trim up draw costs a bit

way too slow

vacuum_gambit.p8

@@ -107,6 +107,22 @@ function linked_list:strip(f)
  self.tail = p
 end
 
+-- stripmove calls x:move() for
+-- each node, removing each node
+-- for which x:move() is true.
+function linked_list:stripmove()
+ local p, n = self, self.next
+ while n do
+  if n:move() then
+   p.next = n.next
+  else
+   p = n
+  end
+  n = n.next
+ end
+ self.tail = p
+end
+
 -- optimized special case -
 -- could be done with strip but
 -- this avoids extra function
@@ -185,14 +201,6 @@ function _update60()
  mode:update()
 end
 
-function call_f(x)
- return x:f()
-end
-
-function call_move(x)
- return x:move()
-end
-
 function ones(n)
  local ret = 0
  while n != 0 do
@@ -230,12 +238,11 @@ function updategame()
   interlude -= 1
  else
   current_wave = flotilla.new()
-  current_wave:load(0, 0, min(ones(waves_complete)\2, 4))
+  current_wave:load(rnd() > 0.5 and 7 or 0, 0, min(ones(waves_complete)\2, 4))
  end
  events:vore(new_events)
- events:strip(call_move)
- for _, lst in ipairs{intangibles_bg, eships} do
-  lst:strip(call_move)
+ for _, lst in ipairs{events, intangibles_bg, eships} do
+  lst:stripmove()
  end
 
 	-- eship collider will be used
@@ -250,25 +257,33 @@ function updategame()
    if(es:hitship(ps)) eship_collider:yoink(es)
   end
   ebullets:strip(function(eb)
-   -- loopify this when split moves implemented
-   if (eb:move()) return true
-   if (not collides(pbox, hurtbox(eb))) return
-   ps:hitbullet(eb)
-   return eb:hitship(ps)
+   local disposition
+   repeat
+    disposition=eb:step()
+    if collides(pbox, hurtbox(eb)) then
+     ps:hitbullet(eb)
+     if (eb:hitship(ps)) return true
+    end
+   until disposition
+   return disposition == "dead"
   end)
  else
-  ebullets:strip(call_move)
+  ebullets:strip(function(eb) repeat until eb:step() end)
  end
 
  pbullets:strip(function(pb)
-  if (pb:move()) return true
-  for es in eship_collider:iterate_collisions(hurtbox(pb)) do
-   if (es:hitbullet(pb)) eship_collider:yoink(es)
-   if (pb:hitship(es)) return true
-  end
+  local disposition
+  repeat
+   disposition=pb:step()
+   for es in eship_collider:iterate_collisions(hurtbox(pb)) do
+    if (es:hitbullet(pb)) eship_collider:yoink(es)
+    if (pb:hitship(es)) return true
+   end
+  until disposition
+  return disposition == "dead"
  end)
  
- intangibles_fg:strip(call_move)
+ intangibles_fg:stripmove()
 
 	if waves_complete == 32767 and not eships.next and not ebullets.next and not events.next then
 	  game_state = win
@@ -685,9 +700,10 @@ end
 --   default: die, return true.
 --   returns whether to delete
 --   the bullet
--- die -- on-removal event,
---   default no-op
-bullet_base = mknew{ }
+bullet_base = mknew{
+ steps=1,
+ current_step=0
+}
 
 gun_base = mknew{ 
  shoot_ready = -32768,
@@ -813,15 +829,29 @@ function bullet_base:hitship(_)
  return true
 end
 
-function bullet_base:move()
+function bullet_base:step()
+ self.current_step=(self.current_step+1)%self.steps
  self.x += self.dx
  self.y += self.dy
  if (self.f) self.f -= 1
- return (self.y > 130) or (self.y < -self.height*8) or (self.f and self.f < 0) or (self.x > 128) or (self.x < -self.width*8)
+ if ((self.y > 130) or (self.y < -self.height*8) or (self.f and self.f < 0) or (self.x > 128) or (self.x < -self.width*8)) return "dead"
+ if (self.current_step == 0) return "stop"
 end
 
+warmpal = {
+ [0]=0,1,2,1,2,1,5,10,2,4,9,3,13,5,8,9
+}
+
 function bullet_base:draw()
- spr(self.sprite, self.x, self.y, self.width, self.height)
+ local s,bx,by,dx,dy,w,h,st = self.sprite,self.x,self.y,self.dx,self.dy,self.width,self.height,self.steps
+ if st > 1 then
+  pal(warmpal)
+   for n=st-1,1,-1 do
+    spr(s, bx-n*dx, by-n*dy, w, h)
+   end
+  pal()
+ end
+ spr(s, bx, by, w, h)
 end
 
 function bullet_base:spawn_at(x, y)
@@ -885,44 +915,33 @@ end
 -->8
 -- bullets and guns
 
-zap_e = mknew(bullet_base.new{
+zap_p = mknew(bullet_base.new{
  --shape
- sprite = 9, --index of ammo sprite
- width = 1, --in 8x8 blocks
- height = 1,
+ sprite = 8, --index of ammo sprite
+ width = 0.25, --in 8x8 blocks
+ height = 0.25,
  hurt = { -- hurtbox - where this ship can be hit
   x_off = 0, -- upper left corner
   y_off = 0, -- relative to sprite
   width = 2,
-  height = 8
+  height = 2,
  },
  x_off = 1, -- how to position by ship
- y_off = 8,
- 
+ y_off = 0,
+ steps=4,
  damage = 1,
 
  hitship = const_fxn(true),
 
- category = enemy_blt_cat,
-})
-
-zap_p = mknew(zap_e.new{
- sprite = 8,
- y_off = 0,
  category = player_blt_cat,
 })
 
-zap_gun_e = mknew(gun_base.new{
- cooldown = 0x0.0020, -- frames between shots
- veloc = 4,
- munition = zap_e,
-})
-
-zap_gun_p = mknew(zap_gun_e.new{
+zap_gun_p = mknew(gun_base.new{
  icon = 19,
- munition = zap_p,
- veloc = 8,
+ cooldown = 0x0.0020, -- frames between shots
+ veloc = 2,
  aim = 0.25,
+ munition = zap_p,
  hdr = "mAIN gUN",
 })
 
@@ -1054,8 +1073,8 @@ rate: 2/sec
 vulcan_e = mknew(bullet_base.new{
  --shape
  sprite = 21,
- width = 1, --in 8x8 blocks
- height = 1,
+ width = 0.125, --in 8x8 blocks
+ height = 0.5,
  hurt = { -- hurtbox - where this ship can be hit
   x_off = 0, -- upper left corner
   y_off = 0, -- relative to sprite
@@ -1315,7 +1334,7 @@ chasey = mknew(ship_m.new{
  drag = 0.075,
 
  init = function(ship)
-  ship.main_gun=ship.main_gun or zap_gun_e.new{}
+  --ship.main_gun=ship.main_gun or zap_gun_e.new{}
  end
 })
 
@@ -2013,14 +2032,14 @@ function rearm_mode:update()
 end
 
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+00700700006d6500000000000cddddd00b33335009444420c00c000c0b33333000000000a8000000e88e2882e48e24823bbaabb3288aa8820000000000000000
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+0070070065666765000000000ddddd100b33355009444220c000000c0333335000000000a800000008888820048488203bbaabb3288aa8820000000000000000
+000000006506506500000000001111000b0b5050090920200c0000c00055550000000000a2000000008882000048420003bbbb30028888200000000000000000
+00000000650000650000000000000000000b50000009200000c0cc00000000000000000082000000000820000008200000333300002222000000000000000000
 0000000000065000000650000003b0000070070080000000700000000bb0000008800000000000000009200000000000cccccccd000650000000000000000000
 000000000067500000076500000370000005500080000000b0000000b76300008a920000000000009009200200000000c111111d006765000000000000000000
 00000000006d6500006d6500000b7000700660079000000030000000b663000089920000000550009994444200000000c111111d006d65000000000000000000
@@ -2211,8 +2230,11 @@ __gff__
 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000212060a0e01091119000000000000002232363a3e050d151d
 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 __map__
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