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authorbelugas <belugas@openttd.org>2007-11-23 12:12:07 +0000
committerbelugas <belugas@openttd.org>2007-11-23 12:12:07 +0000
commit536be434118177078ccb76a17570fd9fc7fa43b6 (patch)
treea603634fdbf3ceb47ab24de5fa41f481868f3cf4 /src/industry_cmd.cpp
parentee81e00082cd777c0d89094b73ee43e1e7c10372 (diff)
downloadopenttd-536be434118177078ccb76a17570fd9fc7fa43b6.tar.xz
(svn r11500) -Codechange: Smooth economy fine-tuning, making industries more responsive. Patch by Sirkoz.
Diffstat (limited to 'src/industry_cmd.cpp')
-rw-r--r--src/industry_cmd.cpp21
1 files changed, 15 insertions, 6 deletions
diff --git a/src/industry_cmd.cpp b/src/industry_cmd.cpp
index a2556f3eb..2e2ae3e0d 100644
--- a/src/industry_cmd.cpp
+++ b/src/industry_cmd.cpp
@@ -1985,6 +1985,10 @@ static void ReportNewsProductionChangeIndustry(Industry *ind, CargoID type, int
);
}
+enum {
+ PERCENT_TRANSPORTED_60 = 153,
+};
+
/** Change industry production or do closure
* @param i Industry for which changes are performed
* @param monthly true if it's the monthly call, false if it's the random call
@@ -2036,18 +2040,23 @@ static void ChangeIndustryProduction(Industry *i, bool monthly)
if (smooth_economy) {
closeit = true;
for (byte j = 0; j < 2 && i->produced_cargo[j] != CT_INVALID; j++){
- uint32 r = Random();
int old_prod, new_prod, percent;
+ int mult = (i->last_month_pct_transported[j] > PERCENT_TRANSPORTED_60) ? 1 : -1;
new_prod = old_prod = i->production_rate[j];
- if (CHANCE16I(20, 1024, r)) new_prod -= max(((RandomRange(50) + 10) * old_prod) >> 8, 1U);
- /* Chance of increasing becomes better when more is transported */
- if (CHANCE16I(20 + (i->last_month_pct_transported[j] * 20 >> 8), 1024, r >> 16) && !only_decrease) {
- new_prod += max(((RandomRange(50) + 10) * old_prod) >> 8, 1U);
+ if (only_decrease || CHANCE16(1, 3)) mult *= -1;
+
+ if (CHANCE16(1, 22)) {
+ new_prod += mult * (max(((RandomRange(50) + 10) * old_prod) >> 8, 1U));
}
+ /* Prevent production to overflow or Oil Rig passengers to be over-"produced" */
new_prod = Clamp(new_prod, 1, 255);
+
+ if (((indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) != 0) && j == 1)
+ new_prod = Clamp(new_prod, 0, 16);
+
/* Do not stop closing the industry when it has the lowest possible production rate */
if (new_prod == old_prod && old_prod > 1) {
closeit = false;
@@ -2067,7 +2076,7 @@ static void ChangeIndustryProduction(Industry *i, bool monthly)
} else {
if (only_decrease || CHANCE16(1, 3)) {
/* If you transport > 60%, 66% chance we increase, else 33% chance we increase */
- if (!only_decrease && (i->last_month_pct_transported[0] > 153) != CHANCE16(1, 3)) {
+ if (!only_decrease && (i->last_month_pct_transported[0] > PERCENT_TRANSPORTED_60) != CHANCE16(1, 3)) {
mul = 1; // Increase production
} else {
div = 1; // Decrease production