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engines/twine/scene/extra.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.
+ *
+ * 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 TWINE_SCENE_EXTRA_H
+#define TWINE_SCENE_EXTRA_H
+
+#include "common/scummsys.h"
+#include "common/rect.h"
+#include "twine/scene/actor.h"
+
+namespace TwinE {
+
+#define EXTRA_MAX_ENTRIES 50
+
+#define EXTRA_SPECIAL_MASK 0x8000
+
+struct ShapeData {
+	int16 x;
+	int16 z;
+};
+
+struct ExtraShape {
+	int n;
+	const ShapeData *data;
+};
+
+enum ExtraType {
+	TIME_OUT = 1 << 0,        // 0x0001
+	FLY = 1 << 1,             // 0x0002
+	END_OBJ = 1 << 2,         // 0x0004
+	END_COL = 1 << 3,         // 0x0008
+	STOP_COL = 1 << 4,        // 0x0010
+	TAKABLE = 1 << 5,         // 0x0020
+	FLASH = 1 << 6,           // 0x0040
+	SEARCH_OBJ = 1 << 7,      // 0x0080
+	IMPACT = 1 << 8,          // 0x0100
+	MAGIC_BALL_KEY = 1 << 9,  // 0x0200
+	TIME_IN = 1 << 10,        // 0x0400
+	ONE_FRAME = 1 << 11,      // 0x0800
+	EXPLOSION = 1 << 12,      // 0x1000 EXTRA_EXPLO
+	WAIT_NO_COL = 1 << 13,    // 0x2000 EXTRA_WAIT_NO_COL
+	WAIT_SOME_TIME = 1 << 14, // 0x4000
+	COMPUTE_TRAJ = 1 << 15    // 0x8000 used in dotemu enhanced to render the magic ball trajectories
+};
+
+struct ExtraListStruct {
+	int16 sprite = 0; /**< a value of -1 indicates that this instance is free to use */
+	IVec3 pos;
+	IVec3 lastPos;
+	IVec3 destPos;
+
+	RealValue trackActorMove;
+
+	uint16 type = 0; /**< ExtraType bitmask */
+	int16 angle = 0; // weight
+	int32 spawnTime = 0; // memo timer 50hz
+	union payload { // field_ 1C
+		int16 lifeTime;
+		int16 actorIdx;
+		int16 extraIdx;
+		int16 unknown;
+	} payload{0};
+	int16 strengthOfHit = 0; // apply damage if != 0
+	int16 info1 = 0;         // various - number for zone giver
+};
+
+class TwinEEngine;
+
+class Extra {
+private:
+	TwinEEngine *_engine;
+
+	void initFly(ExtraListStruct *extra, int32 xAngle, int32 yAngle, int32 x, int32 extraAngle);
+	void bounceExtra(ExtraListStruct *extra, int32 x, int32 y, int32 z);
+	int32 searchBonusKey() const;
+	int32 extraSearchKey(int32 actorIdx, int32 x, int32 y, int32 z, int32 spriteIdx, int32 extraIdx);
+	void aff2DShape(const ExtraShape &shapeTable, int32 x, int32 y, int32 color, int32 angle, int32 zoom, Common::Rect &renderRect);
+
+public:
+	Extra(TwinEEngine *engine);
+	ExtraListStruct _extraList[EXTRA_MAX_ENTRIES];
+
+	int32 extraSearch(int32 actorIdx, int32 x, int32 y, int32 z, int32 spriteIdx, int32 targetActor, int32 maxSpeed, int32 strengthOfHit);
+
+	/**
+	 * Add extra explosion
+	 * @param x Explosion X coordinate
+	 * @param y Explosion Y coordinate
+	 * @param z Explosion Z coordinate
+	 */
+	int32 addExtraExplode(int32 x, int32 y, int32 z);
+
+	inline int32 extraExplo(const IVec3 &pos) {
+		return addExtraExplode(pos.x, pos.y, pos.z);
+	}
+
+	/** Reset all used extras */
+	void clearExtra();
+
+	int32 initSpecial(int32 x, int32 y, int32 z, ExtraSpecialType type);
+	int32 addExtraBonus(int32 x, int32 y, int32 z, int32 xAngle, int32 yAngle, int32 type, int32 bonusAmount);
+
+	inline int32 addExtraBonus(const IVec3 &pos, int32 xAngle, int32 yAngle, int32 type, int32 bonusAmount) {
+		return addExtraBonus(pos.x, pos.y, pos.z, xAngle, yAngle, type, bonusAmount);
+	}
+
+	int32 throwExtra(int32 actorIdx, int32 x, int32 y, int32 z, int32 spriteIdx, int32 xAngle, int32 yAngle, int32 xRotPoint, int32 extraAngle, int32 strengthOfHit);
+	int32 addExtraAiming(int32 actorIdx, int32 x, int32 y, int32 z, int32 spriteIdx, int32 targetActorIdx, int32 finalAngle, int32 strengthOfHit);
+	void addExtraThrowMagicball(int32 x, int32 y, int32 z, int32 xAngle, int32 yAngle, int32 xRotPoint, int32 extraAngle);
+
+	void affSpecial(int32 extraIdx, int32 x, int32 y, Common::Rect &renderRect);
+
+	int getBonusSprite(BonusParameter bonusParameter) const;
+
+	/** Process extras */
+	void gereExtras();
+};
+
+} // namespace TwinE
+
+#endif