// Get attack animation frames
public static List <Bitmap> UnitAttack(CombatEventArgs e)
{
var animationFrames = new List <Bitmap>();
var map = e.Defender.Location.Map;
// Which squares are to be drawn
var coordsOffsetsToBeDrawn = new List <int[]>
{
new[] { -2, -4 },
new[] { 0, -4 },
new[] { 2, -4 },
new[] { -3, -3 },
new[] { -1, -3 },
new[] { 1, -3 },
new[] { 3, -3 },
new[] { -2, -2 },
new[] { 0, -2 },
new[] { 2, -2 },
new[] { -3, -1 },
new[] { -1, -1 },
new[] { 1, -1 },
new[] { 3, -1 },
new[] { -2, 0 },
new[] { 0, 0 },
new[] { 2, 0 },
new[] { -3, 1 },
new[] { -1, 1 },
new[] { 1, 1 },
new[] { 3, 1 },
new[] { -2, 2 },
new[] { 0, 2 },
new[] { 2, 2 },
new[] { -3, 3 },
new[] { -1, 3 },
new[] { 1, 3 },
new[] { 3, 3 },
new[] { -2, 4 },
new[] { 0, 4 },
new[] { 2, 4 }
};
var defenderX = e.Defender.Location.X;
var defenderY = e.Defender.Location.Y;
var attackerX = e.Attacker.Location.X;
var attackerY = e.Attacker.Location.Y;
// First draw main bitmap with everything except the moving unit
int[] coordsOffsetsPx;
var mainBitmap = new Bitmap(6 * map.Xpx, 7 * map.Ypx, PixelFormat.Format32bppRgba);
using (var g = new Graphics(mainBitmap))
{
g.FillRectangle(Brushes.Black, new Rectangle(0, 0, 6 * map.Xpx, 7 * map.Ypx)); // Fill bitmap with black (necessary for correct drawing if image is on upper map edge)
foreach (int[] coordsOffsets in coordsOffsetsToBeDrawn)
{
// Change coords of central offset
int x = attackerX + coordsOffsets[0];
int y = attackerY + coordsOffsets[1];
coordsOffsetsPx = new[] { (coordsOffsets[0] + 2) * map.Xpx, (coordsOffsets[1] + 3) * map.Ypx };
if (x < 0 || y < 0 || x >= map.XDimMax || y >= map.YDim)
{
continue; // Make sure you're not drawing tiles outside map bounds
}
// Tiles
var tile = map.TileC2(x, y);
int civId = map.WhichCivsMapShown;
if (map.MapRevealed || tile.Visibility[civId])
{
Draw.Tile(g, x, y, map.Zoom, new Point(coordsOffsetsPx[0], coordsOffsetsPx[1]));
// Implement dithering in all 4 directions if necessary
if (!map.MapRevealed)
{
for (int tileX = 0; tileX < 2; tileX++)
{
for (int tileY = 0; tileY < 2; tileY++)
{
int[] offset = { -1, 1 };
var xNew = x + offset[tileX];
var yNew = y + offset[tileY];
if (xNew >= 0 && xNew < map.XDimMax && yNew >= 0 && yNew < map.YDim) // Don't observe outside map limits
{
if (!map.IsTileVisibleC2(xNew, yNew, civId)) // Surrounding tile is not visible -> dither
{
Draw.Dither(g, tileX, tileY, map.Zoom, new Point(coordsOffsetsPx[0] + map.Xpx * tileX, coordsOffsetsPx[1] + map.Ypx * tileY));
}
}
}
}
}
}
// Units
// If tile is with attacking & defending unit, draw these two first
// TODO: this won't draw correctly if unit is in city
if (x == attackerX && y == attackerY)
{
Draw.Unit(g, e.Attacker, e.Attacker.IsInStack, map.Zoom, new Point(coordsOffsetsPx[0], coordsOffsetsPx[1] - map.Ypx));
}
else if (x == defenderX && y == defenderY)
{
Draw.Unit(g, e.Defender, e.Defender.IsInStack, map.Zoom, new Point(coordsOffsetsPx[0], coordsOffsetsPx[1] - map.Ypx));
}
else if (tile.CityHere == null && tile.UnitsHere.Count > 0) // Other units
{
var unit = tile.GetTopUnit();
Draw.Unit(g, unit, unit.IsInStack, map.Zoom,
new Point(coordsOffsetsPx[0], coordsOffsetsPx[1] - map.Ypx));
}
// Cities
if (tile.CityHere != null)
{
Draw.City(g, tile.CityHere, true, map.Zoom, new Point(coordsOffsetsPx[0], coordsOffsetsPx[1] - map.Ypx));
}
}
// City names
// Add additional coords for drawing city names
coordsOffsetsToBeDrawn.Add(new[] { -3, -5 });
coordsOffsetsToBeDrawn.Add(new[] { -1, -5 });
coordsOffsetsToBeDrawn.Add(new[] { 1, -5 });
coordsOffsetsToBeDrawn.Add(new[] { 3, -5 });
coordsOffsetsToBeDrawn.Add(new[] { -4, -2 });
coordsOffsetsToBeDrawn.Add(new[] { 4, -2 });
coordsOffsetsToBeDrawn.Add(new[] { -4, 0 });
coordsOffsetsToBeDrawn.Add(new[] { 4, 0 });
coordsOffsetsToBeDrawn.Add(new[] { -4, 2 });
coordsOffsetsToBeDrawn.Add(new[] { 4, 2 });
foreach (int[] coordsOffsets in coordsOffsetsToBeDrawn)
{
// Change coords of central offset
int x = attackerX + coordsOffsets[0];
int y = attackerY + coordsOffsets[1];
if (x < 0 || y < 0 || x >= map.XDimMax || y >= map.YDim)
{
continue; // Make sure you're not drawing tiles outside map bounds
}
var tile = map.TileC2(x, y);
if (tile.CityHere != null)
{
Draw.CityName(g, tile.CityHere, map.Zoom, new[] { coordsOffsets[0] + 2, coordsOffsets[1] + 3 });
}
}
}
// Now draw the battle animation on top of attacking & defending unit
// Number of battle rounds / 5 determines number of explosions (must be at least one). Each explosion has 8 frames.
Point point;
for (int explosion = 0; explosion < e.CombatRoundsAttackerWins.Count / 5; explosion++)
{
for (int frame = 0; frame < 8; frame++)
{
// Make a clone of the main bitmap in order to draw frames with unit on it
var bitmapWithExplosions = new Bitmap(mainBitmap);
using (var g = new Graphics(bitmapWithExplosions))
{
// Draw changing HP of both units
foreach (var coordsOffsets in coordsOffsetsToBeDrawn)
{
var x = attackerX + coordsOffsets[0];
var y = attackerY + coordsOffsets[1];
if (x == attackerX && y == attackerY)
{
Draw.UnitShield(g, e.Attacker.Type, e.Attacker.Owner.Id, e.Attacker.Order, e.Attacker.IsInStack,
e.Attacker.Hitpoints[explosion * 5], e.Attacker.HitpointsBase, map.Zoom,
new Point(2 * map.Xpx, 2 * map.Ypx));
Draw.UnitSprite(g, e.Attacker.Type, false, false, map.Zoom,
new Point(2 * map.Xpx, 2 * map.Ypx));
}
else if (x == defenderX && y == defenderY)
{
Draw.UnitShield(g, e.Defender.Type, e.Defender.Owner.Id, e.Defender.Order,
e.Defender.IsInStack, e.Defender.Hitpoints[explosion * 5], e.Defender.HitpointsBase,
map.Zoom,
new Point((2 + coordsOffsets[0]) * map.Xpx, (2 + coordsOffsets[1]) * map.Ypx));
Draw.UnitSprite(g, e.Defender.Type, e.Defender.Order == OrderType.Sleep,
e.Defender.Order == OrderType.Fortified, map.Zoom,
new Point((2 + coordsOffsets[0]) * map.Xpx, (2 + coordsOffsets[1]) * map.Ypx));
}
}
// Draw explosion on defender
point = e.CombatRoundsAttackerWins[explosion]
? new Point((int)(map.Xpx * (2.5 + defenderX - attackerX)),
map.Ypx * (3 + (defenderY - attackerY)))
: new Point((int)(map.Xpx * 2.5), map.Ypx * 3);
Draw.BattleAnim(g, frame, map.Zoom, point);
}
animationFrames.Add(bitmapWithExplosions);
}
}
return(animationFrames);
}
