From 6b7da23b868a28044a568227c5df64c05461e412 Mon Sep 17 00:00:00 2001 From: teknomunk Date: Wed, 22 May 2024 20:32:19 +0000 Subject: [PATCH] Add in vl_projectile, add mcl_util.match_node_to_filter --- mods/CORE/mcl_util/nodes.lua | 9 ++ mods/ITEMS/vl_projectile/init.lua | 149 ++++++++++++++++++++++++++++++ mods/ITEMS/vl_projectile/mod.conf | 2 + 3 files changed, 160 insertions(+) create mode 100644 mods/ITEMS/vl_projectile/init.lua create mode 100644 mods/ITEMS/vl_projectile/mod.conf diff --git a/mods/CORE/mcl_util/nodes.lua b/mods/CORE/mcl_util/nodes.lua index 7fcfe37eb..88b471d22 100644 --- a/mods/CORE/mcl_util/nodes.lua +++ b/mods/CORE/mcl_util/nodes.lua @@ -450,4 +450,13 @@ function mcl_util.get_colorwallmounted_rotation(pos) end end +function mcl_util.match_node_to_filter(node_name, filters) + for i = 1,#filters do + local filter = filters[i] + if node_name == filter then return true end + if string.sub(filter,1,6) == "group:" and minetest.get_item_group(node_name, string.sub(filter,7)) ~= 0 then return true end + end + + return false +end diff --git a/mods/ITEMS/vl_projectile/init.lua b/mods/ITEMS/vl_projectile/init.lua new file mode 100644 index 000000000..4c223a787 --- /dev/null +++ b/mods/ITEMS/vl_projectile/init.lua @@ -0,0 +1,149 @@ +local mod = {} +vl_projectile = mod + +local GRAVITY = tonumber(minetest.settings:get("movement_gravity")) + +function mod.update_projectile(self, dtime) + local entity_name = self.name + local entity_def = minetest.registered_entities[entity_name] or {} + local entity_vl_projectile = entity_def._vl_projectile or {} + + -- Update entity timer + self.timer = self.timer + dtime + + -- Run behaviors + local behaviors = entity_vl_projectile.behaviors or {} + for i=1,#behaviors do + local behavior = behaviors[i] + if behavior(self, dtime, entity_def, entity_vl_projectile) then + return + end + end +end + +local function no_op() +end + +function mod.collides_with_solids(self, dtime, entity_def, projectile_def) + local pos = self.object:get_pos() + + -- Don't try to do anything on first update + if not self._last_pos then + self._last_pos = pos + return + end + + -- Check if the object can collide with this node + local node = minetest.get_node(pos) + local node_def = minetest.registered_nodes[node.name] + local collides_with = projectile_def.collides_with + if node_def and not node_def.walkable and (not collides_with or not mcl_util.match_node_to_filter(node.name, collides_with)) then + self._last_pos = pos + return + end + + -- Call entity collied hook + local hook = projectile_def.on_collide_with_solid or no_op + hook(self, pos, node, node_def) + + -- Call node collided hook + local hook = (node_def._vl_projectile or {}).on_collide or no_op + hook(self, pos, node, node_def) + + -- Play sounds + local sounds = projectile_def.sounds or {} + local sound = sounds.on_solid_collision or sounds.on_collision + if sound then + local arg2 = table.copy(sound[2]) + arg2.pos = pos + minetest.sound_play(sound[1], arg2, sound[3]) + end + + -- Normally objects should be removed on collision with solids + if not projectile_def.survive_collision then + self.object:remove() + end + + -- Done with behaviors + return true +end + +local function handle_entity_collision(self, entity_def, projectile_def, entity) + local dir = vector.normalize(self.object:get_velocity()) + local self_vl_projectile = self._vl_projectile + + if entity:is_player() and projectile_def.hits_players and self_vl_projectile.owner ~= hit:get_player_name() then + entity:punch(self.object, 1.0, projectile_def.tool or { full_punch_interval = 1.0, damage_groups = dmg }, dir ) + elseif (entity.is_mob == true or entity._hittable_by_projectile) and (self_vl_projectile.owner ~= entity) then + entity:punch(self.object, 1.0, projectile_def.tool or { full_punch_interval = 1.0, damage_groups = dmg }, dir ) + end + + -- Normally objects should be removed on collision with entities + if not projectile_def.survive_collision then + self.object:remove() + end + + -- Call entity collied hook + (projectile_def.on_collide_with_entity or no_op)(self, pos, entity) + + -- Call node collided hook + local other_entity_def = minetest.registered_entities[entity.name] or {} + local other_entity_vl_projectile = other_entity_def._vl_projectile or {} + local hook = (other_entity_vl_projectile or {}).on_collide or no_op + hook(entity, self) + + -- Play sounds + local sounds = (projectile_def.sounds or {}) + local sound = sounds.on_entity_collide or sounds.on_collision + if on_collide_sound then + local arg2 = table.copy(sound[2]) + arg2.pos = pos + minetest.sound_play(sound[1], arg2, sound[3]) + end +end + +function mod.collides_with_entities(self, dtime, entity_def, projectile_def) + local pos = self.object:get_pos() + local dmg = projectile_def.damage_groups or 0 + + local hit = nil + + local objects = minetest.get_objects_inside_radius(pos, 1.5) + for i = 1,#objects do + local object = objects[i] + local entity = object:get_luaentity() + + if entity and entity.name ~= self.object:get_luaentity().name then + if object:is_player() and self._thrower ~= object:get_player_name() then + return handle_entity_collision(self, entity_def, projectile_def, object) + elseif (entity.is_mob == true or entity._hittable_by_projectile) and (self._thrower ~= object) then + return handle_entity_collision(self, entity_def, projectile_def, object) + end + end + end +end + +function mod.create(entity_id, options) + local obj = minetest.add_entity(options.pos, entity_id, options.staticdata) + + -- Set initial velocoty and acceleration + obj:set_velocity(vector.multiply(options.dir or vector.zero(), options.velocity or 0)) + obj:set_acceleration(vector.add( + vector.multiply(options.dir or vector.zero(), -math.abs(options.drag)), + vector.new(0,-GRAVITY,0) + )) + + -- Update projectile parameters + local luaentity = obj:get_luaentity() + luaentity._vl_projectile = { + owner = options.owner, + extra = options.extra, + } + + -- Make the update function easy to get to + luaentity.update_projectile = mod.update_projectile + + -- And provide the caller with the created object + return obj +end + diff --git a/mods/ITEMS/vl_projectile/mod.conf b/mods/ITEMS/vl_projectile/mod.conf new file mode 100644 index 000000000..b17cd8550 --- /dev/null +++ b/mods/ITEMS/vl_projectile/mod.conf @@ -0,0 +1,2 @@ +name = vl_projectile +depends = mcl_util