【MM32F103试用体验】貪食蛇(II)

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前言:
本文延續上一篇的設計,主要改良了使用觸控屏的方式來操控貪食蛇,並優化程式碼,按鈕以變色的方式來表達按下和放開,並提供原來官方的電阻屏校準程式,可隨時切換並在校準完後回到遊戲,繼續進行,程式碼部分也供小夥伴們參考

準備:
1. MM32F103 開發板
2. SPI LCD 箱內有附
3. MicroUSB

實作:
1. 延續上一篇的設計,並修改成觸控的方式,主要有以下變更

1. 取消原先三個外部中斷函式的功能
2. 新增KEY0可以啟用電阻屏校準程式的功能
3. 新增4個觸控按鈕
4. 按下和放開的顏色會不一樣,完成一次按和放的動作按鈕功能才會生效

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2. 統整所用到的函式庫

1. KEY - 修改成外部中斷
2. Dealy - 修改成往上計數
3. LCD - 刪除1963以外的初始化
4. LED - 無修改
5. 24CXX -無修改
6. IIC - 無修改
7. SPI - 無修改
8. TOUCH - 無修改
9. malloc - 無修改

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3. 接下來就是依照第一版為基礎,修改成以下程式碼

#include "led.h"
#include "delay.h"
#include "sys.h"
#include "uart.h"
#include "lcd.h"
#include "key.h"
#include "spi.h"
#include "malloc.h"
#include "24cxx.h"
#include "myiic.h"
#include "touch.h"
#include
#define FIELD_ORIG_X 1
#define FIELD_ORIG_Y 1
#define FIELD_WIDTH 239
#define FIELD_HEIGHT 239
#define SNAKE_SHIFT 4
#define SNAKE_SPACE 7
#define SNAKE_LARGE 3
#define EGG_LARGE 2
#define DATA_LEN 5
#define TX_SIZE DATA_LEN
#define RX_SIZE TX_SIZE
#define BTN_WIDTH 65
#define BTN_HEIGHT 40
#define BTN_SPACE 5
#define BTN_ORIG_X 250
#define BTN_ORIG_Y 60
#define UP_BTN_ORIG_YS BTN_ORIG_Y //Start point
#define UP_BTN_ORIG_YE BTN_ORIG_Y+BTN_HEIGHT //End point
#define LEFT_BTN_ORIG_YS BTN_ORIG_Y+(BTN_HEIGHT+BTN_SPACE)
#define LEFT_BTN_ORIG_YE BTN_ORIG_Y+(BTN_HEIGHT+BTN_SPACE)+BTN_HEIGHT
#define RIGHT_BTN_ORIG_YS BTN_ORIG_Y+(BTN_HEIGHT+BTN_SPACE)*2
#define RIGHT_BTN_ORIG_YE BTN_ORIG_Y+(BTN_HEIGHT+BTN_SPACE)*2+BTN_HEIGHT
#define DOWN_BTN_ORIG_YS BTN_ORIG_Y+(BTN_HEIGHT+BTN_SPACE)*3
#define DOWN_BTN_ORIG_YE BTN_ORIG_Y+(BTN_HEIGHT+BTN_SPACE)*3+BTN_HEIGHT
enum
{
LEFT=0,
RIGHT,
UP,
DOWN
};
s16 *snake_x;
s16 *snake_y;
u16 snake_len=3;
u8 snake_dir=RIGHT;
u16 snake_speed=100;
s16 egg_x,egg_y;
u16 score=0;
u8 btn;
unsigned char high[DATA_LEN];
s8 pressed=-1;
void draw_rectangle_fill(u16 x1, u16 y1, u16 x2, u16 y2, u16 color);
void draw_circle_fill(u16 x0,u16 y0,u8 r,u16 color);
void draw_snake(void);
void check_btn(void);
u32 int_pow(u8 m,u8 n);
bool check_game(void);
void change_array_size_t(void);
void check_egg(void);
void move_snake(void);
bool save_high(void);
void reload_game(void);
void left_btn_color_normal(void);
void right_btn_color_normal(void);
void up_btn_color_normal(void);
void down_btn_color_normal(void);
void left_btn_color_pressed(void);
void right_btn_color_pressed(void);
void up_btn_color_pressed(void);
void down_btn_color_pressed(void);
void EXti0_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line0) != RESET)
{
/*delay_ms(10);
if(WK_UP)
{
btn=WKUP_PRES;
}*/
EXTI_ClearITPendingBit(EXTI_Line0);
}
}
void EXTI9_5_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line5) != RESET)
{
delay_ms(10);
if(!KEY0)
{
//btn=KEY0_PRES;
LCD_Clear(WHITE);//清屏
TP_Adjust(); //屏幕校准
TP_Save_Adjdata();
reload_game();
}
EXTI_ClearITPendingBit(EXTI_Line5);
}
}
void EXTI1_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line1) != RESET)
{
/* delay_ms(10);
if(!KEY1)
{
btn=KEY1_PRES;
}*/
EXTI_ClearITPendingBit(EXTI_Line1);
}
}
void draw_rectangle_fill(u16 x1, u16 y1, u16 x2, u16 y2, u16 color)
{
POINT_COLOR=color;
LCD_DrawLine(x1,y1,x2,y1);
LCD_DrawLine(x1,y1,x1,y2);
LCD_DrawLine(x1,y2,x2,y2);
LCD_DrawLine(x2,y1,x2,y2);
LCD_Fill(x1,y1,x2,y2,color);
}
void draw_circle_fill(u16 x0,u16 y0,u8 r,u16 color)
{
int a,b;
int di;
a=0;b=r;
di=3-(r<<1); //判断下个点位置的标志
POINT_COLOR=color;
while(a<=b)
{
LCD_DrawPoint(x0+a,y0-b); //5
LCD_DrawPoint(x0+b,y0-a); //0
LCD_DrawPoint(x0+b,y0+a); //4
LCD_DrawPoint(x0+a,y0+b); //6
LCD_DrawPoint(x0-a,y0+b); //1
LCD_DrawPoint(x0-b,y0+a);
LCD_DrawPoint(x0-a,y0-b); //2
LCD_DrawPoint(x0-b,y0-a); //7
LCD_Fill(x0-a,y0-b,x0+a,y0+b,color);
LCD_Fill(x0-b,y0-a,x0+b,y0+a,color);
a++;
//使用Bresenham算法画圆
if(di<0)di +=4*a+6;
else
{
di+=10+4*(a-b);
b--;
}
}
}
void draw_snake(void)
{
draw_rectangle_fill(egg_x,egg_y,egg_x+EGG_LARGE,egg_y+EGG_LARGE,BLUE);
draw_circle_fill(snake_x[0],snake_y[0],SNAKE_LARGE,BLACK);
draw_circle_fill(snake_x[1],snake_y[1],SNAKE_LARGE,GRAY);
draw_circle_fill(snake_x[snake_len],snake_y[snake_len],SNAKE_LARGE,WHITE);
}
void check_btn(void)
{
if(tp_dev.scan(0))
{
if(tp_dev.x[0]> BTN_ORIG_X && tp_dev.x[0]< BTN_ORIG_X+BTN_WIDTH )
{
if(tp_dev.y[0]> UP_BTN_ORIG_YS && tp_dev.y[0]< UP_BTN_ORIG_YE )
{
up_btn_color_pressed();
pressed=UP;
}
else if (tp_dev.y[0]> LEFT_BTN_ORIG_YS && tp_dev.y[0]< LEFT_BTN_ORIG_YE )
{
left_btn_color_pressed();
pressed=LEFT;
}
else if (tp_dev.y[0]> RIGHT_BTN_ORIG_YS && tp_dev.y[0]< RIGHT_BTN_ORIG_YE )
{
right_btn_color_pressed();
pressed=RIGHT;
}
else if (tp_dev.y[0]> DOWN_BTN_ORIG_YS && tp_dev.y[0]< DOWN_BTN_ORIG_YE )
{
down_btn_color_pressed();
pressed=DOWN;
}
}
}
else
{
if(pressed>=0)
{
switch (pressed)
{
case LEFT:
{
if(snake_dir == UP ||snake_dir == DOWN)
snake_dir=LEFT;
left_btn_color_normal();
break;
}
case RIGHT:
{
if(snake_dir == UP ||snake_dir == DOWN)
snake_dir=RIGHT;
right_btn_color_normal();
break;
}
case UP:
{
if(snake_dir == LEFT ||snake_dir == RIGHT)
snake_dir=UP;
up_btn_color_normal();
break;
}
case DOWN:
{
if(snake_dir == LEFT ||snake_dir == RIGHT)
snake_dir=DOWN;
down_btn_color_normal();
break;
}
}
}
pressed=-1;
}
/*switch (btn)
{
case KEY0_PRES:
{
if(snake_dir == RIGHT)
snake_dir = UP;
else if (snake_dir == LEFT)
snake_dir = UP;
else if (snake_dir == UP)
snake_dir = RIGHT;
else if (snake_dir == DOWN)
snake_dir = RIGHT;
break;
}
case KEY1_PRES:
{
if(snake_dir == RIGHT)
snake_dir = DOWN;
else if (snake_dir == LEFT)
snake_dir = DOWN;
else if (snake_dir == UP)
snake_dir = LEFT;
else if (snake_dir == DOWN)
snake_dir = LEFT;
break;
}
}*/
}
bool check_game(void)
{
u16 i;
for(i=1;i< snake_len;i++)
{
if(snake_x[i]==snake_x[0] && snake_y[i]==snake_y[0])
return true;
}
return false;
}
void change_array_size_t(void)
{
s16 *temp_x;
s16 *temp_y;
temp_x=myrealloc(snake_x,snake_len*sizeof(s16));
if(snake_x!=temp_x)
snake_x=temp_x;
temp_y=myrealloc(snake_y,snake_len*sizeof(s16));
if(snake_y!=temp_y)
snake_y=temp_y;
}
void check_egg(void)
{
if( snake_x[0]==egg_x //D=0
|| snake_x[0]+1==egg_x //D=1
|| snake_x[0]==egg_x+1 //D=1
|| snake_x[0]+2==egg_x //D=2
|| snake_x[0]==egg_x+2 //D=2
|| snake_x[0]-1==egg_x+2 //D=3
|| snake_x[0]-2==egg_x+2 //D=4
)
{
if( snake_y[0]==egg_y //D=0
|| snake_y[0]+1==egg_y //D=1
|| snake_y[0]==egg_y+1 //D=1
|| snake_y[0]+2==egg_y //D=2
|| snake_y[0]==egg_y+2 //D=2
|| snake_y[0]-1==egg_y+2 //D=3
|| snake_y[0]-2==egg_y+2 //D=4
)
{
if(snake_speed>10)
snake_speed--;
snake_len++;
score++;
POINT_COLOR=BLACK;
LCD_ShowxNum(250,5,score,DATA_LEN,24,0x80);
change_array_size_t();
draw_rectangle_fill(egg_x,egg_y,egg_x+EGG_LARGE,egg_y+EGG_LARGE,WHITE);
srand(micros());
egg_x=rand()%(FIELD_WIDTH-2*(EGG_LARGE+SNAKE_LARGE))+(EGG_LARGE+SNAKE_LARGE);// 5-233
egg_y=rand()%(FIELD_HEIGHT-2*(EGG_LARGE+SNAKE_LARGE))+(EGG_LARGE+SNAKE_LARGE);
}
}
}
void move_snake(void)
{
s16 temp_x,temp_y;
s16 orig_x,orig_y;
u16 i;
printf("x=%d,y=%drn",snake_x[0],snake_y[0]);
check_btn();
btn=NO_PRESS;
switch (snake_dir)
{
case LEFT:
{
temp_x=snake_x[0]-SNAKE_SPACE;
temp_y=snake_y[0];
break;
}
case RIGHT:
{
temp_x=snake_x[0]+SNAKE_SPACE;
temp_y=snake_y[0];
break;
}
case UP:
{
temp_x=snake_x[0];
temp_y=snake_y[0]-SNAKE_SPACE;
break;
}
case DOWN:
{
temp_x=snake_x[0];
temp_y=snake_y[0]+SNAKE_SPACE;
break;
}
}
if(temp_x>=(FIELD_WIDTH))
temp_x-=(FIELD_WIDTH-FIELD_ORIG_X);
else if (temp_x<=(FIELD_ORIG_X))
temp_x+=(FIELD_WIDTH-FIELD_ORIG_X);
if (temp_y>=(FIELD_HEIGHT))
temp_y-=(FIELD_HEIGHT-FIELD_ORIG_Y);
else if (temp_y<=(FIELD_ORIG_Y))
temp_y+=(FIELD_HEIGHT-FIELD_ORIG_Y);
for(i=0; i<=snake_len;i++)
{
orig_x=snake_x[i];
orig_y=snake_y[i];
snake_x[i]=temp_x;
snake_y[i]=temp_y;
temp_x=orig_x;
temp_y=orig_y;
}
draw_snake();
}
u32 int_pow(u8 m,u8 n)
{
u32 result=1;
while(n--)
result*=m;
return result;
}
bool save_high(void)
{
u8 temp,t;
unsigned char buf[DATA_LEN];
bool highest=false;
if(atoi((char*)high)
{
highest=true;
for(t=0;t<5;t++)
{
temp=(score/int_pow(10,4-t))%10;
if (temp==0)
{
buf[t]='0';
}
else
{
buf[t]='0'+temp;
}
}
SPIM_SectorErase(SPI1,0);
delay_ms(100);
printf("scores=%srn",buf);
SPIM_PageProgram(SPI1,0,buf,TX_SIZE);
delay_ms(100);
}
return highest;
}
void left_btn_color_normal(void)
{
POINT_COLOR=BROWN;
LCD_DrawRectangle(BTN_ORIG_X,LEFT_BTN_ORIG_YS,BTN_ORIG_X+BTN_WIDTH,LEFT_BTN_ORIG_YE);
LCD_ShowString(BTN_ORIG_X+10,LEFT_BTN_ORIG_YS+7,200,24,24,(u8 *)"LEFT");
}
void right_btn_color_normal(void)
{
POINT_COLOR=BROWN;
LCD_DrawRectangle(BTN_ORIG_X,RIGHT_BTN_ORIG_YS,BTN_ORIG_X+BTN_WIDTH,RIGHT_BTN_ORIG_YE);
LCD_ShowString(BTN_ORIG_X+3,RIGHT_BTN_ORIG_YS+7,200,24,24,(u8 *)"RIGHT");
}
void up_btn_color_normal(void)
{
POINT_COLOR=BROWN;
LCD_DrawRectangle(BTN_ORIG_X,UP_BTN_ORIG_YS,BTN_ORIG_X+BTN_WIDTH,UP_BTN_ORIG_YE);
LCD_ShowString(BTN_ORIG_X+22,UP_BTN_ORIG_YS+7,200,24,24,(u8 *)"UP");
}
void down_btn_color_normal(void)
{
POINT_COLOR=BROWN;
LCD_DrawRectangle(BTN_ORIG_X,DOWN_BTN_ORIG_YS,BTN_ORIG_X+BTN_WIDTH,DOWN_BTN_ORIG_YE);
LCD_ShowString(BTN_ORIG_X+10,DOWN_BTN_ORIG_YS+7,200,24,24,(u8 *)"DOWN");
}
void left_btn_color_pressed(void)
{
POINT_COLOR=CYAN;
LCD_DrawRectangle(BTN_ORIG_X,LEFT_BTN_ORIG_YS,BTN_ORIG_X+BTN_WIDTH,LEFT_BTN_ORIG_YE);
LCD_ShowString(BTN_ORIG_X+10,LEFT_BTN_ORIG_YS+7,200,24,24,(u8 *)"LEFT");
}
void right_btn_color_pressed(void)
{
POINT_COLOR=CYAN;
LCD_DrawRectangle(BTN_ORIG_X,RIGHT_BTN_ORIG_YS,BTN_ORIG_X+BTN_WIDTH,RIGHT_BTN_ORIG_YE);
LCD_ShowString(BTN_ORIG_X+3,RIGHT_BTN_ORIG_YS+7,200,24,24,(u8 *)"RIGHT");
}
void up_btn_color_pressed(void)
{
POINT_COLOR=CYAN;
LCD_DrawRectangle(BTN_ORIG_X,UP_BTN_ORIG_YS,BTN_ORIG_X+BTN_WIDTH,UP_BTN_ORIG_YE);
LCD_ShowString(BTN_ORIG_X+22,UP_BTN_ORIG_YS+7,200,24,24,(u8 *)"UP");
}
void down_btn_color_pressed(void)
{
POINT_COLOR=CYAN;
LCD_DrawRectangle(BTN_ORIG_X,DOWN_BTN_ORIG_YS,BTN_ORIG_X+BTN_WIDTH,DOWN_BTN_ORIG_YE);
LCD_ShowString(BTN_ORIG_X+10,DOWN_BTN_ORIG_YS+7,200,24,24,(u8 *)"DOWN");
}
void reload_game(void)
{
POINT_COLOR=RED;
LCD_DrawRectangle(0,0,239,239);
left_btn_color_normal();
right_btn_color_normal();
up_btn_color_normal();
down_btn_color_normal();
POINT_COLOR=BLACK;
LCD_ShowxNum(250,5,score,DATA_LEN,24,0x80);
POINT_COLOR=GRAY;
LCD_ShowxNum(250,30,atoi((char*)high),DATA_LEN,24,0x80);
}
int main(void)
{
u16 i;
snake_x=mymalloc(snake_len*sizeof(s16));
snake_y=mymalloc(snake_len*sizeof(s16));
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
delay_init(); //延时函数初始化
NVIC_SetPriority(SysTick_IRQn,0);
uart_init(9600); //串口初始化为9600
LED_Init(); //初始化与LED连接的硬件接口
LCD_Init();
KEY_Init();
SPIM_Init(SPI1,0x2);//SPI1频率设置为36M
while(SPIM_ReadID(SPI1))
{
printf("S25FL008A Check Failed!rn");
delay_ms(500);
printf("Please Check! rn");
delay_ms(500);
LED0=!LED0;//DS0闪烁
}
tp_dev.init(); //触摸屏初始化
delay_ms(1500);
//LCD_Clear(WHITE);
POINT_COLOR=RED;
LCD_DrawRectangle(0,0,239,239);
left_btn_color_normal();
right_btn_color_normal();
up_btn_color_normal();
down_btn_color_normal();
for(i=0;i
{
snake_x[i]=140+SNAKE_SHIFT-SNAKE_SPACE*i;
snake_y[i]=140+SNAKE_SHIFT;
}
draw_circle_fill(snake_x[0],snake_y[0],SNAKE_LARGE,BLACK);
for(i=1;i
draw_circle_fill(snake_x[i],snake_y[i],SNAKE_LARGE,GRAY);
egg_x=rand()%(FIELD_WIDTH-2*(EGG_LARGE+SNAKE_LARGE))+(EGG_LARGE+SNAKE_LARGE);// 5-233
egg_y=rand()%(FIELD_HEIGHT-2*(EGG_LARGE+SNAKE_LARGE))+(EGG_LARGE+SNAKE_LARGE);
draw_rectangle_fill(egg_x,egg_y,egg_x+EGG_LARGE,egg_y+EGG_LARGE,BLUE);
POINT_COLOR=BLACK;
LCD_ShowxNum(250,5,score,DATA_LEN,24,0x80);
SPIM_PageRead(SPI1,0,(unsigned char*)high,RX_SIZE);
delay_ms(100);
printf("scores=%srn",high);
POINT_COLOR=GRAY;
LCD_ShowxNum(250,30,atoi((char*)high),DATA_LEN,24,0x80);
while(1)
{
move_snake();
if(check_game())
break;
check_egg();
LED0=!LED0;
delay_ms(snake_speed);
}
POINT_COLOR=GREEN;
if(save_high())
LCD_ShowString(20,100,200,24,24,(u8 *)"YOU GOT HIGH SCORES");
LCD_ShowString(60,130,200,24,24,(u8 *)"GAME OVER");
}

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按鈕方式採用改變顏色覆蓋的方式,來達到按鈕按下和放開的效果,以向左為例left_btn_color_normal()代表未按下,left_btn_color_pressed()代表按下,接著再交由check_btn()函式和旗標pressed變數來決定按下和放開之後所對應的按鈕位置,並依據原來的方向判定是否為有效的轉向

4. 依據上一篇的方法來進行編譯和燒寫

5. 以下是v2.0版本試玩畫面

Fig. 1 試玩畫面

Fig. 2 蛇蛇往左時,按下往上按鈕,同時按鈕也會變色

Fig. 3 放開時就會轉向,同時按鈕也會恢復未按下的顏色

6. 完成本篇設計和試用

V2.0版本,觸控式

DK103.zip (37.09 KB, 下载次数: 2 )