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fsm_game.c
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/*********************************************************************
*
* EE 4 Project - Code Template
*
*********************************************************************
* Processor: PIC18F25K50
* Compiler: XC8 1.35+
* Author: Jeroen Van Aken
* Updated: 03/03/2020
********************************************************************/
/** I N C L U D E S *************************************************/
#include "config.h"
#include <stdlib.h>
/** D E F I N E S ***************************************************/
#define PUSHED 1
#define ON 0
#define OFF 1
/** P R I V A T E V A R I A B L E S *******************************/
unsigned char player0_score;
unsigned char player1_score;
unsigned char player2_score;
unsigned char player3_score;
unsigned char player4_score;
unsigned char score_select;
unsigned char column_select;
unsigned char dode_mensen_count =0;
enum {R_UPDATE,
COL_STATE0,
COL_STATE1,
COL_STATE2,
COL_STATE3,
COL_STATE4
} column_state;
enum {ROW_STATE0,
ROW_STATE1,
ROW_STATE2,
ROW_STATE3,
ROW_STATE4,
EXIT
} row_state;
/********************************************************************
* Function: void fsm_game_init(void)
* PreCondition: None
* Input: None
* Output: None
* Overview: This init sets the start state for this FSM and
* may initialize some counters
********************************************************************/
void fsm_game_init(void) {
column_state = R_UPDATE;
}
void fsm_game(void) {
unsigned char flag_outer;
switch (column_state) {
case R_UPDATE :
IOEXP_send(0x00, 3);
switch(row_state) {
case ROW_STATE0:
ROW1 = OFF;
ROW2 = OFF;
ROW3 = OFF;
ROW4 = OFF;
ROW0 = ON;
flag_outer = 0;
score_select = 0;
row_state = ROW_STATE1;
break;
case ROW_STATE1:
ROW0 = OFF;
ROW2 = OFF;
ROW3 = OFF;
ROW4 = OFF;
ROW1 = ON;
flag_outer = 0;
score_select = 1;
row_state = ROW_STATE2;
break;
case ROW_STATE2:
ROW0 = OFF;
ROW1 = OFF;
ROW3 = OFF;
ROW4 = OFF;
ROW2 = ON;
flag_outer = 0;
score_select = 2;
row_state = ROW_STATE3;
break;
case ROW_STATE3:
ROW0 = OFF;
ROW1 = OFF;
ROW2 = OFF;
ROW4 = OFF;
ROW3 = ON;
flag_outer = 0;
score_select = 3;
row_state = ROW_STATE4;
break;
case ROW_STATE4:
ROW0 = OFF;
ROW1 = OFF;
ROW2 = OFF;
ROW3 = OFF;
ROW4 = ON;
flag_outer = 0;
score_select = 4;
row_state = ROW_STATE0;
break;
case EXIT:
break;
}
case COL_STATE0 :
column_select = 0;
IOEXP_send(0x01, 0);
switch(score_select){
case 0:
if(PLAYER0_BUTTON == OFF && flag_outer == 0 && player0_score >0){
player0_score -= 1;
flag_outer = 1;
if(player0_score == 0){
dode_mensen_count +=1;
}
}
break;
case 1:
if(PLAYER1_BUTTON == ON && flag_outer == 0 && player1_score >0){
player1_score -= 1;
flag_outer = 1;
if(player1_score == 0){
dode_mensen_count +=1;
}
}
break;
case 2:
if(PLAYER2_BUTTON == OFF && flag_outer == 0 && player2_score >0){
player2_score -= 1;
flag_outer = 1;
if(player2_score == 0){
dode_mensen_count +=1;
}
}
break;
case 3:
if(PLAYER3_BUTTON == ON && flag_outer == 0 && player3_score >0){
player3_score -= 1;
flag_outer = 1;
if(player3_score == 0){
dode_mensen_count +=1;
}
}
break;
case 4:
if(PLAYER4_BUTTON == ON && flag_outer == 0 && player4_score >0){
player4_score -= 1;
flag_outer = 1;
if(player4_score == 0){
dode_mensen_count +=1;
}
}
break;
default:
break;
}
column_state = COL_STATE1;
break;
case COL_STATE1 :
column_select = 1;
IOEXP_send(0x02, 0);
switch(score_select){
case 0:
if(PLAYER0_BUTTON == OFF && flag_outer == 0 && player0_score >0){
player0_score -= 1;
flag_outer = 1;
if(player0_score == 0){
dode_mensen_count +=1;
}
}
break;
case 1:
if(PLAYER1_BUTTON == ON && flag_outer == 0 && player1_score >0){
player1_score -= 1;
flag_outer = 1;
if(player1_score == 0){
dode_mensen_count +=1;
}
}
break;
case 2:
if(PLAYER2_BUTTON == OFF && flag_outer == 0 && player2_score >0){
player2_score -= 1;
flag_outer = 1;
if(player2_score == 0){
dode_mensen_count +=1;
}
}
break;
case 3:
if(PLAYER3_BUTTON == ON && flag_outer == 0 && player3_score >0){
player3_score -= 1;
flag_outer = 1;
if(player3_score == 0){
dode_mensen_count +=1;
}
}
break;
case 4:
if(PLAYER4_BUTTON == ON && flag_outer == 0 && player4_score >0){
player4_score -= 1;
flag_outer = 1;
if(player4_score == 0){
dode_mensen_count +=1;
}
}
break;
default:
break;
}
column_state = COL_STATE2;
break;
case COL_STATE2:
column_select = 2;
IOEXP_send(0x04, 0);
column_state = COL_STATE3;
break;
case COL_STATE3:
column_select = 3;
IOEXP_send(0x08, 0);
switch(score_select){
case 0:
if(PLAYER0_BUTTON == ON && flag_outer == 0 && player0_score >0){
player0_score -= 1;
if(player0_score == 0){
dode_mensen_count +=1;
}
}
break;
case 1:
if(PLAYER1_BUTTON == OFF && flag_outer == 0 && player1_score >0){
player1_score -= 1;
if(player1_score == 0){
dode_mensen_count +=1;
}
}
break;
case 2:
if(PLAYER2_BUTTON == ON && flag_outer == 0 && player2_score >0){
player2_score -= 1;
if(player2_score == 0){
dode_mensen_count +=1;
}
}
break;
case 3:
if(PLAYER3_BUTTON == OFF && flag_outer == 0 && player3_score >0){
player3_score -= 1;
if(player3_score == 0){
dode_mensen_count +=1;
}
}
break;
case 4:
if(PLAYER4_BUTTON == OFF && flag_outer == 0 && player4_score >0){
player4_score -= 1;
if(player4_score == 0){
dode_mensen_count +=1;
}
}
break;
default:
break;
}
column_state = COL_STATE4;
break;
case COL_STATE4:
column_select = 4;
IOEXP_send(0x00, 0);
IOEXP_send(0x01, 3);
column_state = R_UPDATE;
break;
default:
column_state = R_UPDATE;
break;
}
}