SUPERNOVA: Extends renderText()

Restructures the renderText() function for providing a renderText(text)
overload that starts rendering the string where the last call stopped.

2 files changed, 16 insertions, 0 deletions

diff --git a/engines/supernova/supernova.cpp b/engines/supernova/supernova.cpp
index 52bc379582..2e2957f0c4 100644
--- a/engines/supernova/supernova.cpp
+++ b/engines/supernova/supernova.cpp
@@ -355,6 +355,8 @@ void SupernovaEngine::removeMessage() {
 void SupernovaEngine::renderText(const char *text, int x, int y, byte color) {
 	Graphics::Surface *screen = _system->lockScreen();
 	byte *cursor = static_cast<byte *>(screen->getBasePtr(x, y));
+	const byte *basePtr = cursor;
+
 	byte c;
 	while ((c = *text++) != '\0') {
 		if (c < 32) {
@@ -380,6 +382,16 @@ void SupernovaEngine::renderText(const char *text, int x, int y, byte color) {
 		}
 	}
 	_system->unlockScreen();
+
+	size_t numChars = cursor - basePtr;
+	size_t absPosition = y * kScreenWidth + x + numChars;
+	_textCursorX = absPosition % kScreenWidth;
+	_textCursorY = absPosition / kScreenWidth;
+	_textColor = color;
+}
+
+void SupernovaEngine::renderText(const char *text) {
+	renderText(text, _textCursorX, _textCursorY, _textColor);
 }
 
 void SupernovaEngine::renderBox(int x, int y, int width, int height, byte color) {
diff --git a/engines/supernova/supernova.h b/engines/supernova/supernova.h
index d46da280fb..c1dc3013a7 100644
--- a/engines/supernova/supernova.h
+++ b/engines/supernova/supernova.h
@@ -91,6 +91,9 @@ public:
 	byte _brightness;
 	uint _delay;
 	bool _messageDisplayed;
+	int  _textCursorX;
+	int  _textCursorY;
+	int  _textColor;
 
 	uint getDOSTicks();
 	void initData();
@@ -109,6 +112,7 @@ public:
 	void renderMessage(const char *text, MessagePosition position = kMessageNormal);
 	void removeMessage();
 	void renderText(const char *text, int x, int y, byte color);
+	void renderText(const char *text);
 	void renderBox(int x, int y, int width, int height, byte color);
 	void setColor63(byte value);
 };