diff options
| -rw-r--r-- | depends.txt | 0 | ||||
| -rw-r--r-- | description.txt | 1 | ||||
| -rw-r--r-- | init.lua | 229 |
3 files changed, 230 insertions, 0 deletions
diff --git a/depends.txt b/depends.txt new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/depends.txt diff --git a/description.txt b/description.txt new file mode 100644 index 0000000..9a2961d --- /dev/null +++ b/description.txt @@ -0,0 +1 @@ +Framework for temporary effects for players. diff --git a/init.lua b/init.lua new file mode 100644 index 0000000..801e882 --- /dev/null +++ b/init.lua @@ -0,0 +1,229 @@ +--[=[ Main tables ]=] + +playereffects = {} + +--[[ table containing the groups (experimental) ]] +playereffects.groups = {} + +--[[ table containing all the effect types ]] +playereffects.effect_types = {} + +--[[ table containing all the active effects ]] +playereffects.effects = {} + +--[[ table (indexed by player names) containing tables containing the active HUD IDs for players + Example: { ["Player 1"] = {1,2,3}, ["Player 2"] = {2}, ["Player 3"] = {} } +]] +playereffects.hudids = {} + +-- Variable for counting the effect_id +playereffects.last_effect_id = 0 + +function playereffects.next_effect_id() + playereffects.last_effect_id = playereffects.last_effect_id + 1 + return playereffects.last_effect_id +end + +--[=[ API functions ]=] +function playereffects.register_effect_type(name, description, groups, apply, cancel) + effect_type = {} + effect_type.description = description + effect_type.apply = apply + effect_type.groups = groups + if cancel ~= nil then + effect_type.cancel = cancel + else + effect_type.cancel = function() end + end + playereffects.effect_types[name] = effect_type + minetest.log("action", "Effect type "..name.." registered!") +end + +function playereffects.apply_effect_type(effect_type_id, duration, player) + local start_time = os.time() + local playername = player:get_player_name() + local groups = playereffects.effect_types[effect_type_id].groups + for k,v in pairs(groups) do + playereffects.cancel_effect_group(v, playername) + end + local effect_id = playereffects.next_effect_id() + local hudid = playereffects.hud_effect(effect_type_id, player, #playereffects.get_player_effects(playername)) + local effect = { + playername = playername, + effect_id = effect_id, + effect_type_id = effect_type_id, + start_time = start_time, + time_left = duration, + hudid = hudid + } + + playereffects.effects[effect_id] = effect + + playereffects.effect_types[effect_type_id].apply(player) + minetest.log("action", "Effect type "..effect_type_id.." applied to player "..playername.."!") + minetest.after(duration, function(effect_id) playereffects.cancel_effect(effect_id) end, effect_id) + +end + +-- TODO +function playereffects.cancel_effect_type(effect_type_id, playername) +end + +function playereffects.cancel_effect_group(groupname, playername) + local effects = playereffects.get_player_effects(playername) + for e=1,#effects do + local effect = effects[e] + local thesegroups = playereffects.effect_types[effect.effect_type_id].groups + minetest.log("action", "thesegroups = "..dump(thesegroups)) + minetest.log("action", "groupname = "..dump(groupname)) + local delete = false + for g=1,#thesegroups do + if(thesegroups[g] == groupname) then + playereffects.cancel_effect(effect.effect_id) + break + end + end + end +end + +function playereffects.cancel_effect(effect_id) + local effect = playereffects.effects[effect_id] + if(effect ~= nil) then + local player = minetest.get_player_by_name(effect.playername) + player:hud_remove(effect.hudid) + playereffects.effect_types[effect.effect_type_id].cancel(effect) + playereffects.effects[effect_id] = nil + end +end + +function playereffects.get_player_effects(playername) + if(minetest.get_player_by_name(playername) ~= nil) then + local effects = {} + for k,v in pairs(playereffects.effects) do + if(v.playername == playername) then + table.insert(effects, v) + end + end + return effects + else + return {} + end +end + +--[=[ Callbacks ]=] +--[[ Cancel all effects on player death ]] +minetest.register_on_dieplayer(function(player) + local effects = playereffects.get_player_effects(player:get_player_name()) + for e=1,#effects do + playereffects.cancel_effect(effects[e].effect_id) + end +end) + +--[[ +minetest.register_on_leaveplayer(function(player) + playereffects.hud_clear(player) + playereffects.hudids[player:get_player_name()] = nil +end) + +minetest.register_on_joinplayer(function(player) + playereffects.hud_update(player) +end) + +minetest.register_on_shutdown(function() + +end) +]] + +--[=[ HUD ]=] +function playereffects.hud_update(player) + playereffects.hud_clear(player) + local effects = playereffects.get_player_effects(player:get_player_name()) + for e=1,#effects do + playereffects.hud_effect(effects[e], player, e-1) + end +end + +function playereffects.hud_clear(player) + local playername = player:get_player_name() + local effects = playereffects.get_player_effects(playername) + if(effects ~= nil) then + for i=1,#effects do + player:hud_remove(effects[i].hudid) + end + end +end + +function playereffects.hud_effect(effect_type_id, player, pos) + local id + id = player:hud_add({ + hud_elem_type = "text", + position = { x = 0.95, y = 0.3 }, + name = "effect_"..effect_type_id, + text = playereffects.effect_types[effect_type_id].description, + scale = { x = 20, y = 100}, + direction = 1, + number = 0xFFFFFF, + offset = { x = 0, y = pos*20 } + }) + local playername = player:get_player_name() + return id +end + + +----- EXAMPLE EFFECT TYPES ----- + +playereffects.register_effect_type("high_speed", "high speed", {"speed"}, + function(player) + player:set_physics_override(4,nil,nil) + end, + + function(effect) + local player = minetest.get_player_by_name(effect.playername) + player:set_physics_override(1,nil,nil) + end +) +playereffects.register_effect_type("low_speed", "low speed", {"speed"}, + function(player) + player:set_physics_override(0.25,nil,nil) + end, + + function(effect) + local player = minetest.get_player_by_name(effect.playername) + player:set_physics_override(1,nil,nil) + end +) +playereffects.register_effect_type("highjump", "greater jump height", {"jump"}, + function(player) + player:set_physics_override(nil,2,nil) + end, + function(effect) + local player = minetest.get_player_by_name(effect.playername) + player:set_physics_override(nil,1,nil) + end +) + + +minetest.register_chatcommand("fast", { + params = "", + description = "Makes you fast for a short time.", + privs = {}, + func = function(name, param) + playereffects.apply_effect_type("high_speed", 10, minetest.get_player_by_name(name)) + end, +}) +minetest.register_chatcommand("slow", { + params = "", + description = "Makes you slow for a short time.", + privs = {}, + func = function(name, param) + playereffects.apply_effect_type("low_speed", 10, minetest.get_player_by_name(name)) + end, +}) +minetest.register_chatcommand("highjump", { + params = "", + description = "Makes you jump higher for a short time.", + privs = {}, + func = function(name, param) + playereffects.apply_effect_type("highjump", 20, minetest.get_player_by_name(name)) + end, +}) |