From ce65c8ee753414f80fc7fd4474cc41c447cffcf7 Mon Sep 17 00:00:00 2001
From: teknomunk <teknomunk@protonmail.com>
Date: Sun, 5 May 2024 13:25:19 +0000
Subject: [PATCH] Add bubble columns, apply environmental physics to players
---
mods/ITEMS/vl_bubble_column/init.lua | 95 ++++++++++++++++++++++++++++
mods/ITEMS/vl_bubble_column/mod.conf | 4 ++
mods/PLAYER/mcl_playerplus/init.lua | 4 ++
mods/PLAYER/mcl_playerplus/mod.conf | 2 +-
4 files changed, 104 insertions(+), 1 deletion(-)
create mode 100644 mods/ITEMS/vl_bubble_column/init.lua
create mode 100644 mods/ITEMS/vl_bubble_column/mod.conf
diff --git a/mods/ITEMS/vl_bubble_column/init.lua b/mods/ITEMS/vl_bubble_column/init.lua
new file mode 100644
index 000000000..12a0f60c9
--- /dev/null
+++ b/mods/ITEMS/vl_bubble_column/init.lua
@@ -0,0 +1,95 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
+local WATER_VISC = 1
+local USE_TEXTURE_ALPHA = true
+if minetest.features.use_texture_alpha_string_modes then
+ USE_TEXTURE_ALPHA = "blend"
+end
+
+local positions = {}
+local function check_bubble_column(pos, node)
+ local below_pos = vector.offset(pos,0,-1,0)
+ local below = minetest.get_node(below_pos)
+ if below.name == "mcl_nether:soul_sand" or below.name == "mcl_nether:magma" then
+ return true
+ end
+
+ if below.name == "mcl_core:water_source" and positions[minetest.hash_node_position(below_pos)] then
+ return true
+ end
+
+ print("Tearing down bubble column at "..vector.to_string(pos))
+
+ local pos_hash = minetest.hash_node_position(pos)
+
+ -- Don't continue upwards if this already wasn't a bubble column
+ if not positions[pos_hash] then return end
+
+ -- Remove this node from the columnpositions
+ positions[pos_hash] = nil
+
+ pos = vector.offset(pos,0,1,0)
+
+ node = minetest.get_node(pos)
+ return check_bubble_column(pos,node)
+end
+
+minetest.register_abm({
+ label = "Create Bubble Column",
+ interval = 1,
+ chance = 1,
+ nodenames = { "mcl_nether:soul_sand", "mcl_nether:magma" },
+ neighbors = { "mcl_core:water_source" },
+ action = function(pos, node)
+ local above_pos = vector.offset(pos,0,1,0)
+ local above = minetest.get_node(above_pos)
+ if above.name ~= "mcl_core:water_source" then return end
+
+ local direction = 1
+ if node.name == "mcl_nether:magma" then
+ direction = -1
+ end
+
+ -- Create the bubble column
+ while above.name == "mcl_core:water_source" do
+ local above_pos_hash = minetest.hash_node_position(above_pos)
+ if positions[above_pos_hash] == direction then return end
+ positions[above_pos_hash] = direction
+
+ above_pos = vector.offset(above_pos,0,1,0)
+ above = minetest.get_node(above_pos)
+ end
+ end
+})
+local BUBBLE_TIME = 0.5
+local BUBBLE_PARTICLE = {
+ texture = "mcl_particles_bubble.png",
+ collision_removal = false,
+ expirationtime = BUBBLE_TIME,
+ collisiondetection = false,
+ size = 2.5,
+}
+minetest.register_globalstep(function(dtime)
+ for hash,dir in pairs(positions) do
+ if math.random(1,17) == 1 then
+ local pos = minetest.get_position_from_hash(hash)
+ local node = minetest.get_node(pos)
+ if check_bubble_column(pos, node) then
+ local particle = table.copy(BUBBLE_PARTICLE)
+ particle.pos = vector.offset(pos, math.random(-28,28)/64, -0.51 * dir, math.random(-28,28)/64)
+ particle.velocity = (vector.offset(pos, math.random(-28,28)/64, 0.51 * dir, math.random(-28,28)/64) - particle.pos) / BUBBLE_TIME
+ particle.acceleration = vector.zero()
+ minetest.add_particle(particle)
+ end
+ end
+ end
+end)
+vl_physics.register_environment_effect(function(pos, vel, staticdata, entity)
+ local pos_r = vector.round(pos)
+ local pos_r_hash = minetest.hash_node_position(pos_r)
+ local dir = positions[pos_r_hash]
+ if not dir then return nil,nil end
+
+ return vector.new(0,4*dir,0),vector.new(0,9*dir,0)
+end)
+
diff --git a/mods/ITEMS/vl_bubble_column/mod.conf b/mods/ITEMS/vl_bubble_column/mod.conf
new file mode 100644
index 000000000..971a6465d
--- /dev/null
+++ b/mods/ITEMS/vl_bubble_column/mod.conf
@@ -0,0 +1,4 @@
+name = vl_bubble_column
+author = teknomunk
+description = Bubble Column
+depends = mcl_sounds, vl_physics
diff --git a/mods/PLAYER/mcl_playerplus/init.lua b/mods/PLAYER/mcl_playerplus/init.lua
index 1707108f8..02ff8e775 100644
--- a/mods/PLAYER/mcl_playerplus/init.lua
+++ b/mods/PLAYER/mcl_playerplus/init.lua
@@ -179,6 +179,10 @@ minetest.register_globalstep(function(dtime)
local c_x, c_y = unpack(player_collision(player))
+ -- Apply enviornmental physics effects
+ local v,a = vl_physics.get_environment_effect(player:get_pos(), player_velocity, {}, 1, player)
+ if v then player:add_velocity(v) end
+
if player_velocity.x + player_velocity.y < .5 and c_x + c_y > 0 then
player:add_velocity({x = c_x, y = 0, z = c_y})
player_velocity = player:get_velocity() or player:get_player_velocity()
diff --git a/mods/PLAYER/mcl_playerplus/mod.conf b/mods/PLAYER/mcl_playerplus/mod.conf
index 953ea9403..db3ca2918 100644
--- a/mods/PLAYER/mcl_playerplus/mod.conf
+++ b/mods/PLAYER/mcl_playerplus/mod.conf
@@ -1,5 +1,5 @@
name = mcl_playerplus
author = TenPlus1
description = Adds some simple player-related gameplay effects: Hurt by touching a cactus, suffocation and more.
-depends = mcl_init, mcl_core, mcl_particles, mcl_hunger, playerphysics, mcl_playerinfo, mcl_weather, mcl_spawn, mcl_enchanting, mcl_damage, mcl_sprint, mcl_util, mcl_shields
+depends = mcl_init, mcl_core, mcl_particles, mcl_hunger, playerphysics, mcl_playerinfo, mcl_weather, mcl_spawn, mcl_enchanting, mcl_damage, mcl_sprint, mcl_util, mcl_shields, vl_physics