152 lines
3.5 KiB
C#
152 lines
3.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using OpenRa.FileFormats;
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using System.Drawing;
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using BluntDirectX.Direct3D;
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namespace OpenRa.Game
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{
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class Mcv : Actor, ISelectable
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{
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static Range<int> mcvRange = UnitSheetBuilder.GetUnit("mcv");
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int facing = 0;
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int2 fromCell, toCell;
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int moveFraction, moveFractionTotal;
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delegate void TickFunc( World world, double t );
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TickFunc currentOrder = null;
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TickFunc nextOrder = null;
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public Mcv(int2 cell, int palette)
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{
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fromCell = toCell = cell;
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// HACK: display the mcv centered in it's cell;
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renderLocation = (cell * 24).ToFloat2() - new float2(12, 12);
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this.palette = palette;
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}
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static float2[] fvecs = Util.MakeArray<float2>(32,
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delegate(int i) { return -float2.FromAngle(i / 16.0f * (float)Math.PI); });
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int GetFacing(float2 d)
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{
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if (float2.WithinEpsilon(d, float2.Zero, 0.001f))
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return facing;
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int highest = -1;
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float highestDot = -1.0f;
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for (int i = 0; i < fvecs.Length; i++)
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{
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float dot = float2.Dot(fvecs[i], d);
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if (dot > highestDot)
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{
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highestDot = dot;
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highest = i;
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}
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}
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return highest;
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}
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public override Sprite[] CurrentImages
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{
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get { return new Sprite[] { UnitSheetBuilder.sprites[facing + mcvRange.Start] }; }
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}
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const int Speed = 6;
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public override void Tick( World world, double t )
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{
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if( currentOrder == null && nextOrder != null )
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{
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currentOrder = nextOrder;
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nextOrder = null;
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}
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if( currentOrder != null )
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currentOrder( world, t );
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}
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public void AcceptMoveOrder( int2 destination )
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{
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nextOrder = delegate( World world, double t )
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{
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int speed = (int)( t * ( Speed * 100 ) );
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if( nextOrder != null )
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destination = toCell;
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int desiredFacing = GetFacing( ( toCell - fromCell ).ToFloat2() );
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if( facing != desiredFacing )
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Turn(desiredFacing);
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else
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{
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moveFraction += speed;
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if( moveFraction >= moveFractionTotal )
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{
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moveFraction = 0;
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moveFractionTotal = 0;
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fromCell = toCell;
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if( toCell == destination )
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currentOrder = null;
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else
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{
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int2 dir = destination - fromCell;
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toCell = fromCell + dir.Sign();
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moveFractionTotal = ( dir.X != 0 && dir.Y != 0 ) ? 250 : 200;
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}
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}
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}
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float2 location;
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if( moveFraction > 0 )
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location = 24 * float2.Lerp(fromCell.ToFloat2(), toCell.ToFloat2(),
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(float)moveFraction / moveFractionTotal);
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else
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location = 24 * fromCell.ToFloat2();
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renderLocation = location - new float2( 12, 12 ); // HACK: center mcv in it's cell
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renderLocation = renderLocation.Round();
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};
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}
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void Turn(int desiredFacing)
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{
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int df = (desiredFacing - facing + 32) % 32;
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facing = (facing + (df > 16 ? 31 : 1)) % 32;
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}
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public void AcceptDeployOrder()
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{
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nextOrder = delegate( World world, double t )
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{
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int desiredFacing = 12;
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if (facing != desiredFacing)
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Turn(desiredFacing);
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else
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{
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world.AddFrameEndTask(delegate
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{
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world.Remove( this );
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world.Add(new ConstructionYard((fromCell * 24 - new int2(24, 24)).ToFloat2(), palette));
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});
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currentOrder = null;
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}
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};
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}
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public IOrder Order( int2 xy )
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{
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if( ( fromCell == toCell || moveFraction == 0 ) && fromCell == xy )
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return new DeployMcvOrder( this );
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else
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return new MoveOrder( this, xy );
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}
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}
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}
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