partial refactor continued

vacuum_gambit.p8

@@ -664,7 +664,7 @@ zap_e = bullet_base.new{
   height = 8
  },
  x_off = 1, -- how to position by ship
- y_off = 0,
+ y_off = 8,
  
  damage = 1,
  dx = 0,  -- px/frame
@@ -679,6 +679,7 @@ mknew(zap_e)
 zap_p = zap_e.new{
  sprite = 8,
  dy = 8,
+ y_off = 0,
  category = player_blt_cat,
 }
 mknew(zap_p)
@@ -752,7 +753,7 @@ blast_gun = gun_base.new{
 }
 mknew(blast_gun)
 
-protron = bullet_base.new{
+protron_e = bullet_base.new{
  --shape
  psprite = 23, --index of player ammo sprite
  esprite = 24, -- index of enemy ammo sprite
@@ -764,15 +765,25 @@ protron = bullet_base.new{
   width = 2,
   height = 2
  },
- center_x_off = 1, -- how to position by ship
- bottom_y_off = 4,
- top_y_off = 0,
+ x_off = 1, -- how to position by ship
+ y_off = 4,
  
  damage = 1,
  dx = 0,  -- px/frame
- dy = 3,
+ dy = -3,
+ category = enemy_blt_cat,
 }
-mknew(protron)
+mknew(protron_e)
+
+protron_p = protron_e.new{
+ sprite=23,
+ dy = 6,
+ y_off = 0,
+ category=player_blt_cat,
+}
+mknew(protron_p)
+
+-- XXX Bookmark for bullet refactor
 
 protron_gun = gun_base.new{
  icon = 25,