--- Bump.lua plugin for STI -- @module bump.lua -- @author David Serrano (BobbyJones|FrenchFryLord) -- @copyright 2019 -- @license MIT/X11 local lg = require((...):gsub("plugins.bump", "graphics")) return { bump_LICENSE = "MIT/X11", bump_URL = "https://github.com/karai17/Simple-Tiled-Implementation", bump_VERSION = "3.1.7.1", bump_DESCRIPTION = "Bump hooks for STI.", --- Adds each collidable tile to the Bump world. -- @param world The Bump world to add objects to. -- @return collidables table containing the handles to the objects in the Bump world. bump_init = function(map, world) local collidables = {} for _, tileset in ipairs(map.tilesets) do for _, tile in ipairs(tileset.tiles) do local gid = tileset.firstgid + tile.id if map.tileInstances[gid] then for _, instance in ipairs(map.tileInstances[gid]) do -- Every object in every instance of a tile if tile.objectGroup then for _, object in ipairs(tile.objectGroup.objects) do if object.properties.collidable == true then local t = { name = object.name, type = object.type, x = instance.x + map.offsetx + object.x, y = instance.y + map.offsety + object.y, width = object.width, height = object.height, layer = instance.layer, properties = object.properties, } world:add(t, t.x, t.y, t.width, t.height) table.insert(collidables, t) end end end -- Every instance of a tile if tile.properties and tile.properties.collidable == true then local t = { x = instance.x + map.offsetx, y = instance.y + map.offsety, width = map.tilewidth, height = map.tileheight, layer = instance.layer, type = tile.type, properties = tile.properties, } world:add(t, t.x, t.y, t.width, t.height) table.insert(collidables, t) end end end end end for _, layer in ipairs(map.layers) do -- Entire layer if layer.properties.collidable == true then if layer.type == "tilelayer" then for y, tiles in ipairs(layer.data) do for x, tile in pairs(tiles) do if tile.objectGroup then for _, object in ipairs(tile.objectGroup.objects) do if object.properties.collidable == true then local t = { name = object.name, type = object.type, x = ((x - 1) * map.tilewidth + tile.offset.x + map.offsetx) + object.x, y = ((y - 1) * map.tileheight + tile.offset.y + map.offsety) + object.y, width = object.width, height = object.height, layer = layer, properties = object.properties, } world:add(t, t.x, t.y, t.width, t.height) table.insert(collidables, t) end end end local t = { x = (x - 1) * map.tilewidth + tile.offset.x + map.offsetx, y = (y - 1) * map.tileheight + tile.offset.y + map.offsety, width = tile.width, height = tile.height, layer = layer, type = tile.type, properties = tile.properties, } world:add(t, t.x, t.y, t.width, t.height) table.insert(collidables, t) end end elseif layer.type == "imagelayer" then world:add(layer, layer.x, layer.y, layer.width, layer.height) table.insert(collidables, layer) end end -- individual collidable objects in a layer that is not "collidable" -- or whole collidable objects layer if layer.type == "objectgroup" then for _, obj in ipairs(layer.objects) do if layer.properties.collidable == true or obj.properties.collidable == true then if obj.shape == "rectangle" then local t = { name = obj.name, type = obj.type, x = obj.x + map.offsetx, y = obj.y + map.offsety, width = obj.width, height = obj.height, layer = layer, properties = obj.properties, } if obj.gid then t.y = t.y - obj.height end world:add(t, t.x, t.y, t.width, t.height) table.insert(collidables, t) end -- TODO implement other object shapes? end end end end map.bump_world = world map.bump_collidables = collidables end, --- Remove layer -- @param index to layer to be removed bump_removeLayer = function(map, index) local layer = assert(map.layers[index], "Layer not found: " .. index) local collidables = map.bump_collidables -- Remove collision objects for i = #collidables, 1, -1 do local obj = collidables[i] if obj.layer == layer and (layer.properties.collidable == true or obj.properties.collidable == true) then map.bump_world:remove(obj) table.remove(collidables, i) end end end, --- Draw bump collisions world. -- @param world bump world holding the tiles geometry -- @param tx Translate on X -- @param ty Translate on Y -- @param sx Scale on X -- @param sy Scale on Y bump_draw = function(map, tx, ty, sx, sy) lg.push() lg.scale(sx or 1, sy or sx or 1) lg.translate(math.floor(tx or 0), math.floor(ty or 0)) local items = map.bump_world:getItems() for _, item in ipairs(items) do lg.rectangle("line", map.bump_world:getRect(item)) end lg.pop() end, } --- Custom Properties in Tiled are used to tell this plugin what to do. -- @table Properties -- @field collidable set to true, can be used on any Layer, Tile, or Object