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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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43
src/lib/global/ship.c
View file

@ -37,6 +37,8 @@
#include <config.h>
#include <math.h>
#include "misc.h"
#include "ship.h"
/*
@ -45,3 +47,44 @@
* Terminated by a sentinel with null m_name.
*/
struct mchrstr mchr[SHP_TYPE_MAX + 2];
#define logx(a, b) (log((a)) / log((b)))
#define SHP_DEF(b, t) (t ? (b * (logx(t, 40.0) < 1.0 ? 1.0 : \
logx(t, 40.0))) : b)
#define SHP_SPD(b, t) (t ? (b * (logx(t, 35.0) < 1.0 ? 1.0 : \
logx(t, 35.0))) : b)
#define SHP_VIS(b, t) (b * (1 - (sqrt(t) / 50)))
#define SHP_RNG(b, t) (t ? (b * (logx(t, 35.0) < 1.0 ? 1.0 : \
logx(t, 35.0))) : b)
#define SHP_FIR(b, t) (t ? (b * (logx(t, 60.0) < 1.0 ? 1.0 : \
logx(t, 60.0))) : b)
int
m_armor(struct mchrstr *mcp, int tech)
{
return SHP_DEF(mcp->m_armor, MAX(0, tech - mcp->m_tech));
}
int
m_speed(struct mchrstr *mcp, int tech)
{
return SHP_SPD(mcp->m_speed, MAX(0, tech - mcp->m_tech));
}
int
m_visib(struct mchrstr *mcp, int tech)
{
return SHP_VIS(mcp->m_visib, MAX(0, tech - mcp->m_tech));
}
int
m_frnge(struct mchrstr *mcp, int tech)
{
return SHP_RNG(mcp->m_frnge, MAX(0, tech - mcp->m_tech));
}
int
m_glim(struct mchrstr *mcp, int tech)
{
return SHP_FIR(mcp->m_glim, MAX(0, tech - mcp->m_tech));
}