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-- --
-- tiled-code-gen --
-- --
-- Copyright (C) 2018 Fabien Chouteau --
-- --
-- --
-- Redistribution and use in source and binary forms, with or without --
-- modification, are permitted provided that the following conditions are --
-- met: --
-- 1. Redistributions of source code must retain the above copyright --
-- notice, this list of conditions and the following disclaimer. --
-- 2. Redistributions in binary form must reproduce the above copyright --
-- notice, this list of conditions and the following disclaimer in --
-- the documentation and/or other materials provided with the --
-- distribution. --
-- 3. Neither the name of the copyright holder nor the names of its --
-- contributors may be used to endorse or promote products derived --
-- from this software without specific prior written permission. --
-- --
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS --
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT --
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR --
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT --
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, --
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT --
-- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, --
-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY --
-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT --
-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE --
-- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --
-- --
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-- This package handles the collision shapes of tiles
--
-- The shapes are loaded from the tileset file in the Collisions objects and
-- users can then test if a given point is within one of the shapes.
with DOM.Core;
private with GNATCOLL.Geometry;
private with Ada.Containers.Doubly_Linked_Lists;
package TCG.Collision_Objects is
type Collisions is limited private;
procedure Load (This : in out Collisions;
N : DOM.Core.Node);
function Has_Collision (This : Collisions)
return Boolean;
-- Return true if there is at least one collision shape
function Collide (This : Collisions;
X, Y : Float)
return Boolean;
-- Return True if this coordinate is in one of the collision shapes
private
package Geometry is new GNATCOLL.Geometry (Float);
use Geometry;
type Shape_Kind is (Rectangle_Shape, Ellipse_Shape, Polygon_Shape);
type Collision_Shape (Kind : Shape_Kind := Rectangle_Shape) is record
case Kind is
when Rectangle_Shape | Ellipse_Shape =>
Rect : Polygon (1 .. 4);
when Polygon_Shape =>
Poly : not null access Polygon;
end case;
end record;
package Shape_List_Pck is new Ada.Containers.Doubly_Linked_Lists
(Collision_Shape);
type Collisions is limited record
List : Shape_List_Pck.List;
end record;
end TCG.Collision_Objects;