adjust menu renderer

not enough room to describe "fractions add up" -- maybe I can just fit
in the "remainder" to hint that it will be considered in future
upgrades?

vacuum_gambit.p8

@@ -126,8 +126,7 @@ end
 function _init()
  mode = game_mode
  init_blip_pals()
-	wipe_level()
-	primary_ship.main_gun = zap_gun_p.new()  -- redundant?
+	wipe_game()  -- redundant?
 	load_level(example_level_csv)
 	game_state = game
 	pal(2,129)
@@ -157,7 +156,7 @@ function init_hpcols()
  hpcols = hpcols_lut[min(primary_ship.maxhp,6)]
 end
 
-function wipe_level()
+function wipe_game()
  xpwhoosh = nil
  primary_ship = player.new()
  init_hpcols()
@@ -170,6 +169,8 @@ function wipe_level()
  intangibles_bg = linked_list.new()
  events = linked_list.new()
  new_events = linked_list.new()
+	primary_ship.main_gun = zap_gun_p.new()
+ primary_ship.main_gun:peel()
 end
 
 function _update60()
@@ -502,14 +503,14 @@ function ship_m:die()
   -- overage XP, min 100
   spawn_xp_at(cx, cy, 0, xp-0x0.018f)
   xp = 0x0.018f  -- dec 399
-  z += 1
+  z += 2
  end
  -- 100, 25, 5, 1
  for gsz in all{0x0.0064, 0x0.0019, 0x0.0005, 0x0.0001} do
   while xp >= gsz do
    spawn_xp_at(cx, cy, z, gsz)
    xp -= gsz
-   z += 1
+   z += 2
   end
  end
 end
@@ -611,30 +612,25 @@ end
 function ship_m:hitsomething(dmg)
  if (dmg <= 0) return false
  self.shield_refresh_ready = lframe + self.shieldpenalty
- if self.shield >= dmg then
+ if self.shield > 0 then
   self.shield -= dmg
-  self:ow(true)
+  if self.shield > 0 then
+   blip(self,12)
+  else
+   self.shield = 0
+   blip(self,7)
+  end
   return false
  end 
- dmg -= self.shield
- self.shield = 0
  self.hp -= dmg
  if self.hp < 0 then
   self:die()
   return true
  end
- self:ow(false)
+ blip(self, self.friendly and 8 or 7)
  return false
 end
 
-function ship_m:ow(shielded)
- if (shielded) then
-  blip(self,12,3)
-  return
- end
- blip(self, 7, 3)
-end
-
 function ship_m:refresh_shield()
  if (self.shield >= self.maxshield) return
  if (lframe < self.shield_refresh_ready) return
@@ -680,7 +676,13 @@ bullet_base = mknew{ }
 
 gun_base = mknew{ 
  shoot_ready = -32768,
- icon = 20
+ icon = 20,
+ ammobonus = 1,
+
+ -- fractional frames of
+ -- cooldown reduction from
+ -- upgrades, not yet applied
+ cd_remainder = 0,
 }
 
 -- gun_base subtypes are
@@ -689,6 +691,7 @@ gun_base = mknew{
 -- themselves to the player
 function gun_base:action()
  local item = self.new()
+ item:peel()
  item.ammo = item.maxammo
  if not primary_ship.special_guns then
   primary_ship.special_guns = {item}
@@ -697,6 +700,81 @@ function gun_base:action()
  end
 end
 
+-- make shot type unique so
+-- stat modifications do not
+-- damage base data
+function gun_base:peel()
+ self.munition = mknew(self.munition.new())
+end
+
+-- default firing behavior:
+-- single shot
+function gun_base:actually_shoot(x, y)
+ self.munition.new{}:spawn_at(x, y)
+end
+
+-- upgrade 
+function gun_base:small_upgrade_opts()
+ local ret = {
+  self:ammo_upgrade_opt(),
+  self:rate_upgrade_opt(),
+ }
+ local s = self.special_upgrade_opt
+ if (s) add(ret, s(self))
+ return ret
+end
+
+function gun_base:ammo_upgrade_opt()
+ local a=self.maxammo
+ local x=a\10+self.ammobonus
+ return {
+  icon=self.icon,
+  hdr=self.hdr,
+  body=[[--------AMMO
+
+ more shots
+ before you
+  run out.
+
+   is: ]]..tostr(a)..[[ 
+  add: ]]..tostr(x)..[[ 
+----------
+total: ]]..tostr(a+x),
+  action=function()
+   self.maxammo+=x
+   self.ammo+=x
+  end,
+ }
+end
+
+function gun_base:rate_upgrade_opt()
+ local c=self.cooldown<<16
+ local rawnewc=0.85*(c-self.cd_remainder)
+ local newc=ceil(rawnewc)
+ return {
+  icon=self.icon,
+  hdr=self.hdr,
+  body=[[--------RATE
+
+reduce delay
+between each
+ shot when
+  firing.
+
+   is: ]]..tostr(c)..[[f
+minus: ]]..tostr(c-newc)..[[f
+----------
+total: ]]..tostr(newc)..[[f
+
+remainder:
+  ]]..sub(tostr(newc-rawnewc),0,5),
+  action=function()
+   self.cooldown=newc>>16
+   self.cd_remainder=newc-rawnewc
+  end,
+ }
+end
+
 function bullet_base:hitship(_)
  self:die()
  return true
@@ -720,14 +798,6 @@ function bullet_base:draw()
  spr(self.sprite, self.x, self.y, self.width, self.height)
 end
 
--- An `actually_shoot` factory
--- for trivial guns
-function spawn_one(t)
- return function(gun, x, y)
-  t.new{}:spawn_at(x, y)
- end
-end
-
 function bullet_base:spawn_at(x, y)
  self.x = x - self.x_off
  self.y = y - self.y_off
@@ -780,11 +850,12 @@ zap_p = mknew(zap_e.new{
 
 zap_gun_e = mknew(gun_base.new{
  cooldown = 0x0.0020, -- frames between shots
- actually_shoot = spawn_one(zap_e),
+ munition = zap_e,
 })
 
 zap_gun_p = mknew(zap_gun_e.new{
- actually_shoot = spawn_one(zap_p),
+ icon = 19,
+ munition = zap_p,
  hdr = "mAIN gUN",
 })
 
@@ -843,12 +914,14 @@ blast_gun = mknew(gun_base.new{
  cooldown = 0x0.0078, -- 120 frames between shots
  ammo = 5,
  maxammo = 5,
- actually_shoot = spawn_one(blast),
+ munition = blast,
  hdr = "bLASTER",
- body= [[plasma orb
+ body= [[---------GUN
+
+ plasma orb
 cuts through
-enemies.
-slow.
+  enemies.
+   slow.
 
 ammo: 5
 rate: 1/2sec
@@ -917,9 +990,11 @@ protron_gun_p = mknew(protron_gun_e.new{
  maxammo = 20,
  cooldown = 0x0.0018,
  hdr = "pROTRON",
- body = [[spray shots
-in a dense
-arc.
+ body = [[---------GUN
+
+ spray shots
+ in a dense
+    arc.
 
 ammo: 20
 rate: 2/sec
@@ -978,9 +1053,10 @@ vulcan_gun_p = mknew(vulcan_gun_e.new{
  munition=vulcan_p,
  maxammo = 100,
  hdr = "vULCAN",
- body = [[rapid fire
-in a v
-shape.
+ body = [[---------GUN
+
+rapidly fire
+  in a v.
 
 ammo: 100
 rate: 20/sec
@@ -995,6 +1071,7 @@ firespark = split"9, 8, 2, 5, 1"
 smokespark = split"13, 13, 5, 5"
 
 player = mknew(ship_m.new{
+ friendly=true,
  --shape
  sprite = 1, --index of ship sprite
  size = 1, --all ships are square; how many 8x8 sprites?
@@ -1019,6 +1096,7 @@ player = mknew(ship_m.new{
  xptarget = 0x0.0004,
  last_xp_frame = 0,
  level = 1,
+ magnet = 10,
 
  -- gun
  main_gun = nil, -- assign at spawn time
@@ -1031,10 +1109,10 @@ player = mknew(ship_m.new{
  y=96,
  xmomentum = 0,
  ymomentum = 0,
- maxspd = 2.5, -- momentum cap
- thrust = 0.25, -- momentum added from button
+ maxspd = 1.5, -- momentum cap
+ thrust = 0.1875, -- momentum added from button
  ymin = 0, ymax = 120, -- stay on screen
- drag = 0.125, -- momentum lost per frame
+ drag = 0.0625, -- momentum lost per frame
  slip = false, -- does not slide down screen
  act = function(self)  -- fetch buttons
   local b,th = btn(),self.thrust
@@ -1061,6 +1139,110 @@ player = mknew(ship_m.new{
  end,
 })
 
+function player:small_upgrade_opts()
+ local cdr, pr = (self.shieldcooldown - 0x0.000f) / 8, (self.shieldpenalty - 0x0.003c) / 9
+ if (cdr == 0 and self.shieldcooldown > 0x0.000f) cdr = 0x0.0001
+ if (pr == 0 and self.shieldpenalty > 0x0.003c) pr = 0x0.0001
+
+ local ret = {{
+  icon=53,
+  hdr="hull",
+  body=[[--------SHIP
+
+survive more
+ unshielded
+    hits.
+
+    +2 hp]],
+  action=function()
+   self.maxhp += 2
+   self.hp += 2
+  end,
+ },{
+  icon=52,
+  hdr="capacity",
+  body=[[------SHIELD
+
+shield can
+absorb more
+hits before
+recharging.
+
+    +1 hp]],
+  action=function()
+   self.maxshield += 1
+   self.shield += 1
+  end,
+ },{
+  icon=1,
+  hdr="thrusters",
+  body=[[--------SHIP
+
+move faster,
+ steer more
+  sharply.]],
+ action=function()
+  --maxspd thrust drag
+  self.maxspd += 0.5
+  self.thrust += 0.0625
+  self.drag += 0.03125
+ end,
+ },{
+  icon=20,
+  hdr="magnet",
+  body=[[--------SHIP
+
+ pick up xp
+from further
+   away.]],
+  action=function ()
+   self.magnet += 2
+  end,
+ },
+ self.main_gun:rate_upgrade_opt(),
+}
+
+ if cdr > 0 then
+  add(ret, {
+   icon = 6,
+   hdr = "recharge",
+   body=[[------SHIELD
+
+shield will
+recharge at
+ a faster
+   pace.
+ 
+  ]] .. tostr(ceil(100 * cdr / self.shieldcooldown)) .. "% faster",
+   action = function()
+    self.shieldcooldown -= cdr
+   end
+  })
+ end
+
+ if pr > 0 then
+  add(ret, {
+   icon = 6,
+   hdr = "recovery",
+   body=[[------SHIELD
+
+ reduce the
+delay after
+a hit before
+shield will
+ start to
+ recharge.
+ 
+ ]] .. tostr(ceil(100 * pr / self.shieldpenalty)) .. "% shorter",
+   action = function()
+    self.shieldpenalty -= pr
+   end
+  })
+ end
+
+ return ret
+end
+
 frownie = mknew(ship_m.new{
  --shape
  sprite = 3, --index of ship sprite
@@ -1536,10 +1718,10 @@ function init_blip_pals()
  end
 end
 
-function blip(obj, col, frames)
+function blip(obj, col)
  obj.fx_pal = blip_pals[col]
  if (obj.___fx_pal_event) obj.___fx_pal_event:abort() 
- events:push_back(blip_fx.new{frames=frames, obj=obj})
+ events:push_back(blip_fx.new{frames=3, obj=obj})
 end
 
 bossspark = split"7,7,10,10,9,9,9,8,8,8,2,2,5,5"
@@ -1622,11 +1804,22 @@ function xp_gem:draw()
  )
 end
 
+function xp_gem:move()
+ 
+ if not primary_ship.dead and abs(self.x + 1 - primary_ship.x - primary_ship.hurt.x_off) <= primary_ship.magnet and abs(self.y + 1 - primary_ship.y - primary_ship.hurt.y_off) <= primary_ship.magnet then
+  if (self.x < primary_ship.x + 3) self.x += 1
+  if (self.x > primary_ship.x + 5) self.x -= 1
+  if (self.y < primary_ship.y + 3) self.y += 1
+  if (self.y > primary_ship.y + 5) self.y -= 1
+ end
+ return bullet_base.move(self)
+end
+
 -- todo: "magnetic" behavior
 -- when near player ship
 
 function xp_gem:hitship(ship)
- if (ship ~= primary_ship) return false
+ if (ship ~= primary_ship or primary_ship.dead) return false
  primary_ship.xp += self.val
  primary_ship.last_xp_frame = lframe
  return true
@@ -1698,18 +1891,13 @@ end
 
 -- ordinary upgrades
 function small_opts()
- return {{
-  icon=1,
-  hdr="placeholder",
-  body="placeholder",
-  action = function() end,
- },
- {
-  icon=1,
-  hdr="placeholder",
-  body="placeholder",
-  action = function() end,
- }}
+ -- todo: include gun opts
+ if(not primary_ship.special_guns) return pick(primary_ship:small_upgrade_opts(), 2)
+ local opts = {rnd(primary_ship:small_upgrade_opts())}
+ for g in all(primary_ship.special_guns) do
+  add(opts, rnd(g:small_upgrade_opts()))
+ end
+ return pick(opts, 2)
 end
 
 -->8
@@ -1718,7 +1906,7 @@ end
 rearm_mode = mknew{
  sel=1,
  bfm=1,
- crt_frm = 1,
+ crt_frm = 0,
  pos=-1,
  init=function(this)
   poke(0x5f5c, 255) --no btnp repeat
@@ -1733,7 +1921,7 @@ function rearm_mode:glow_box(x0, y0, x1, y1, c, cf)
   i -= 1
   rect(x0+i,y0+i,x1-i,y1-i,v)
  end
- fillp(crt[self.crt_frm&0xff])
+ fillp(crt[1+(self.crt_frm&7)])
  rectfill(x0+4, y0+4, x1-4, y1-4, cf)
  fillp()
 end
@@ -1765,7 +1953,7 @@ end
 
 function rearm_mode:draw_option(id)
  local rec = self.options[id]
- self:glow_box(0,0,55,100,self:frame_col(self.sel == id),1)
+ self:glow_box(0,0,55,101,self:frame_col(self.sel == id),1)
  spr(rec.icon,5, 5)
  print(rec.hdr, 13, 8, 7)
  print(rec.body, 5, 15, 6)
@@ -1801,9 +1989,9 @@ function rearm_mode:draw()
  camera(frac * -128 + (1-frac) * -56, 0)
  self:draw_option(2)
  camera(0, -28 * frac)
- self:glow_box(0,101,111,127,self:frame_col(self.sel < 0),1)
+ self:glow_box(0,102,111,127,self:frame_col(self.sel < 0),1)
  spr(96,15,107,4,2)
- print("full ammo\nfull shield\n+50% health",54, 106, 6)
+ print("full ammo\nfull shield\n+50% health",54, 107, 6)
 end
 
 function rearm_mode:update_pos()
@@ -1823,6 +2011,7 @@ function rearm_mode:update_pos()
 end
 
 function rearm_mode:update()
+ self.crt_frm+=0.25
  self:update_pos()
  if self.pos > 1 then
   mode = game_mode
@@ -1877,14 +2066,14 @@ __gfx__
 0070070065666765000000000ddddd100b33355009444220c000000c03333350b7000000a800000008888820048488203bbaabb3288aa8820000000000000000
 000000006506506500000000001111000b0b5050090920200c0000c00055550037000000a2000000008882000048420003bbbb30028888200000000000000000
 00000000650000650000000000000000000b50000009200000c0cc00000000003b00000082000000000820000008200000333300002222000000000000000000
-00000000000650000006500000000000b000000b80000000700000000bb0000008800000000000000009200000000000cccccccd000650000000000000000000
-0000000000675000000765000000000000bbbb0080000000b0000000b76300008a920000000000009009200200000000c111111d006765000000000000000000
-00000000006d6500006d6500000000000b0000b09000000030000000b663000089920000000550009994444200000000c111111d006d65000000000000000000
-00000000067c6650067c6650000000000b0bb0b0a000000030000000033000000220000000576d009446544200000000c111111d067c66500000000000000000
-00000000067d6650067d6650000000000b0bb0b00000000000000000000000000000000000566d009244442200000000c111111d067d66500000000000000000
-000000005666657576667650000000000b0000b000000000000000000000000000000000000dd0009092220200000000c111111d656667650000000000000000
-0000000056565066665656500000000000bbbb0000000000000000000000000000000000000000000090020000000000c111111d650650650000000000000000
-00000000565000566500065000000000b000000b000000000000000000000000000000000000000000a00a0000000000cddddddd650000650000000000000000
+0000000000065000000650000003b0000070070080000000700000000bb0000008800000000000000009200000000000cccccccd000650000000000000000000
+000000000067500000076500000370000005500080000000b0000000b76300008a920000000000009009200200000000c111111d006765000000000000000000
+00000000006d6500006d6500000b7000700660079000000030000000b663000089920000000550009994444200000000c111111d006d65000000000000000000
+00000000067c6650067c6650000b7000056ccd50a000000030000000033000000220000000576d009446544200000000c111111d067c66500000000000000000
+00000000067d6650067d6650000b7000056ccd500000000000000000000000000000000000566d009244442200000000c111111d067d66500000000000000000
+000000005666657576667650000b7000700dd00700000000000000000000000000000000000dd0009092220200000000c111111d656667650000000000000000
+000000005656506666565650000370000005500000000000000000000000000000000000000000000090020000000000c111111d650650650000000000000000
+0000000056500056650006500003b00000700700000000000000000000000000000000000000000000a00a0000000000cddddddd650000650000000000000000
 060007000600070006600770766c777c0000000000a0008000000000000000000000000000000000000000000000000000000000000000000000000000000000
 6cd07cd06cd07cd06ccd7ccd6ccd7ccd000000000090008000000000000000000000000000000000000000000000000000000000000000000000000000000000
 0d000d006cd07cd06ccd7ccd6ccd7ccd0000000000800a0000000000000000000000000000000000000000000000000000000000000000000000000000000000