From 40014ca4714c7a27fde28691a9a774d34f9a048a Mon Sep 17 00:00:00 2001
From: PS <slattery.peter.j@gmail.com>
Date: Thu, 8 Apr 2021 20:58:44 -1000
Subject: [PATCH] Rainbow Loading Pattern

---
 .../audio_responses/voice_command.foldanim    |  2 +-
 src/app/patterns/blumen_patterns.h            | 45 +++++++++++++++++++
 src/app/ss_blumen_lumen/blumen_lumen.cpp      |  1 +
 3 files changed, 47 insertions(+), 1 deletion(-)

diff --git a/app_run_tree/data/blumen_animations/audio_responses/voice_command.foldanim b/app_run_tree/data/blumen_animations/audio_responses/voice_command.foldanim
index b5b409a..8303d19 100644
--- a/app_run_tree/data/blumen_animations/audio_responses/voice_command.foldanim
+++ b/app_run_tree/data/blumen_animations/audio_responses/voice_command.foldanim
@@ -19,6 +19,6 @@ blocks:{
             max: 3599;
         };
         layer_index: 0;
-        animation_name: "Pattern_VoicePattern";
+        animation_name: "Pattern_RainbowLoadingBar";
     };
 };
diff --git a/src/app/patterns/blumen_patterns.h b/src/app/patterns/blumen_patterns.h
index bdfc539..e98594f 100644
--- a/src/app/patterns/blumen_patterns.h
+++ b/src/app/patterns/blumen_patterns.h
@@ -721,5 +721,50 @@ Pattern_GrowFadeMask(led_buffer* Leds, led_buffer_range Range, assembly Assembly
     }
 }
 
+internal void
+Pattern_RainbowLoadingBar(led_buffer* Leds, led_buffer_range Range, assembly Assembly, r32 Time, gs_memory_arena* Transient, u8* UserData)
+{
+    blumen_lumen_state* BLState = (blumen_lumen_state*)UserData;
+    Time = Time * BLState->PatternSpeed;
+    
+    // constants
+    r32 Period = 5.0f; // seconds
+    r32 CSpeed = 16.0f;
+    r32 HIncrement = CSpeed * Period;
+    r32 HOffset = CSpeed * Period;
+    r32 MaxSphereRadius = 300;
+    
+    // sphere
+    r32 ElapsedPct = FractR32(Time / Period);
+    r32 ElapsedPctGrow = PowR32(ElapsedPct, 2);
+    r32 Radius = MaxSphereRadius * ElapsedPctGrow;
+    v3 Origin = Assembly.Center - v3{0, 150, 0};
+    
+    // colors
+    r32 T = Time * CSpeed;
+    r32 TimeStep0 = T;
+    r32 TimeStep1 = T + HOffset;
+    r32 Hue0 = FloorR32(TimeStep0 / HIncrement) * HIncrement;
+    r32 Hue1 = FloorR32(TimeStep1 / HIncrement) * HIncrement;
+    v4 H0 = v4{ModR32(Hue0, 360), 1, 1, 1};
+    v4 H1 = v4{ModR32(Hue1, 360), 1, 1, 1};
+    pixel C0 = V4ToRGBPixel(HSVToRGB(H0));
+    pixel C1 = V4ToRGBPixel(HSVToRGB(H1));
+    
+    for (u32 LedIndex = Range.First; LedIndex < Range.OnePastLast; LedIndex++)
+    {
+        v3 P = Leds->Positions[LedIndex].xyz;
+        r32 Dist = V3Mag(P - Origin);
+        if (Dist < Radius)
+        {
+            Leds->Colors[LedIndex] = C1;
+        }
+        else
+        {
+            Leds->Colors[LedIndex] = C0;
+        }
+    }
+}
+
 #define BLUMEN_PATTERNS_H
 #endif // BLUMEN_PATTERNS_H
\ No newline at end of file
diff --git a/src/app/ss_blumen_lumen/blumen_lumen.cpp b/src/app/ss_blumen_lumen/blumen_lumen.cpp
index cef7f08..d9ed8bb 100644
--- a/src/app/ss_blumen_lumen/blumen_lumen.cpp
+++ b/src/app/ss_blumen_lumen/blumen_lumen.cpp
@@ -219,6 +219,7 @@ BlumenLumen_LoadPatterns(app_state* State)
     Patterns_PushPattern(Patterns, Pattern_PrimaryHue, PATTERN_MULTITHREADED);
     
     Patterns_PushPattern(Patterns, Pattern_GrowFadeMask, PATTERN_MULTITHREADED);
+    Patterns_PushPattern(Patterns, Pattern_RainbowLoadingBar, PATTERN_MULTITHREADED);
 }
 
 internal void