func (t *t_pf_state) setStart(start *TileWrapper, heuristics bool) {
startx, starty := start.tile.GetIndices()
t.startNode = &t.nodemap[startx][starty]
t.addToOpen(t.startNode)
if heuristics {
for x := 0; x < env.MAX_SIZE; x++ {
for y := 0; y < env.MAX_SIZE; y++ {
// Map the manhattan distance
node := &t.nodemap[x][y]
node.h = util.Absi(startx-x) +
util.Absi(starty-y)
}
}
}
}
func manhattanDistance(a, b *t_pathnode) int {
ax, ay := a.tile.tile.GetIndices()
bx, by := b.tile.tile.GetIndices()
return util.Absi(ax-bx) + util.Absi(ay-by)
}