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/*
* File: main.c
* Author: altug
*
* Created on May 23, 2023, 4:40 PM
*/
#include "the3.h"
#include "lcd.h"
#define teamA 0
#define teamB 1
//special char indexes
#define TEAM_A 0
#define TEAM_B 1
#define TEAM_A_SELECTED 2
#define TEAM_B_SELECTED 3
#define FRISBEE_REAL 4
#define FRISBEE_TARGET 5
#define TEAM_A_WITH_FRISBEE 6
#define TEAM_B_WITH_FRISBEE 7
byte char_ind = 0;
byte selected_player = 0;
byte rb_flag = 0x00;
byte changes;
typedef struct coordinate {
byte x;
byte y;
}coordinate;
typedef struct Player{
byte id;
byte selected_shape;
byte default_shape;
byte shape;
coordinate coor;
byte team;
}Player;
typedef struct Frisbee{
coordinate coor;
byte shape;
}Frisbee;
typedef struct Game{
}Game;
void drawToLCD(Player *player, Frisbee *frisbee);
Player players[4];
Frisbee targetFrisbee;
Frisbee realFrisbee;
void move_up(){
Player *player = &players[selected_player];
LCDGoto(player->coor.x, player->coor.y );
LCDStr(" ");
player->coor.y -= 1;
drawToLCD(player, NULL);
}
void move_right(){
Player *player = &players[selected_player];
LCDGoto(player->coor.x, player->coor.y );
LCDStr(" ");
player->coor.x += 1;
drawToLCD(player, NULL);
}
void move_down(){
Player *player = &players[selected_player];
LCDGoto(player->coor.x, player->coor.y );
LCDStr(" ");
player->coor.y += 1;
drawToLCD(player, NULL);
}
void move_left(){
Player *player = &players[selected_player];
LCDGoto(player->coor.x, player->coor.y );
LCDStr(" ");
player->coor.x -= 1;
drawToLCD(player, NULL);
}
void __interrupt() ISR()
{
changes = PORTB;
if (INTCONbits.TMR0IF) // Check if Timer0 overflow interrupt flag is set
{
rb_flag = 0x00;
// Your code to handle the Timer0 overflow interrupt
TMR0 = 3500;
//LCDGoto(players[0].coor.x, players[0].coor.y);
//LCDDat(' ');
//players[0].coor.x += 1;
//drawToLCD(&players[0], NULL);
// Clear the Timer0 overflow interrupt flag
INTCONbits.TMR0IF = 0;
}
if (INTCONbits.RBIF) //portb<7:4>
{
changes ^= 0xFF;
if ((changes >>= 4) == 1){
move_up();
}
else if ((changes >>= 1) == 1){
move_right();
}
else if ((changes >>= 1 )== 1){
move_down();
}
else if ((changes >>= 1 )== 1){
move_left();
}
// Your code to handle the RB0 interrupt
PORTA = PORTB;
// Clear the RB0 interrupt flag
INTCONbits.RBIF = 0;
rb_flag++;
}
else if (INTCONbits.INT0IF){
LCDStr("a");
INTCONbits.INT0IF = 0;
}
else if (INTCON3bits.INT1F){
if(PORTBbits.RB1 == 1){
Player* p_player = &players[selected_player];
p_player->shape = p_player->default_shape;
selected_player = (++selected_player) % 4;
Player *a_player = &players[selected_player];
a_player->shape = a_player->selected_shape;
drawToLCD(p_player, NULL);
drawToLCD(a_player, NULL);
}
INTCON3bits.INT1F = 0;
}
}
void initializePlayers(Player *players){
players[0].id = 0;
players[0].shape = TEAM_A_SELECTED;
players[0].selected_shape = TEAM_A_SELECTED;
players[0].default_shape = TEAM_A;
players[0].coor.x = 3;
players[0].coor.y = 2;
players[0].team = teamA;
players[1].id = 1;
players[1].shape = TEAM_A;
players[1].selected_shape = TEAM_A_SELECTED;
players[1].default_shape = TEAM_A;
players[1].coor.x = 3;
players[1].coor.y = 3;
players[1].team = teamA;
players[2].id = 2;
players[2].shape = TEAM_B;
players[2].selected_shape = TEAM_B_SELECTED;
players[2].default_shape = TEAM_B;
players[2].coor.x = 14;
players[2].coor.y = 2;
players[2].team = teamB;
players[3].id = 3;
players[3].shape = TEAM_B;
players[3].selected_shape = TEAM_B_SELECTED;
players[3].default_shape = TEAM_B;
players[3].coor.x = 14;
players[3].coor.y = 3;
players[3].team = teamB;
return;
}
void initializeFrisbee(Frisbee *real, Frisbee *target){
real->coor.x = 9;
real->coor.y = 2;
real->shape = FRISBEE_REAL;
target->coor.x = 0;
target->coor.y = 0;
target->shape = FRISBEE_TARGET;
}
void initSpecialCharacters(){
LCDAddSpecialCharacter(TEAM_A, &teamA_player);
LCDAddSpecialCharacter(TEAM_B, &teamB_player);
LCDAddSpecialCharacter(TEAM_A_SELECTED, &selected_teamA_player);
LCDAddSpecialCharacter(TEAM_B_SELECTED, &selected_teamB_player);
LCDAddSpecialCharacter(FRISBEE_REAL, &frisbee);
LCDAddSpecialCharacter(FRISBEE_TARGET, &frisbee_target);
LCDAddSpecialCharacter(TEAM_A_WITH_FRISBEE, &selected_teamA_player_with_frisbee);
LCDAddSpecialCharacter(TEAM_B_WITH_FRISBEE, &selected_teamB_player_with_frisbee);
}
// either draws player or frisbee to lcd
void drawToLCD(Player *player, Frisbee *frisbee){
if( player ){
LCDGoto(player->coor.x,player->coor.y);
LCDDat(player->shape);
}
else if (frisbee){
LCDGoto(frisbee->coor.x, frisbee->coor.y);
LCDDat(frisbee->shape);
}
return;
}
void InitInterrupts(){
byte x = PORTB;
PORTB = 0xFF;
TRISB = 0xFF;
INTCONbits.GIE = 1;
//PORTB <7:4>
ADCON1 = 0x0F;
x = PORTB;
INTCONbits.RBIF = 0; //clear flag
PORTB = 0x00;
INTCONbits.RBIE = 1; //enable
//RB0
INTCONbits.INT0IF = 0; //clear flag
INTCONbits.INT0E = 1; //enable
INTCON2bits.INTEDG0 = 1; //rising edge
INTCON2bits.RBPU = 1;
//RB1
INTCON3bits.INT1F = 0; //clear flag
INTCON3bits.INT1E = 1; //enable
INTCON2bits.INTEDG1 = 0; //rising edge
T0CONbits.TMR0ON = 0; // Turn off Timer0 initially
T0CONbits.T08BIT = 0; // Configure Timer0 as a 16-bit timer
T0CONbits.T0CS = 0; // Select internal instruction cycle clock (Fosc/4) as the clock source
T0CONbits.PSA = 0; // Assign prescaler to Timer0
T0CONbits.T0PS2 = 1; // Set the prescaler value to 1:64
T0CONbits.T0PS1 = 0;
T0CONbits.T0PS0 = 1;
// Calculate the Timer0 initial value based on desired time period
// For a 400ms interrupt with a 1:64 prescaler and 10 MHz clock frequency, the initial value is:
TMR0 = 6800;
// Enable Timer0 overflow interrupt
INTCONbits.TMR0IE = 1; // Enable Timer0 overflow interrupt
// Configure and enable global interrupts
// Start Timer0
T0CONbits.TMR0ON = 1; // Turn on Timer0
}
void main(void) {
initializePlayers(players);
initializeFrisbee(&realFrisbee, &targetFrisbee);
InitLCD();
InitInterrupts();
initSpecialCharacters();
drawToLCD(&players[0], NULL );
drawToLCD(&players[1], NULL );
drawToLCD(&players[2], NULL );
drawToLCD(&players[3], NULL );
drawToLCD(NULL, &realFrisbee );
while (1);
return;
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