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engines/wintermute/base/particles/part_emitter.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/>.
+ *
+ */
+
+/*
+ * This file is based on WME Lite.
+ * http://dead-code.org/redir.php?target=wmelite
+ * Copyright (c) 2011 Jan Nedoma
+ */
+
+#ifndef WINTERMUTE_PARTEMITTER_H
+#define WINTERMUTE_PARTEMITTER_H
+
+
+#include "engines/wintermute/base/base_object.h"
+#include "engines/wintermute/base/particles/part_force.h"
+
+namespace Wintermute {
+class BaseRegion;
+class PartParticle;
+class PartEmitter : public BaseObject {
+public:
+	DECLARE_PERSISTENT(PartEmitter, BaseObject)
+
+	PartEmitter(BaseGame *inGame, BaseScriptHolder *owner);
+	~PartEmitter() override;
+
+	int32 _width;
+	int32 _height;
+
+	int32 _angle1;
+	int32 _angle2;
+
+	float _rotation1;
+	float _rotation2;
+
+	float _angVelocity1;
+	float _angVelocity2;
+
+	float _growthRate1;
+	float _growthRate2;
+	bool _exponentialGrowth;
+
+	float _velocity1;
+	float _velocity2;
+	bool _velocityZBased;
+
+	float _scale1;
+	float _scale2;
+	bool _scaleZBased;
+
+	int32 _maxParticles;
+
+	int32 _lifeTime1;
+	int32 _lifeTime2;
+	bool _lifeTimeZBased;
+
+	int32 _genInterval;
+	int32 _genAmount;
+
+	bool _running;
+	int32 _overheadTime;
+
+	int32 _maxBatches;
+	int32 _batchesGenerated;
+
+	Common::Rect32 _border;
+	int32 _borderThicknessLeft;
+	int32 _borderThicknessRight;
+	int32 _borderThicknessTop;
+	int32 _borderThicknessBottom;
+
+	int32 _fadeInTime;
+	int32 _fadeOutTime;
+
+	int32 _alpha1;
+	int32 _alpha2;
+	bool _alphaTimeBased;
+
+	bool _useRegion;
+
+	char *_emitEvent;
+	BaseScriptHolder *_owner;
+
+	bool start();
+
+	bool update() override;
+	bool display() override { return display(nullptr); } // To avoid shadowing the inherited display-function.
+	bool display(BaseRegion *region);
+
+	bool sortParticlesByZ();
+	bool addSprite(const char *filename);
+	bool removeSprite(const char *filename);
+	bool setBorder(int x, int y, int width, int height);
+	bool setBorderThickness(int thicknessLeft, int thicknessRight, int thicknessTop, int thicknessBottom);
+
+	bool addForce(const char *name, PartForce::TForceType type, int posX, int posY, float angle, float strength);
+	bool removeForce(const char *name);
+
+	BaseArray<PartForce *> _forces;
+
+	// scripting interface
+	ScValue *scGetProperty(const char *name) override;
+	bool scSetProperty(const char *name, ScValue *value) override;
+	bool scCallMethod(ScScript *script, ScStack *stack, ScStack *thisStack, const char *name) override;
+	const char *scToString() override;
+
+private:
+	PartForce *addForceByName(const char *name);
+	static int32 compareZ(const void *obj1, const void *obj2);
+	bool initParticle(PartParticle *particle, uint32 currentTime, uint32 timerDelta);
+	bool updateInternal(uint32 currentTime, uint32 timerDelta);
+	uint32 _lastGenTime;
+	BaseArray<PartParticle *> _particles;
+	BaseArray<char *> _sprites;
+};
+
+} // End of namespace Wintermute
+
+#endif