/* Updates the thing, especialy it's spite state direction and animation. */
void thing_update(Thing * self, double dt) {
/* Update the things layer if uit has no support under hit's feet and
it's level is greater than 1 and it's flying. */
if ((thing_z(self) > 1) && (self->hull)) {
if(!bumphull_support(self->hull)) {
/* No support, drop down. */
thing_z_(self, 1);
}
}
if(!flags_get(self->flags, THING_FLAGS_LOCK_DIRECTION)) {
int newdir;
BeVec vel = thing_v(self);
double magnitude = bevec_length(vel);
if (fabs(magnitude) > 0.00) {
/* could change dir if moving. TODO: take the old direction into
account for more control of facing when moving diagonally. */
if (vel.x < -0.01) {
newdir = SPRITE_WEST;
} else if (vel.x > 0.01) {
newdir = SPRITE_EAST;
} else if (vel.y < -0.01) {
newdir = SPRITE_NORTH;
} else if (vel.y > 0.01) {
newdir = SPRITE_SOUTH;
} else { /* Not much motion, don't change dir */
newdir = thing_direction(self);
}
/* Change direction. spritestate_pose will see if nothing changed and do nothing. in that case */
thing_poseifold_(self, SPRITE_STAND, SPRITE_WALK);
thing_direction_(self, newdir);
} else {
thing_poseifold_(self, SPRITE_WALK, SPRITE_STAND);
/* This won't work on attacking, etc. */
}
} else {
LOG("Thing direction locked!");
}
spritestate_update(&self->spritestate, dt);
}
/** Checks if an individual flag is set */
int bbwidget_flag_p(BBWidget * self, int flag) {
return flags_get(self->flags, flag);
}
/** Checks if an individual flag is set. */
int camera_flag(Camera * self, int flag) {
return flags_get(self->flags, flag);
}
/** Checks if an individual flag is set. */
int thing_flag(Thing * self, int flag) {
return flags_get(self->flags, flag);
}
