68 lines
1.6 KiB
Lua
68 lines
1.6 KiB
Lua
basic_robot.commands = {};
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local pi = math.pi;
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local function pos_in_dir(obj, dir) -- position after we move in specified direction
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local yaw = obj:getyaw();
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local pos = obj:getpos();
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if dir == 1 then
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yaw = yaw + pi/2;
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elseif dir == 2 then
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yaw = yaw - pi/2;
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elseif dir == 3 then
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elseif dir == 4 then
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yaw = yaw+pi;
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elseif dir == 5 then
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pos.y=pos.y+1
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elseif dir == 6 then
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pos.y=pos.y-1
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end
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if dir<5 then
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pos.x = pos.x+math.cos(yaw)
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pos.z = pos.z+math.sin(yaw)
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end
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return pos
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end
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basic_robot.commands.move = function(obj,dir)
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local pos = pos_in_dir(obj, dir)
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if minetest.get_node(pos).name ~= "air" then return end
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-- up; no levitation!
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if minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z}).name == "air" and
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minetest.get_node({x=pos.x,y=pos.y-2,z=pos.z}).name == "air" then
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return
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end
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obj:moveto(pos, true)
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end
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basic_robot.commands.turn = function (obj, angle)
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local yaw = obj:getyaw()+angle;
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obj:setyaw(yaw);
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end
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basic_robot.commands.dig = function(obj,dir)
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local pos = pos_in_dir(obj, dir)
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local luaent = obj:get_luaentity();
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if minetest.is_protected(pos,luaent.owner ) then return end
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minetest.set_node(pos,{name = "air"})
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end
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basic_robot.commands.read_node = function(obj,dir)
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local pos = pos_in_dir(obj, dir)
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return minetest.get_node(pos).name or ""
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end
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basic_robot.commands.place = function(obj,nodename, dir)
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local pos = pos_in_dir(obj, dir)
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local luaent = obj:get_luaentity();
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if minetest.is_protected(pos,luaent.owner ) then return end
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if minetest.get_node(pos).name~="air" then return end
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minetest.set_node(pos,{name = nodename})
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end |