Scripts/background/bg_objects/renda.lua

@@ -1,122 +1,74 @@
 -- YataiDON-HSS override of PyTaikoGreen/background/bg_objects/renda.lua: Renda1 origin from x2[1]/y2[1]; frame from frame_count
+-- The three roll effects, replayed the way the original places them: a piece is
+-- spawned somewhere over the LOWER backdrop (x 6..1100, y 540..1020 -- the region
+-- the original's spawn box covers below the lane) and flies for 120 frames at
+-- 60 Hz along its movie's own path:
+--   renda_0 birds     (chidori)  +17.3 px/frame right, -10.9 px/frame up
+--   renda_1 shuriken  (shuriken) +17.3 px/frame right, level, spinning -6 deg/frame
+--   renda_2 arrow     (hamaya)   +13.1 px/frame right, -13.8 px/frame up
+-- They are drawn before the dancers (see background.lua), as the original does.
+local FRAME_MS   = 1000.0 / 60.0
+local LIFE       = 120
+local SPAWN_X0, SPAWN_X1 = 6, 1100
+local SPAWN_Y0, SPAWN_Y1 = 540, 1020
+
 local BaseRenda = {}
 BaseRenda.__index = BaseRenda
 
-function BaseRenda.new(index)
+function BaseRenda.new(index, vx, vy, spin)
     local self = setmetatable({}, BaseRenda)
     self.name = "renda_" .. index
-    local screen_width = tex.get_screen_width()
-    local screen_scale = tex.get_screen_scale()
-    self.hori_move = anim.move(1500 * screen_scale, {total_distance = screen_width})
-    self.hori_move:start()
+    self.vx, self.vy, self.spin = vx, vy, spin or 0
+    self.x0 = math.random(SPAWN_X0, SPAWN_X1)
+    self.y0 = math.random(SPAWN_Y0, SPAWN_Y1)
+    self.frames = 0
+    self.last_ms = nil
+    local info = tex.get_texture_info("renda", self.name)
+    self.frame = math.random(0, ((info and info.frame_count) or 1) - 1)
+    self.w = (info and info.x2 and info.x2[1]) or 0
+    self.h = (info and info.y2 and info.y2[1]) or 0
+    self._id = tex.get_id("renda", self.name)  -- nil = missing (ROUND 60: id 0 is valid)
     return self
 end
 
 function BaseRenda:update(current_time_ms)
-    self.hori_move:update(current_time_ms)
+    if self.last_ms then
+        local dt = current_time_ms - self.last_ms
+        if dt > 0 and dt < 500 then self.frames = self.frames + dt / FRAME_MS end
+    end
+    self.last_ms = current_time_ms
+end
+
+function BaseRenda:finished()
+    return self.frames >= LIFE
+end
+
+function BaseRenda:draw(y_offset)
+    if not self._id or self:finished() then return end
+    local f = self.frames
+    local cx = self.x0 + self.vx * f
+    local cy = self.y0 + self.vy * f + (y_offset or 0)
+    if self.spin ~= 0 then
+        tex.draw_texture(self._id, {
+            frame = self.frame, x = cx, y = cy,
+            origin = { self.w * 0.5, self.h * 0.5 }, rotation = self.spin * f,
+        })
+    else
+        tex.draw_texture(self._id, { frame = self.frame, x = cx - self.w * 0.5, y = cy - self.h * 0.5 })
+    end
 end
 
 local Renda0 = setmetatable({}, {__index = BaseRenda})
 Renda0.__index = Renda0
-
-function Renda0.new(index)
-    local self = setmetatable({}, Renda0)
-    local base = BaseRenda.new(index)
-    for k, v in pairs(base) do self[k] = v end
-    local screen_scale = tex.get_screen_scale()
-    local screen_height = tex.get_screen_height()
-    self.vert_move = anim.move(1500 * screen_scale, {total_distance = screen_height + (80 * screen_scale)})
-    self.vert_move:start()
-    local tex_info = tex.get_texture_info("renda", self.name)
-    local num_frames = (tex_info and tex_info.frame_count) or 1
-    self.frame = math.random(0, num_frames - 1)
-    self.x = math.random(0, math.floor(500 * screen_scale))
-    self.y = math.random(0, math.floor(20 * screen_scale))
-    self._id = tex.get_id("renda", self.name)  -- nil = missing (ROUND 60: id 0 is valid)
-    return self
-end
-
-function Renda0:update(current_time_ms)
-    BaseRenda.update(self, current_time_ms)
-    self.vert_move:update(current_time_ms)
-end
-
-function Renda0:draw(y_offset)
-    -- ROUND 60 (r60-collab-fix-all): fail soft when the collab ships no renda art
-    if not self._id then return end
-    tex.draw_texture(self._id, {
-        frame = self.frame,
-        x = self.hori_move.attribute + self.x,
-        y = -self.vert_move.attribute + self.y + (y_offset or 0)
-    })
-end
+function Renda0.new(index) return setmetatable(BaseRenda.new(index, 17.3, -10.9), Renda0) end
 
 local Renda1 = setmetatable({}, {__index = BaseRenda})
 Renda1.__index = Renda1
-
-function Renda1.new(index)
-    local self = setmetatable({}, Renda1)
-    local base = BaseRenda.new(index)
-    for k, v in pairs(base) do self[k] = v end
-    local screen_scale = tex.get_screen_scale()
-    local screen_height = tex.get_screen_height()
-    local tex_info = tex.get_texture_info("renda", self.name)
-    self.frame = math.random(0, ((tex_info and tex_info.frame_count) or 6) - 1)
-    self.y = math.random(0, math.floor(200 * screen_scale))
-    self.rotate = anim.move(800 * screen_scale, {total_distance = math.floor(screen_height / 2), loop = true})
-    self.rotate:start()
-    self.origin = {(tex_info and tex_info.x2[1] or 0) / 2, (tex_info and tex_info.y2[1] or 0) / 2}
-    self._id = tex.get_id("renda", self.name)  -- nil = missing (ROUND 60: id 0 is valid)
-    return self
-end
-
-function Renda1:update(current_time_ms)
-    BaseRenda.update(self, current_time_ms)
-    self.rotate:update(current_time_ms)
-end
-
-function Renda1:draw(y_offset)
-    -- ROUND 60 (r60-collab-fix-all): fail soft when the collab ships no renda art
-    if not self._id then return end
-    tex.draw_texture(self._id, {
-        frame = self.frame,
-        x = self.hori_move.attribute + self.origin[1],
-        y = self.y + self.origin[2] + (y_offset or 0),
-        origin = self.origin,
-        rotation = self.rotate.attribute
-    })
-end
+function Renda1.new(index) return setmetatable(BaseRenda.new(index, 17.3, 0, -6), Renda1) end
 
 local Renda2 = setmetatable({}, {__index = BaseRenda})
 Renda2.__index = Renda2
-
-function Renda2.new(index)
-    local self = setmetatable({}, Renda2)
-    local base = BaseRenda.new(index)
-    for k, v in pairs(base) do self[k] = v end
-    local screen_scale = tex.get_screen_scale()
-    local screen_height = tex.get_screen_height()
-    self.vert_move = anim.move(1500, {total_distance = screen_height + (80 * screen_scale)})
-    self.vert_move:start()
-    self.x = math.random(0, math.floor(500 * screen_scale))
-    self.y = math.random(0, math.floor(20 * screen_scale))
-    self._id = tex.get_id("renda", self.name)  -- nil = missing (ROUND 60: id 0 is valid)
-    return self
-end
-
-function Renda2:update(current_time_ms)
-    BaseRenda.update(self, current_time_ms)
-    self.vert_move:update(current_time_ms)
-end
-
-function Renda2:draw(y_offset)
-    -- ROUND 60 (r60-collab-fix-all): fail soft when the collab ships no renda art
-    if not self._id then return end
-    tex.draw_texture(self._id, {
-        x = self.hori_move.attribute + self.x,
-        y = -self.vert_move.attribute + self.y + (y_offset or 0)
-    })
-end
+function Renda2.new(index) return setmetatable(BaseRenda.new(index, 13.1, -13.8), Renda2) end
 
 -- ROUND 52 (r52-lua-divergence-fixes): the cabinet's renda effect is a FIXED
 -- round-robin pool, not an unbounded per-hit spawner.  the reference build
@@ -136,7 +88,9 @@ end
 -- is still per-hit -- there is no per-frame "roll active" Lua signal -- so a
 -- slow roll spawns fewer than the cabinet's one-per-frame; the cap and the
 -- steady-state density now match.)
-local POOL_SIZE = 25
+-- Observed on the original: about ten pieces are ever live at once -- the oldest
+-- is dropped as soon as an eleventh starts, before it leaves the screen.
+local POOL_SIZE = 10
 
 local RendaController = {}
 RendaController.__index = RendaController
@@ -174,7 +128,7 @@ function RendaController:update(current_time_ms)
         local r = self.rendas[slot]
         if r then
             r:update(current_time_ms)
-            if r.hori_move.is_finished then
+            if r:finished() then
                 self.rendas[slot] = nil
             end
         end