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Merge pull request #890 from lmstolton/hamurabi

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Added Rust version of 43_Hammurabi
This commit is contained in:
Jeff Atwood
2023-08-27 13:32:15 -07:00
committed by GitHub
parent ebefe8a16c 6555d1cf2d
commit 0b7b162f9f
3 changed files with 278 additions and 0 deletions
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9
43_Hammurabi/rust/Cargo.toml Normal file
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[package]
name = "rust"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.5"

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43_Hammurabi/rust/README.md Normal file
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Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
Conversion to [Rust](https://www.rust-lang.org/)

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43_Hammurabi/rust/src/main.rs Normal file
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use std::io;
use rand::Rng;
fn run() {
// Set up variables
let mut year = 0;
let mut population = 95;
let mut immigrants = 5;
let mut starved = 0;
let mut total_starved = 0;
let mut plague = false;
let mut grain = 2800;
let mut bushels_fed;
let mut harvest;
let mut planted;
let mut yield_acre = 3;
let mut eaten_rats = 200;
let mut acres = 1000;
let mut land_price;
let mut bought_land;
let mut perc_starved = 0.0;
let mut game_failed = false;
'main: loop {
year += 1;
if year > 11 {
break;
}
println!("\n\n\nHAMURABI: I BEG TO REPORT TO YOU,");
println!("IN YEAR {year}, {starved} PEOPLE STARVED, {immigrants} CAME TO THE CITY,");
population += immigrants;
if plague{
population /= 2;
plague = false;
println!("A HORRIBLE PLAGUE STRUCK! HALF THE PEOPLE DIED.");
}
println!("POPULATION IS NOW {population}");
println!("THE CITY NOW OWNS {acres} ACRES.");
println!("YOU HARVESTED {yield_acre} BUSHELS PER ACRE.");
println!("THE RATS ATE {eaten_rats} BUSHELS.");
println!("YOU NOW HAVE {grain} BUSHELS IN STORE.\n");
let r = rand::thread_rng().gen_range(1..10);
land_price = r + 17;
println!("LAND IS TRADING AT {land_price} BUSHELS PER ACRE.");
loop {
println!("HOW MANY ACRES DO YOU WISH TO BUY? ");
if let Some(qty) = get_input() {
if qty < 0 { // A negative amount is impossible
impossible_task();
game_failed = true;
break 'main;
}
// Player decides not to buy any land
if qty == 0 {
bought_land = false;
break;
}
// Trying to buy more land than you can afford?
if land_price * qty as u32 > grain {
insufficient_grain(grain);
continue;
}
// Everything checks out OK
if land_price * qty as u32 <= grain {
acres += qty as u32;
grain -= land_price * qty as u32;
bought_land = true;
break;
}
}
}
if !bought_land {
loop {
println!("HOW MANY ACRES DO YOU WISH TO SELL? ");
if let Some(qty) = get_input() {
if qty < 0 { // A negative amount is impossible
impossible_task();
game_failed = true;
break 'main;
}
// Everything checks out OK
if qty as u32 <= acres {
acres -= qty as u32;
grain += land_price * qty as u32;
break;
}
// Trying to sell more land that you own
insufficient_land(acres);
}
}
}
loop {
println!("HOW MANY BUSHELS DO YOU WISH TO FEED YOUR PEOPLE? ");
if let Some(qty) = get_input() {
if qty < 0 { // A negative amount is impossible
impossible_task();
game_failed = true;
break 'main;
}
// Trying to use more grain than is in silos?
if qty as u32 > grain {
insufficient_grain(grain);
continue;
}
// Everything checks out OK
bushels_fed = qty as u32;
grain -= bushels_fed;
break;
}
}
loop {
println!("HOW MANY ACRES DO YOU WISH TO PLANT WITH SEED? ");
if let Some(qty) = get_input() {
if qty < 0 { // A negative amount is impossible
impossible_task();
game_failed = true;
break 'main;
}
// Trying to plant more acres than you own?
if qty as u32 > acres {
insufficient_land(acres);
continue;
}
// Enough grain for seed?
if qty as u32 / 2 > grain {
insufficient_grain(grain);
continue;
}
// Enough people to tend the crops?
if qty as u32 > (10 * population) {
insufficient_people(population);
continue;
}
// Everything checks out OK
planted = qty as u32;
grain -= planted / 2;
break;
}
}
// A bountiful harvest!
yield_acre = gen_random();
harvest = planted * yield_acre;
eaten_rats = 0;
// Determine if any grain was eaten by rats
let mut c = gen_random();
if c % 2 == 0 { // If c is even...
// Rats are running wild!
eaten_rats = grain / c;
}
// Update the amount of grain held
grain = grain - eaten_rats + harvest;
// Let's have some babies
c = gen_random();
immigrants = c * (20 * acres + grain) / population / 100 + 1;
// How many people had full tummies?
c = bushels_fed / 20;
// Horrors, a 15% chance of plague
let rf: f32 = rand::thread_rng().gen();
let plague_chance = (10. * ((2. * rf) - 0.3)) as i32;
if plague_chance == 0 {
plague = true;
}
if population >= c {
// Starve enough for impeachment?
starved = population - c;
if starved > (0.45 * population as f32) as u32 {
println!("YOU STARVED {starved} PEOPLE IN ONE YEAR!!!");
national_fink();
game_failed = true;
break;
}
// Calculate percentage of people that starved per year on average
perc_starved = ((year - 1) as f32 * perc_starved + starved as f32 * 100. / population as f32) / year as f32;
population = c;
total_starved += starved;
}
}
if !game_failed {
println!("IN YOUR 10-YEAR TERM OF OFFICE {perc_starved} PERCENT OF THE");
println!("POPULATION STARVED PER YEAR ON THE AVERAGE, I.E. A TOTAL OF");
println!("{total_starved} PEOPLE DIED!!");
let acres_head = acres / population;
println!("YOU STARTED WITH 10 ACRES PER PERSON AND ENDED WITH");
println!("{acres_head} ACRES PER PERSON.\n");
if perc_starved > 33. || acres_head < 7 {
national_fink();
}
else if perc_starved > 10. || acres_head < 9 {
println!("YOUR HEAVY-HANDED PERFORMANCE SMACKS OF NERO AND IVAN IV.");
println!("THE PEOPLE (REMAINING) FIND YOU AND UNPLEASANT RULER, AND,");
println!("FRANKLY, HATE YOUR GUTS!!");
}
else if perc_starved > 3. || acres_head < 10 {
let haters = (population as f32 * 0.8 * gen_random() as f32) as u32;
println!("YOUR PERFORMANCE COULD HAVE BEEN SOMEWHAT BETTER, BUT");
println!("REALLY WASN'T TOO BAD AT ALL. {haters} PEOPLE");
println!("WOULD DEARLY LIKE TO SEE YOU ASSASSINATED BUT WE ALL HAVE OUR");
println!("TRIVIAL PROBLEMS.");
} else {
println!("A FANTASTIC PERFORMANCE!!! CHARLEMANGE, DISRAELI, AND");
println!("JEFFERSON COMBINED COULD NOT HAVE DONE BETTER!\n");
}
for _ in 1..10 {
println!();
}
}
println!("\nSO LONG FOR NOW.\n");
}
fn get_input() -> Option<i32> {
let mut input = String::new();
io::stdin().read_line(&mut input).expect("Failed read_line");
match input.trim().parse() {
Ok(num) => Some(num),
Err(_) => None,
}
}
fn gen_random() -> u32 {
let r: f32 = rand::thread_rng().gen();
(r * 5.0 + 1.0) as u32
}
fn impossible_task() {
println!("HAMURABI: I CANNOT DO WHAT YOU WISH.");
println!("GET YOURSELF ANOTHER STEWARD!!!!!");
}
fn insufficient_grain(grain: u32) {
println!("HAMURABI: THINK AGAIN. YOU HAVE ONLY");
println!("{grain} BUSHELS OF GRAIN. NOW THEN,");
}
fn insufficient_land(acres: u32) {
println!("HAMURABI: THINK AGAIN. YOU OWN ONLY {acres} ACRES. NOW THEN,");
}
fn insufficient_people(population: u32) {
println!("BUT YOU HAVE ONLY {population} PEOPLE TO TEND THE FIELDS! NOW THEN,");
}
fn national_fink() {
println!("DUE TO THIS EXTREME MISMANAGEMENT YOU HAVE NOT ONLY");
println!("BEEN IMPEACHED AND THROWN OUT OF OFFICE BUT YOU HAVE");
println!("ALSO BEEN DECLARED NATIONAL FINK!!!!");
}
fn main() {
println!(" HAMURABI");
println!("CREATIVE COMPUTING MORRISTOWN, NEW JERSEY");
print!("\n\n\n\n");
println!("TRY YOUR HAND AT GOVERNING ANCIENT SUMERIA");
println!("FOR A TEN-YEAR TERM OF OFFICE.\n");
run();
}