Implement FadeProgress class (#110)

src/Game/UI/uiFadeProgress.cpp

@@ -0,0 +1,56 @@
+#include "Game/UI/uiFadeProgress.h"
+#include "Game/UI/uiUtils.h"
+
+namespace uking::ui {
+
+SEAD_SINGLETON_DISPOSER_IMPL(FadeProgress)
+
+void FadeProgress::init() {
+    mActive = false;
+    mProgress = 0.0;
+    mGaugeValue = 0.0;
+    mSteps = 1.0;
+}
+
+void FadeProgress::reset() {
+    init();
+}
+
+void FadeProgress::updateFadeScreen() {
+    if (!mActive)
+        return;
+
+    float progress = mProgress;
+    float difference = progress - mGaugeValue;
+
+    if (difference > 0.1f)
+        mSteps = 1.1;
+    if (difference > 0.2f)
+        mSteps = 1.2;
+    if (progress > 0.94f)
+        mSteps = 10.0;
+
+    if (difference <= 0.0001f && difference >= -0.0001f)
+        mSteps = 1.0;
+
+    float new_progress = mGaugeValue + (mProgressPerStep * mSteps);
+    if (new_progress < progress)
+        progress = new_progress;
+    mGaugeValue = progress;
+    applyScreenFade(progress);
+}
+
+void FadeProgress::setProgress(float value) {
+    if (mProgress < value)
+        mProgress = value;
+}
+
+float FadeProgress::getGaugeValue() const {
+    return mGaugeValue;
+}
+
+void FadeProgress::setIsActive() {
+    mActive = true;
+}
+
+}  // namespace uking::ui