JGE/include/JGameObject.h

@@ -0,0 +1,259 @@
+//-------------------------------------------------------------------------------------
+//
+// JGE++ is a hardware accelerated 2D game SDK for PSP/Windows.
+//
+// Licensed under the BSD license, see LICENSE in JGE root for details.
+// 
+// Copyright (c) 2007 James Hui (a.k.a. Dr.Watson) <jhkhui@gmail.com>
+// 
+//-------------------------------------------------------------------------------------
+
+#ifndef _JGAME_OBJECT_H_
+#define _JGAME_OBJECT_H_
+
+#include "JTypes.h"
+#include "JRenderer.h"
+#include "JSprite.h"
+
+
+#define FLASH_TIME			0.10f
+#define FLASHING_COUNT		6
+
+#define RENDER_FLAG_ANGLE		0x0001
+#define RENDER_FLAG_SIZE		0x0002
+#define RENDER_FLAG_ROTATION	0x0004
+
+
+//////////////////////////////////////////////////////////////////////////
+/// A super Sprite class for in-game entities. Extra functions are added
+/// in addition to a normal Sprite for easier control of in-game
+/// activities.
+/// 
+//////////////////////////////////////////////////////////////////////////
+class JGameObject: public JSprite
+{
+
+
+public:
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Constructor.
+	/// 
+	/// @param tex - Texture for first frame. NULL for no starting frame.
+	/// @param x - X position of texture for the frame.
+	/// @param y - Y position of texture for the frame.
+	/// @param width - Width of the frame.
+	/// @param height - Height of the frame.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	JGameObject(JTexture *tex, float x, float y, float width, float height);
+
+	virtual ~JGameObject();
+	
+	//////////////////////////////////////////////////////////////////////////
+	/// Update function.
+	/// 
+	/// @param dt - Delta time since last update (in second).
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	virtual void Update(float dt);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Render current frame.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	virtual void Render();
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Function to handle collision.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	virtual void OnCollide();
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Set bounding box for collision detection. All the following collision
+	/// detections will be done using bounding box.
+	/// 
+	/// @param x - X position of the bounding box (relative to this sprite).
+	/// @param y - Y position of the bounding box (relative to this sprite).
+	/// @param width - Width of the bounding box.
+	/// @param height - Height of the bounding box.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	void SetBBox(float x, float y, float width, float height);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Get bounding box relative to screen position.
+	/// 
+	/// @param x - X of screen position.
+	/// @param y - Y of screen position.
+	/// 
+	/// @return xNow - X position of the bounding box (relative to screen).
+	/// @return yNow - Y position of the bounding box (relative to screen).
+	/// @return width - Width of the bounding box.
+	/// @return height - Height of the bounding box.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	void GetBBox(float x, float y, float* xNow, float* yNow, float* width, float *height);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Set up a circle for collision detection. All the following collision
+	/// detections will be done using circle to circle collision detection.
+	/// 
+	/// @param cx - X of the circle center.
+	/// @param cy - Y of the circle center.
+	/// @param radius - Radius of the circle.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	void SetCollisionCircle(float cx, float cy, float radius);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Check for collision. Either bounding box or circle to circle 
+	/// collision detection will be used depending on which one is setup last.
+	/// 
+	/// @param target - Target to check for collision.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	bool Collide(JGameObject *target);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Set object that has collided with this object.
+	/// 
+	/// @param target - Object that has collided with this object.
+	//////////////////////////////////////////////////////////////////////////
+	void SetCollisionTarget(JGameObject *target);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Get object that has collided with this object.
+	/// 
+	/// @return Object that has collided with this object.
+	//////////////////////////////////////////////////////////////////////////
+	JGameObject *GetCollisionTarget();
+	
+	//////////////////////////////////////////////////////////////////////////
+	/// Set damage point of this object.
+	/// 
+	/// @param pt - Damage point.
+	//////////////////////////////////////////////////////////////////////////
+	void SetHitPoint(int pt);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Get damage point of this object.
+	/// 
+	/// @return Damage point.
+	//////////////////////////////////////////////////////////////////////////
+	int GetHitPoint();
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Set blood of this object.
+	/// 
+	/// @param pt - Blood value.
+	//////////////////////////////////////////////////////////////////////////
+	void SetBlood(int pt);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Get blood of this object.
+	/// 
+	/// @return Blood value.
+	//////////////////////////////////////////////////////////////////////////
+	int GetBlood();
+	
+	//////////////////////////////////////////////////////////////////////////
+	/// Enable alpha animation during update.
+	/// 
+	/// @param flag - Enable flag.
+	/// @param delta - Rate of changing the alpha value.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	void EnableAlpha(bool flag, float delta=0.0f);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Enable scaling during update.
+	/// 
+	/// @param flag - Enable flag.
+	/// @param delta - Rate of changing the scaling value.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	void EnableScaling(bool flag, float delta=0.0f);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Enable rotation during update.
+	/// 
+	/// @param flag - Enable flag.
+	/// @param delta - Rate of rotation.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	void EnableRotation(bool flag, float delta=0.0f);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Set rendering flags.
+	/// 
+	/// @param flags - Rendering flags encoded in bits.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	void SetRenderFlags(int flags);
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Start flashing during render.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	void StartFlashing();
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Start flashing during render.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	void StopFlashing();
+
+	//////////////////////////////////////////////////////////////////////////
+	/// Check if object is flashing.
+	/// 
+	/// @return Flashing status.
+	/// 
+	//////////////////////////////////////////////////////////////////////////
+	bool IsFlashing();
+
+	
+
+private:
+
+	u32 mRenderFlags;
+	
+
+	bool mUseBoundingBox;
+
+	float mBBoxX;
+	float mBBoxY;
+	float mBBoxWidth;
+	float mBBoxHeight;
+
+	float mCenterX;
+	float mCenterY;
+	float mRadius;
+
+	bool mDoAlpha;
+	float mAlphaDelta;
+	bool mDoScaling;
+	float mScaleDelta;
+	bool mDoRotation;
+	float mRotationDelta;
+
+	bool mFlashing;
+	float mFlashTimer;
+	int mFlashCounter;
+	
+
+protected:
+	JGameObject *mCollisionTarget;
+	bool mCollided;
+
+	int mHitPoint;
+	int mBlood;
+	int mOriginalBlood;
+
+
+};
+
+
+#endif
+