Framework for custom line clear animations added

Colored fadeout is the default

scene/game.lua

@@ -83,6 +83,7 @@ function GameScene:render()
 	end
 
 	self.game:drawGrid()
+	if self.game.lcd > 0 then self.game:drawLineClearAnimation() end
 	self.game:drawPiece()
 	self.game:drawNextQueue(self.ruleset)
 	self.game:drawScoringInfo()

tetris/components/grid.lua

@@ -111,18 +111,24 @@ function Grid:getClearedRowCount()
 end
 
 function Grid:markClearedRows()
+	local block_table = {}
 	for row = 1, self.height do
 		if self:isRowFull(row) then
+			block_table[row] = {}
 			for x = 1, self.width do
+				block_table[row][x] = {
+					skin = self.grid[row][x].skin,
+					colour = self.grid[row][x].colour,
+				}
 				self.grid[row][x] = {
 					skin = self.grid[row][x].skin,
 					colour = "X"
 				}
-				self.grid_age[row][x] = 0
+				--self.grid_age[row][x] = 0
 			end
 		end
 	end
-	return true
+	return block_table
 end
 
 function Grid:clearClearedRows()
@@ -396,7 +402,8 @@ function Grid:draw()
 					if self.grid[y][x].skin == "bone" then
 						love.graphics.setColor(1, 1, 1, 1)
 					elseif self.grid[y][x].colour == "X" then
-						love.graphics.setColor(0.5, 0.5, 0.5, 1 - self.grid_age[y][x] / 15)
+						love.graphics.setColor(0, 0, 0, 0)
+						--love.graphics.setColor(0.5, 0.5, 0.5, 1 - self.grid_age[y][x] / 15)
 					else
 						love.graphics.setColor(0.5, 0.5, 0.5, 1)
 					end
@@ -427,10 +434,12 @@ end
 function Grid:drawOutline()
 	for y = 5, self.height do
 		for x = 1, self.width do
+			--[[
 			if self.grid[y][x].colour == "X" then
 				love.graphics.setColor(0.5, 0.5, 0.5, 1 - self.grid_age[y][x] / 15)
 				love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
 			end
+			]]
 			if self.grid[y][x] ~= empty and self.grid[y][x].colour ~= "X" then
 				love.graphics.setColor(0.8, 0.8, 0.8, 1)
 				love.graphics.setLineWidth(1)
@@ -459,7 +468,8 @@ function Grid:drawInvisible(opacity_function, garbage_opacity_function, lock_fla
 		for x = 1, self.width do
 			if self.grid[y][x] ~= empty then
 				if self.grid[y][x].colour == "X" then
-					opacity = 1 - self.grid_age[y][x] / 15
+					opacity = 0
+					--opacity = 1 - self.grid_age[y][x] / 15
 				elseif garbage_opacity_function and self.grid[y][x].colour == "A" then
 					opacity = garbage_opacity_function(self.grid_age[y][x])
 				else
@@ -506,7 +516,8 @@ function Grid:drawCustom(colour_function, gamestate)
 			if block ~= empty then
                 local R, G, B, A, outline = colour_function(gamestate, block, x, y, self.grid_age[y][x])
 				if self.grid[y][x].colour == "X" then
-					A = 1 - self.grid_age[y][x] / 15
+					A = 0
+					--A = 1 - self.grid_age[y][x] / 15
 				end
 				love.graphics.setColor(R, G, B, A)
 				love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)

tetris/modes/gamemode.lua

@@ -63,6 +63,7 @@ function GameMode:new(secret_inputs)
 	self.hard_drop_locked = false
 	self.lock_on_soft_drop = false
 	self.lock_on_hard_drop = false
+	self.cleared_block_table = {}
 	self.used_randomizer = nil
 	self.hold_queue = nil
 	self.held = false
@@ -244,7 +245,7 @@ function GameMode:update(inputs, ruleset)
 			self:onPieceLock(self.piece, cleared_row_count)
 			self:updateScore(self.level, self.drop_bonus, cleared_row_count)
 
-			self.grid:markClearedRows()
+			self.cleared_block_table = self.grid:markClearedRows()
 			self.piece = nil
 			if self.enable_hold then
 				self.held = false
@@ -536,6 +537,67 @@ function GameMode:getHighScoreData()
 	}
 end
 
+function GameMode:drawLineClearAnimation()
+	-- animation function
+	-- params: block x, y, skin, colour
+	-- returns: table with RGBA, skin, colour, x, y
+	
+	-- Fadeout (default)
+	-- [[
+	function animation(x, y, skin, colour)
+		return {
+			1, 1, 1,
+			-0.25 + 1.25 * (self.lcd / self:getLineClearDelay()),
+			skin, colour,
+			48 + x * 16, y * 16
+		}
+	end
+	--]]
+
+	-- Flash
+	--[[
+	function animation(x, y, skin, colour)
+		return {
+			1, 1, 1,
+			self.lcd % 6 < 3 and 1 or 0.25,
+			skin, colour,
+			48 + x * 16, y * 16
+		}
+	end
+	--]]
+
+	-- TGM1 pop-out
+	--[[
+	function animation(x, y, skin, colour)
+		local p = 0.48
+		local l = (
+			(self:getLineClearDelay() - self.lcd) / self:getLineClearDelay()
+		)
+		local dx = l * (x - (1 + self.grid.width) / 2)
+		local dy = l * (y - (1 + self.grid.height) / 2)
+		return {
+			1, 1, 1, 1, skin, colour,
+			48 + (x + dx) * 16,
+			(y + dy) * 16 + (464 / (p - 1)) * l * (p - l)
+		}
+	end
+	--]]
+
+	for y, row in pairs(self.cleared_block_table) do
+		for x, block in pairs(row) do
+			local animation_table = animation(x, y, block.skin, block.colour)
+			love.graphics.setColor(
+				animation_table[1], animation_table[2],
+				animation_table[3], animation_table[4]
+			)
+			love.graphics.draw(
+				blocks[animation_table[5]][animation_table[6]],
+				animation_table[7], animation_table[8]
+			)
+		end
+	end
+end
+
 function GameMode:drawPiece()
 	if self.piece ~= nil then
 		self.piece:draw(