maybe the rest of the refactor?

vacuum_gambit.p8

@@ -123,7 +123,7 @@ end
 function _init()
  init_blip_pals()
 	wipe_level()
-	primary_ship.main_gun = zap_gun.new()
+	primary_ship.main_gun = zap_gun_p.new()  -- redundant?
 	load_level(example_level_csv)
 	state = game
 	pal(2,129)
@@ -755,8 +755,7 @@ mknew(blast_gun)
 
 protron_e = bullet_base.new{
  --shape
- psprite = 23, --index of player ammo sprite
- esprite = 24, -- index of enemy ammo sprite
+ sprite - 24,
  width = 1, --in 8x8 blocks
  height = 1,
  hurt = { -- hurtbox - where this ship can be hit
@@ -769,62 +768,58 @@ protron_e = bullet_base.new{
  y_off = 4,
  
  damage = 1,
- dx = 0,  -- px/frame
- dy = -3,
+ dym = -0.5, -- gun sets dy;
+             -- this is mult
  category = enemy_blt_cat,
 }
 mknew(protron_e)
 
 protron_p = protron_e.new{
  sprite=23,
- dy = 6,
+ dym = 1,
  y_off = 0,
  category=player_blt_cat,
 }
 mknew(protron_p)
 
--- XXX Bookmark for bullet refactor
-
-protron_gun = gun_base.new{
+protron_gun_e = gun_base.new{
  icon = 25,
- enemy = false,
  power = 60,
  cooldown = 0x0.000f, -- frames between shots
  ammo = nil,
  maxammo = nil,
- actually_shoot = function(self, x, y)
-  local sprite = protron.psprite
-  if (self.enemy) sprite=protron.esprite
-  for i=1,3 do
-   local b = protron.new{
-    enemy=self.enemy,
-    sprite=sprite,
-    dx = i,
-    dy = 4-i
-   }
-   b:spawn_at(x,y)
-   local b2 = protron.new{
-    enemy=self.enemy,
-    sprite=sprite,
-    dx = -i,
-    dy = 4-i
-   }
-   b2:spawn_at(x,y)
-  end
-  local bup = protron.new{
-   enemy=self.enemy,
-   sprite=sprite,
-   dy=4
-  }
-  bup:spawn_at(x,y)
- end
+ munition = protron_e
 }
-mknew(protron_gun)
+mknew(protron_gun_e)
 
-vulcan = bullet_base.new{
+function protron_gun_e:actually_shoot(x, y)
+ local m = self.munition.dym
+ for i=1,3 do
+  local b = self.munition.new{
+   dx = i*m,
+   dy = (4-i)*m,
+  }
+  b:spawn_at(x,y)
+  local b2 = self.munition.new{
+   dx = -i*m,
+   dy = (4-i)*m,
+  }
+  b2:spawn_at(x,y)
+ end
+ local bup = self.munition.new{
+  dy=4*m
+ }
+ bup:spawn_at(x,y)
+end
+
+protron_gun_p = protron_gun_e.new{
+ munition = protron_p,
+}
+mknew(protron_gun_p)
+
+vulcan_e = bullet_base.new{
  --shape
- psprite = 22, --index of player ammo sprite
- esprite = 21, -- index of enemy ammo sprite
+ sprite = 21,
  width = 1, --in 8x8 blocks
  height = 1,
  hurt = { -- hurtbox - where this ship can be hit
@@ -833,31 +828,34 @@ vulcan = bullet_base.new{
   width = 1,
   height = 4
  },
- center_x_off = 0.5, -- how to position by ship
- bottom_y_off = 4,
- top_y_off = 0,
+ x_off = 0.5, -- how to position by ship
+ y_off = 0,
  
  damage = 0.5,
- dx = 0,  -- px/frame
- dy = 4,
+ -- dx from gun
+ dy = -2,
 }
-mknew(vulcan)
+mknew(vulcan_e)
 
-vulcan_gun = gun_base.new{
+vulcan_p = vulcan_e.new{
+ sprite=22,
+ y_off = 4,
+}
+mknew(vulcan_e)
+
+vulcan_gun_e = gun_base.new{
  icon = 37,
  enemy = false,
  power = 8,
  cooldown = 0x0.0002, -- frames between shots
  ammo = nil,
  maxammo = nil,
+ munition=vulcan_p,
  dxs = {0.35, -0.35, -0.7, 0.7, 0.35, -0.35},
  xoffs = {1, 0, -1, 1, 0, -1},
  dxidx = 1,
  actually_shoot = function(self, x, y)
-  local sprite = self.enemy and vulcan.esprite or vulcan.psprite
-  local b = vulcan.new{
-   enemy=self.enemy,
-   sprite=sprite,
+  local b = self.munition.new{
    dx = self.dxs[self.dxidx],
   }
   b:spawn_at(self.xoffs[self.dxidx]+x,y)
@@ -865,7 +863,11 @@ vulcan_gun = gun_base.new{
   if (self.dxidx > #self.dxs) self.dxidx = 1
  end
 }
-mknew(vulcan_gun)
+mknew(vulcan_gun_e)
+
+vulcan_gun_p = vulcan_gun_e.new{
+ munition=vulcan_p,
+}
 
 -->8
 --ships, including player
@@ -927,7 +929,7 @@ player = ship_m.new{
 }
 mknew(player,
  function(p)
-  p.main_gun = zap_gun.new()
+  p.main_gun = zap_gun_p.new()
   -- ONE HIT MODE
   --
   -- p.hp = 0
@@ -1012,7 +1014,7 @@ spewy = frownie.new{
  end
 }
 mknew(spewy, function(ship)
- ship.main_gun=ship.main_gun or protron_gun.new{enemy=true}
+ ship.main_gun=ship.main_gun or protron_gun_e.new{enemy=true}
 end)
 
 chasey = ship_m.new{
@@ -1040,7 +1042,7 @@ chasey = ship_m.new{
  slip = true,
 }
 mknew(chasey, function(ship)
- ship.main_gun=ship.main_gun or zap_gun.new{enemy=true}
+ ship.main_gun=ship.main_gun or zap_gun_e.new{}
 end)
 
 function chasey:act()
@@ -1074,7 +1076,7 @@ xl_chasey=chasey.new{
  end,
 }
 mknew(xl_chasey, function(ship)
- ship.main_gun=ship.main_gun or zap_gun.new{enemy=true}
+ ship.main_gun=ship.main_gun or zap_gun_e.new{}
 end)
 -->8
 -- collisions
@@ -1283,9 +1285,9 @@ end
 
 function spawn_bonus_vulcan_chasey()
  local c = spawn_chasey()
- c.main_gun=vulcan_gun.new{enemy=true}
+ c.main_gun=vulcan_gun_e.new{enemy=true}
  c.die = function(self)
-  spawn_main_gun_at(self.x-1, self.y-1, vulcan_gun)
+  spawn_main_gun_at(self.x-1, self.y-1, vulcan_gun_p)
   chasey.die(self)
  end
  c.sprite=4
@@ -1388,7 +1390,7 @@ example_level_csv=[[1,spawn_frownie
 310,spawn_blocking_blocky
 310,spawn_blocking_blocky
 311,spawn_frownie
-350,spawn_main_gun_at,70,-11,protron_gun
+350,spawn_main_gun_at,70,-11,protron_gun_p
 401,spawn_frownie
 420,spawn_blocking_frownie
 430,spawn_bonus_vulcan_chasey
@@ -1498,8 +1500,9 @@ bullets
   shots much easier to dodge
 * damage - damage per hit;
   used by ships
-* psprite, esprite - index of
-  player or enemy sprite.
+* sprite - sprite index.
+* x_off, y_off - renamed for
+  the next two vars. may revert
 * center_off_x - the horizontal
   centerpoint of the bullet,
   for positioning when firing.