HT113FA Holtek Semiconductor Inc, HT113FA Datasheet - Page 3

• Manufacturer Part Number: HT113FA
• Description: Submarine War LCD Game
• Manufacturer: Holtek Semiconductor Inc

Three chances are offered to the player in
each round. When the player’s submarine is
hit by the enemy three times, GAME OVER is
shown on the LCD and the game goes into the
DEMO mode. At this time, if the START/PAUSE
key is not pressed within 2 minutes, power is
automatically turned off. The record of being
hit is cleared to zero whenever the hitting
number is less than three and a new round
begins.
The player’s submarine can only fire one shot
at a time. Only when the player’s torpedo hits
its target or the target disappears can another
torpedo or missile be fired. In addition, vari-
ous sounds accompany with the firing. A pic-
ture of an explosion and a sound are generated
whenever the enemy’s or the player’s submarine
gets hit. When the player’s missile or torpedo
hits the enemy’s, a "TU" sound is derived. In
addition, a jubilant music is played each time a
round is completed. When the player’s subma-
rine gets hit three times and the game is over, a
sad music is played. However, no sounds are
generated if the MUTE key is pressed. To re-in-
itiate the sounds, press the MUTE key again.
Each time the player hits the enemy and
scores are added, the highest score recorded is
compared with the present score. The highest
score is replaced when the current score is
greater than the recorded score. Otherwise,
the recorded score is maintained. The highest
score and game level achieved are reserved as
long as the RESET key is not pressed or the
batteries are not removed.
The moving range of the player’s submarine is
limited to the upper and lower waterways.
The player can use the up, down, left and
right shift keys to move the submarine.
When the player’s submarine gets hit, a sub-
marine picture is shown at the upper right
side of the LCD to specify the submarine has
been hit once. Another picture of submarine is
added when the player’s submarine is being
hit again. However, the third hit of the player’s
submarine ends the game and displays GAME
OVER at the upper right side of the LCD.
The enemy’s bombers can appear from either
3
the left or the right side. Each direction is
further divided into the upper and lower
routes. The Following is the code for the indi-
vidual routes:
Given this, the maximum number of bombers
appearing on the LCD is four. The warships
emerge at the right side and then move to the
left side. As for the enemy’s submarines, they
appear in the upper waterway or sometimes
in the lower waterway. The submarines then
move upward and downward. However, the
submarines will automatically disappear af-
ter moving to and fro without being attacked.
The enemy’s bombs have two directions of
flight, namely vertically down and slanting
downward:
The first route is: A1
The second route is: A1
D5
The third route is: F5
B5
The fourth route is: F5
B5
The routes for vertical flights are:
The first route: B3
The second route: C3
C16
The third route: E3
E16
The fourth route: D3
D16
The fifth route: F3
The routes of the slanting flights are:
The first route: A2
The second route: C9
The third route: B3
D16
The fourth route: E9
The fifth route: C3
The sixth route: E3
The seventh route: F6
The eighth route: D9
The ninth route: D3
The tenth route: E6
F2
A3
A3
F2
B6
B6
F6
E6
E6
D6
C9
B2
E6
C6
D12
E12
D6
E12
C6
D9
D2
D8
B2
C9
F9
D9
B9
C9
F9
C2
B9
E9
E9
D9
C9
HT113FA
D16
E16
E16
E12
E5
E5
C8
25th Nov ’98
E12
F12
B13
F9
B9
F12
E2
B13
E12
D12
D12
C12
C5
C5
E8
E16
E16
F12
B13
D5