Enlightenment CVS committal
Author : rephorm
Project : e17
Module : proto
Dir : e17/proto/e_phys/src/lib
Modified Files:
e_phys_world.c
Log Message:
fix some compiler warnings
add mesh test (i did this a while back, not sure that it works very well)
revert to using fixed time delta per tick instead of elapsed system time
(high cpu could cause timer calls to stack up and get called in rapid
succession resulting in excessive amounts of energy getting added into the
system)
===================================================================
RCS file: /cvs/e/e17/proto/e_phys/src/lib/e_phys_world.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -3 -r1.4 -r1.5
--- e_phys_world.c 27 Nov 2006 21:38:06 -0000 1.4
+++ e_phys_world.c 22 Mar 2007 17:04:32 -0000 1.5
@@ -45,13 +45,10 @@
e_phys_world_timer(void *data)
{
E_Phys_World *world;
- double now;
int i;
world = data;
- now = ecore_time_get();
- world->elapsed = now - world->time;
- world->time = now;
+ world->time = ecore_time_get();
e_phys_world_accumulate_forces(world);
e_phys_world_verlet_integrate(world);
for (i = 0; i < world->constraint_iter; i++)
@@ -87,7 +84,7 @@
{
Evas_List *l;
E_Phys_Particle *nearest = NULL;
- float distance;
+ float distance = 0.0;
for (l = world->particles; l; l = l->next)
@@ -155,8 +152,8 @@
tmp.y = p->cur.y;
//printf("force: (%0.2f, %0.2f)\n", p->force.x, p->force.y);
- p->cur.x = (2 - world->friction) * p->cur.x - (1 - world->friction) *
p->prev.x + p->force.x * world->elapsed * world->elapsed / p->m;
- p->cur.y = (2 - world->friction) * p->cur.y - (1 - world->friction)
*p->prev.y + p->force.y * world->elapsed * world->elapsed / p->m;
+ p->cur.x = (2 - world->friction) * p->cur.x - (1 - world->friction) *
p->prev.x + p->force.x * world->dt * world->dt / p->m;
+ p->cur.y = (2 - world->friction) * p->cur.y - (1 - world->friction)
*p->prev.y + p->force.y * world->dt * world->dt / p->m;
p->prev.x = tmp.x;
p->prev.y = tmp.y;
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