Hallo,
ich hatte schon beim Arduino Forum gefragt und leider keine (geistreiche) Antwort bekommen…
Ich habe scheinbar bei meinem Code einen Denkfehler.
Wer schon mal was vom Hamster gehört hat, weiß, was ich hier vorhabe. Ich baue ein Spielfeld in einem Array auf und lasse eine Spielfigur hindurch wandern.
Dazu verwende ich ein Arduino Uno, ein LCD Keypad Shield und ein 2x16 LCD weiß auf blau (http://www.komputer.de/zen/index.php?main_page=produ…).
Ich schätze mal, dass der Fehler irgendwie in der Position des Chars im Array zu tun hat.
Ich drücke rechts -> a tree (ist richtig)
Ich drücke nochmal rechts -> nothing -> game over (Hä?)
Nach links kann ich mich eine ganze Weile bewegen, bevor „a tree“ erscheint. Nach oben ist direkt ein Baum, noch ein Baum, ein freies Feld…
Wer mir aus dem Schlammasel hilft, bekommt ein Gummibärchen 
Hier der Code:
/\*
Little text adventure
By DarkAngel
\*technikzumanfassen.forumieren.com\*
XXXXXXXXXX
X O X
X X X X
X XXX CX X
//create object to control an LCD.
//number of lines in display=2
LCD4Bit\_mod lcd = LCD4Bit\_mod(2);
//Key Reihenfolge: rechts, oben, unten, links, select
int adc\_key\_val[5] ={
30, 150, 360, 535, 760 };
int NUM\_KEYS = 5;
int adc\_key\_in;
int key=-1;
// Variables for the game
int playerposition[2] = { 5, 4};
int x = playerposition[0]; // giving actual player position to variables
int y = playerposition[1]; // needed for next position and status
int playfield[7][9] = {
{0,0,0,0,0,0,0,0,0},
{0,1,2,1,1,1,1,1,0},
{0,1,1,0,1,1,0,1,0},
{0,1,0,0,1,1,0,1,0},
{0,1,1,0,1,1,0,1,0},
{0,5,1,0,1,1,0,3,0},
{0,0,9,0,0,0,0,0,0}
}; // 0=wall, 1=free field, 2=coin, 3=weapon, 5=enemy, 9=exit
int inventory[1];
char messages[10][19] = {
"a tree... ",
"moving ",
"got a coin ",
"got a weapon ",
"an enemy ",
"defended ",
"enemy dies ",
"nothing to defend",
"you die ",
"GAME OVER "};
void setup()
{
// (original Code from example)
pinMode(13, OUTPUT); //we'll use the debug LED to output a heartbeat
lcd.init();
//optionally, now set up our application-specific display settings, overriding whatever the lcd did in lcd.init()
//lcd.commandWrite(0x0F);//cursor on, display on, blink on. (nasty!)
lcd.clear();
lcd.printIn("In the woods"); // my Title :wink:
}
void loop()
{
lcd.cursorTo(2, 0); //line=2, x=0 (original Code from example)
if(x==0 && x==0) // if game over, don't do anything
{
delay(5000);
}
else
{
adc\_key\_in = analogRead(0); // read the value from the sensor (original Code from example)
digitalWrite(13, HIGH);
key = get\_key(adc\_key\_in); // convert into key press (original Code from example)
delay(50); // wait for debounce time (original Code from example)
adc\_key\_in = analogRead(0); // read the value from the sensor (original Code from example)
key = get\_key(adc\_key\_in); // convert into key press (original Code from example)
digitalWrite(13, LOW); // (original Code from example)
if (key \>=0) // if pressed any key
{
delay(50);
int z = get\_point(key); // sending the pressed key to function get\_point
delay(100);
key=-1;
if(z==0) // if standing in front of a tree, tell them
{
lcd.cursorTo(2, 0);
lcd.printIn(messages[z]);
lcd.cursorTo(2, 0);
} // End x==0
if(z==1 || z==2) // if found a coin or free field, move
{
playerposition[0] = x;
playerposition[1] = y;
lcd.cursorTo(2, 0);
lcd.printIn(messages[z]);
lcd.cursorTo(2, 0);
} // End x==1, x==2
if(z==3) // if found a weapon, equip it and move
{
inventory[0] = 3;
playerposition[0] = x;
playerposition[1] = y;
lcd.cursorTo(2, 0);
lcd.printIn(messages[z]);
lcd.cursorTo(2, 0);
} // End x==3
if(z==4) // if found an enemy, search weapon
{
if(inventory[0]==3) // if weapon is found,
{
delay(100);
lcd.cursorTo(2, 0);
lcd.printIn(messages[5]); // destroy enemy
delay(50);
lcd.cursorTo(2, 0);
lcd.printIn(messages[6]); // and win game
lcd.cursorTo(2, 0);
}
else
{
delay(100);
lcd.cursorTo(2, 0);
lcd.printIn(messages[7]); // else you will be destroyed by enemy
delay(100);
lcd.cursorTo(2, 0);
lcd.printIn(messages[8]); // and loose game
lcd.cursorTo(2, 0);
z = 9;
}
if(z==9) // if game is lost or won, show game over
{
playerposition[0] = 0;
playerposition[1] = 0;
lcd.cursorTo(2, 0);
lcd.printIn(messages[9]);
delay(5000);
}
}
}
}
}
// Convert ADC value to key number (original Code from example)
int get\_key(unsigned int input)
{
int k;
for (k = 0; k = NUM\_KEYS)
k = -1; // No valid key pressed
return k;
}
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
\* Get point on playfield \*
\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/
int get\_point(unsigned int key)
{
lcd.cursorTo(2, 0);
int point;
if(key==0) // show direction where you wanted to go
{
x++;
lcd.printIn("right ");
lcd.cursorTo(2, 0);
delay(100);
}
if(key==1)
{
y--;
lcd.printIn("up ");
lcd.cursorTo(2, 0);
delay(100);
}
if(key==2)
{
y++;
lcd.printIn("down ");
lcd.cursorTo(2, 0);
delay(100);
}
if(key==3)
{
x--;
lcd.printIn("left ");
lcd.cursorTo(2, 0);
delay(100);
}
if(key==4) // if select key was pressed, show inventory
{
if(inventory[0]==3)
{
lcd.printIn("weapon ");
lcd.cursorTo(2, 0);
delay(500);
}
else
{
lcd.printIn("nothing ");
lcd.cursorTo(2, 0);
delay(500);
}
}
point = playfield[x][y]; // get point of playfield where you wanted to go
switch(point)
{
case 0:
return 0; // point is a wall (tree)?
break;
case 1:
return 1; // point is a free field?
break;
case 2:
return 2; // point is a coin (and actually a free field)?
break;
case 3:
return 3; // point is a weapon?
break;
case 5:
return 5; // point is the enemy?
break;
case 9:
return 9; // point is the exit?
break;
}
}
LG
DA