From 1220b642ebf3c9a28b6eb88160ef63263fa00a44 Mon Sep 17 00:00:00 2001 From: Perttu Ahola Date: Thu, 17 Nov 2011 16:21:17 +0200 Subject: Falling sand and gravel --- data/mods/default/init.lua | 169 +++++++++++++++++++++++++++++++++++++-------- 1 file changed, 142 insertions(+), 27 deletions(-) (limited to 'data') diff --git a/data/mods/default/init.lua b/data/mods/default/init.lua index 966b807ae..949816c9e 100644 --- a/data/mods/default/init.lua +++ b/data/mods/default/init.lua @@ -98,8 +98,9 @@ end -- -- EnvRef is basically ServerEnvironment and ServerMap combined. -- EnvRef methods: --- - add_node(pos, content); pos={x=num, y=num, z=num} --- TODO: content -> MapNode as described below +-- - add_node(pos, node) +-- - remove_node(pos) +-- - get_node(pos) -- -- ObjectRef is basically ServerActiveObject. -- ObjectRef methods: @@ -117,28 +118,11 @@ end -- MapNode representation: -- {name="name", param1=num, param2=num} -- +-- Position representation: +-- {x=num, y=num, z=num} +-- -print("omg lol") -print("minetest dump: "..dump(minetest)) - --- Global environment step function -function on_step(dtime) - -- print("on_step") -end - -minetest.register_globalstep(on_step) - -function on_placenode(p, node) - print("on_placenode") -end - -minetest.register_on_placenode(on_placenode) - -function on_dignode(p, node) - print("on_dignode") -end - -minetest.register_on_dignode(on_dignode) +-- print("minetest dump: "..dump(minetest)) minetest.register_tool("WPick", { image = "tool_woodpick.png", @@ -626,10 +610,43 @@ minetest.register_craft({ } }) +-- +-- Some common functions +-- + +function nodeupdate_single(p) + n = minetest.env:get_node(p) + if n.name == "sand" or n.name == "gravel" then + p_bottom = {x=p.x, y=p.y-1, z=p.z} + n_bottom = minetest.env:get_node(p_bottom) + if n_bottom.name == "air" then + minetest.env:remove_node(p) + minetest.env:add_luaentity(p, "falling_"..n.name) + nodeupdate(p) + end + end +end + +function nodeupdate(p) + for x = -1,1 do + for y = -1,1 do + for z = -1,1 do + p2 = {x=p.x+x, y=p.y+y, z=p.z+z} + nodeupdate_single(p2) + end + end + end +end + +-- +-- TNT (not functional) +-- + local TNT = { + -- Static definition -- Maybe handle gravity and collision this way? dunno - physical = true, - weight = 5, + -- physical = true, + -- weight = 5, collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5}, visual = "cube", textures = {"tnt_top.png","tnt_bottom.png","tnt_side.png","tnt_side.png","tnt_side.png","tnt_side.png"}, @@ -638,7 +655,8 @@ local TNT = { -- Initial value for our timer timer = 0, -- List names of state variables, for serializing object state - state_variables = {"timer"}, + -- (NOTE: not implemented and implementation will not be like this) + -- state_variables = {"timer"}, } -- Called periodically @@ -665,9 +683,106 @@ print("TNT dump: "..dump(TNT)) print("Registering TNT"); minetest.register_entity("TNT", TNT) +-- +-- Falling stuff +-- + +function register_falling_node(nodename, texture) + minetest.register_entity("falling_"..nodename, { + -- Static definition + collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5}, + visual = "cube", + textures = {texture,texture,texture,texture,texture,texture}, + -- State + fallspeed = 0, + -- Methods + on_step = function(self, dtime) + -- Apply gravity manually + self.fallspeed = self.fallspeed + dtime * 5 + fp = self.object:getpos() + fp.y = fp.y - self.fallspeed * dtime + self.object:moveto(fp, true) + -- Turn to actual sand when collides to ground or just move + bcp = {x=fp.x, y=fp.y-0.5, z=fp.z} -- Position of bottom center point + bcn = minetest.env:get_node(bcp) + if bcn.name ~= "air" then + -- Turn to a sand node + np = {x=bcp.x, y=bcp.y+1, z=bcp.z} + minetest.env:add_node(np, {name=nodename}) + self.object:remove() + else + -- Do nothing + end + end + }) +end + +register_falling_node("sand", "sand.png") +register_falling_node("gravel", "gravel.png") + +--[[ +minetest.register_entity("falling_sand", { + -- Definition + collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5}, + visual = "cube", + textures = {"sand.png","sand.png","sand.png","sand.png","sand.png","sand.png"}, + -- State + fallspeed = 0, + -- Methods + on_step = function(self, dtime) + -- Apply gravity + self.fallspeed = self.fallspeed + dtime * 5 + fp = self.object:getpos() + fp.y = fp.y - self.fallspeed * dtime + self.object:moveto(fp) + -- Turn to actual sand when collides to ground or just move + bcp = {x=fp.x, y=fp.y-0.5, z=fp.z} -- Position of bottom center point + bcn = minetest.env:get_node(bcp) + if bcn.name ~= "air" then + -- Turn to a sand node + np = {x=bcp.x, y=bcp.y+1, z=bcp.z} + minetest.env:add_node(np, {name="sand"}) + self.object:remove() + else + -- Do nothing + end + end +}) +--]] + +-- +-- Global callbacks +-- + +-- Global environment step function +function on_step(dtime) + -- print("on_step") +end +minetest.register_globalstep(on_step) + +function on_placenode(p, node) + print("on_placenode") + nodeupdate(p) +end +minetest.register_on_placenode(on_placenode) + +function on_dignode(p, node) + print("on_dignode") + nodeupdate(p) +end +minetest.register_on_dignode(on_dignode) + +-- +-- Done, print some random stuff +-- + print("minetest.registered_entities:") dump2(minetest.registered_entities) +-- +-- Some random pre-implementation planning and drafting +-- + --[[ function TNT:on_rightclick(clicker) print("TNT:on_rightclick()") @@ -677,7 +792,7 @@ function TNT:on_rightclick(clicker) pos = self.object:getpos() print("TNT:on_rightclick(): object position: "..dump(pos)) pos = {x=pos.x+0.5+1, y=pos.y+0.5, z=pos.z+0.5} - --minetest.env:add_node(pos, 0) + --minetest.env:add_node(pos, {name="stone") end --]] -- cgit v1.2.3