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engines/icb/common/px_staticlayers.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * Additional copyright for this file:
+ * Copyright (C) 1999-2000 Revolution Software Ltd.
+ * This code is based on source code created by Revolution Software,
+ * used with permission.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef ICB_PX_STATIC_LAYERS_H
+#define ICB_PX_STATIC_LAYERS_H
+
+#include "engines/icb/common/px_common.h"
+
+namespace ICB {
+
+#define PCLAYER_SCHEMA 1
+#define PCLAYER_ID MKTAG('r', 'y', 'a', 'L')
+
+#define TILE_WIDTH 64
+#define TILE_HEIGHT 48
+#define TILES_WIDE (640 / TILE_WIDTH)
+#define TILES_HIGH (480 / TILE_HEIGHT)
+#define TILE_COUNT (TILES_WIDE * TILES_HIGH)
+
+class pcStaticLayers {
+private:
+	char id[4];
+	uint32 schema;
+	uint32 mapping;
+	uint32 tilePtrs[TILE_COUNT]; // 10 x 10 array of tiles (null means an empty tile)
+	uint32 semiPtrs[TILE_COUNT]; // 10 x 10 array of tiles (null means an empty tile)
+
+	uint8 *DataStart() { return (uint8 *)id; }
+
+public:
+	uint16 *GetSemiTileTable(int32 idx) { return semiPtrs[idx] ? (uint16 *)(DataStart() + semiPtrs[idx]) : 0; }
+
+	uint16 *GetTileTable(int32 idx) { return tilePtrs[idx] ? (uint16 *)(DataStart() + tilePtrs[idx]) : 0; }
+
+	uint32 GetSchema() {
+		if (READ_LE_U32(id) != PCLAYER_ID)
+			return 0;
+		else
+			return schema;
+	}
+	pcStaticLayers () {
+		(void)mapping; // shutup warning
+	}
+};
+
+} // End of namespace ICB
+
+#endif // _PX_STATIC_LAYERS_H