modules/world: add a Bump2D world backend

gamecore/modules/world/world2D.lua

@@ -0,0 +1,68 @@
+-- world2D.lua :: a basic 2D world based on bump2D.
+
+--[[
+  Copyright © 2019 Kazhnuz
+
+  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.
+
+  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 AUTHORS OR
+  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+]]
+
+local cwd   = (...):gsub('%.baseworld$', '') .. "."
+
+local BaseWorld = require(cwd .. "baseworld")
+local World2D   = BaseWorld:extend()
+
+local Sti   = require(cwd .. "libs.sti")
+local Bump  = require(cwd .. "libs.bump")
+
+function World2D:new(scene, actorlist, mapfile)
+  self.scene = scene
+
+  self:initPlayers()
+  self:setActorList(actorlist)
+  self:setMap(mapfile)
+  self.actors = Bump.newWorld(50)
+end
+
+-- ACTORS FUNCTIONS
+-- Wrappers around Bump2D functions
+
+function World2D:registerActor(actor)
+  return self.actors:add(actor, actor.x, actor.y, actor.w, actor.h)
+end
+
+function World2D:removeActor(actor)
+  return self.actors:remove(actor)
+end
+
+function World2D:moveActor(actor, x, y, filter)
+  return self.actors:move(actor, x, y, filter)
+end
+
+function World2D:queryRect(x, y, w, h)
+  return self.actors:queryRect(x, y, w, h)
+end
+
+function World2D:countActors()
+  return self.actors:countItems()
+end
+
+function World2D:getActors()
+  return self.actors:getItems()
+end
+
+return World2D