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New unit stat development functions

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The macros defining unit stat development in tech are somewhat
inconvenient to use.  Define more convenient functions, and hide away
the macros near the function definitions.
This commit is contained in:
Markus Armbruster 2008-02-29 06:49:18 +01:00
parent 3d0e083aec
commit 0219bf086a
10 changed files with 222 additions and 118 deletions
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39
src/lib/global/plane.c
View file

@ -37,6 +37,8 @@
#include <config.h>
#include <math.h>
#include "misc.h"
#include "plane.h"
/*
@ -45,3 +47,40 @@
* Terminated by a sentinel with null pl_name.
*/
struct plchrstr plchr[PLN_TYPE_MAX + 2];
#define logx(a, b) (log((a)) / log((b)))
#define PLN_ATTDEF(b, t) (b + ((b?1:0) * ((t/20)>10?10:(t/20))))
#define PLN_ACC(b, t) (b * (1.0 - (sqrt(t) / 50.)))
#define PLN_RAN(b, t) (t ? (b + (logx(t, 2.0))) : b)
#define PLN_LOAD(b, t) (t ? (b * (logx(t, 50.0) < 1.0 ? 1.0 : \
logx(t, 50.0))) : b)
int
pl_att(struct plchrstr *pcp, int tech)
{
return PLN_ATTDEF(pcp->pl_att, MAX(0, tech - pcp->pl_tech));
}
int
pl_def(struct plchrstr *pcp, int tech)
{
return PLN_ATTDEF(pcp->pl_def, MAX(0, tech - pcp->pl_tech));
}
int
pl_acc(struct plchrstr *pcp, int tech)
{
return PLN_ACC(pcp->pl_acc, MAX(0, tech - pcp->pl_tech));
}
int
pl_range(struct plchrstr *pcp, int tech)
{
return PLN_RAN(pcp->pl_range, MAX(0, tech - pcp->pl_tech));
}
int
pl_load(struct plchrstr *pcp, int tech)
{
return PLN_LOAD(pcp->pl_load, MAX(0, tech - pcp->pl_tech));
}