added script opcode for dig minigame

svn-id: r6834

2 files changed, 35 insertions, 1 deletions

diff --git a/scumm/intern.h b/scumm/intern.h
index 8af677560c..4f9d704c87 100644
--- a/scumm/intern.h
+++ b/scumm/intern.h
@@ -377,6 +377,7 @@ protected:
 	void o6_pickVarRandom();
 	void o6_getDateTime();
 	void o6_unknownE0();
+	void o6_unknownE1();
 	void o6_unknownE4();
 	void o6_localizeArray();
 	void o6_shuffle();
diff --git a/scumm/script_v6.cpp b/scumm/script_v6.cpp
index 23440e47c9..009415172c 100644
--- a/scumm/script_v6.cpp
+++ b/scumm/script_v6.cpp
@@ -323,7 +323,7 @@ void Scumm_v6::setupOpcodes() {
 		OPCODE(o6_invalid),
 		/* E0 */
 		OPCODE(o6_unknownE0),
-		OPCODE(o6_invalid),
+		OPCODE(o6_unknownE1),
 		OPCODE(o6_localizeArray),
 		OPCODE(o6_pickVarRandom),
 		/* E4 */
@@ -2922,6 +2922,39 @@ void Scumm_v6::o6_getDateTime() {
 		_vars[VAR_TIMEDATE_SECOND] = t->tm_sec;
 }
 
+void Scumm_v6::o6_unknownE1() {
+	// this opcode check ground area in minigame in the dig
+	int x = pop();
+	int y = pop();
+
+	if (x > _realWidth - 1) {
+		push(-1);
+		return;
+	}
+	if (x < 0) {
+		push(-1);
+		return;
+	}
+
+	if (y < 0) {
+		push(-1);
+		return;
+	}
+	
+	VirtScreen *vs = findVirtScreen(y);
+
+	if (vs == NULL) {
+		push(-1);
+		return;
+	}
+
+	// FIXME: something is wrong, it take wrong position or wrong buffer check
+	int offset = (y - vs->topline) * _realWidth + x + vs->tdirty[0];
+
+	byte area = *(getResourceAddress(rtBuffer, vs->number + 1) + offset);
+	push(area);
+}
+
 void Scumm_v6::o6_unknownE0() {
 	int a = fetchScriptByte();
 	warning("o6_unknownEO(%d) stub", a);