ACCESS: More work on inventory screen setup

engines/access/asurface.cpp

@@ -208,6 +208,9 @@ void ASurface::plotImage(SpriteResource *sprite, int frameNum, const Common::Poi
 }
 
 void ASurface::copyTo(ASurface *dest, const Common::Point &destPos) {
+	if (dest->getPixels() == nullptr)
+		dest->create(w, h);
+
 	for (int yp = 0; yp < h; ++yp) {
 		byte *srcP = (byte *)getBasePtr(0, yp);
 		byte *destP = (byte *)dest->getBasePtr(destPos.x, destPos.y + yp);

engines/access/files.cpp

@@ -104,17 +104,21 @@ void FileManager::openFile(const Common::String &filename) {
 	_filesize = _file.size();
 }
 
-void FileManager::loadScreen(int fileNum, int subfile) {
+void FileManager::loadScreen(Graphics::Surface *dest, int fileNum, int subfile) {
 	setAppended(fileNum);
 	gotoAppended(subfile);
 	_vm->_screen->loadPalette(_stream);
 
 	// Get the data for the screen, and copy it over
 	byte *pSrc = handleFile();
-	Common::copy(pSrc, pSrc + _filesize, (byte *)_vm->_screen->getPixels());
+	Common::copy(pSrc, pSrc + _filesize, (byte *)dest->getPixels());
 	delete[] pSrc;
 }
 
+void FileManager::loadScreen(int fileNum, int subfile) {
+	loadScreen(_vm->_screen, fileNum, subfile);
+}
+
 void FileManager::loadScreen(const Common::String &filename) {
 	// Open the file
 	openFile(filename);

engines/access/files.h

@@ -26,6 +26,7 @@
 #include "common/scummsys.h"
 #include "common/array.h"
 #include "common/file.h"
+#include "graphics/surface.h"
 #include "access/decompress.h"
 
 namespace Access {
@@ -96,6 +97,11 @@ class FileManager {
 	*/
 	void loadScreen(const Common::String &filename);
 
+	/**
+	 * Load a screen resource onto a designated surface
+	 */
+	void loadScreen(Graphics::Surface *dest, int fileNum, int subfile);
+
 	/**
 	 * Open up a sub-file container file
 	 */

engines/access/inventory.cpp

@@ -54,6 +54,11 @@ InventoryManager::InventoryManager(AccessEngine *vm) : Manager(vm) {
 
 	for (uint i = 0; i < _inv.size(); ++i)
 		_names.push_back(names[i]);
+
+	for (uint i = 0; i < 26; ++i) {
+		const int *r = INVCOORDS[i];
+		_invCoords.push_back(Common::Rect(r[0], r[1], r[0] + r[2], r[1] + r[3]));
+	}
 }
 
 int &InventoryManager::operator[](int idx) {
@@ -95,7 +100,7 @@ int InventoryManager::newDisplayInv() {
 	getList();
 	initFields();
 
-	files.loadScreen(99, 0);
+	_vm->_files->loadScreen(&_vm->_buffer1, 99, 0);
 	_vm->_buffer1.copyTo(&_vm->_buffer2);
 	_vm->copyBF2Vid();
 
@@ -267,14 +272,43 @@ void InventoryManager::putInvIcon(int itemIndex, int itemId) {
 }
 
 void InventoryManager::chooseItem() {
+	EventsManager &events = *_vm->_events;
 	_vm->_useItem = -1;
-
-	error("TODO: chooseItem");
+	int selIndex;
+
+	while (!_vm->shouldQuit()) {
+		g_system->delayMillis(10);
+
+		// Poll events and wait for a click on a known area
+		events.pollEvents();
+		if (!events._leftButton || ((selIndex = coordIndexOf()) == -1))
+			continue;
+
+		if (selIndex > 23) {
+			if (selIndex == 25)
+				_vm->_useItem = -1;
+			break;
+		} else if (selIndex < (int)_items.size()) {
+			warning("TODO: Combine items");
+		}
+	}
 }
 
 void InventoryManager::freeInvCells() {
 	delete _vm->_objectsTable[99];
 	_vm->_objectsTable[99] = nullptr;
 }
 
+int InventoryManager::coordIndexOf() {
+	const Common::Point pt = _vm->_events->_mousePos;
+
+	for (int i = 0; i < (int)_invCoords.size(); ++i) {
+		if (_invCoords[i].contains(pt))
+			return i;
+	}
+
+	return -1;
+}
+
+
 } // End of namespace Access

engines/access/inventory.h

@@ -53,6 +53,7 @@ class InventoryManager : public Manager {
 	};
 private:
 	Common::Array<int> _items;
+	Common::Array<Common::Rect> _invCoords;
 	ASurface _savedBuffer1;
 	ASurface _savedScreen;
 	SavedFields _fields;
@@ -73,6 +74,8 @@ class InventoryManager : public Manager {
 	void chooseItem();
 
 	void freeInvCells();
+
+	int coordIndexOf();
 public:
 	Common::Array<int> _inv;
 	Common::StringArray _names;