From 48b9ee5ced72522a086146728f0772720bdfde7d Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Sat, 02 Mar 2013 14:46:45 -0500
Subject: src/main.c: Run a day->night palette cycling demo.

---
diff --git a/src/main.c b/src/main.c
index 3f20335..d2f10f9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -38,8 +38,6 @@ main(void)
 	if (map == NULL) {
 		err(1, "Where's the map, George?");
 	}
-	a = area_new(map);
-
 	for (i = 0; i < 256; ++i) {
 		colors[i].r = (i % 8) * 36;
 		colors[i].g = (i % 64 / 8) * 36;
@@ -48,14 +46,7 @@ main(void)
 	if (!SDL_SetPalette(vp->screen, SDL_LOGPAL, colors, 0, 256)) {
 		warn("Failed to set palette");
 	}
-	for (i = 0; i < 256; ++i) {
-		colors[i].r = i;
-		colors[i].g = i;
-		colors[i].b = i;
-	}
-/*	if (!SDL_SetPalette(vp->screen, SDL_PHYSPAL, colors, 0, 256)) {
-		warn("Failed to set palette");
-	}*/
+	a = area_new(map, vp);
 
 	for (e = map->map_exits_head; e != NULL; e = e->next) {
 		debug("Map exit (size %dx%d) at (%d,%d) "
@@ -67,7 +58,36 @@ main(void)
 				e->target_x_coord, e->target_y_coord);
 	}
 
+	render_area_to_viewport(a, vp);
+	{
+		float step;
+		for (step = 1.0; step >= 0.25; step -= 0.00390625) {
+			for (i = 0; i < 256; ++i) {
+				colors[i].r = (i % 8) * 36;
+				colors[i].g = (i % 64 / 8) * 36;
+				colors[i].b = (i / 64) * 85;
+				colors[i].r *= step;
+				colors[i].g *= step;
+				colors[i].b *= step;
+			}
+			if (!SDL_SetPalette(vp->screen, SDL_LOGPAL, colors, 0, 256)) {
+				warn("Failed to set palette");
+			}
+			SDL_Flip(vp->screen);
+			SDL_Delay(10);
+		}
+	}
+	SDL_Delay(1000);
+
 	/* Demo */
+	for (i = 0; i < 256; ++i) {
+		colors[i].r = (i % 8) * 36;
+		colors[i].g = (i % 64 / 8) * 36;
+		colors[i].b = (i / 64) * 85;
+	}
+	if (!SDL_SetPalette(vp->screen, SDL_LOGPAL, colors, 0, 256)) {
+		warn("Failed to set palette");
+	}
 	i = 0;
 	start = SDL_GetTicks();
 	x = 19 * map->tilewidth ;
--
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