From ee7077c7ff0c22a4909c15ab34aed777b45b977e Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Wed, 10 Feb 2021 18:06:35 -0500
Subject: Direction is preserved across map transitions now

---
 res/scripts/common.lua | 28 ++++++++++++++++++++++++++++
 src/script_system.cpp  | 26 +++++++++++++++++++++++++-
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/res/scripts/common.lua b/res/scripts/common.lua
index f43b2e0..0c0205b 100644
--- a/res/scripts/common.lua
+++ b/res/scripts/common.lua
@@ -7,6 +7,17 @@ SpeakerType = {
   NONHUMAN = 5
 }
 
+Direction = {
+  UP = 0,
+  UP_RIGHT = 1,
+  RIGHT = 2,
+  DOWN_RIGHT = 3,
+  DOWN = 4,
+  DOWN_LEFT = 5,
+  LEFT = 6,
+  UP_LEFT = 7
+}
+
 function DisplayMessage(msg, name, type)
   message():displayMessage(msg, name, type)
 end
@@ -57,9 +68,26 @@ function RemoveFadeout(length)
   setFadeoutProgress(0.0)
 end
 
+function SetPartyDirection(spriteId, direction)
+  animation():setSpriteDirection(spriteId, direction)
+
+  local sprite = getSprite(spriteId)
+
+  for i=1,#sprite.followers do
+    animation():setSpriteDirection(sprite.followers[i], direction)
+  end
+end
+
 function ChangeMap(map, warp)
+  local playerId = getControllableSprite()
+  local playerSprite = getSprite(playerId)
+  local direction = playerSprite.dir
+
   FadeToBlack(150)
   loadMap("../res/maps/" .. map .. ".tmx", warp)
+
+  local newPlayerId = getControllableSprite()
+  SetPartyDirection(newPlayerId, direction)
   coroutine.yield()
   RemoveFadeout(150)
 end
diff --git a/src/script_system.cpp b/src/script_system.cpp
index a5e9403..6b35b73 100644
--- a/src/script_system.cpp
+++ b/src/script_system.cpp
@@ -10,6 +10,11 @@ ScriptSystem::ScriptSystem(Game& game) : game_(game) {
     sol::lib::coroutine,
     sol::lib::math);
 
+  engine_.new_usertype<Sprite>(
+    "sprite",
+    "dir", &Sprite::dir,
+    "followers", &Sprite::followers);
+
   engine_.new_usertype<MessageSystem>(
     "message",
     "displayMessage", &MessageSystem::displayMessage,
@@ -18,7 +23,8 @@ ScriptSystem::ScriptSystem(Game& game) : game_(game) {
 
   engine_.new_usertype<AnimationSystem>(
     "animation",
-    "setSpriteAnimation", &AnimationSystem::setSpriteAnimation);
+    "setSpriteAnimation", &AnimationSystem::setSpriteAnimation,
+    "setSpriteDirection", &AnimationSystem::setSpriteDirection);
 
   engine_.new_usertype<Mixer>(
     "mixer",
@@ -50,6 +56,24 @@ ScriptSystem::ScriptSystem(Game& game) : game_(game) {
       return game_.getSpriteByAlias(alias);
     });
 
+  engine_.set_function(
+    "getControllableSprite",
+    [&] () -> int {
+      for (int id : game_.getSprites()) {
+        Sprite& sprite = game_.getSprite(id);
+        if (sprite.controllable) {
+          return id;
+        }
+      }
+      return -1;
+    });
+
+  engine_.set_function(
+    "getSprite",
+    [&] (int id) -> Sprite& {
+      return game_.getSprite(id);
+    });
+
   engine_.set_function(
     "loadMap",
     [&] (std::string filename, std::string warpPoint) {
-- 
cgit 1.4.1