LOL: implemented king richard healing sequence

svn-id: r41314

1 files changed, 34 insertions, 0 deletions

diff --git a/engines/kyra/screen_lol.cpp b/engines/kyra/screen_lol.cpp
index 5f64a1cddd..3f3aef72fe 100644
--- a/engines/kyra/screen_lol.cpp
+++ b/engines/kyra/screen_lol.cpp
@@ -934,6 +934,40 @@ bool Screen_LoL::fadePaletteStep(uint8 *pal1, uint8 *pal2, uint32 elapsedTime, u
 	return res;
 }
 
+uint8 *Screen_LoL::generateFadeTable(uint8 *dst, uint8 *src1, uint8 *src2, int numTabs) {
+	if (!src1)
+		src1 = _screenPalette;
+
+	uint8 *p1 = dst;
+	uint8 *p2 = src1;
+	uint8 *p3 = src2;
+
+	for (int i = 0; i < 768; i++) {
+		int8 val = (int8)*p3++ - (int8)*p2++;
+		*dst++ = (uint8)val;
+	}
+
+	int16 t = 0;
+	int16 d = 256 / numTabs;
+		
+	for (int i = 1; i < numTabs - 1; i++) {
+		p2 = src1;
+		p3 = p1;
+		t += d;
+
+		for (int ii = 0; ii < 768; ii++) {
+			int val = (((int8)*p3++ * t) >> 8) + (int8)*p2++;
+			*dst++ = (uint8)val;
+		}
+	}
+
+	memcpy(p1, src1, 768);
+	memcpy(dst, src2, 768);
+
+	dst += 768;
+	return dst;
+}
+
 uint8 Screen_LoL::getShapePaletteSize(const uint8 *shp) {
 	return shp[10];
 }