From d1235174157bd498d0c148325d7c8066e3ab6ac7 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Mon, 15 Feb 2021 12:05:18 -0500
Subject: Added camera shake to lightning event

---
 src/effect_system.cpp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'src/effect_system.cpp')

diff --git a/src/effect_system.cpp b/src/effect_system.cpp
index 3a0afe4..74fc8f3 100644
--- a/src/effect_system.cpp
+++ b/src/effect_system.cpp
@@ -18,6 +18,22 @@ void EffectSystem::tick(double dt) {
 
     mapFade_ = (mapFadeDest_ - mapFadeStart_) / mapFadeLength_ * mapFadeThus_ + mapFadeStart_;
   }
+
+  if (cameraShaking_) {
+    cameraShakeTimer_.accumulate(dt);
+
+    while (cameraShakeTimer_.step()) {
+      cameraShakeOn_ = !cameraShakeOn_;
+    }
+
+    if (cameraShakeOn_) {
+      cameraShakeOffset_.x() = 8;
+      cameraShakeOffset_.y() = 8;
+    } else {
+      cameraShakeOffset_.x() = 0;
+      cameraShakeOffset_.y() = 0;
+    }
+  }
 }
 
 void EffectSystem::fadeScreen(int length, double amount) {
@@ -33,3 +49,15 @@ void EffectSystem::fadeMap(int length, double amount) {
   mapFadeLength_ = length;
   mapFadeThus_ = 0;
 }
+
+void EffectSystem::shakeCamera(int period) {
+  cameraShaking_ = true;
+  cameraShakeOffset_ = { 0, 0 };
+  cameraShakeOn_ = false;
+  cameraShakeTimer_ = Timer(period);
+}
+
+void EffectSystem::stopShakingCamera() {
+  cameraShaking_ = false;
+  cameraShakeOffset_ = { 0, 0 };
+}
-- 
cgit 1.4.1