Files
Techmino/parts/backgrounds/blockfall.lua

58 lines
1.2 KiB
Lua

--Large falling tetrominoes
local gc=love.graphics
local gc_clear=gc.clear
local gc_setColor,gc_draw=gc.setColor,gc.draw
local rnd=math.random
local ins,rem=table.insert,table.remove
local back={}
local t
local mino
function back.init()
t=0
mino={}
end
function back.update()
t=t+1
if t%26==0 then
local r=rnd(7)
local B=BLOCKS[r][rnd(0,3)]
local k=(1+rnd()*2)*SCR.rad/1000
ins(mino,{
x=(SCR.w)*rnd()-15*#B[1],
y=0,
k=k,
vy=k*2,
block=B,
texture=SKIN.lib[SETTING.skinSet][SETTING.skin[r]],
})
end
for i=#mino,1,-1 do
local M=mino[i]
M.y=M.y+M.vy
if M.y-M.k*#M.block*30>SCR.h then
rem(mino,i)
end
end
end
function back.draw()
gc_clear(.1,.1,.1)
gc_setColor(1,1,1,.2)
for i=1,#mino do
local M=mino[i]
local b=M.block
for y=1,#b do
for x=1,#b[1]do
if b[y][x]then
gc_draw(M.texture,M.x+(x-1)*30*M.k,M.y-y*30*M.k,nil,M.k)
end
end
end
end
end
function back.discard()
mino=nil
end
return back