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Andrey Danyliuk
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src/Main.c
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221
src/Main.c
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/*
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// Function: Retro Handheld Tetris Game Console source code, including game GUI,
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// Tetris, Snake, Classic Racing, and Obstacle Shooting games.
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v1.0:
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2014-7-26 00:00:00 : Completed the basic model for the Tetris game;
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2014-7-28 02:12:03 : Changed the temporary delay-based keyboard scanning to external interrupt status detection;
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2014-7-28 20:40:37 : Implemented Tetris scoring and score display functions;
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2014-8-1 01:01:54 : Merged and integrated the previously completed Snake game code;
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2014-8-2 17:04:25 : Organized temporary source code to standardize project files;
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2014-8-3 23:50:49 : Built the basic model for the game selection screen and completed the screen transition effect;
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2014-8-5 00:50:04 : Improved LED dot-matrix low-level driver, added software PWM to adjust screen brightness;
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2014-8-7 00:53:35 : Completed the racing game; used PWM layered scanning for screen display to create contrast;
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2014-8-8 02:16:44 : Completed the racing game preview screen and merged all three games;
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2014-8-12 01:47:07 : Changed line-by-line scanning to point-by-point scanning for uniform display brightness; added brightness adjustment;
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2014-9-9 00:32:40 : Modified and optimized several details;
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v1.1:
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2014-9-18 0:57:23 : Re-laid out the circuit, corrected unreasonable design parts, and prepared for PCB production;
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2014-9-19 22:02:36 : Added game sound effects with software-controlled mute switch;
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2014-9-21 14:59:39 : Added three mini digital tubes to display the game score in real-time, sharing the parallel data port with the dot-matrix;
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~~~~~~~~~~~ Note forgotten ~~~~~~~~~~~
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2014-10-20 21:30:15 : Added shooting game and modularized the GUI to simplify the workflow.
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*/
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#include "config.h"
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volatile uint8 data keypad = K_NULL; // Keypad status
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volatile uint8 data keycont = 0; // Keypad debounce timer
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volatile uint16 data tms = 0; // 1ms T0 timer
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bit key_state = 0; // Key state
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uint16 data speeds = 0; // Game speed
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uint16 data scores = 0; // Game score
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bit Glife = 1; // Game life status
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bit sound_ON = 1; // Sound effect switch
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uint8 data duty = 80; // PWM, default brightness
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uint8 data DispRAM[16]={0}; // Display RAM
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uint8 code bitman[8]={1,2,4,8,16,32,64,128}; // Bitmask for locating bits 0-7
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uint8 code num[10][5]= // Yang code
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{
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{0x7,0x5,0x5,0x5,0x7},
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{0x2,0x6,0x2,0x2,0x7},
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{0x7,0x1,0x7,0x4,0x7},
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{0x7,0x1,0x7,0x1,0x7},
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{0x5,0x5,0x7,0x1,0x1},
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{0x7,0x4,0x7,0x1,0x7},
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{0x7,0x4,0x7,0x5,0x7},
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{0x7,0x1,0x1,0x1,0x1},
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{0x7,0x5,0x7,0x5,0x7},
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{0x7,0x5,0x7,0x1,0x7}
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};
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/*********************PORT_INIT********************/
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void Port_Init()
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{
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P0M0 = 0Xff;
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P0M1 = 0X00;
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P1M0 = 0Xff;
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P1M1 = 0X00;
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P2M0 = 0Xff;
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P2M1 = 0X00;
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P3M0 = 0X00;
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P3M1 = 0X00;
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P4M0 = 0Xff;
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P4M1 = 0X00;
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P5M0 = 0Xff;
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P5M1 = 0X00;
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}
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void Init_Timer()
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{
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/****************** Timer 0 Interrupt Setup **********************/
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AUXR |= 0x80; // Set Timer 0 to 1T mode
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TMOD = 0x00; // Set Timer 0 to Mode 0 (16-bit auto-reload)
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TL0 = T1MS; // Initialize timer value
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TH0 = T1MS >> 8;
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TR0 = 1; // Start Timer 0
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ET0 = 1; // Enable Timer 0 interrupt
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/***************** External Interrupt Setup *************************/
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IT0 = 1; // Set INT0 to falling edge trigger
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EX0 = 1; // Enable external interrupt INT0
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IT1 = 1; // Set INT1 to falling edge trigger
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EX1 = 1; // Enable external interrupt INT1
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INT_CLKO |= 0x70; // Enable INT2, INT3, INT4 (EX4 = 1, EX3 = 1, EX2 = 1)
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EA = 1; // Enable global interrupts
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}
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void Array_CLR(uint8 *p)
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{
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uint8 i=0;
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while(i!=16)
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{
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p[i] = 0x00;
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i++;
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}
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}
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void ShowScore(uint score)
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{
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uint8 i;
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uint8 qx,bx,sx,gx;
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qx = score /1000;
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bx = score %1000 /100;
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sx = score %100/10;
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gx = score %10;
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Array_CLR(DispRAM);
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for(i=0;i<5;i++)
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DispRAM[8-i] = (num[sx][i]<<4) | (num[gx][i]);
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for(i=0;i<5;i++)
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DispRAM[14-i] = (num[qx][i]<<5) | (num[bx][i]<<1);
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// MatxDisp(DispRAM,duty);
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}
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void main()
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{
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Port_Init();
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Sound_Init();
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Init_Timer();
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Sound_Tone(1,14,5);// drop
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srand(TL0);
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delayms(100);
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Play_Music(sound_game_start);
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Flash_Screen_Clear();
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while(1)
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{
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tms = 0;
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keypad = K_NULL;// Clear key status
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switch (GUI_Main()) // Enter the user game selection interface and return to the selected game.
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{
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case 1: Tetris_Game(); break;
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case 2: Snake_Game(); break;
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case 3: RAC_Game(); break;
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case 4: Shot_Game(); break;
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}
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Play_Music(sound_game_over);
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Flash_Screen_Clear();
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ShowScore(scores); // Load the score into video memory
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delayms(300);
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keypad = K_NULL;
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while(keypad != K_UP) // Keep the score displayed when the OK button is not pressed.
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{
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MatxDisp(DispRAM,duty);
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SMG_Display(scores,duty);
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}
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}
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}
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/* Timer0 interrupt routine */
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void T0_Timer_1ms_int() interrupt 1 using 1
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{
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if(tms<0xfffe) tms++; // Prevent overflow
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if(key_state){ if(!--keycont) key_state=0;}
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if(PIN_TR2)// If TR2 is enabled, sound effects will begin playing.
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{
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if(!sound_cnt_time--)
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{
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TR2_OFF;
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beep = 1;
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if(music_p[s_p][1])
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{
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Sound_Tone(sound_ON,music_p[s_p][0],music_p[s_p][1]);
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s_p++; // Automatically load the next note to achieve simultaneous sound effects and gameplay.
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}
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}
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}
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if(KEY_DOWN==0 & KEY_UP==0) IAP_CONTR=0x60;// Software reset download program
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}
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void T2_Timer_Sound_freq() interrupt 12 // Interrupt Entry
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{
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beep = ~beep; // Buzzer frequency vibration
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}
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uint8 Get_Kvuale(uint8 key_delay)// Key debouncing processing, parameter is sensitivity adjustment
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{
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uint8 kvuale = K_NULL; // The returned initial value is null.
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if(keypad != K_NULL) // When the key value is not NULL, it means that a key has been pressed.
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{
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if(!key_state) // When the button status bit (state) is 0, it indicates that the first trigger is valid; when it is 1, it indicates a repeated trigger.
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{
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key_state=1; // Set to 1 to prevent repeated triggering.
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kvuale = keypad;// Get Read Key Value
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keycont = key_delay;// Loading debouncing time
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}
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keypad = K_NULL; // Clear key value
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}
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return kvuale;
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}
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/********* External interrupt button area **********/
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void exint0() interrupt 0 //INT0
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{
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keypad = 0;
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}
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void exint1() interrupt 2 //INT1
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{
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keypad = 1;
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}
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void exint2() interrupt 10 //INT2
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{
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keypad = 2;
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}
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void exint3() interrupt 11 //INT3
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{
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keypad = 3;
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}
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void exint4() interrupt 16 //INT4
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{
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keypad = 4;
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}
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