diff options
Diffstat (limited to 'pacmine/ghost.lua')
| -rw-r--r-- | pacmine/ghost.lua | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/pacmine/ghost.lua b/pacmine/ghost.lua new file mode 100644 index 0000000..7c7c374 --- /dev/null +++ b/pacmine/ghost.lua @@ -0,0 +1,147 @@ + +local ghosts_death_delay = 5 + + +local ghosts = { + {"pinky","Pinky"}, + {"inky","Inky"}, + {"blinky","Blinky"}, + {"clyde","Clyde"}, + } +for i in ipairs(ghosts) do + local itm = ghosts[i][1] + local desc = ghosts[i][2] + + minetest.register_entity("pacmine:"..itm, { + hp_max = 1, + physical = true, + collide_with_objects = true, + visual = "cube", + visual_size = {x = 0.6, y = 1}, + textures = { + "pacmine_"..itm.."s.png", + "pacmine_"..itm.."s.png", + "pacmine_"..itm.."s.png", + "pacmine_"..itm.."s.png", + "pacmine_"..itm.."f.png", + "pacmine_"..itm.."s.png", + }, + velocity = {x=math.random(-1,1), y=0, z=math.random(-1,1)}, + collisionbox = {-0.25, -1.0, -0.25, 0.25, 0.48, 0.25}, + is_visible = true, + automatic_rotate = true, + automatic_face_movement_dir = -90, -- set yaw direction in degrees, false to disable + makes_footstep_sound = false, + + set_velocity = function(self, v) + if not v then v = 0 end + local yaw = self.object:getyaw() + self.object:setvelocity({x=math.sin(yaw) * -v, y=self.object:getvelocity().y, z=math.cos(yaw) * v}) + end, + + on_step = function(self, dtime) + -- every 1 second + self.timer = (self.timer or 0) + dtime + if self.timer < 1 then return end + self.timer = 0 + + -- Do we have game state? if not just die + local gamestate = pacmine.games[self.gameid] + if not gamestate then + minetest.log("action", "Removing pacman ghost without game assigned") + self.object:remove() + return + end + -- Make sure we are in the right state by keeping track of the reset time + -- if the reset time changed it's likely the game got resetted while the entity wasn't loaded + if self.last_reset then + if self.last_reset ~= gamestate.last_reset then + minetest.log("action", "Removing pacman ghost remaining after reset ") + self.object:remove() + end + else + self.last_reset = gamestate.last_reset + end + + -- Make sure we have a targetted player + if not self.target then + self.target = minetest.get_player_by_name(gamestate.player_name) + end + local player = self.target + + -- If there's no player just stop + if not player then + self.set_velocity(self, 0) + return + end + + local s = self.object:getpos() -- ghost + local p = player:getpos() -- player + + -- find distance from ghost to player + local distance = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5 + if distance < 1.5 then + -- player touches ghost!! + + if gamestate.power_pellet then + -- Player eats ghost! move it to spawn + local ghost_spawn = vector.add(gamestate.pos, {x=13,y=0.5,z=19}) + self.object:setpos(ghost_spawn) + -- set the timer negative so it'll have to wait extra time + self.timer = -ghosts_death_delay + -- play sound and reward player + minetest.sound_play("pacmine_eatghost", {pos = boardcenter,max_hear_distance = 6, object=player, loop=false}) + player:get_inventory():add_item('main', 'pacmine:cherrys') + else + -- Ghost catches the player! + gamestate.lives = gamestate.lives - 1 + if gamestate.lives < 1 then + minetest.chat_send_player(gamestate.player_name,"Game Over") + player:moveto(vector.add(gamestate.pos,{x=0.5,y=0.5,z=-1.5})) + pacmine.game_end(self.gameid) + minetest.sound_play("pacmine_death", {pos = boardcenter,max_hear_distance = 20, object=player, loop=false}) + + elseif gamestate.lives == 1 then + minetest.chat_send_player(gamestate.player_name,"This is your last life") + pacmine.game_reset(self.gameid, player) + else + minetest.chat_send_player(gamestate.player_name,"You have ".. gamestate.lives .." lives left") + pacmine.game_reset(self.gameid, player) + end + end + pacmine.update_hud(self.gameid, player) + + else + local vec = {x=p.x-s.x, y=p.y-s.y, z=p.z-s.z} + local yaw = (math.atan(vec.z/vec.x)+math.pi/2) + if p.x > s.x then + yaw = yaw + math.pi + end + -- face player and move backwards/forwards + self.object:setyaw(yaw) + if gamestate.power_pellet then + self.set_velocity(self, -gamestate.speed) --negative velocity + else + self.set_velocity(self, gamestate.speed) + end + end + end, + + -- This function should return the saved state of the entity in a string + get_staticdata = function(self) + return (self.gameid or "") .. ";" .. (self.last_reset or "") + end, + + -- This function should load the saved state of the entity from a string + on_activate = function(self, staticdata) + self.object:set_armor_groups({immortal=1}) + if staticdata and staticdata ~= "" then + local data = string.split(staticdata, ";") + if #data == 2 then + self.gameid = data[1] + self.last_reset = tonumber(data[2]) + end + end + end + }) +end |