/* sub_5D676 */
internal static void localSteppingPathInit(Point target, Point caster, SteppingPath path)
{
path.attacker = caster;
path.target = target;
path.CalculateDeltas();
}
/* sub_5D702 */
static int find_players_on_path(SteppingPath path, List<int> player_list)
{
int dir = 0;
while (path.Step())
{
int playerIndex = ovr033.PlayerIndexAtMapXY(path.current.y, path.current.x);
if (playerIndex > 0)
{
if (player_list.Contains(playerIndex) == false)
{
player_list.Add(playerIndex);
}
}
dir = path.direction;
}
return dir;
}
// sub_5D7CF
static void BuildAreaDamageTargets(int max_range, int playerSize, Point targetPos, Point casterPos)
{
List<int> players_on_path = new List<int>();
bool finished;
SteppingPath path = new SteppingPath();
localSteppingPathInit(targetPos, casterPos, path);
byte[] directions = new byte[0x32];
int index = 0;
while (!path.Step())
{
directions[index] = path.direction;
index++;
}
int count = index - 1;
index = 0;
max_range *= 2;
int tmp_range = path.steps;
finished = false;
var tmpPos = new Point(targetPos);
while (tmp_range < max_range && finished == false)
{
if (tmpPos.x < 0x31 && tmpPos.x > 0 && tmpPos.y < 0x18 && tmpPos.y > 0)
{
switch (directions[index])
{
case 0:
case 2:
case 4:
case 6:
tmp_range += 2;
break;
case 1:
case 3:
case 5:
case 7:
tmp_range += 3;
break;
}
tmpPos += gbl.MapDirectionDelta[directions[index]];
if (index == count)
{
index = 0;
}
else
{
index++;
}
}
else
{
finished = true;
}
}
targetPos.MapBoundaryTrunc();
ovr032.canReachTarget(ref targetPos, casterPos);
localSteppingPathInit(targetPos, casterPos, path);
int var_76 = find_players_on_path(path, players_on_path);
if (playerSize > 1)
{
Point map_b = targetPos + unk_16D32[var_76];
map_b.MapBoundaryTrunc();
localSteppingPathInit(map_b, casterPos, path);
find_players_on_path(path, players_on_path);
if (playerSize > 2)
{
Point map_a = targetPos + unk_16D22[var_76];
map_a.MapBoundaryTrunc();
localSteppingPathInit(map_a, casterPos, path);
find_players_on_path(path, players_on_path);
}
}
gbl.spellTargets.Clear();
foreach (var idx in players_on_path)
{
var player = gbl.player_array[idx];
if (player != gbl.SelectedPlayer)
{
gbl.spellTargets.Add(player);
}
}
}
internal static void sub_5FA44(byte arg_0, SaveVerseType bonusType, int damage, byte arg_6)
{
int var_3A = 0; /* Simeon */
bool var_36 = false;
ovr025.load_missile_icons(0x13);
int var_39;
int groundTile;
ovr033.AtMapXY(out groundTile, out var_39, gbl.targetPos);
int var_3D = 0;
int var_35 = 1;
var playerPos = ovr033.PlayerMapPos(gbl.SelectedPlayer);
byte var_38 = arg_0;
if (playerPos != gbl.targetPos)
{
int var_3C = arg_6 * 2;
gbl.byte_1D2C7 = true;
while (var_3C > 0)
{
var path_a = new SteppingPath();
path_a.attacker = gbl.targetPos;
path_a.target = gbl.targetPos + ((gbl.targetPos - playerPos) * var_35 * var_3C);
path_a.CalculateDeltas();
do
{
var tmppos = path_a.current;
if (path_a.attacker != path_a.target)
{
bool stepping;
do
{
stepping = path_a.Step();
ovr033.AtMapXY(out groundTile, out var_3A, path_a.current);
if (gbl.BackGroundTiles[groundTile].move_cost == 1)
{
var_36 = false;
}
} while (stepping == true &&
(var_3A <= 0 || var_3A == var_39) &&
groundTile != 0 &&
gbl.BackGroundTiles[groundTile].move_cost <= 1 &&
path_a.steps < var_3C);
}
if (groundTile == 0)
{
var_3C = 0;
}
ovr025.draw_missile_attack(0x32, 4, path_a.current, tmppos);
var_36 = DoElecDamage(var_36, var_39, bonusType, damage, path_a.current);
var_39 = var_3A;
if (var_36 == true)
{
gbl.targetPos = path_a.current;
var path_b = new SteppingPath();
path_b.attacker = gbl.targetPos;
path_b.target = playerPos;
path_b.CalculateDeltas();
while (path_b.Step() == true)
{
/* empty */
}
if (var_38 != 0 && path_b.steps <= 8)
{
path_a.steps += 8;
}
var_35 = -var_35;
var_38 = 0;
var_39 = 0;
}
var_3D = (byte)(path_a.steps - var_3D);
if (var_3D < var_3C)
{
var_3C -= var_3D;
}
else
{
var_3C = 0;
}
var_3D = path_a.steps;
} while (var_36 == false && var_3C != 0);
}
gbl.byte_1D2C7 = false;
}
}
/* sub_733F1 */
static MapReach canReachTargetCalc(Struct_1D1BC groundTilesMap, Point outPos, Point attacker)
{
SteppingPath var_31 = new SteppingPath();
SteppingPath var_19 = new SteppingPath();
int max_range = (256 * 2) + 1;
var_19.attacker = attacker;
var_19.target = outPos;
var_19.CalculateDeltas();
var_31.attacker.x = 0;
var_31.attacker.y = gbl.BackGroundTiles[groundTilesMap[attacker]].field_1;
if (var_19.diff_x > var_19.diff_y)
{
var_31.target.x = var_19.diff_x;
}
else
{
var_31.target.x = var_19.diff_y;
}
var_31.target.y = gbl.BackGroundTiles[groundTilesMap[attacker]].field_1;
var_31.CalculateDeltas();
bool finished = false;
do
{
int gt = groundTilesMap[var_19.current];
Struct_189B4 s189 = gbl.BackGroundTiles[gt];
if (groundTilesMap.ignoreWalls == false && s189.field_2 > var_31.current.y)
{
return new MapReach(false, var_19.steps, var_19.current);
}
// range is for cache hard coded to 256, thus max_range = 513, so skip this.
if (var_19.steps > max_range)
{
return new MapReach(false, var_19.steps, var_19.current);
}
var_31.Step();
finished = !var_19.Step();
} while (finished == false);
return new MapReach(true, var_19.steps, outPos);
}
/* sub_67AA4 */
internal static void draw_missile_attack(int delay, int frameCount, Point target, Point attacker)
{
Point center;
bool var_B4;
bool var_B3;
SteppingPath path = new SteppingPath();
byte[] pathDir = new byte[0x94];
seg051.FillChar(8, 0x94, pathDir);
int var_AF = 0;
int frame = 0;
path.attacker = attacker * 3;
path.target = target * 3;
path.CalculateDeltas();
do
{
var_B4 = !path.Step();
pathDir[var_AF] = path.direction;
var_AF++;
} while (var_B4 == false);
int var_B0 = var_AF - 2;
if (var_B0 < 2 || var_AF < 2)
{
return;
}
var diff = target - attacker;
if (ovr033.CoordOnScreen(attacker - gbl.mapToBackGroundTile.mapScreenTopLeft) == false ||
ovr033.CoordOnScreen(target - gbl.mapToBackGroundTile.mapScreenTopLeft) == false)
{
if (System.Math.Abs(diff.x) <= 6 &&
System.Math.Abs(diff.y) <= 6)
{
var_B3 = true;
center = (diff / 2) + attacker;
}
else
{
var_B3 = false;
center = gbl.mapToBackGroundTile.mapScreenTopLeft + Point.ScreenCenter;
}
}
else
{
var_B3 = true;
center = gbl.mapToBackGroundTile.mapScreenTopLeft + Point.ScreenCenter;
}
ovr033.redrawCombatArea(8, 0xFF, center);
var_AF = 0;
Point delta = new Point(0, 0);
do
{
Point cur = ((attacker - gbl.mapToBackGroundTile.mapScreenTopLeft) * 3) + delta;
var_B4 = false;
do
{
Point var_C6 = gbl.MapDirectionDelta[pathDir[var_AF]];
cur += var_C6;
if (delay > 0 ||
(cur.x % 3) == 0 ||
(cur.y % 3) == 0)
{
Display.SaveVidRam();
seg040.OverlayBounded(gbl.missile_dax, 5, frame, cur.y, cur.x);
seg040.DrawOverlay();
seg049.SysDelay(delay);
Display.RestoreVidRam();
frame++;
if (frame >= frameCount)
{
frame = 0;
}
}
var_AF++;
if (cur.x < 0 || cur.x > 0x12 || cur.y < 0 || cur.y > 0x12)
{
var_B4 = true;
}
if (var_B4 == false &&
var_AF < var_B0)
{
delta += var_C6;
if (Math.Abs(delta.x) == 3)
{
attacker.x += Math.Sign(delta.x);
center.x += Math.Sign(delta.x);
delta.x = 0;
}
if (Math.Abs(delta.y) == 3)
{
attacker.y += Math.Sign(delta.y);
center.y += Math.Sign(delta.y);
delta.y = 0;
}
}
} while (var_AF < var_B0 && var_B4 == false);
if (var_AF < var_B0)
{
int var_CE = 0;
int var_D0 = 0;
delta = new Point(0, 0);
attacker = target;
if ((target.x + Point.ScreenHalfX) > Point.MapMaxX)
{
var_CE = target.x - Point.MapMaxX;
}
else if (target.x < Point.ScreenHalfX)
{
var_CE = Point.ScreenHalfX - target.x;
}
if ((target.y + Point.ScreenHalfY) > Point.MapMaxY)
{
var_D0 = target.y - Point.MapMaxY;
}
else if (target.y < Point.ScreenHalfY)
{
var_D0 = Point.ScreenHalfY - target.y;
}
center.x = target.x + var_CE;
center.y = target.y + var_D0;
ovr033.redrawCombatArea(8, 0xff, center);
cur = (target - gbl.mapToBackGroundTile.mapScreenTopLeft) * 3;
var_AF = var_B0;
var_B4 = false;
do
{
Point var_C6 = new Point(0, 0) - gbl.MapDirectionDelta[pathDir[var_AF]];
cur += var_C6;
if (cur.x > 18)
{
attacker.x = gbl.mapToBackGroundTile.mapScreenTopLeft.x + Point.ScreenMaxX;
}
else if (cur.x < 0)
{
attacker.x = gbl.mapToBackGroundTile.mapScreenTopLeft.x;
}
if (cur.y > 18)
{
attacker.y = gbl.mapToBackGroundTile.mapScreenTopLeft.y + Point.ScreenMaxY;
}
else if (cur.y < 0)
{
attacker.y = gbl.mapToBackGroundTile.mapScreenTopLeft.y;
}
if (cur.x < 0 || cur.x > 18 || cur.y < 0 || cur.y > 18)
{
var_B4 = true;
}
if (var_B4 == false)
{
delta += var_C6;
if (System.Math.Abs(delta.x) == Point.ScreenHalfX)
{
attacker.x += Math.Sign(delta.x);
center.x += Math.Sign(delta.x);
delta.x = 0;
}
if (System.Math.Abs(delta.y) == Point.ScreenHalfY)
{
attacker.y += Math.Sign(delta.y);
center.y += Math.Sign(delta.y);
delta.y = 0;
}
var_AF -= 1;
}
} while (var_B4 == false);
}
else
{
var_B3 = true;
if (ovr033.CoordOnScreen(target - gbl.mapToBackGroundTile.mapScreenTopLeft) == false)
{
ovr033.redrawCombatArea(8, 3, target);
}
cur = (target - gbl.mapToBackGroundTile.mapScreenTopLeft) * 3;
Display.SaveVidRam();
seg040.OverlayBounded(gbl.missile_dax, 5, frame, cur.y, cur.x);
if (delay > 0)
{
seg040.DrawOverlay();
seg049.SysDelay(delay);
Display.RestoreVidRam();
}
}
} while (var_B3 == false);
seg040.DrawOverlay();
}