From ce0628c5ad96e094db12a67d4e98b445fa873ad3 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Sun, 14 Feb 2021 16:13:08 -0500
Subject: Added map fadeouts

Screen fadeouts and map fadeouts are now handled by the effect system.
---
 src/effect_system.cpp | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 src/effect_system.cpp

(limited to 'src/effect_system.cpp')

diff --git a/src/effect_system.cpp b/src/effect_system.cpp
new file mode 100644
index 0000000..3a0afe4
--- /dev/null
+++ b/src/effect_system.cpp
@@ -0,0 +1,35 @@
+#include "effect_system.h"
+
+void EffectSystem::tick(double dt) {
+  if (screenFade_ != screenFadeDest_) {
+    screenFadeThus_ += dt;
+    if (screenFadeThus_ >= screenFadeLength_) {
+      screenFadeThus_ = screenFadeLength_;
+    }
+
+    screenFade_ = (screenFadeDest_ - screenFadeStart_) / screenFadeLength_ * screenFadeThus_ + screenFadeStart_;
+  }
+
+  if (mapFade_ != mapFadeDest_) {
+    mapFadeThus_ += dt;
+    if (mapFadeThus_ >= mapFadeLength_) {
+      mapFadeThus_ = mapFadeLength_;
+    }
+
+    mapFade_ = (mapFadeDest_ - mapFadeStart_) / mapFadeLength_ * mapFadeThus_ + mapFadeStart_;
+  }
+}
+
+void EffectSystem::fadeScreen(int length, double amount) {
+  screenFadeStart_ = screenFade_;
+  screenFadeDest_ = amount;
+  screenFadeLength_ = length;
+  screenFadeThus_ = 0;
+}
+
+void EffectSystem::fadeMap(int length, double amount) {
+  mapFadeStart_ = mapFade_;
+  mapFadeDest_ = amount;
+  mapFadeLength_ = length;
+  mapFadeThus_ = 0;
+}
-- 
cgit 1.4.1