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#include <vecmath.h>
#include <physics.h>
#include <stdlib.h>
#include "dat.h"
#define POOL_SIZE 2048
Body phxbodypool[POOL_SIZE];
int phxbodypoolsize;
static BodyID allocbody(void);
BodyID
phxnew(BodyType type)
{
BodyID b;
if((b = allocbody()) == -1)
return b;
phxbodypool[b].type = type;
return b;
}
void
phxdel(BodyID id)
{
phxbodypool[id].active = 0;
}
void
phxsetpos(BodyID b, float x, float y)
{
vec2_dup(phxbodypool[b].pos, (vec2){ x, y });
}
void
phxsetsize(BodyID b, float w, float h)
{
vec2_dup(phxbodypool[b].size, (vec2){ w, h });
}
void
phxgetpos(BodyID b, float p[2])
{
vec2_dup(p, phxbodypool[b].pos);
}
void
phxgetsize(BodyID b, float p[2])
{
vec2_dup(p, phxbodypool[b].size);
}
void
phxapplyaccel(BodyID b, float a[2])
{
vec2_add(phxbodypool[b].accel, phxbodypool[b].accel, a);
}
BodyID
allocbody(void)
{
int i;
for(i = 0; i < phxbodypoolsize; i++) {
if(!phxbodypool[i].active)
break;
}
if(i >= phxbodypoolsize) {
if(phxbodypoolsize == POOL_SIZE)
return -1;
i = phxbodypoolsize++;
}
phxbodypool[i].active = 1;
return i;
}
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