From 31dc0e443efc0aae48e11a0d98e699dbed5c7dcf Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Wed, 10 Feb 2021 12:11:27 -0500
Subject: Added fade out around map change

Also moved script system first in the loop so that the camera can catch up before rendering. Also added a map change from map 2 back to map 1.
---
 src/game.h            |  5 +++++
 src/main.cpp          |  2 +-
 src/renderer.cpp      |  6 ++++++
 src/script_system.cpp | 10 ++++++++--
 4 files changed, 20 insertions(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/game.h b/src/game.h
index 8ea7576..bb88dec 100644
--- a/src/game.h
+++ b/src/game.h
@@ -79,6 +79,10 @@ public:
 
   const Font& getFont() const { return font_; }
 
+  double getFadeoutProgress() const { return fadeout_; }
+
+  void setFadeoutProgress(double val) { fadeout_ = val; }
+
 private:
 
   void clearSprites();
@@ -94,6 +98,7 @@ private:
   std::map<std::string, int> spritesByAlias_;
   std::unique_ptr<Map> map_;
   Font font_;
+  double fadeout_ = 0.0;
 };
 
 #endif /* end of include guard: GAME_H_E6F1396E */
diff --git a/src/main.cpp b/src/main.cpp
index 5f28408..8487077 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -14,13 +14,13 @@
 
 void loop(Renderer& renderer) {
   Game game(renderer);
+  game.emplaceSystem<ScriptSystem>();
   game.emplaceSystem<TransformSystem>();
   game.emplaceSystem<InputSystem>();
   game.emplaceSystem<CharacterSystem>();
   game.emplaceSystem<AnimationSystem>();
   game.emplaceSystem<CameraSystem>();
   game.emplaceSystem<MessageSystem>();
-  game.emplaceSystem<ScriptSystem>();
 
   game.loadMap("../res/maps/map1.tmx", "spawn");
 
diff --git a/src/renderer.cpp b/src/renderer.cpp
index e9db413..db5daed 100644
--- a/src/renderer.cpp
+++ b/src/renderer.cpp
@@ -234,6 +234,12 @@ void Renderer::render(Game& game) {
     }
   }
 
+  if (game.getFadeoutProgress() > 0.0) {
+    SDL_SetRenderDrawBlendMode(ren_.get(), SDL_BLENDMODE_BLEND);
+    SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, game.getFadeoutProgress() * 255);
+    SDL_RenderFillRect(ren_.get(), nullptr);
+  }
+
   SDL_SetRenderTarget(ren_.get(), nullptr);
   SDL_RenderCopy(ren_.get(), cameraTex.get(), nullptr, nullptr);
   SDL_RenderPresent(ren_.get());
diff --git a/src/script_system.cpp b/src/script_system.cpp
index 6e38905..a5e9403 100644
--- a/src/script_system.cpp
+++ b/src/script_system.cpp
@@ -56,6 +56,12 @@ ScriptSystem::ScriptSystem(Game& game) : game_(game) {
       game_.loadMap(filename, warpPoint);
     });
 
+  engine_.set_function(
+    "setFadeoutProgress",
+    [&] (double val) {
+      game_.setFadeoutProgress(val);
+    });
+
   engine_.script_file("../res/scripts/common.lua");
 }
 
@@ -64,7 +70,7 @@ void ScriptSystem::tick(double dt) {
     auto result = (*callable_)(dt);
     if (!result.valid()) {
       sol::error e = result;
-      throw std::runtime_error(e.what());
+      throw e;
     }
 
     if (!*callable_) {
@@ -90,7 +96,7 @@ void ScriptSystem::runScript(std::string name) {
   auto result = (*callable_)();
   if (!result.valid()) {
     sol::error e = result;
-    throw std::runtime_error(e.what());
+    throw e;
   }
 
   if (!*callable_) {
-- 
cgit 1.4.1