Initial Source Code commit
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
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REDALERT/VORTEX.H
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REDALERT/VORTEX.H
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//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/***********************************************************************************************
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*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
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***********************************************************************************************
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* *
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* Project Name : Command & Conquer - Red Alert *
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* *
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* File Name : VORTEX.H *
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* *
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* Programmer : Steve Tall *
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* *
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* Start Date : 8/12/96 *
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* *
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* Last Update : August 29th, 1996 [ST] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Overview: *
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* Definition of ChronalVortexClass. The Chronal vortex sometimes appears when the *
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* chronosphere is used. *
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* *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#ifndef VORTEX_H
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#define VORTEX_H
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#define MAX_REMAP_SHADES 16 //Number of lookup tables required for vortex shading.
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#define VORTEX_FRAMES 16 //Number of frames in one complete rotation of the vortex.
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class ChronalVortexClass {
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public:
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/*
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** Constructor and destructor.
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*/
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ChronalVortexClass(void);
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~ChronalVortexClass(void);
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void Detach(TARGET target);
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/*
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** Makes the vortex appear at the specified coordinate.
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*/
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void Appear (COORDINATE coordinate);
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/*
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** Makes the vortex go away.
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*/
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void Disappear (void);
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/*
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** Call this every frame.
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*/
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void AI (void);
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/*
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** Render the vortex
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*/
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void Render (void);
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/*
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** Flags cells under the vortex to be redrawn
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*/
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void Set_Redraw (void);
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/*
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** Call whenever the theater changes to recalculate the shading lookup tables
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*/
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void Setup_Remap_Tables (TheaterType theater);
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/*
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** Functions to load and save the vortex.
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*/
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void Load(Straw &file);
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void Save(Pipe &file);
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/*
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** Returns true of vortex is currently active.
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*/
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bool Is_Active(void) {return (Active);};
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/*
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** Makes the vortex attack the specified target. Target must be in range of the vortex.
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*/
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void Set_Target (ObjectClass *target);
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/*
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** Disables the vortex.
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*/
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void Stop(void);
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/*
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** Members to allow read access to private data
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*/
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COORDINATE Get_Position (void) {return (Position);};
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int Get_Range (void) {return (Range);};
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int Get_Speed (void) {return (Speed);};
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int Get_Damage (void) {return (Damage);};
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/*
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** Members to allow write access to private data.
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*/
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void Set_Range (int range) {Range = range;};
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void Set_Speed (int speed) {Speed = speed;};
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void Set_Damage (int damage) {Damage = damage;};
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/*
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** Possible states the vortex can be in.
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*/
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typedef enum AnimStateType : unsigned char {
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STATE_GROW, //Vortex has just appeared and is growing larger
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STATE_ROTATE, //Vortex is rotating
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STATE_SHRINK //Vortex is shrinking and about to disappear
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}AnimStateType;
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private:
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/*
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** Members for setting up the lookup tables.
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*/
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void Build_Fading_Table (PaletteClass const & palette, void * dest, int color, int frac);
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void Coordinate_Remap ( GraphicViewPortClass *inbuffer, int x, int y, int width, int height, unsigned char *remap_table);
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/*
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** Misc internal functions
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*/
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void Attack(void);
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void Zap_Target(void);
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void Movement(void);
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void Hide(void);
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void Show(void);
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/*
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** Position of the top left of the vortex
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*/
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COORDINATE Position;
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/*
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** Direction of rotation
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*/
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int AnimateDir;
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/*
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** Current frame of animation
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*/
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int AnimateFrame;
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/*
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** Animation flag. When 0 vortex will animate 1 frame.
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*/
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int Animate;
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/*
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** State of vortex. See ENUM for info.
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*/
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AnimStateType State;
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/*
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** Color lookup tables for shading on vortex.
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*/
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unsigned char VortexRemapTables [MAX_REMAP_SHADES][256];
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/*
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** Color lookup table to make the blue lightning orange.
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*/
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unsigned char LightningRemap[256];
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/*
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** Is vortex currently active?
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*/
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int Active : 1;
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/*
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** Is the vortex winding down?
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*/
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int StartShutdown : 1;
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/*
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** Is the vortex about to hide from view?
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*/
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int StartHiding : 1;
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/*
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** Is the vortex active but hidden?
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*/
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int Hidden : 1;
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/*
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** Theater that lookup table is good for.
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*/
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TheaterType Theater;
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/*
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** Last frame that vortex attacked on
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*/
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int LastAttackFrame;
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/*
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** How many times lightning has zapped on this attack
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*/
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int ZapFrame;
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/*
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** Ptr to object that the vortex is zapping
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*/
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TARGET TargetObject;
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// ObjectClass *TargetObject;
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/*
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** Distance to the target object
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*/
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int TargetDistance;
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/*
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** Game frame that vortex hid on.
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*/
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int HiddenFrame;
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/*
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** Direction vortex is going in.
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*/
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int XDir;
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int YDir;
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/*
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** Direction vortex should be going in
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*/
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int DesiredXDir;
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int DesiredYDir;
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/*
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** Range in cells of the vortex lightning
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*/
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int Range;
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/*
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** Max speed in leptons per frame of the vortex.
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*/
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int Speed;
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/*
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** Damge of vortex lightning zap.
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*/
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int Damage;
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/*
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** Offscreen buffer to render vortex into. This is needed so we can handle clipping.
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*/
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GraphicBufferClass *RenderBuffer;
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};
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#endif
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