tgp_tropic.patch

diff --git a/src/tgp.cpp b/src/tgp.cpp
index 436870b..dc6de1c 100644
--- a/src/tgp.cpp
+++ b/src/tgp.cpp
@@ -457,6 +457,19 @@ static void HeightMapSineTransform(height_t h_min, height_t h_max)
 		fheight = (double)(*h - h_min) / (double)(h_max - h_min);
 		/* Apply sine transform depending on landscape type */
 		switch (_settings_game.game_creation.landscape) {
+			case LT_TROPIC:
+				{
+					/* Desert terrain needs special height distribution.
+					 * Half of tiles should be at lowest (0..25%) heights */
+					double sine_lower_limit = 0.5;
+					double linear_compression = 2;
+					if (fheight <= sine_lower_limit) {
+						/* Under the limit we do linear compression down */
+						fheight = fheight / linear_compression;
+						break;
+					}
+				}
+				FALLTHROUGH;
 			case LT_TOYLAND:
 			case LT_TEMPERATE:
 				/* Move and scale 0..1 into -1..+1 */
@@ -488,27 +501,6 @@ static void HeightMapSineTransform(height_t h_min, height_t h_max)
 				}
 				break;
 
-			case LT_TROPIC:
-				{
-					/* Desert terrain needs special height distribution.
-					 * Half of tiles should be at lowest (0..25%) heights */
-					double sine_lower_limit = 0.5;
-					double linear_compression = 2;
-					if (fheight <= sine_lower_limit) {
-						/* Under the limit we do linear compression down */
-						fheight = fheight / linear_compression;
-					} else {
-						double m = sine_lower_limit / linear_compression;
-						/* Get sine_lower_limit..1 into -1..1 */
-						fheight = 2.0 * ((fheight - sine_lower_limit) / (1.0 - sine_lower_limit)) - 1.0;
-						/* Sine wave transform */
-						fheight = sin(fheight * M_PI_2);
-						/* Get -1..1 back to (sine_lower_limit / linear_compression)..1.0 */
-						fheight = 0.5 * ((1.0 - m) * fheight + (1.0 + m));
-					}
-				}
-				break;
-
 			default:
 				NOT_REACHED();
 				break;