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library(tidyverse) | |
modifier <- function(x) { | |
floor((x - 10) / 2) | |
} | |
skill_ability <- tribble( | |
~skill, ~ability_code_upper, | |
#-------|------------------ | |
"athletics", "STR", | |
"acrobatics", "DEX", | |
"sleight_of_hand", "DEX", | |
"stealth", "DEX", | |
"arcana", "INT", | |
"history", "INT", | |
"investigation", "INT", | |
"nature", "INT", | |
"religion", "INT", | |
"animal_handling", "WIS", | |
"insight", "WIS", | |
"medicine", "WIS", | |
"perception", "WIS", | |
"survival", "WIS", | |
"deception", "CHA", | |
"intimidation", "CHA", | |
"performance", "CHA", | |
"persuasion", "CHA", | |
) | |
extract_bracketed <- function(x) { | |
if (!grepl("\\(.*\\)", x)) { | |
return(NA) | |
} else { | |
gsub(".*\\((.*?)\\).*", "\\1", x) | |
} | |
} | |
identify_bold_text <- function(x, bold_text) { | |
grepl(paste0("\\*\\*", bold_text, "\\*\\*"), x, ignore.case = TRUE) | |
} | |
strip_bold_text <- function(x) { | |
gsub("\\*\\*(.*?)\\*\\*", "", x, ignore.case = TRUE) %>% trimws | |
} | |
extract_from_bold_text <- function(lines, bold_text) { | |
lines %>% | |
filter(identify_bold_text(value, bold_text)) %>% | |
as.character %>% | |
strip_bold_text | |
} | |
extract_from_colon_heading <- function(lines, heading) { | |
lines %>% | |
filter(grepl(paste0(heading, ":"), value)) %>% | |
gsub(paste0(heading, ":"), "", .) %>% | |
as.character %>% | |
trimws | |
} | |
parse_monster <- function(monster) { | |
lines <- monster %>% | |
stringi::stri_split_lines(omit_empty = TRUE) %>% | |
unlist %>% | |
as_tibble %>% # much easier to deal with than lists | |
mutate_all(trimws) %>% | |
mutate_all(function(x) gsub("_", "", x)) # remove italics | |
monster_name <- lines %>% extract_from_colon_heading("name") | |
header_regex <- paste0("# ", gsub("\\s*\\([^\\)]+\\)", "", monster_name)) # remove bracketed material | |
main_header <- min(which(grepl(header_regex, lines$value, ignore.case = TRUE), arr.ind = TRUE)) | |
monster_summary <- lines$value[main_header + 1] %>% trimws # eg. "Medium humanoid (any race), any non-lawful alignment" | |
monster_size <- stringr::word(monster_summary) # first word | |
monster_race <- gsub(paste0(".*", monster_size, "(.*?),.*"), "\\1", monster_summary) %>% trimws | |
monster_alignment <- gsub(".*,(.*?)", "\\1", monster_summary) %>% trimws | |
description_header_row <- which(lines == "### Description", arr.ind = TRUE)[,"row"] | |
if (length(description_header_row) == 0) { | |
monster_description <- NA | |
} else { | |
monster_description <- lines[description_header_row + 1,] %>% as.character | |
} | |
header_rows <- which(grepl("###", lines$value), arr.ind = TRUE) | |
actions_header_row <- which(lines == "### Actions", arr.ind = TRUE)[,"row"] | |
if (length(actions_header_row) == 0) { | |
monster_actions <- NA | |
} else { | |
if (max(header_rows) == actions_header_row) { | |
last_action = nrow(lines) # in this case, the actions are the last lines | |
} else { | |
last_action <- min(header_rows[header_rows > actions_header_row]) - 1 # the row before the heading that comes after ### Actions | |
} | |
action_rows <- seq(actions_header_row + 1, last_action) | |
monster_actions <- lines$value[action_rows] | |
monster_actions <- monster_actions %>% purrr::map(function(x) { | |
action_name <- gsub(".*\\*\\*(.*?)\\.\\*\\*.*", "\\1", x) | |
action <- x %>% strip_bold_text %>% trimws | |
names(action) <- action_name | |
action | |
}) %>% purrr::reduce(c) | |
} | |
ability_header <- min(which(grepl("\\| STR", lines$value), arr.ind = TRUE)) | |
ability_text <- lines$value[ability_header + 2] | |
ability_vector <- ability_text %>% strsplit("\\|") %>% unlist | |
monster_ability <- readr::parse_number(ability_vector[!(ability_vector == "")]) | |
names(monster_ability) <- c("STR", "DEX", "CON", "INT", "WIS", "CHA") | |
monster_modifiers <- monster_ability %>% | |
as.list %>% | |
as_tibble %>% | |
mutate_all(modifier) %>% | |
gather(key = ability_code_upper, value = modifier) | |
base_skills <- skill_ability %>% | |
left_join(monster_modifiers, by = "ability_code_upper") %>% | |
select(skill, modifier) | |
listed_skills <- lines %>% | |
extract_from_bold_text("Skills") %>% | |
strsplit(", ") %>% | |
unlist %>% | |
lapply(function(x) { | |
skill_name <- word(x) | |
skill_modifier <- c(readr::parse_number(x)) | |
names(skill_modifier) <- tolower(skill_name) | |
skill_modifier | |
}) %>% | |
unlist %>% # This is | |
as.list %>% # so weird | |
as_tibble %>% | |
gather(key = skill, value = modifier) %>% | |
mutate(skill = gsub(" ", "_", skill)) # keep naming conventions (underscores) | |
monster_skills <- if (length(listed_skills) == 0) { | |
base_skills | |
} else { | |
listed_skills %>% rbind( | |
anti_join(base_skills, listed_skills, by = "skill") | |
) | |
} | |
monster_skills <- monster_skills[match(base_skills$skill, monster_skills$skill),] # maintain skill order | |
tibble( | |
name = monster_name, | |
type = lines %>% extract_from_colon_heading("type"), | |
size = monster_size, | |
alignment = monster_alignment, | |
cr = lines %>% extract_from_colon_heading("cr") %>% as.numeric, | |
xp = lines %>% extract_from_bold_text("challenge") %>% extract_bracketed %>% readr::parse_number(), | |
ac = lines %>% extract_from_bold_text("Armor Class") %>% readr::parse_number(), | |
ac_note = lines %>% extract_from_bold_text("Armor Class") %>% extract_bracketed, | |
hp_avg = lines %>% extract_from_bold_text("Hit Points") %>% readr::parse_number(), | |
hp = lines %>% extract_from_bold_text("Hit Points") %>% extract_bracketed, | |
str = monster_ability["STR"], | |
dex = monster_ability["DEX"], | |
con = monster_ability["CON"], | |
int = monster_ability["INT"], | |
wis = monster_ability["WIS"], | |
cha = monster_ability["CHA"], | |
senses = lines %>% extract_from_bold_text("Senses"), | |
languages = lines %>% extract_from_bold_text("Languages"), | |
speed = lines %>% extract_from_bold_text("Speed"), | |
actions = monster_actions %>% list, | |
description = monster_description | |
) %>% | |
cbind(spread(monster_skills, skill, modifier)) %>% | |
as_tibble | |
} |
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