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Minor changes to 43_Hammurabi/rust

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- Minor changes to make code more idiomatic (clippy no longer has any
issues), no functional changes

- Added some additional comments to make code easier to follow
This commit is contained in:
Lyndon Stolton
2023-08-27 21:13:26 +01:00
parent 41ef1ba818
commit 6555d1cf2d
1 changed files with 20 additions and 12 deletions
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32
43_Hammurabi/rust/src/main.rs
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@@ -2,6 +2,7 @@ use std::io;
use rand::Rng; use rand::Rng;
fn run() { fn run() {
// Set up variables
let mut year = 0; let mut year = 0;
let mut population = 95; let mut population = 95;
let mut immigrants = 5; let mut immigrants = 5;
@@ -27,9 +28,9 @@ fn run() {
} }
println!("\n\n\nHAMURABI: I BEG TO REPORT TO YOU,"); println!("\n\n\nHAMURABI: I BEG TO REPORT TO YOU,");
println!("IN YEAR {year}, {starved} PEOPLE STARVED, {immigrants} CAME TO THE CITY,"); println!("IN YEAR {year}, {starved} PEOPLE STARVED, {immigrants} CAME TO THE CITY,");
population = population + immigrants; population += immigrants;
if plague{ if plague{
population = population / 2; population /= 2;
plague = false; plague = false;
println!("A HORRIBLE PLAGUE STRUCK! HALF THE PEOPLE DIED."); println!("A HORRIBLE PLAGUE STRUCK! HALF THE PEOPLE DIED.");
} }
@@ -45,19 +46,22 @@ fn run() {
loop { loop {
println!("HOW MANY ACRES DO YOU WISH TO BUY? "); println!("HOW MANY ACRES DO YOU WISH TO BUY? ");
if let Some(qty) = get_input() { if let Some(qty) = get_input() {
if qty < 0 { if qty < 0 { // A negative amount is impossible
impossible_task(); impossible_task();
game_failed = true; game_failed = true;
break 'main; break 'main;
} }
// Player decides not to buy any land
if qty == 0 { if qty == 0 {
bought_land = false; bought_land = false;
break; break;
} }
// Trying to buy more land than you can afford?
if land_price * qty as u32 > grain { if land_price * qty as u32 > grain {
insufficient_grain(grain); insufficient_grain(grain);
continue; continue;
} }
// Everything checks out OK
if land_price * qty as u32 <= grain { if land_price * qty as u32 <= grain {
acres += qty as u32; acres += qty as u32;
grain -= land_price * qty as u32; grain -= land_price * qty as u32;
@@ -67,20 +71,22 @@ fn run() {
} }
} }
if bought_land == false { if !bought_land {
loop { loop {
println!("HOW MANY ACRES DO YOU WISH TO SELL? "); println!("HOW MANY ACRES DO YOU WISH TO SELL? ");
if let Some(qty) = get_input() { if let Some(qty) = get_input() {
if qty < 0 { if qty < 0 { // A negative amount is impossible
impossible_task(); impossible_task();
game_failed = true; game_failed = true;
break 'main; break 'main;
} }
// Everything checks out OK
if qty as u32 <= acres { if qty as u32 <= acres {
acres -= qty as u32; acres -= qty as u32;
grain += land_price * qty as u32; grain += land_price * qty as u32;
break; break;
} }
// Trying to sell more land that you own
insufficient_land(acres); insufficient_land(acres);
} }
} }
@@ -89,7 +95,7 @@ fn run() {
loop { loop {
println!("HOW MANY BUSHELS DO YOU WISH TO FEED YOUR PEOPLE? "); println!("HOW MANY BUSHELS DO YOU WISH TO FEED YOUR PEOPLE? ");
if let Some(qty) = get_input() { if let Some(qty) = get_input() {
if qty < 0 { if qty < 0 { // A negative amount is impossible
impossible_task(); impossible_task();
game_failed = true; game_failed = true;
break 'main; break 'main;
@@ -99,6 +105,7 @@ fn run() {
insufficient_grain(grain); insufficient_grain(grain);
continue; continue;
} }
// Everything checks out OK
bushels_fed = qty as u32; bushels_fed = qty as u32;
grain -= bushels_fed; grain -= bushels_fed;
break; break;
@@ -108,7 +115,7 @@ fn run() {
loop { loop {
println!("HOW MANY ACRES DO YOU WISH TO PLANT WITH SEED? "); println!("HOW MANY ACRES DO YOU WISH TO PLANT WITH SEED? ");
if let Some(qty) = get_input() { if let Some(qty) = get_input() {
if qty < 0 { if qty < 0 { // A negative amount is impossible
impossible_task(); impossible_task();
game_failed = true; game_failed = true;
break 'main; break 'main;
@@ -128,8 +135,9 @@ fn run() {
insufficient_people(population); insufficient_people(population);
continue; continue;
} }
// Everything checks out OK
planted = qty as u32; planted = qty as u32;
grain = grain - (planted / 2); grain -= planted / 2;
break; break;
} }
} }
@@ -169,14 +177,14 @@ fn run() {
game_failed = true; game_failed = true;
break; break;
} }
// Calculate percentages here // 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; perc_starved = ((year - 1) as f32 * perc_starved + starved as f32 * 100. / population as f32) / year as f32;
population = c; population = c;
total_starved = total_starved + starved; total_starved += starved;
} }
} }
if game_failed == false { if !game_failed {
println!("IN YOUR 10-YEAR TERM OF OFFICE {perc_starved} PERCENT OF THE"); 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!("POPULATION STARVED PER YEAR ON THE AVERAGE, I.E. A TOTAL OF");
println!("{total_starved} PEOPLE DIED!!"); println!("{total_starved} PEOPLE DIED!!");
@@ -202,7 +210,7 @@ fn run() {
println!("JEFFERSON COMBINED COULD NOT HAVE DONE BETTER!\n"); println!("JEFFERSON COMBINED COULD NOT HAVE DONE BETTER!\n");
} }
for _ in 1..10 { for _ in 1..10 {
print!("\n"); println!();
} }
} }