# Tidalwave
# By nathanaelps
# thespuff.com
# 2020-12-22
# For Lyrst

$secondsbetweenwaves:60
$depth_north:20
$depth_south:-20
$depth_east:20
$depth_west:-20

once @initialize endonce

GetTimer0 eq0 if
  @tsunami
  30 <-secondsbetweenwaves mul SetTimer0
endif

:initialize
  Self "main" "none" SetImage
  Self CONST_NULLIFIERDAMAGES 0 SetUnitAttribute
  Self CONST_COUNTSFORVICTORY 0 SetUnitAttribute
  Self CONST_TAKEMAPSPACE 0 SetUnitAttribute
  30 <-secondsbetweenwaves mul SetTimer0

:tsunami
  MapWidth 2 sub 1 do
    I 0 <-depth_north SetCreeperNoLower
    I MapHeight 1 sub <-depth_south SetCreeperNoLower
  loop
  MapHeight 2 sub 1 do
    0 I <-depth_west SetCreeperNoLower
    MapWidth 1 sub I <-depth_east SetCreeperNoLower
  loop