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undo function

This commit is contained in:
makiki 2024-08-17 19:13:10 +02:00
parent bab3bda564
commit 8cec0ef36c
1 changed files with 126 additions and 2 deletions
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128
game.lua
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@ -68,6 +68,16 @@ function Game:step(ox,oy)
if self.level_data[self.floor].walls[ty][tx]==1 then
if self.player_item == "pickaxe" then
--push to undo memory
self.undo_history[#self.undo_history+1] = {
"dig",
{
floor = self.floor,
px = self.player_x,
py = self.player_y,
wx = tx,
wy = ty,
}
}
--remove wall
self.level_data[self.floor].walls[ty][tx]=0
--remove item
@ -84,7 +94,16 @@ function Game:step(ox,oy)
break
elseif entities[i].type == "enemy" then
if self.player_item == "vorpal" then
--push to undo memory
self.undo_history[#self.undo_history+1] = {
"vorpal",
{
floor = self.floor,
px = self.player_x,
py = self.player_y,
ent_type = entities[i].type,
ent = entities[i],
}
}
--remove entity
entities[i].type = nil
--remove item
@ -94,6 +113,17 @@ function Game:step(ox,oy)
return
else
--push to undo memory
self.undo_history[#self.undo_history+1] = {
"fight",
{
floor = self.floor,
px = self.player_x,
py = self.player_y,
power = self.player_power,
ent_type = entities[i].type,
ent = entities[i],
}
}
--remove entity
entities[i].type = nil
--absorb power
@ -103,6 +133,16 @@ function Game:step(ox,oy)
elseif entities[i].type == "enemy_neg" then
if self.player_item == "vorpal" then
--push to undo memory
self.undo_history[#self.undo_history+1] = {
"vorpal",
{
floor = self.floor,
px = self.player_x,
py = self.player_y,
ent_type = entities[i].type,
ent = entities[i],
}
}
--remove entity
entities[i].type = nil
--remove item
@ -112,6 +152,17 @@ function Game:step(ox,oy)
return
else
--push to undo memory
self.undo_history[#self.undo_history+1] = {
"fight",
{
floor = self.floor,
px = self.player_x,
py = self.player_y,
power = self.player_power,
ent_type = entities[i].type,
ent = entities[i],
}
}
--remove entity
entities[i].type = nil
--absorb power
@ -120,6 +171,17 @@ function Game:step(ox,oy)
end
elseif entities[i].type == "elixir" then
--push to undo memory
self.undo_history[#self.undo_history+1] = {
"fight",
{
floor = self.floor,
px = self.player_x,
py = self.player_y,
power = self.player_power,
ent_type = entities[i].type,
ent = entities[i],
}
}
--remove entity
entities[i].type = nil
--double power
@ -127,6 +189,17 @@ function Game:step(ox,oy)
break
elseif entities[i].type == "gate" then
--push to undo memory
self.undo_history[#self.undo_history+1] = {
"fight",
{
floor = self.floor,
px = self.player_x,
py = self.player_y,
power = self.player_power,
ent_type = entities[i].type,
ent = entities[i],
}
}
--remove entity
entities[i].type = nil
--divide power by two
@ -138,6 +211,16 @@ function Game:step(ox,oy)
return
end
--push to undo memory
self.undo_history[#self.undo_history+1] = {
"item_get",
{
floor = self.floor,
px = self.player_x,
py = self.player_y,
ent_type = entities[i].type,
ent = entities[i],
}
}
--remove entity
entities[i].type = nil
--equip item
@ -149,6 +232,16 @@ function Game:step(ox,oy)
return
end
--push to undo memory
self.undo_history[#self.undo_history+1] = {
"item_get",
{
floor = self.floor,
px = self.player_x,
py = self.player_y,
ent_type = entities[i].type,
ent = entities[i],
}
}
--remove entity
entities[i].type = nil
--equip item
@ -178,7 +271,38 @@ function Game:undo()
if #self.undo_history == 0 then
return
end
undo_item = self.undo_history[#self.undo_history]
if undo_item[1] == "vorpal" then
self.floor = undo_item[2].floor
self.player_x = undo_item[2].px
self.player_y = undo_item[2].py
undo_item[2].ent.type = undo_item[2].ent_type
self.player_item = "vorpal"
elseif undo_item[1] == "dig" then
self.floor = undo_item[2].floor
self.player_x = undo_item[2].px
self.player_y = undo_item[2].py
self.level_data[self.floor].walls[undo_item[2].wy][undo_item[2].wx]=1
self.player_item = "pickaxe"
elseif undo_item[1] == "item_get" then
self.floor = undo_item[2].floor
self.player_x = undo_item[2].px
self.player_y = undo_item[2].py
undo_item[2].ent.type = undo_item[2].ent_type
self.player_item = nil
elseif undo_item[1] == "fight" then
--works for elixirs and gates too
self.floor = undo_item[2].floor
self.player_x = undo_item[2].px
self.player_y = undo_item[2].py
self.player_power = undo_item[2].power
undo_item[2].ent.type = undo_item[2].ent_type
else
assert(false)
end
--remove the item from stack
self.undo_history[#self.undo_history] = nil
end
function Game:update(dt)