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- Committer: Josh C
- Date: 2013-03-04 23:27:03 UTC
- Revision ID: josh@9ix.org-20130304232703-nob2mg5wbo5co5is
basic tiles, map, player, movement
- files added:
- zoetrope/core/gamepad.lua
- files removed:
- animation.lua
- zoetrope/input
- files modified:
- data/map.lua
added
removed
zoetrope/core/view.lua
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-- Extends:
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-- <Group>
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View = Group:extend
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{
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View = Group:extend{
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-- Property: timer
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-- A built-in <Timer> object for use as needed.
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return obj
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end,
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-- Method: loadLayers
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-- Loads layers from a Lua source file (as generated by Tiled -- http://mapeditor.org).
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-- Each layer is created as a <Group> and added to preserve its ordering. Tile layers
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-- are created as <Map> instances; object layers will try to create instances of a class
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-- named by the object's name property. If no class exists by this name, or the object
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-- has no name property, a gray fill will be created instead, as a placeholder. If the
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-- object has a property named _the, then this will set the.[whatever] to it.
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--
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-- Arguments:
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-- file - filename to load
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--
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-- Returns:
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-- nothing
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loadLayers = function (self, file)
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local ok, data = pcall(loadstring(Cached:text(file)))
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local _, _, directory = string.find(file, '^(.*[/\\])')
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directory = directory or ''
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if ok then
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-- store tile properties by gid
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local tileProtos = {}
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for _, tileset in pairs(data.tilesets) do
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for _, tile in pairs(tileset.tiles) do
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local id = tileset.firstgid + tile.id
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for key, value in pairs(tile.properties) do
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tile.properties[key] = tovalue(value)
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end
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tileProtos[id] = tile
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tileProtos[id].width = tileset.tilewidth
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tileProtos[id].height = tileset.tileheight
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end
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end
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for _, layer in pairs(data.layers) do
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if View[layer.name] then
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error('the View class reserves the ' .. layer.name .. ' property for its own use; you cannot load a layer with that name')
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end
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if STRICT and self[layer.name] then
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local info = debug.getinfo(2, 'Sl')
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print('Warning: a property named ' .. layer.name .. ' already exists in the current view (' ..
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info.short_src .. ', line ' .. info.currentline .. ')')
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end
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if layer.type == 'tilelayer' then
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local map = Map:new{ spriteWidth = data.tilewidth, spriteHeight = data.tileheight }
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map:empty(layer.width, layer.height)
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-- load tiles
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for _, tiles in pairs(data.tilesets) do
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map:loadTiles(directory .. tiles.image, Tile, tiles.firstgid)
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-- and mix in properties where applicable
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for id, tile in pairs(tileProtos) do
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if map.sprites[id] then
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map.sprites[id]:mixin(tile.properties)
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end
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end
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end
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-- load tile data
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local x = 1
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local y = 1
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for _, val in ipairs(layer.data) do
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map.map[x][y] = val
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x = x + 1
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if x > layer.width then
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x = 1
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y = y + 1
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end
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end
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self[layer.name] = map
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self:add(map)
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elseif layer.type == 'objectgroup' then
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local group = Group:new()
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for _, obj in pairs(layer.objects) do
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-- roll in tile properties if based on a tile
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if obj.gid and tileProtos[obj.gid] then
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local tile = tileProtos[obj.gid]
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obj.name = tile.properties.name
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obj.width = tile.width
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obj.height = tile.height
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for key, value in pairs(tile.properties) do
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obj.properties[key] = tovalue(value)
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end
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-- Tiled tile-based objects measure their y
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-- position at their lower-left corner, instead
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-- of their upper-left corner as usual
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obj.y = obj.y - obj.height
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end
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-- create a new object if the class does exist
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local spr
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if _G[obj.name] then
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obj.properties.x = obj.x
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obj.properties.y = obj.y
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obj.properties.width = obj.width
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obj.properties.height = obj.height
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spr = _G[obj.name]:new(obj.properties)
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else
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spr = Fill:new{ x = obj.x, y = obj.y, width = obj.width, height = obj.height, fill = { 128, 128, 128 } }
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end
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if obj.properties._the then
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the[obj.properties._the] = spr
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end
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group:add(spr)
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end
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self[layer.name] = group
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self:add(group)
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else
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error("don't know how to create a " .. layer.type .. " layer from file data")
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end
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end
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else
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error('could not load view data from file: ' .. data)
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end
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end,
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-- Method: clampTo
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-- Clamps the view so that it never scrolls past a sprite's boundaries.
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-- This only looks at the sprite's position at this instant in time,
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end,
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update = function (self, elapsed)
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Group.update(self, elapsed)
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-- follow the focused sprite
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local screenWidth = the.app.width
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local screenHeight = the.app.height
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-- follow the focused sprite
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if self.focus and self.focus.width < screenWidth
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and self.focus.height < screenHeight then
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if self.translate.y < screenHeight - self.maxVisible.y then
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self.translate.y = screenHeight - self.maxVisible.y
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end
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Group.update(self, elapsed)
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end,
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draw = function (self, x, y)
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Version: 2.0.1