From 3eeb4d7fc2e2594c66d229ddb4fe3533b4f4dc7f Mon Sep 17 00:00:00 2001
From: drummyfish <drummyfish@disroot.org>
Date: Tue, 24 Dec 2024 01:41:45 +0100
Subject: [PATCH] Continue engine

---
 audio.h | 26 ++++++++++++++++++++------
 game.h  |  2 +-
 2 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/audio.h b/audio.h
index 0619c1d..062e9b0 100644
--- a/audio.h
+++ b/audio.h
@@ -23,7 +23,7 @@ struct
 
 int engineIntensity;
 int engineOsc;
-
+int engineInc;
 
 
 
@@ -38,8 +38,12 @@ void LCR_audioInit(void)
   LCR_audio.noise = 0;
 
 LCR_audio.engineOsc = 0;
+
+LCR_audio.engineInc = 1;
+
 LCR_audio.engineIntensity = 0;
 
+
 }
 
 void LCR_audioSetEngineIntensity(uint8_t value)
@@ -59,17 +63,27 @@ uint8_t _LCR_audioNoise(void)
   return LCR_audio.noise >> 16;
 }
 
+
 uint8_t LCR_audioGetNextSample(void)
 {
   unsigned char result = 128;
 
-  if (LCR_audio.engineIntensity > 5)
+  //if (LCR_audio.engineIntensity)
   {
-    LCR_audio.engineOsc += 
-      ((_LCR_audioNoise() % 256) < 
-        (30 + LCR_audio.engineIntensity));
+    LCR_audio.engineOsc +=
+      LCR_audio.engineInc ?
+        (((_LCR_audioNoise() % 256) <
+        (10 + LCR_audio.engineIntensity))) : -31;
 
-    result += LCR_audio.engineOsc;
+    if (LCR_audio.engineInc && LCR_audio.engineOsc >
+      (90 + (LCR_audio.engineIntensity / 8)))
+      LCR_audio.engineInc = 0;
+    else if ((!LCR_audio.engineInc) && LCR_audio.engineOsc < 10)
+      LCR_audio.engineInc = 1;
+
+    result +=
+      LCR_audio.engineIntensity < 20 ?
+        LCR_audio.engineOsc / 2 : LCR_audio.engineOsc;
   }
 
   LCR_audio.frame++;
diff --git a/game.h b/game.h
index 14b225e..6581ad2 100644
--- a/game.h
+++ b/game.h
@@ -396,7 +396,7 @@ LCR_GameUnit physicsInterpolationParam = LCR_GAME_UNIT -
 
     int val = LCR_carSpeedKMH();
 
-LCR_audioSetEngineIntensity(val < 256 ? val : 255);
+LCR_audioSetEngineIntensity((2 * val) < 256 ? (2 * val) : 255);
 
     if (val < 5) // don't show tiny oscillations when still
       val = 0;