Game Development Reference
In-Depth Information
class
TileField : GameObjectGrid
1
{
2
public
TileField(
int
rows,
int
columns,
int
layer = 0,
string
id = "")
3
:
base
(rows, columns, layer, id)
4
{
5
}
6
7
8
public
TileType GetTileType(
int
x,
int
y)
{
9
if
(x < 0 || x >= Columns)
10
return
TileType.Normal;
11
if
(y<0||y>=Rows)
12
return
TileType.Background;
13
Tile current =
this
.Objects[x, y]
as
Tile;
14
return
current.TileType;
15
}
16
}
17
Listing 27.1
The
TileField
class
Player player =
new
Player(startPosition);
this
.Add(player);
Finally, we still need to make an actual tile here that can be stored in the grid,
since each character should represent a tile. In this case, we can simply create a
background tile, which is placed where the player is standing:
return new
Tile();
27.4 Jumping . . .
We have already seen how we can walk to the left or to the right. How can we deal
with jumping and falling? By pressing either the arrow up key or the space bar,
the character should jump. Jumping basically means that the character will have a
negative y
-velocity. This can be easily done inside the
HandleInput
method of the
Player
class:
if
(inputHelper.KeyPressed(Keys.Space) || inputHelper.KeyPressed(Keys.Up))
Jump();
The
Jump
method is given as follows:
