From ee9c2ac044cc77b80f30420c8f0788cad4281084 Mon Sep 17 00:00:00 2001 From: nsensfel Date: Wed, 6 Jun 2018 15:54:18 +0200 Subject: Figuring out how to organize the src folder(s)... --- src/battlemap/game-logic/bm_movement.erl | 58 ++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 src/battlemap/game-logic/bm_movement.erl (limited to 'src/battlemap/game-logic/bm_movement.erl') diff --git a/src/battlemap/game-logic/bm_movement.erl b/src/battlemap/game-logic/bm_movement.erl new file mode 100644 index 0000000..ed4c38c --- /dev/null +++ b/src/battlemap/game-logic/bm_movement.erl @@ -0,0 +1,58 @@ +-module(bm_movement). + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% TYPES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% EXPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +-export([cross/4]). + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% LOCAL FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% EXPORTED FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +-spec cross + ( + bm_battlemap:type(), + list(bm_location:type()), + list(bm_direction:enum()), + non_neg_integer(), + bm_location:type() + ) + -> {bm_location:type(), non_neg_integer()}. +cross (_Battlemap, _ForbiddenLocations, [], Cost, Location) -> + {Location, Cost}; +cross (Battlemap, ForbiddenLocations, [Step|NextSteps], Cost, Location) -> + NextLocation = bm_location:apply_direction(Step, Location), + NextTile = bm_battlemap:get_tile_id(NextLocation, Battlemap), + NextCost = (Cost + bm_tile:get_cost(NextTile)), + IsForbidden = + lists:foldl + ( + fun (ForbiddenLocation, Prev) -> + (Prev or (NextLocation == ForbiddenLocation)) + end, + false, + ForbiddenLocations + ), + + IsForbidden = false, + + cross(Battlemap, ForbiddenLocations, NextSteps, NextCost, NextLocation). + +-spec cross + ( + bm_battlemap:type(), + list(bm_location:type()), + list(bm_direction:enum()), + bm_location:type() + ) + -> {bm_location:type(), non_neg_integer()}. +cross (Battlemap, ForbiddenLocations, Path, Location) -> + cross(Battlemap, ForbiddenLocations, Path, 0, Location). -- cgit v1.2.3-70-g09d2