Fix indenting

spatialhash.lua

@@ -1,20 +1,16 @@
 --[[
 Copyright (c) 2011 Matthias Richter
-
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
-
 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
-
 Except as contained in this notice, the name(s) of the above copyright holders
 shall not be used in advertising or otherwise to promote the sale, use or
 other dealings in this Software without prior written authorization.
-
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -29,178 +25,178 @@ local min, max = math.min, math.max
 
 local _PACKAGE, common_local = (...):match("^(.+)%.[^%.]+"), common
 if not (type(common) == 'table' and common.class and common.instance) then
-    assert(common_class ~= false, 'No class commons specification available.')
+	assert(common_class ~= false, 'No class commons specification available.')
-    require(_PACKAGE .. '.class')
+	require(_PACKAGE .. '.class')
-    common_local, common = common, common_local
+	common_local, common = common, common_local
 end
 
 local Spatialhash = {}
 function Spatialhash:init(cell_size)
-    self.cell_size = cell_size or 100
+	self.cell_size = cell_size or 100
-    self.cells = {}
+	self.cells = {}
 end
 
 function Spatialhash:cellCoords(x,y)
-    return floor(x / self.cell_size), floor(y / self.cell_size)
+	return floor(x / self.cell_size), floor(y / self.cell_size)
 end
 
 function Spatialhash:cell(i,k)
-    local row = rawget(self.cells, i)
+	local row = rawget(self.cells, i)
-    if not row then
+	if not row then
-        row = {}
+		row = {}
-        rawset(self.cells, i, row)
+		rawset(self.cells, i, row)
-    end
+	end
 
-    local cell = rawget(row, k)
+	local cell = rawget(row, k)
-    if not cell then
+	if not cell then
-        cell = setmetatable({}, {__mode = "kv"})
+		cell = setmetatable({}, {__mode = "kv"})
-        rawset(row, k, cell)
+		rawset(row, k, cell)
-    end
+	end
 
-    return cell
+	return cell
 end
 
 function Spatialhash:cellAt(x,y)
-    return self:cell(self:cellCoords(x,y))
+	return self:cell(self:cellCoords(x,y))
 end
 
  -- get all shapes
 function Spatialhash:shapes()
-    local set = {}
+	local set = {}
-    for i,row in pairs(self.cells) do
+	for i,row in pairs(self.cells) do
-        for k,cell in pairs(row) do
+		for k,cell in pairs(row) do
-            for obj in pairs(cell) do
+			for obj in pairs(cell) do
-                rawset(set, obj, obj)
+				rawset(set, obj, obj)
-            end
+			end
-        end
+		end
-    end
+	end
-    return set
+	return set
 end
 
 -- get all shapes that are in the same cells as the bbox x1,y1 '--. x2,y2
 function Spatialhash:inSameCells(x1,y1, x2,y2)
-    local set = {}
+	local set = {}
-    x1, y1 = self:cellCoords(x1, y1)
+	x1, y1 = self:cellCoords(x1, y1)
-    x2, y2 = self:cellCoords(x2, y2)
+	x2, y2 = self:cellCoords(x2, y2)
-    for i = x1,x2 do
+	for i = x1,x2 do
-        for k = y1,y2 do
+		for k = y1,y2 do
-            for obj in pairs(self:cell(i,k)) do
+			for obj in pairs(self:cell(i,k)) do
-                rawset(set, obj, obj)
+				rawset(set, obj, obj)
-            end
+			end
-        end
+		end
-    end
+	end
-    return set
+	return set
 end
 
 function Spatialhash:register(obj, x1, y1, x2, y2)
-    x1, y1 = self:cellCoords(x1, y1)
+	x1, y1 = self:cellCoords(x1, y1)
-    x2, y2 = self:cellCoords(x2, y2)
+	x2, y2 = self:cellCoords(x2, y2)
-    for i = x1,x2 do
+	for i = x1,x2 do
-        for k = y1,y2 do
+		for k = y1,y2 do
-            rawset(self:cell(i,k), obj, obj)
+			rawset(self:cell(i,k), obj, obj)
-        end
+		end
-    end
+	end
 end
 
 function Spatialhash:remove(obj, x1, y1, x2,y2)
-    -- no bbox given. => must check all cells
+	-- no bbox given. => must check all cells
-    if not (x1 and y1 and x2 and y2) then
+	if not (x1 and y1 and x2 and y2) then
-        for _,row in pairs(self.cells) do
+		for _,row in pairs(self.cells) do
-            for _,cell in pairs(row) do
+			for _,cell in pairs(row) do
-                rawset(cell, obj, nil)
+				rawset(cell, obj, nil)
-            end
+			end
-        end
+		end
-        return
+		return
-    end
+	end
 
-    -- else: remove only from bbox
+	-- else: remove only from bbox
-    x1,y1 = self:cellCoords(x1,y1)
+	x1,y1 = self:cellCoords(x1,y1)
-    x2,y2 = self:cellCoords(x2,y2)
+	x2,y2 = self:cellCoords(x2,y2)
-    for i = x1,x2 do
+	for i = x1,x2 do
-        for k = y1,y2 do
+		for k = y1,y2 do
-            rawset(self:cell(i,k), obj, nil)
+			rawset(self:cell(i,k), obj, nil)
-        end
+		end
-    end
+	end
 end
 
 -- update an objects position
 function Spatialhash:update(obj, old_x1,old_y1, old_x2,old_y2, new_x1,new_y1, new_x2,new_y2)
-    old_x1, old_y1 = self:cellCoords(old_x1, old_y1)
+	old_x1, old_y1 = self:cellCoords(old_x1, old_y1)
-    old_x2, old_y2 = self:cellCoords(old_x2, old_y2)
+	old_x2, old_y2 = self:cellCoords(old_x2, old_y2)
 
-    new_x1, new_y1 = self:cellCoords(new_x1, new_y1)
+	new_x1, new_y1 = self:cellCoords(new_x1, new_y1)
-    new_x2, new_y2 = self:cellCoords(new_x2, new_y2)
+	new_x2, new_y2 = self:cellCoords(new_x2, new_y2)
 
-    if old_x1 == new_x1 and old_y1 == new_y1 and
+	if old_x1 == new_x1 and old_y1 == new_y1 and
-       old_x2 == new_x2 and old_y2 == new_y2 then
+	   old_x2 == new_x2 and old_y2 == new_y2 then
-        return
+		return
-    end
+	end
 
-    for i = old_x1,old_x2 do
+	for i = old_x1,old_x2 do
-        for k = old_y1,old_y2 do
+		for k = old_y1,old_y2 do
-            rawset(self:cell(i,k), obj, nil)
+			rawset(self:cell(i,k), obj, nil)
-        end
+		end
-    end
+	end
-    for i = new_x1,new_x2 do
+	for i = new_x1,new_x2 do
-        for k = new_y1,new_y2 do
+		for k = new_y1,new_y2 do
-            rawset(self:cell(i,k), obj, obj)
+			rawset(self:cell(i,k), obj, obj)
-        end
+		end
-    end
+	end
 end
 
 function Spatialhash:intersectionsWithSegment(x1, y1, x2, y2)
-    local odx, ody = x2 - x1, y2 - y1
+	local odx, ody = x2 - x1, y2 - y1
-    local len, cur = vector.len(odx, ody), 0
+	local len, cur = vector.len(odx, ody), 0
-    local dx, dy = vector.normalize(odx, ody)
+	local dx, dy = vector.normalize(odx, ody)
-    local step = self.cell_size / 2
+	local step = self.cell_size / 2
-    local visited = {}
+	local visited = {}
-    local points = {}
+	local points = {}
-    local mt = math.huge
+	local mt = math.huge
 
-    while (cur + step < len) do
+	while (cur + step < len) do
-        local cx, cy = x1 + dx * cur,  y1 + dy * cur
+		local cx, cy = x1 + dx * cur,  y1 + dy * cur
-        local shapes = self:cellAt(cx, cy)
+		local shapes = self:cellAt(cx, cy)
-        cur = cur + step
+		cur = cur + step
 
-        for _, shape in pairs(shapes) do
+		for _, shape in pairs(shapes) do
-            if (not visited[shape]) then
+			if (not visited[shape]) then
-                local ints = shape:intersectionsWithRay(x1, y1, dx, dy)
+				local ints = shape:intersectionsWithRay(x1, y1, dx, dy)
 
-                for _, t in ipairs(ints) do
+				for _, t in ipairs(ints) do
-                    if (t >= 0 and t <= len) then
+					if (t >= 0 and t <= len) then
-                        local px, py = vector.add(x1, y1, vector.mul(t, dx, dy))
+						local px, py = vector.add(x1, y1, vector.mul(t, dx, dy))
-                        table.insert(points, {shape, t, px, py})
+						table.insert(points, {shape, t, px, py})
-                    end
+					end
-                end
+				end
 
-                visited[shape] = true
+				visited[shape] = true
-            end
+			end
-        end
+		end
-    end
+	end
 
-    table.sort(points, function(a, b)
+	table.sort(points, function(a, b)
-        return a[2] < b[2]
+		return a[2] < b[2]
-    end)
+	end)
 
-    return points
+	return points
 end
 
 function Spatialhash:draw(how, show_empty, print_key)
-    if show_empty == nil then show_empty = true end
+	if show_empty == nil then show_empty = true end
-    for k1,v in pairs(self.cells) do
+	for k1,v in pairs(self.cells) do
-        for k2,cell in pairs(v) do
+		for k2,cell in pairs(v) do
-            local is_empty = (next(cell) == nil)
+			local is_empty = (next(cell) == nil)
-            if show_empty or not is_empty then
+			if show_empty or not is_empty then
-                local x = k1 * self.cell_size
+				local x = k1 * self.cell_size
-                local y = k2 * self.cell_size
+				local y = k2 * self.cell_size
-                love.graphics.rectangle(how or 'line', x,y, self.cell_size, self.cell_size)
+				love.graphics.rectangle(how or 'line', x,y, self.cell_size, self.cell_size)
 
-                if print_key then
+				if print_key then
-                    love.graphics.print(("%d:%d"):format(k1,k2), x+3,y+3)
+					love.graphics.print(("%d:%d"):format(k1,k2), x+3,y+3)
-                end
+				end
-            end
+			end
-        end
+		end
-    end
+	end
 end
 
-return common_local.class('Spatialhash', Spatialhash)
+return common_local.class('Spatialhash', Spatialhash)