.ruleset
Code: Select all
[advance_fertilizer]
name = _("Fertilizer")
req1 = "Refining"
req2 = "Electricity"
root_req = "Chemistry"
graphic = "a.fertilizer"
graphic_alt = "-"
helptext = _("\
Bread from Air\
\
Fertilizers provide plant nutricients and make irrigated and \
farmland fields more productive with a bonus of food.\
\
Irrigated fields yield 20% more food output\
Farmland fields yield 40% more food output
")
Code: Select all
[effect_fertilizer_irrigation]
type = "Output_Per_Tile"
value = 20
reqs = {
"type", "name", "range", "present"
"Tech", "Fertilizer", "Player", TRUE
"Extra", "Irrigation", "Local", TRUE
"OutputType", "Food", "Local", TRUE
"Extra", "Mine", "Local", FALSE
"Extra", "Oil Well", "Local", FALSE
}
[effect_fertilizer_farmland]
type = "Output_Per_Tile"
value = 40
reqs = {
"type", "name", "range", "present"
"Tech", "Fertilizer", "Player", TRUE
"Extra", "Farmland", "Local", TRUE
"OutputType", "Food", "Local", TRUE
"Extra", "Mine", "Local", FALSE
"Extra", "Oil Well", "Local", FALSE
}