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c0a3816e17
In this first step, I have moved all opcode functions into functions.cpp, instead of having them scattered all over the place. To get things to compile again, I had to rewrite the overly complicated sound effects handling. It's much simpler now. The next step will be to move any non-trivial code out of the opcode functions and into the appropriate object. This, I hope, will make it easier to create well-separated objects, instead of the current mess. I also want to tear down the artificial boundary between the main directory and the "driver" directory. We already have a cross-platform layer; there's no need to have yet another one. (Actually, the rewriting of the sound effects code took one first step in this direction.) At the final stage, I'd like to get rid of the "drivers" directory completely, but I'll probably need some help with that if I want to preserve the CVS history of the code. Things will probably be a bit bumpy along the way, but I seem to have reached a point of relative stability again, which is why I'm commiting this now. svn-id: r16668
73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
/* Copyright (C) 1994-1998 Revolution Software Ltd.
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* Copyright (C) 2003-2005 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*/
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// WALKER.CPP by James (14nov96)
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// Script functions for moving megas about the place & also for keeping tabs
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// on them
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#include "common/stdafx.h"
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#include "sword2/sword2.h"
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#include "sword2/defs.h"
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#include "sword2/interpreter.h"
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#include "sword2/logic.h"
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#include "sword2/memory.h"
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#include "sword2/resman.h"
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#include "sword2/router.h"
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#include "sword2/driver/d_draw.h"
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namespace Sword2 {
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/**
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* Work out direction from start to dest.
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*/
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// Used in whatTarget(); not valid for all megas
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#define diagonalx 36
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#define diagonaly 8
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int Logic::whatTarget(int startX, int startY, int destX, int destY) {
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int deltaX = destX - startX;
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int deltaY = destY - startY;
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// 7 0 1
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// 6 2
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// 5 4 3
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// Flat route
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if (ABS(deltaY) * diagonalx < ABS(deltaX) * diagonaly / 2)
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return (deltaX > 0) ? 2 : 6;
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// Vertical route
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if (ABS(deltaY) * diagonalx / 2 > ABS(deltaX) * diagonaly)
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return (deltaY > 0) ? 4 : 0;
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// Diagonal route
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if (deltaX > 0)
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return (deltaY > 0) ? 3 : 1;
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return (deltaY > 0) ? 5 : 7;
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}
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} // End of namespace Sword2
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