methodize ship stuff, convert remaining add calls

updatedshmup.p8

@@ -176,7 +176,7 @@ end
 function updategame()
  leveldone = level_frame()
 	new_events = new_linked()
- events:strip(call_f)
+ events:strip(call_move)
  events:vore(new_events)
  for _, lst in ipairs{intangibles_bg, pships, eships, pbullets, ebullets} do
   lst:strip(call_move)
@@ -239,7 +239,7 @@ function updategame()
  
  intangibles_fg:strip(call_move)
 
-	if leveldone and ((#eships + #ebullets + #events) == 0) then
+	if leveldone and not eships.next and not ebullets.next and not events.next then
 	  state = win
 	end
 	if #pships == 0 then
@@ -580,7 +580,7 @@ function spawn_spewy_at(x, y)
 	 end,
 	}
 	setmetatable(spewy, frownie_t)
-	add(eships, spewy)
+ eships:push_back(spewy)
 	return spewy
 end
 
@@ -627,7 +627,7 @@ function spawn_chasey_at(x, y)
   main_gun = new_gun_of(zap_gun_t, true)
  }
  setmetatable(c, chasey_t)
- add(eships, c) 
+ eships:push_back(c)
  return c
 end
 
@@ -660,7 +660,7 @@ function spawn_xl_chasey_at(x, y)
   end,
  }
  setmetatable(c, chasey_t)
- add(eships, c)
+ eships:push_back(c)
  return c
 end
 -->8
@@ -694,50 +694,50 @@ ship_t = {
   __index = ship_m,
 }
 
-function ship_m.die(s)
- s.dead = true
- if (s.hp <= 0) boom(s.x+s.size*4, s.y+s.size*4,12*s.size, s.boss)
+function ship_m:die()
+ self.dead = true
+ if (self.hp <= 0) boom(self.x+self.size*4, self.y+self.size*4,12*self.size, self.boss)
 end
 
-function ship_m.move(ship)
- ship:refresh_shield()
- ship.power = min(ship.max_power, ship.power + ship.generator)
- butt = ship:grab_butts()
- if (butt[5] > 0) ship:maybe_shoot(ship.main_gun)
- if (butt[4] > 0) ship:maybe_shoot(ship.special_gun)
- if (butt[0]-butt[1] ~= 0 or butt[2]-butt[3] ~= 0) spark(ship.sparks, ship.x + 4*ship.size, ship.y + 4*ship.size, butt, ship.thrust, ship.sparkodds)
- ship.xmomentum += (ship.thrust * butt[1]) - (ship.thrust * butt[0])
- ship.ymomentum += (ship.thrust * butt[3]) - (ship.thrust * butt[2])
- ship.xmomentum = mid(-ship.maxspd, ship.maxspd, ship.xmomentum)
- ship.ymomentum = mid(-ship.maxspd, ship.maxspd, ship.ymomentum)
+function ship_m:move()
+ self:refresh_shield()
+ self.power = min(self.max_power, self.power + self.generator)
+ butt = self:grab_butts()
+ if (butt[5] > 0) self:maybe_shoot(self.main_gun)
+ if (butt[4] > 0) self:maybe_shoot(self.special_gun)
+ if (butt[0]-butt[1] ~= 0 or butt[2]-butt[3] ~= 0) spark(self.sparks, self.x + 4*self.size, self.y + 4*self.size, butt, self.thrust, self.sparkodds)
+ self.xmomentum += (self.thrust * butt[1]) - (self.thrust * butt[0])
+ self.ymomentum += (self.thrust * butt[3]) - (self.thrust * butt[2])
+ self.xmomentum = mid(-self.maxspd, self.maxspd, self.xmomentum)
+ self.ymomentum = mid(-self.maxspd, self.maxspd, self.ymomentum)
  
- ship.x += ship.xmomentum
- ship.y += ship.ymomentum
+ self.x += self.xmomentum
+ self.y += self.ymomentum
  
- if ship == primary_ship then
-  ship.x = mid(0, 112 - 8 * ship.size, ship.x)
-  ship.y = mid(0, 128 - 8 * ship.size, ship.y)
+ if self == primary_self then
+  self.x = mid(0, 112 - 8 * self.size, self.x)
+  self.y = mid(0, 128 - 8 * self.size, self.y)
  end
  
  --friction
- local d = ship.drag
- ship.xmomentum -= mid(d, -d, ship.xmomentum)
- ship.ymomentum -= mid(d, -d, ship.ymomentum)
+ local d = self.drag
+ self.xmomentum -= mid(d, -d, self.xmomentum)
+ self.ymomentum -= mid(d, -d, self.ymomentum)
  
  -- "scrolling" behavior
- if ship.slip then
-  ship.y += scrollrate
-  if ship.y >= 128 then
-   ship:die()
+ if self.slip then
+  self.y += scrollrate
+  if self.y >= 128 then
+   self:die()
    return true
   end
  end
  return false
 end
 
-function ship_m.draw(ship)
- if(ship.fx_pal) pal(ship.fx_pal)
-	spr(ship.sprite, ship.x, ship.y, ship.size, ship.size)
+function ship_m:draw()
+ if(self.fx_pal) pal(self.fx_pal)
+	spr(self.sprite, self.x, self.y, self.size, self.size)
 	pal()
 end
 
@@ -940,7 +940,7 @@ function spawn_rnd_x(mt)
   y = -(mt.__index.size * 8 - 1)
  }
  setmetatable(s, mt)
- add(eships, s)
+ eships:push_back(s)
  return s
 end
 
@@ -957,7 +957,7 @@ function spawn_blocking_rnd_x(mt)
   end
  }
  setmetatable(s, mt)
- add(eships, s)
+ eships:push_back(s)
  return s
 end
 
@@ -1037,13 +1037,13 @@ function spawn_blocking_boss_chasey()
  end
 
  local nextspawn = lframe + 120
- add(events, function()
+ events:push_back{move=function()
   if lframe >= nextspawn then
    helpers[flr(rnd(#helpers))+1]()
    nextspawn += 60
   end
   return c.dead
- end)
+ end}
  
  return c
 end
@@ -1080,13 +1080,13 @@ example_level = {
  [500]=function()
   local tnext = lframe
   local remain = 20
-  add(events, function()
+  events:push_back{move=function()
    if (lframe < tnext) return false
    spawn_blocking_blocky()
    tnext = lframe + 12
    remain -= 1
    return (remain <= 0) 
-  end)
+  end}
  end,
  [501]=spawn_bonus_frownie,
  [620]=spawn_blocking_blocky,
@@ -1180,15 +1180,14 @@ blast = {
  hitship = function(self, _)
   self.damage = 0
   local wait = 2
-  e = function()
+  events:push_back{move=function()
    wait -= 1
    if wait <= 0 then
     self.damage = 4
     return true
    end
    return false
-  end
-  add(events, e)
+  end}
  end
 }
 blast_t = {
@@ -1382,10 +1381,10 @@ function bullet_base:spawn_at(x, y)
   self.dx *= self.enemyspd
   self.dy *= self.enemyspd
   self.y = y + self.top_y_off
-  add(ebullets, self)
+  ebullets:push_back(self)
  else
   self.y = y - (8 * self.height) + self.bottom_y_off
-  add(pbullets, self)
+  pbullets:push_back(self)
  end
 end
 
@@ -1829,36 +1828,30 @@ weird coding conventions
 -->8
 -- standard events
 
-blip_fx = {
- abort = function(self)
-  self.cancel = true
- end
-}
+blip_fx = {}
 
-blip_fx_t = {
- __index = blink_fx,
- __call = function(self)
-  if (self.cancel) return true
-  self.frames -= 1
-  if self.frames < 0 then
-   self.obj.fx_pal = nil
-   return true
-  end
-  return false
+function blip_fx:move()
+ if (self.cancel) return true
+ self.frames -= 1
+ if self.frames < 0 then
+  self.obj.fx_pal = nil
+  return true
  end
-}
+ return false
+end
+
+function blip_fx:abort()
+ self.cancel=true
+end
+
+mknew(blip_fx)
 
 function blip(obj, col, frames)
  local p = {[0]=0}
  obj.fx_pal = p
  for i=1,15 do p[i]=col end
  if (obj.___fx_pal_event) obj.___fx_pal_event:abort() 
- local e = {
-  frames = frames,
-  obj = obj
- }
- setmetatable(e, blip_fx_t)
- add(events, e)
+ events:push_back(blip_fx:new{frames=frames, obj=obj})
 end
 
 bossspark = split"7,7,10,10,9,9,9,8,8,8,2,2,5,5"
@@ -1883,7 +1876,8 @@ end
 function spark(sprs, x, y, butts, thrust, odds, fg)
  if (sprs==nil or flr(rnd(odds)) ~= 0) return
  thrust *= 2.5
- add(fg and intangibles_fg or intangibles_bg, {
+ local target = fg and intangibles_fg or intangibles_bg
+ target:push_back{
   x = x + rnd(4) - 2,
   y = y + rnd(4) - 2,
   sprs = sprs,
@@ -1901,7 +1895,7 @@ function spark(sprs, x, y, butts, thrust, odds, fg)
    self.dx -= mid(0.05,-0.05, self.dx)
    self.dy -= mid(0.05,-0.05, self.dy)
   end
- })
+ }
 end
 -->8
 -- powerups