myArcade/pacmine/gamestate.lua

332 lines
10 KiB
Lua
Executable File

-- Array to hold all the running game states
pacmine.games = {}
-- Store all the currently playing players
pacmine.players = {}
-- Duration of the power pellet effect (in seconds)
local power_pellet_duration = 10
-- Amount of points that will award a life
local score_for_life_award = 5000
---------------------------------------------------------
-- Public functions (these can be called from any other place)
-- Start the game from the spawn block at position "pos" activated by "player"
function pacmine.game_start(pos, player, gamedef)
-- create an id unique for the given position
local id = minetest.pos_to_string(pos)
local player_name = player:get_player_name()
-- make sure any previous game with the same id has ended
local gamestate = pacmine.games[id]
if gamestate then
minetest.chat_send_player(name, "A game is already in progress for player " .. gamestate.player_name)
return
end
-- Create a new game state with that id and add it to the game list
gamedef = gamedef or {}
gamestate = {
id = id,
player_name = player_name,
pos = pos,
player_start = vector.add(pos, (gamedef.player_start or {x=14,y=0.5,z=16})),
ghost_start = vector.add(pos, (gamedef.ghost_start or {x=13,y=0.5,z=19})),
pellet_total = gamedef.pellet_total or 252,
speed = gamedef.speed or 2,
lives = gamedef.lives or 3,
scorename = gamedef.scorename,
level = 1,
score = 0,
awarded_lives = 0,
pellet_count = 0,
}
pacmine.games[id] = gamestate
pacmine.players[id] = player
minetest.log("action","New pacmine game started at " .. id .. " by " .. gamestate.player_name)
-- place schematic
local schem = gamedef
minetest.place_schematic({x=pos.x,y=pos.y-1,z=pos.z-2},gamedef.schematic,0, "air", true)
-- Set start positions
pacmine.game_reset(id, player)
pacmine.update_hud(id, player)
minetest.sound_play("pacmine_beginning", {pos = pos,max_hear_distance = 40,gain = 10.0,})
end
-- Finish the game with the given id
function pacmine.game_end(id)
pacmine.remove_ghosts(id)
local gamestate = pacmine.games[id]
local player = pacmine.players[id] or minetest.get_player_by_name(gamestate.player_name)
if player then
pacmine.remove_hud(player, gamestate.player_name)
player:moveto(vector.add(gamestate.pos,{x=0.5,y=0.5,z=-1.5}))
end
-- Save score
if gamestate.scorename then
local ranking = myhighscore.save_score(gamestate.scorename, {
player = gamestate.player_name,
score = gamestate.score
})
if ranking then
minetest.chat_send_player(gamestate.player_name, "You made it to the highscores! Your Ranking: " .. ranking)
end
end
-- Clear the data
pacmine.games[id] = nil
pacmine.players[id] = nil
end
-- Resets the game to the start positions
function pacmine.game_reset(id, player)
local gamestate = pacmine.games[id]
minetest.log("action", "resetting game " .. id)
-- Save the time when the game was last resetted (to solve timing issues)
local last_reset = os.time()
gamestate.power_pellet = false
gamestate.last_reset = last_reset
-- Position the player
local player = player or minetest.get_player_by_name(gamestate.player_name)
player:setpos(gamestate.player_start)
-- Spawn the ghosts and assign the game id to each ghost
minetest.after(2, function()
if pacmine.games[id] and last_reset == pacmine.games[id].last_reset then
local ghost = minetest.add_entity(gamestate.ghost_start, "pacmine:inky")
ghost:get_luaentity().gameid = id
end
end)
minetest.after(12, function()
if pacmine.games[id] and last_reset == pacmine.games[id].last_reset then
local ghost = minetest.add_entity(gamestate.ghost_start, "pacmine:pinky")
ghost:get_luaentity().gameid = id
end
end)
minetest.after(22, function()
if pacmine.games[id] and last_reset == pacmine.games[id].last_reset then
local ghost = minetest.add_entity(gamestate.ghost_start, "pacmine:blinky")
ghost:get_luaentity().gameid = id
end
end)
minetest.after(32, function()
if pacmine.games[id] and last_reset == pacmine.games[id].last_reset then
local ghost = minetest.add_entity(gamestate.ghost_start, "pacmine:clyde")
ghost:get_luaentity().gameid = id
end
end)
end
-- Remove all the ghosts from the board with the given id
function pacmine.remove_ghosts(id)
local gamestate = pacmine.games[id]
if not gamestate then return end
-- Remove all non-players (ghosts!)
local boardcenter = vector.add(gamestate.pos, {x=13,y=0.5,z=15})
for index, object in ipairs(minetest.get_objects_inside_radius(boardcenter,20)) do
if object:is_player() ~= true then
object:remove()
end
end
end
-- Add a fruit to the game board
function pacmine.add_fruit(id)
local gamestate = pacmine.games[id]
if not gamestate then return end
local node = {}
-- Different fruit will be used depending on the level
if gamestate.level == 1 then
node.name = "pacmine:cherrys"
node.param2 = 3
elseif gamestate.level == 2 then
node.name = "pacmine:strawberry"
node.param2 = 3
elseif gamestate.level < 5 then
node.name = "pacmine:orange"
node.param2 = 3
else
node.name = "pacmine:apple"
node.param2 = 3
end
local pos = vector.add(gamestate.player_start,{x=0,y=-1,z=0})
minetest.set_node(pos, node)
print(node.param2)
-- Set the timer for the fruit to disappear
minetest.get_node_timer(pos):start(math.random(20, 30))
end
-- A player got a pellet, update the state
function pacmine.on_player_got_pellet(player)
local name = player:get_player_name()
local gamestate = pacmine.get_game_by_player(name)
if not gamestate then return end
gamestate.pellet_count = gamestate.pellet_count + 1
gamestate.score = gamestate.score + 10
pacmine.update_hud(gamestate.id, player)
minetest.sound_play("pacmine_chomp", {object = player, max_hear_distance = 6})
if gamestate.pellet_count == 70 or gamestate.pellet_count == 180 then
pacmine.add_fruit(gamestate.id)
elseif gamestate.pellet_count >= gamestate.pellet_total then
minetest.chat_send_player(name, "You cleared the board!")
pacmine.remove_ghosts(gamestate.id)
gamestate.pellet_count = 0
gamestate.level = gamestate.level + 1
gamestate.speed = gamestate.level + 1
minetest.after(3.0, function()
minetest.chat_send_player(name, "Starting Level "..gamestate.level)
-- place schematic
local schem = minetest.get_modpath("pacmine").."/schems/pacmine.mts"
minetest.place_schematic(vector.add(gamestate.pos, {x=0,y=-1,z=-2}),schem,0, "air", true)
-- Set start positions
pacmine.game_reset(gamestate.id, player)
minetest.sound_play("pacmine_beginning", {pos = pos,max_hear_distance = 40,gain = 10.0,})
end)
end
if gamestate.score / score_for_life_award >= 1 + gamestate.awarded_lives then
minetest.chat_send_player(name, "You reached " .. gamestate.score .. " points and earned an extra life!")
gamestate.lives = gamestate.lives + 1
gamestate.awarded_lives = gamestate.awarded_lives + 1
end
end
-- A player got a power pellet, update the state
function pacmine.on_player_got_power_pellet(player)
local name = player:get_player_name()
local gamestate = pacmine.get_game_by_player(name)
if not gamestate then return end
minetest.chat_send_player(name, "You got a POWER PELLET")
gamestate.power_pellet = os.time() + power_pellet_duration
gamestate.score = gamestate.score + 50
pacmine.update_hud(gamestate.id, player)
local boardcenter = vector.add(gamestate.pos, {x=13,y=0.5,z=15})
local powersound = minetest.sound_play("pacmine_powerup", {pos = boardcenter,max_hear_distance = 20, object=player, loop=true})
minetest.after(power_pellet_duration, function()
minetest.sound_stop(powersound)
if os.time() >= (gamestate.power_pellet or 0) then
gamestate.power_pellet = false
minetest.chat_send_player(name, "POWER PELLET wore off")
end
end)
end
-- A player got a fruit, update the state
function pacmine.on_player_got_fruit(player, points)
local name = player:get_player_name()
local gamestate = pacmine.get_game_by_player(name)
if not gamestate then return end
gamestate.score = gamestate.score + points
minetest.chat_send_player(name, points .. " bonus points!")
minetest.sound_play("pacmine_eatfruit", {pos = pos, max_hear_distance = 6})
end
-- Get the game that the given player is playing
function pacmine.get_game_by_player(player_name)
for _,gamestate in pairs(pacmine.games) do
if gamestate.player_name == player_name then
return gamestate
end
end
end
---------------------------------------------------------
--- Private functions (only can be used inside this file)
-- Called every 0.5 seconds for each player that is currently playing
local function on_player_gamestep(player, gameid)
local player_pos = player:getpos()
local positions = {
{x=0.5,y=0.5,z=0.5},
{x=-0.5,y=0.5,z=-0.5},
}
for _,pos in pairs(positions) do
pos = vector.add(player_pos, pos)
local node = minetest.get_node(pos)
if node.name == "pacmine:pellet_1" then
minetest.remove_node(pos)
pacmine.on_player_got_pellet(player)
elseif node.name == "pacmine:pellet_2" then
minetest.remove_node(pos)
pacmine.on_player_got_power_pellet(player)
elseif node.name == "pacmine:cherrys" then
minetest.remove_node(pos)
pacmine.on_player_got_fruit(player, 100)
elseif node.name == "pacmine:strawberry" then
minetest.remove_node(pos)
pacmine.on_player_got_fruit(player, 300)
elseif node.name == "pacmine:orange" then
minetest.remove_node(pos)
pacmine.on_player_got_fruit(player, 500)
elseif node.name == "pacmine:apple" then
minetest.remove_node(pos)
pacmine.on_player_got_fruit(player, 700)
end
end
end
-------------------
--- Execution code
-- Time counters
local tmr_gamestep = 0
minetest.register_globalstep(function(dtime)
tmr_gamestep = tmr_gamestep + dtime;
if tmr_gamestep > 0.2 then
for id,player in pairs(pacmine.players) do
on_player_gamestep(player, id)
end
tmr_gamestep = 0
end
end)
minetest.register_on_leaveplayer(function(player)
local name = player:get_player_name()
for id,game in pairs(pacmine.games) do
if game.player_name == name then
pacmine.game_end(id)
end
end
end)
minetest.register_on_shutdown(function()
minetest.log("action", "Server shuts down. Ending all pacmine games")
for id,game in pairs(pacmine.games) do
pacmine.game_end(id)
end
end)
-- Chatcommand to end the game for the current player
minetest.register_chatcommand("pacmine_exit", {
params = "",
description = "Loads and saves all rooms",
func = function(name, param)
local gamestate = pacmine.get_game_by_player(name)
if gamestate then
pacmine.game_end(gamestate.id)
minetest.chat_send_player(name, "You are no longer playing pacmine")
else
minetest.chat_send_player(name, "You are not currently in a pacmine game")
end
end
})