Add WIP findSpriteWithClassOf() function

svn-id: r16914

4 files changed, 92 insertions, 14 deletions

diff --git a/scumm/intern.h b/scumm/intern.h
index 3e48bdf504..f7ffe5f31c 100644
--- a/scumm/intern.h
+++ b/scumm/intern.h
@@ -875,7 +875,7 @@ protected:
 	uint8 getWizPixelColor(int restype, int resnum, int state, int x, int y, int flags);
 	int computeWizHistogram(int resnum, int state, int x, int y, int w, int h);
 	
-	int spriteInfoGet_case15(int a, int b, int c, int d, int num, int *args);
+	int findSpriteWithClassOf(int x, int y, int spriteGroup, int d, int num, int *args);
 	int spriteInfoGet_classFlags(int spriteId, int num);
 	int spriteInfoGet_classFlagsAnd(int spriteId, int num, int *args);
 	int spriteInfoGet_flags_13(int spriteId);
diff --git a/scumm/script_v100he.cpp b/scumm/script_v100he.cpp
index 9180e27a53..f61e880dd8 100644
--- a/scumm/script_v100he.cpp
+++ b/scumm/script_v100he.cpp
@@ -2425,7 +2425,7 @@ void ScummEngine_v100he::o100_getSpriteInfo() {
 		d = pop();
 		e = pop();
 		f = pop();
-		push(spriteInfoGet_case15(f, e, d, c, flags, args));
+		push(findSpriteWithClassOf(f, e, d, c, flags, args));
 		break;
 	case 38:
 		spriteId = pop();
diff --git a/scumm/script_v90he.cpp b/scumm/script_v90he.cpp
index 90276a1934..8df4eccf18 100644
--- a/scumm/script_v90he.cpp
+++ b/scumm/script_v90he.cpp
@@ -829,18 +829,18 @@ void ScummEngine_v90he::o90_getSpriteInfo() {
 			d = pop();
 			e = pop();
 			f = pop();
-			push(spriteInfoGet_case15(f, e, d, c, flags, args));
+			push(findSpriteWithClassOf(f, e, d, c, flags, args));
 		} else if (_heversion == 98) {
-			pop();
-			pop();
-			pop();
-			pop();
-			push(0);
+			c = pop();
+			d = pop();
+			e = pop();
+			f = pop();
+			push(findSpriteWithClassOf(f, e, d, c, 0, 0));
 		} else {
-			pop();
-			pop();
-			pop();
-			push(0);
+			d = pop();
+			e = pop();
+			f = pop();
+			push(findSpriteWithClassOf(f, e, d, 0, 0, 0));
 		}
 		break;
 	case 22:
diff --git a/scumm/sprite_he.cpp b/scumm/sprite_he.cpp
index 1ac7a21e61..4afbbbca72 100644
--- a/scumm/sprite_he.cpp
+++ b/scumm/sprite_he.cpp
@@ -39,8 +39,86 @@ void ScummEngine_v90he::allocateArrays() {
 //
 // spriteInfoGet functions
 //
-int ScummEngine_v90he::spriteInfoGet_case15(int a, int b, int c, int d, int num, int *args) {
-	// TODO
+int ScummEngine_v90he::findSpriteWithClassOf(int x, int y, int spriteGroup, int d, int num, int *args) {
+	int classId;
+	debug(1, "findSprite: x %d, y %d, spriteGroup %d, d %d, num %d\n", x, y, spriteGroup, d, num);
+
+	for (int i = 0; i < _numSpritesToProcess; ++i) {
+		SpriteInfo *spi = _activeSpritesTable[i];
+		if (!spi->field_4C)
+			continue;
+
+		if (spriteGroup && spi->group_num != spi->field_4C)
+			continue;
+
+		for (int j = 0; j < num; j++) {
+			classId = args[j] & 0x7F;
+			checkRange(32, 1, classId, "class %d out of range in statement");
+			if (!(spi->class_flags & (1 << classId)))
+				continue;
+		}
+
+		if (d != 0) {
+			if (spi->bbox.left > spi->bbox.right)
+				continue;
+			if (spi->bbox.top > spi->bbox.bottom)
+				continue;
+			if (spi->bbox.left > x)
+				continue;
+			if (spi->bbox.top > y)
+				continue;
+			if (spi->bbox.right < x)
+				continue;
+			if (spi->bbox.bottom < y)
+				continue;
+			return i;
+		} else {
+			int state;
+			int resId = spi->field_4C;
+
+			if (spi->field_80) {
+				int16 x1, x2, y1, y2;
+
+				state = getWizImageStates(spi->field_80);
+				state /= spi->field_48;
+
+				x -= spi->field_34;
+				y -= spi->field_38;
+
+				loadImgSpot(spi->field_4C, state, x1, y1);
+				loadImgSpot(spi->field_80, state, x2, y2);
+
+				x += (x2 - x1);
+				y += (y2 - y1);
+			} else {
+				if (spi->bbox.left > spi->bbox.right)
+					continue;
+				if (spi->bbox.top > spi->bbox.bottom)
+					continue;
+				if (spi->bbox.left > x)
+					continue;
+				if (spi->bbox.top > y)
+					continue;
+				if (spi->bbox.right < x)
+					continue;
+				if (spi->bbox.bottom < y)
+					continue;
+
+				x -= spi->field_34;
+				y -= spi->field_38;
+				state = spi->field_48;
+			}
+
+			if ((spi->flags & kSFZoomed) || (spi->flags & kSFRotated)) {
+				// TODO
+
+			}
+
+			if(isWizPixelNonTransparent(rtImage, resId, state, x, y, spi->imgFlags));
+				return i;
+		}
+	}
+
 	return 0;
 }