diff options
Diffstat (limited to 'display_lib/init.lua')
| -rw-r--r-- | display_lib/init.lua | 98 |
1 files changed, 76 insertions, 22 deletions
diff --git a/display_lib/init.lua b/display_lib/init.lua index eaddfd3..276445d 100644 --- a/display_lib/init.lua +++ b/display_lib/init.lua @@ -6,14 +6,59 @@ display_lib = {} -- Miscelaneous values depending on wallmounted param2 local wallmounted_values = { - [0]={dx=0, dz=0, lx=0, lz=0, yaw=0, rotate=0}, -- Should never be used - {dx=1, dz=0, lx=0, lz=0, yaw=0, rotate=1}, -- Should never be used - {dx=1, dz=0, lx=0, lz=-1, yaw=-math.pi/2, rotate=4}, - {dx=-1, dz=0, lx=0, lz=1, yaw=math.pi/2, rotate=5}, - {dx=0, dz=1, lx=1, lz=0, yaw=0, rotate=3}, - {dx=0, dz=-1, lx=-1, lz=0, yaw=math.pi, rotate=2} + [0]={dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, -- Should never be used + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=1}, -- Should never be used + {dx=-1, dz=0, rx=0, rz=-1, yaw=-math.pi/2, rotate=5}, + {dx=1, dz=0, rx=0, rz=1, yaw=math.pi/2, rotate=4}, + {dx=0, dz=-1, rx=1, rz=0, yaw=0, rotate=2}, + {dx=0, dz=1, rx=-1, rz=0, yaw=math.pi, rotate=3} } +-- Miscelaneous values depending on facedir param2 +local facedir_values = { + [0]={dx=0, dz=-1, rx=1, rz=0, yaw=0, rotate=1}, + {dx=-1, dz=0, rx=0, rz=-1, yaw=-math.pi/2, rotate=2}, + {dx=0, dz=1, rx=-1, rz=0, yaw=math.pi, rotate=3}, + {dx=1, dz=0, rx=0, rz=1, yaw=math.pi/2, rotate=0}, + -- Forbiden values : + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + {dx=0, dz=0, rx=0, rz=0, yaw=0, rotate=0}, + } + +-- dx/dy = depth vector, rx/ly = right vector, yaw = yaw of entity, +-- rotate = next facedir/wallmount on rotate + +local function get_values(node) + local ndef = minetest.registered_nodes[node.name] + + if ndef then + if ndef.paramtype2 == "wallmounted" then + return wallmounted_values[node.param2] + end + if ndef.paramtype2 == "facedir" then + return facedir_values[node.param2] + end + end +end + --- Gets the display entities attached with a node. Removes extra ones local function get_entities(pos) local objrefs = {} @@ -45,23 +90,24 @@ end local function place_entities(pos) local node = minetest.get_node(pos) local ndef = minetest.registered_nodes[node.name] - local values = wallmounted_values[node.param2] + local values = get_values(node) local objrefs = get_entities(pos) - if ndef and ndef.display_entities then + if values and ndef and ndef.display_entities then + for entity_name, props in pairs(ndef.display_entities) do local depth = clip_pos_prop(props.depth) - local top = clip_pos_prop(props.top) - local left = clip_pos_prop(props.left) + local height = clip_pos_prop(props.height) + local right = clip_pos_prop(props.right) if not objrefs[entity_name] then objrefs[entity_name] = minetest.add_entity(pos, entity_name) end objrefs[entity_name]:setpos({ - x = pos.x - values.dx * depth + values.lx * left, - y = pos.y + top, - z = pos.z - values.dz * depth + values.lz * left}) + x = pos.x - values.dx * depth + values.rx * right, + y = pos.y + height, + z = pos.z - values.dz * depth + values.rz * right}) objrefs[entity_name]:setyaw(values.yaw) end @@ -97,19 +143,26 @@ end --- On_place callback for display_lib items. Does nothing more than preventing item --- from being placed on ceiling or ground function display_lib.on_place(itemstack, placer, pointed_thing) + local ndef = minetest.registered_nodes[itemstack.name] local above = pointed_thing.above local under = pointed_thing.under local dir = {x = under.x - above.x, y = under.y - above.y, z = under.z - above.z} - local wdir = minetest.dir_to_wallmounted(dir) - if wdir == 0 or wdir == 1 then - dir = placer:get_look_dir() - dir.y = 0 - wdir = minetest.dir_to_wallmounted(dir) + if ndef and ndef.paramtype2 == "wallmounted" then + local wdir = minetest.dir_to_wallmounted(dir) + + if wdir == 0 or wdir == 1 then + dir = placer:get_look_dir() + dir.y = 0 + wdir = minetest.dir_to_wallmounted(dir) + end + + return minetest.item_place(itemstack, placer, pointed_thing, wdir) + else + return minetest.item_place(itemstack, placer, pointed_thing) end - return minetest.item_place(itemstack, placer, pointed_thing, wdir) end --- On_construct callback for display_lib items. Creates entities and update them. @@ -126,13 +179,14 @@ function display_lib.on_destruct(pos) end end - -- On_rotate (screwdriver) callback for display_lib items. Prevents axis rotation and reorients entities. function display_lib.on_rotate(pos, node, user, mode, new_param2) if mode ~= screwdriver.ROTATE_FACE then return false end - if wallmounted_values[node.param2] then - minetest.swap_node(pos, {name = node.name, param1 = node.param1, param2 = wallmounted_values[node.param2].rotate}) + local values = get_values(node) + + if values then + minetest.swap_node(pos, {name = node.name, param1 = node.param1, param2 = values.rotate}) place_entities(pos) return true else |