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基于STM32的小游戏——谷歌小恐龙（Chrome Dino Game）(基于stm32的小游戏)
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前言：使用STM32的显示屏其实可以开发出许多有趣的小项目，比如：多功能菜单，小游戏等等。其中，STM32F1XX由于Cortex-M3芯片的性能一般（计算量与内存），所以能够实现的小游戏不多，较为常见的：贪吃蛇，俄罗斯方块，飞机大战等。本文将给大家实现一款较为新颖的小游戏——谷歌小恐龙（Chrome Dino Game）。简单使用0.96寸OLED屏幕搭配STM32F1系列的MCU就可以实现，硬件要求很低。（本游戏代码基于HAL库实现，文末有代码开源）
实验硬件：STM32F103ZET6；0.96寸OLED；2个KEY按键
硬件实物图：
效果图：
引脚连接：
OLED模块：
VCC --> 3.3V
GND --> GND
SCL --> PB10
SDA --> PB11
KEY按键模块：
KEY0 --> PE3
KEY1 --> PE4
注意：这里按键直接采用了正点原子精英板上的固有按键，自己打板的话，视情况下而定。
一、谷歌小恐龙（Chrome Dino Game）简介谷歌小恐龙（Chrome Dino Game）顾名思义是由Google公司首创出来的小游戏。其初始目的为在Google浏览器出现互联网信号丢失时，排解用户等待联网信号时的无聊难受。
这个游戏的最大优点是它可以在没有互联网的情况下玩。这是Chrome浏览器中一款原始的无止境跑步游戏。主角是一只可爱的霸王龙，它在古老的沙漠中小跑。当然，恐龙游戏有它的目的：避免仙人掌和翼手龙。虽然游戏看起来很简单，但并不需要很长时间就能变得很难，因为游戏的速度会随着你的进步而不断提高。
本文就以谷歌小恐龙（Chrome Dino Game）游戏为原型，使用STM32于0.96寸OLED屏幕上尽可能地复现了谷歌小恐龙游戏。
谷歌小恐龙（Chrome Dino Game）实机效果：
原游戏网址：谷歌小恐龙在线 - 免费玩谷歌小恐龙 (dino.zone)
二、OLED简介关于OLED的使用与原理不熟悉的笔者欢迎去笔者另一篇文章学习，由于篇幅问题，这里就不过多讲诉。
【强烈推荐】基于stm32的OLED各种显示实现（含动态图）_混分巨兽龙某某的博客-CSDN博客_oled显示stm32https://blog.csdn.net/black_sneak/article/details/125418537?spm=1001.2014.3001.5501
三、KEY按键开发板上除了有经典的流水灯之外，还有一个必备的练习硬件--按键（key）。
正常地独立按键KEY其实使用很简单，就是基于GPIO引脚的读取操作。唯一需要注意的点：按键按下去之后到底时低电平还是高电平。
笔者这里直接使用了正点原子精英版STM32上的按键KEY，按键原理图如下：
考虑到本次小游戏只使用2个按键KEY，这里取KEY0和KEY1。KEY0和KEY1按下后为低电平有效。（这里读者朋友可以根据实际情况去设置）
四、CubeMX配置1、RCC配置外部高速晶振（精度更高）——HSE；
2、SYS配置：Debug设置成Serial Wire（否则可能导致芯片自锁）；
3、I2C2配置：这里不直接使用CubeMX的I2C2，使用GPIO模拟（PB10：CLK；PB11：SDA）
4、KEY按键配置：PE3与PE4设置为端口输入（开发板原理图）
5、时钟树配置：
6、工程配置
五、代码讲解5.1 OLED驱动代码此部分OLED的基本驱动函数，笔者使用的是I2C驱动的0.96寸OLED屏幕。所以，首先需要使用GPIO模拟I2C通讯。随后，使用I2C通讯去驱动OLED。（此部分代码包含了屏幕驱动与基础显示，如果对OLED显示不太理解的朋友可以去看看上文提到的笔者的另一篇文章）
oled.h：
#ifndef __OLED_H#define __OLED_H#include "main.h"#define u8 uint8_t#define u32 uint32_t#define OLED_CMD 0//写命令#define OLED_DATA 1//写数据#define OLED0561_ADD0x78 // OLED I2C地址#define COM0x00 // OLED #define DAT 0x40 // OLED #define OLED_MODE 0#define SIZE 8#define XLevelL0x00#define XLevelH0x10#define Max_Column128#define Max_Row64#defineBrightness0xFF#define X_WIDTH 128#define Y_WIDTH 64//-----------------OLED IIC GPIO进行模拟----------------#define OLED_SCLK_Clr() HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_RESET) //GPIO_ResetBits(GPIOB,GPIO_Pin_10)//SCL#define OLED_SCLK_Set() HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_SET) //GPIO_SetBits(GPIOB,GPIO_Pin_10)#define OLED_SDIN_Clr() HAL_GPIO_WritePin(GPIOB, GPIO_PIN_11, GPIO_PIN_RESET) // GPIO_ResetBits(GPIOB,GPIO_Pin_11)//SDA#define OLED_SDIN_Set() HAL_GPIO_WritePin(GPIOB, GPIO_PIN_11, GPIO_PIN_SET) // GPIO_SetBits(GPIOB,GPIO_Pin_11)//I2C GPIO模拟void IIC_Start();void IIC_Stop();void IIC_WaitAck();void IIC_WriteByte(unsigned char IIC_Byte);void IIC_WriteCommand(unsigned char IIC_Command);void IIC_WriteData(unsigned char IIC_Data);void OLED_WR_Byte(unsigned dat,unsigned cmd);//功能函数void OLED_Init(void);void OLED_WR_Byte(unsigned dat,unsigned cmd);void OLED_FillPicture(unsigned char fill_Data);void OLED_SetPos(unsigned char x, unsigned char y);void OLED_DisplayOn(void);void OLED_DisplayOff(void);void OLED_Clear(void);void OLED_On(void);void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size);u32 oled_pow(u8 m,u8 n);void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2);void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size);#endifoled.c：
#include "oled.h"#include "asc.h" //字库（可以自己制作）#include "main.h"/********************GPIO 模拟I2C*******************///注意：这里没有直接使用HAL库中的模拟I2C/**********************************************//IIC Start**********************************************/void IIC_Start(){OLED_SCLK_Set() ;OLED_SDIN_Set();OLED_SDIN_Clr();OLED_SCLK_Clr();}/**********************************************//IIC Stop**********************************************/void IIC_Stop(){OLED_SCLK_Set() ;OLED_SDIN_Clr();OLED_SDIN_Set();}void IIC_WaitAck(){OLED_SCLK_Set() ;OLED_SCLK_Clr();}/**********************************************// IIC Write byte**********************************************/void IIC_WriteByte(unsigned char IIC_Byte){unsigned char i;unsigned char m,da;da=IIC_Byte;OLED_SCLK_Clr();for(i=0;i<8;i++){m=da;//OLED_SCLK_Clr();m=m&0x80;if(m==0x80){OLED_SDIN_Set();}else OLED_SDIN_Clr();da=da<<1;OLED_SCLK_Set();OLED_SCLK_Clr();}}/**********************************************// IIC Write Command**********************************************/void IIC_WriteCommand(unsigned char IIC_Command){ IIC_Start(); IIC_WriteByte(0x78); //Slave address,SA0=0IIC_WaitAck(); IIC_WriteByte(0x00);//write commandIIC_WaitAck(); IIC_WriteByte(IIC_Command);IIC_WaitAck(); IIC_Stop();}/**********************************************// IIC Write Data**********************************************/void IIC_WriteData(unsigned char IIC_Data){ IIC_Start(); IIC_WriteByte(0x78);//D/C#=0; R/W#=0IIC_WaitAck(); IIC_WriteByte(0x40);//write dataIIC_WaitAck(); IIC_WriteByte(IIC_Data);IIC_WaitAck(); IIC_Stop();}void OLED_WR_Byte(unsigned dat,unsigned cmd){if(cmd){IIC_WriteData(dat);}else{IIC_WriteCommand(dat);}}void OLED_Init(void){HAL_Delay(100);//这个延迟很重要OLED_WR_Byte(0xAE,OLED_CMD);//--display offOLED_WR_Byte(0x00,OLED_CMD);//---set low column addressOLED_WR_Byte(0x10,OLED_CMD);//---set high column addressOLED_WR_Byte(0x40,OLED_CMD);//--set start line addressOLED_WR_Byte(0xB0,OLED_CMD);//--set page addressOLED_WR_Byte(0x81,OLED_CMD); // contract controlOLED_WR_Byte(0xFF,OLED_CMD);//--128OLED_WR_Byte(0xA1,OLED_CMD);//set segment remapOLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverseOLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 dutyOLED_WR_Byte(0xC8,OLED_CMD);//Com scan directionOLED_WR_Byte(0xD3,OLED_CMD);//-set display offsetOLED_WR_Byte(0x00,OLED_CMD);//OLED_WR_Byte(0xD5,OLED_CMD);//set osc divisionOLED_WR_Byte(0x80,OLED_CMD);//OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode offOLED_WR_Byte(0x05,OLED_CMD);//OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge PeriodOLED_WR_Byte(0xF1,OLED_CMD);//OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartionOLED_WR_Byte(0x12,OLED_CMD);//OLED_WR_Byte(0xDB,OLED_CMD);//set VcomhOLED_WR_Byte(0x30,OLED_CMD);//OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enableOLED_WR_Byte(0x14,OLED_CMD);//OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panelHAL_Delay(100);OLED_FillPicture(0x0);}/********************************************// OLED_FillPicture********************************************/void OLED_FillPicture(unsigned char fill_Data){unsigned char m,n;for(m=0;m<8;m++){OLED_WR_Byte(0xb0+m,0);//page0-page1OLED_WR_Byte(0x00,0);//low column start addressOLED_WR_Byte(0x10,0);//high column start addressfor(n=0;n<128;n++){OLED_WR_Byte(fill_Data,1);}}}//坐标设置void OLED_SetPos(unsigned char x, unsigned char y){ OLED_WR_Byte(0xb0+y,OLED_CMD);OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);OLED_WR_Byte((x&0x0f),OLED_CMD);}//开启OLED显示void OLED_DisplayOn(void){OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令OLED_WR_Byte(0X14,OLED_CMD); //DCDC ONOLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON}//关闭OLED显示void OLED_DisplayOff(void){OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFFOLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF}//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!void OLED_Clear(void){u8 i,n;for(i=0;i<8;i++){OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址（0~7）OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA);} //更新显示}void OLED_On(void){u8 i,n;for(i=0;i<8;i++){OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址（0~7）OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址for(n=0;n<128;n++)OLED_WR_Byte(1,OLED_DATA);} //更新显示}//在指定位置显示一个字符,包括部分字符//x:0~127//y:0~63//mode:0,反白显示;1,正常显示//size:选择字体 16/12void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size){unsigned char c=0,i=0;c=chr-' ';//得到偏移后的值if(x>Max_Column-1){x=0;y=y+2;}if(Char_Size ==16){OLED_SetPos(x,y);for(i=0;i<8;i++)OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);OLED_SetPos(x,y+1);for(i=0;i<8;i++)OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);}else {OLED_SetPos(x,y);for(i=0;i<6;i++)OLED_WR_Byte(F6x8[c][i],OLED_DATA);}}//m^n函数u32 oled_pow(u8 m,u8 n){u32 result=1;while(n--)result*=m;return result;}//显示2个数字//x,y :起点坐标//len :数字的位数//size:字体大小//mode:模式0,填充模式;1,叠加模式//num:数值(0~4294967295);void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2){u8 t,temp;u8 enshow=0;for(t=0;t<len;t++){temp=(num/oled_pow(10,len-t-1))%10;if(enshow==0&&t<(len-1)){if(temp==0){//OLED_ShowChar(x+(size2/2)*t,y,' ',size2);OLED_ShowChar(x+(size2/2)*t,y,'0',size2);continue;}else enshow=1;} OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2);}}//显示一个字符号串void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size){unsigned char j=0;while (chr[j]!='\0'){OLED_ShowChar(x,y,chr[j],Char_Size);x+=8;if(x>120){x=0;y+=2;}j++;}}5.2 谷歌小恐龙游戏图形绘制代码该部分为整个项目代码的核心部分之一，任何一个游戏都是需要去绘制和构建游戏的图形以及模型的。好的游戏往往都具有很好的游戏模型和精美UI，很多3A大作都具备这样的特性。
dinogame.h:
#ifndef __DINOGAME_H#define __DINOGAME_Hvoid OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]);void OLED_DrawBMPFast(const unsigned char BMP[]);void oled_drawbmp_block_clear(int bx, int by, int clear_size);void OLED_DrawGround();void OLED_DrawCloud();void OLED_DrawDino();void OLED_DrawCactus();int OLED_DrawCactusRandom(unsigned char ver, unsigned char reset);int OLED_DrawDinoJump(char reset);void OLED_DrawRestart();void OLED_DrawCover();#endifdinogame.c代码：
#include "oled.h"#include "oledfont.h"#include "stdlib.h"/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]){ unsigned int j=0; unsigned char x,y; if(y1%8==0) y=y1/8; else y=y1/8+1;for(y=y0;y<y1;y++){OLED_SetPos(x0,y);for(x=x0;x<x1;x++) { OLED_WR_Byte(BMP[j++],OLED_DATA); }}}// 快速绘制图像void OLED_DrawBMPFast(const unsigned char BMP[]){unsigned int j = 0;unsigned char x, y;for (y = 0; y < 8; y++){OLED_SetPos(0, y);IIC_Start();IIC_WriteByte(0x78);IIC_WaitAck();IIC_WriteByte(0x40);IIC_WaitAck();for (x = 0; x < 128; x++){IIC_WriteByte(BMP[j++]);IIC_WaitAck();}IIC_Stop();}}void oled_drawbmp_block_clear(int bx, int by, int clear_size){unsigned int i;OLED_SetPos(bx, by);IIC_Start();IIC_WriteByte(0x78);IIC_WaitAck();IIC_WriteByte(0x40);IIC_WaitAck();for (i = 0; i < clear_size; i++){if (bx + i>128) break;IIC_WriteByte(0x0);IIC_WaitAck();}IIC_Stop();}void OLED_DrawGround(){static unsigned int pos = 0;unsigned char speed = 5;unsigned int ground_length = sizeof(GROUND);unsigned char x;OLED_SetPos(0, 7);IIC_Start();IIC_WriteByte(0x78);IIC_WaitAck();IIC_WriteByte(0x40);IIC_WaitAck();for (x = 0; x < 128; x++){IIC_WriteByte(GROUND[(x+pos)%ground_length]);IIC_WaitAck();}IIC_Stop();pos = pos + speed;//if(pos>ground_length) pos=0;}// 绘制云朵void OLED_DrawCloud(){static int pos = 128;static char height=0;char speed = 3;unsigned int i=0;int x;int start_x = 0;int length = sizeof(CLOUD);unsigned char byte;//if (pos + length <= -speed) pos = 128;if (pos + length <= -speed){pos = 128;height = rand()%3;}if(pos < 0){start_x = -pos;OLED_SetPos(0, 1+height);}else{OLED_SetPos(pos, 1+height);}IIC_Start();IIC_WriteByte(0x78);IIC_WaitAck();IIC_WriteByte(0x40);IIC_WaitAck();for (x = start_x; x < length + speed; x++){if (pos + x > 127) break;if (x < length) byte = CLOUD[x];else byte = 0x0;IIC_WriteByte(byte);IIC_WaitAck();}IIC_Stop();pos = pos - speed;}// 绘制小恐龙void OLED_DrawDino(){static unsigned char dino_dir = 0;unsigned int j=0;unsigned char x, y;unsigned char byte;dino_dir++;dino_dir = dino_dir%2;for(y=0; y<2; y++){OLED_SetPos(16, 6+y);IIC_Start();IIC_WriteByte(0x78);IIC_WaitAck();IIC_WriteByte(0x40);IIC_WaitAck();for (x = 0; x < 16; x++){j = y*16 + x;byte = DINO[dino_dir][j];IIC_WriteByte(byte);IIC_WaitAck();}IIC_Stop();}}// 绘制仙人掌障碍物void OLED_DrawCactus(){char speed = 5;static int pos = 128;int start_x = 0;int length = sizeof(CACTUS_2)/2;unsigned int j=0;unsigned char x, y;unsigned char byte;if (pos + length <= 0){oled_drawbmp_block_clear(0, 6, speed);pos = 128;}for(y=0; y<2; y++){if(pos < 0){start_x = -pos;OLED_SetPos(0, 6+y);}else{OLED_SetPos(pos, 6+y);}IIC_Start();IIC_WriteByte(0x78);IIC_WaitAck();IIC_WriteByte(0x40);IIC_WaitAck();for (x = start_x; x < length; x++){if (pos + x > 127) break;j = y*length + x;byte = CACTUS_2[j];IIC_WriteByte(byte);IIC_WaitAck();}IIC_Stop();}oled_drawbmp_block_clear(pos + length, 6, speed); // 清除残影pos = pos - speed;}// 绘制随机出现的仙人掌障碍物int OLED_DrawCactusRandom(unsigned char ver, unsigned char reset){char speed = 5;static int pos = 128;int start_x = 0;int length = 0;unsigned int i=0, j=0;unsigned char x, y;unsigned char byte;if (reset == 1){pos = 128;oled_drawbmp_block_clear(0, 6, speed);return 128;}if (ver == 0) length = 8; //sizeof(CACTUS_1) / 2;else if (ver == 1) length = 16; //sizeof(CACTUS_2) / 2;else if (ver == 2 || ver == 3) length = 24;for(y=0; y<2; y++){if(pos < 0){start_x = -pos;OLED_SetPos(0, 6+y);}else{OLED_SetPos(pos, 6+y);}IIC_Start();IIC_WriteByte(0x78);IIC_WaitAck();IIC_WriteByte(0x40);IIC_WaitAck();for (x = start_x; x < length; x++){if (pos + x > 127) break;j = y*length + x;if (ver == 0) byte = CACTUS_1[j];else if (ver == 1) byte = CACTUS_2[j];else if(ver == 2) byte = CACTUS_3[j];else byte = CACTUS_4[j];IIC_WriteByte(byte);IIC_WaitAck();}IIC_Stop();}oled_drawbmp_block_clear(pos + length, 6, speed);pos = pos - speed;return pos + speed;}// 绘制跳跃小恐龙int OLED_DrawDinoJump(char reset){char speed_arr[] = {1, 1, 3, 3, 4, 4, 5, 6, 7};static char speed_idx = sizeof(speed_arr)-1;static int height = 0;static char dir = 0;//char speed = 4;unsigned int j=0;unsigned char x, y;char offset = 0;unsigned char byte;if(reset == 1){height = 0;dir = 0;speed_idx = sizeof(speed_arr)-1;return 0;}if (dir==0){height += speed_arr[speed_idx];speed_idx --;if (speed_idx<0) speed_idx = 0;}if (dir==1){height -= speed_arr[speed_idx];speed_idx ++;if (speed_idx>sizeof(speed_arr)-1) speed_idx = sizeof(speed_arr)-1;}if(height >= 31){dir = 1;height = 31;}if(height <= 0){dir = 0;height = 0;}if(height <= 7) offset = 0;else if(height <= 15) offset = 1;else if(height <= 23) offset = 2;else if(height <= 31) offset = 3;else offset = 4;for(y=0; y<3; y++) // 4{OLED_SetPos(16, 5- offset + y);IIC_Start();IIC_WriteByte(0x78);IIC_WaitAck();IIC_WriteByte(0x40);IIC_WaitAck();for (x = 0; x < 16; x++) // 32{j = y*16 + x; // 32byte = DINO_JUMP[height%8][j];IIC_WriteByte(byte);IIC_WaitAck();}IIC_Stop();}if (dir == 0) oled_drawbmp_block_clear(16, 8- offset, 16);if (dir == 1) oled_drawbmp_block_clear(16, 4- offset, 16);return height;}// 绘制重启void OLED_DrawRestart(){unsigned int j=0;unsigned char x, y;unsigned char byte;//OLED_SetPos(0, 0);for (y = 2; y < 5; y++){OLED_SetPos(52, y);IIC_Start();IIC_WriteByte(0x78);IIC_WaitAck();IIC_WriteByte(0x40);IIC_WaitAck();for (x = 0; x < 24; x++){byte = RESTART[j++];IIC_WriteByte(byte);IIC_WaitAck();}IIC_Stop();}OLED_ShowString(10, 3, "GAME", 16);OLED_ShowString(86, 3, "OVER", 16);}// 绘制封面void OLED_DrawCover(){OLED_DrawBMPFast(COVER);}此部分函数主要是实现快速绘制出游戏所需要的模型组件，模型包括：游戏初始化封面，游戏结束封面，小恐龙（跳跃的小恐龙），沙漠地面，随机出现的仙人掌障碍物（1，2，3个），云朵等。
注意：此部分绘制的属于动态化图片绘制，所绘制的图片会自右向左移动。
关于游戏模型基础组件，采用Img2Lcd2.9软件对图片进行取模，注意考虑到0.96寸的OLED屏幕大小有限，取模图片尽可能小一点。
例子：
取模小恐龙模组：
Img2Lcd2.9软件如下操作取模：
其余，游戏图片模组依此法进行取模，注意图片取得的大小。
游戏图片取模库oledfont.h：
#ifndef __OLEDFONT_H#define __OLEDFONT_H//该文件主要为DinoGame的图像库/************************************6*8???************************************/const unsigned char GROUND[] ={0xc8, 0xc8, 0xc8, 0x28, 0x28, 0x28, 0x8, 0xc8, 0xc8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x48, 0x8, 0x8, 0xc8, 0xc8, 0xc8, 0x8, 0x38, 0x38, 0x8,0x8, 0x8, 0x8, 0x8, 0x48, 0x48, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x8, 0x48, 0x48, 0x48, 0x8, 0x8, 0x8, 0x28, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0xc8, 0x8,0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x48, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x38, 0x38, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x48, 0x8, 0x28, 0x28, 0x8, 0x48, 0x48, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x8, 0x8, 0x8, 0x8, 0x38, 0x38, 0x8, 0x68, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x8, 0x8, 0x8, 0x8,0x8, 0x8, 0x8, 0x48, 0x8, 0x48, 0x48, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x48, 0x48, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x68, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0xc8, 0xc8, 0x8, 0x9, 0x8, 0x8, 0x8, 0x8, 0x8, 0x38, 0x38, 0x8, 0x8, 0x28, 0x8, 0x9, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x28, 0x8, 0x8, 0x8, 0x9, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x68, 0x68, 0x8, 0xc9, 0xc8, 0xc8, 0x8, 0x8, 0x8, 0xc8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x29, 0x8, 0x8, 0x8, 0x8,0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x48, 0x49, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x68, 0x68, 0x8, 0x8, 0x28, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x68, 0x68, 0x8, 0x8, 0xc8, 0xc8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x28, 0x8, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x28, 0x28, 0x8, 0x8, 0x48, 0x8, 0x38,0x38, 0x8, 0x8, 0x8, 0x8, 0xc8, 0x8, 0x8, 0x8, 0x8, 0x8, 0xc8, 0xc8, 0xc8, 0x28, 0x28, 0x28, 0x8, 0xc8, 0xc8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x48, 0x48, 0x8, 0x8, 0xc8, 0xc8, 0xc8, 0x8, 0x38, 0x38, 0x8, 0x8, 0x8, 0x8, 0x8, 0x48, 0x48, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x28, 0x8, 0x48, 0x48, 0x48, 0x8, 0x8, 0x8, 0x28, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0xc8, 0x8, 0x8, 0x8, 0xc, 0x6, 0x2, 0x42, 0x42, 0x6, 0xc, 0x8, 0x8, 0x8, 0x8, 0x38, 0x38, 0x8, 0x18, 0x18, 0x10, 0x10, 0x10, 0x10, 0x10, 0x18, 0x18, 0x8, 0x48, 0x8, 0x28, 0x28, 0x8, 0x48, 0x48, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x28, 0x8, 0x8, 0x8, 0x8, 0x38, 0x38, 0x68, 0x68, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x48, 0x8, 0x48, 0x48, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x48, 0x48, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x68, 0x68, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0xc8, 0xc8, 0xc8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x38, 0x38, 0x8, 0x8, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x28, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x68, 0x68, 0x8, 0xc8, 0xc8, 0xc8, 0x8, 0x8, 0x8, 0xc8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x28, 0x8, 0x8, 0x8, 0x8, 0xc, 0x4, 0x6, 0x2, 0x2, 0x6, 0xc, 0x4c, 0x48, 0x8, 0x8, 0x8, 0xc, 0x4, 0x6, 0x2, 0x2, 0x6, 0xc, 0xc, 0x68, 0x68, 0x8, 0x28, 0x28, 0x28, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x68, 0x68, 0x68, 0x8, 0x8, 0xc8, 0xc8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x28, 0x28, 0x28, 0x28, 0x8, 0x8, 0x8,0x8, 0x8, 0x28, 0x28, 0x28, 0x8, 0x8, 0x48, 0x28, 0x38, 0x38, 0x8, 0x8, 0x8, 0x8, 0xc8, 0x8, 0x8,};const unsigned char CLOUD[] ={0x80, 0xc0, 0xe0, 0x70, 0xb0, 0xb0, 0xb0, 0x98, 0x88, 0x8e, 0x83, 0x83, 0x83, 0x81, 0x81, 0x93, 0x8e, 0x8c, 0x88, 0x88, 0x98, 0xb0, 0xf0, 0xc0};const unsigned char DINO[2][32] ={0xe0, 0x80, 0x0, 0x0, 0x0, 0x80, 0xc0, 0xe0, 0xfe, 0xff, 0xfd, 0xbf, 0xaf, 0x2f, 0x2f, 0xe, 0x3, 0x7, 0xf, 0x1e, 0xff, 0xbf, 0x1f, 0x1f, 0x3f, 0x2f, 0x7, 0x0, 0x1, 0x0, 0x0, 0x0,0xe0, 0x80, 0x0, 0x0, 0x0, 0x80, 0xc0, 0xe0, 0xfe, 0xff, 0xfd, 0xbf, 0xaf, 0x2f, 0x2f, 0xe, 0x3, 0x7, 0xf, 0x1e, 0x3f, 0x7f, 0x5f, 0x3f, 0xff, 0x8f, 0x7, 0x0, 0x1, 0x0, 0x0, 0x0};const unsigned char DINO_JUMP[8][48] = //{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0x80, 0x0, 0x0, 0x0, 0x80, 0xc0, 0xc0, 0xfe, 0xff, 0xfd, 0xbf, 0xaf, 0x2f, 0x2f, 0xe, 0x3, 0x7, 0xf, 0x1f, 0xff, 0xbf, 0x1f, 0x3f, 0xff, 0x8f, 0x7, 0x0, 0x1, 0x0, 0x0, 0x0,0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x0, 0xf0, 0xc0, 0x80, 0x80, 0x80, 0xc0, 0xe0, 0xe0, 0xff, 0xff, 0xfe, 0x5f, 0xd7, 0x17, 0x17, 0x7, 0x1, 0x3, 0x7, 0xf, 0x7f, 0x5f, 0xf, 0x1f, 0x7f, 0x47, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0,0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0xc0, 0x40, 0xc0, 0xc0, 0xc0, 0xc0, 0x80, 0xf8, 0xe0, 0xc0, 0xc0, 0xc0, 0xe0, 0xf0, 0xf0, 0xff, 0xff, 0xff, 0x2f, 0x6b, 0xb, 0xb, 0x3, 0x0, 0x1, 0x3, 0x7, 0x3f, 0x2f, 0x7, 0xf, 0x3f, 0x23, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0,0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc0, 0xe0, 0xa0, 0xe0, 0xe0, 0xe0, 0xe0, 0xc0, 0x7c, 0xf0, 0xe0, 0xe0, 0xe0, 0xf0, 0xf8, 0xf8, 0xff, 0xff, 0xff, 0x17, 0x35, 0x5, 0x5, 0x1, 0x0, 0x0, 0x1, 0x3, 0x1f, 0x17, 0x3, 0x7, 0x1f, 0x11, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0xf0, 0xd0, 0xf0, 0xf0, 0xf0, 0xf0, 0xe0, 0x3e, 0x78, 0xf0, 0xf0, 0xf0, 0xf8, 0xfc, 0xfc, 0xff, 0xff, 0x7f, 0xb, 0x1a, 0x2, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0xf, 0xb, 0x1, 0x3, 0xf, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf0, 0xf8, 0xe8, 0xf8, 0x78, 0x78, 0x78, 0x70, 0x1f, 0x3c, 0x78, 0xf8, 0xf8, 0xfc, 0xfe, 0xfe, 0xff, 0x7f, 0x3f, 0x5, 0xd, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7,0x5, 0x0, 0x1, 0x7, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf8, 0xfc, 0xf4, 0xfc, 0xbc, 0xbc, 0xbc, 0x38, 0xf, 0x1e, 0x3c, 0x7c, 0xfc, 0xfe, 0x7f, 0xff, 0xff, 0x3f, 0x1f, 0x2, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3,0x2, 0x0, 0x0, 0x3, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,0xc0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x80, 0xfc, 0xfe, 0xfa, 0x7e, 0x5e, 0x5e, 0x5e, 0x1c, 0x7, 0xf, 0x1e, 0x3e, 0xfe, 0x7f, 0x3f, 0x7f, 0xff, 0x1f, 0xf, 0x1, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1,0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,};const unsigned char CACTUS_1[] = {0xf0, 0xf0, 0x0, 0xff, 0xff, 0x0, 0xf0, 0xf0, 0x3, 0x7, 0x86, 0xff, 0xff, 0x6, 0x3, 0x1};const unsigned char CACTUS_2[] = {0xf0, 0xe0, 0x0, 0xff, 0xfe, 0x80, 0xfc, 0x0, 0x0, 0x7c, 0xc0, 0xfe, 0xff, 0x0, 0x80, 0xfc,0x3, 0x7, 0x6, 0xff, 0xff, 0x1, 0x10, 0x90, 0x90, 0x90, 0x0, 0xff, 0xff, 0x3, 0x3, 0x1};const unsigned char CACTUS_3[] = {0xf0, 0xe0, 0x0, 0xff, 0xfe, 0x80, 0xfc, 0x0, 0xfc, 0xfe, 0x0, 0xff, 0xff, 0x0, 0xf8, 0xf0,0x0, 0xfe, 0x80, 0xfe, 0xff, 0xfe, 0x78, 0xfc, 0x13, 0x17, 0x6, 0xff, 0xff, 0x1, 0x10, 0x10,0x13, 0x37, 0x4, 0xff, 0xff, 0x8, 0xf, 0x17, 0x10, 0x10, 0x1, 0xff, 0xff, 0x3, 0x13, 0x11};const unsigned char CACTUS_4[] = { 0xf0, 0xe0, 0x0, 0xff, 0xfe, 0x0, 0xf0, 0x0, 0xc0, 0x0, 0xff, 0xfe, 0x60, 0x3c, 0x80, 0x0,0x0, 0x7c, 0xc0, 0xfe, 0xff, 0x0, 0xf0, 0xf8, 0x43, 0x47, 0x86, 0xff, 0xff, 0x26, 0xa3,0xa0, 0x27, 0x4, 0xff, 0xff, 0x0, 0x8, 0xff, 0x88, 0x2f, 0x0, 0x0, 0xff, 0xff, 0x6, 0x23, 0x21};const unsigned char RESTART[] ={0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0x3f, 0x3f, 0x3f, 0xf, 0x1f, 0x3f, 0xff, 0xff, 0xff, 0x3f, 0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc,0xff, 0xff, 0xff, 0xff, 0xff, 0x0, 0x0, 0x7e, 0x7e, 0x7e, 0x78, 0x7c, 0x7e, 0x7f, 0x7f, 0x7f, 0x7e, 0x0, 0x0, 0xff, 0xff, 0xff, 0xff, 0xff,0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f,};const unsigned char COVER[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0xf0, 0x30, 0x30, 0x30, 0x30, 0x0, 0x0, 0xf0, 0xf0, 0xc0, 0xc0, 0xf0, 0xf0, 0x0, 0x0, 0xf0, 0xf0, 0xb0, 0xb0, 0x70, 0x60, 0x0, 0x0, 0xe0, 0xf0, 0x30, 0x30, 0xf0, 0xe0, 0x0, 0x0, 0xf0, 0xf0, 0x30, 0xf0, 0xf0, 0x30, 0xf0, 0xe0, 0x0, 0xe0, 0xe0, 0x90, 0x90, 0x90, 0x90, 0x90, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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按键代码key：
int get_key_val(){if(HAL_GPIO_ReadPin(GPIOE, GPIO_PIN_4)==0){HAL_Delay(10); //消抖if(HAL_GPIO_ReadPin(GPIOE, GPIO_PIN_4)==0){return 2;}}if(HAL_GPIO_ReadPin(GPIOE, GPIO_PIN_3)==0){HAL_Delay(10); //消抖if(HAL_GPIO_ReadPin(GPIOE, GPIO_PIN_3)==0){return 1;}}return 0;}游戏运行判定代码running：
if (failed == 1){OLED_DrawRestart();key_num = get_key_val();if (key_num == 2){if(score > highest_score) highest_score = score;score = 0;failed = 0;height = 0;reset = 1;OLED_DrawDinoJump(reset);OLED_DrawCactusRandom(cactus_category, reset);OLED_Clear();}continue;}score ++;if (height <= 0) key_num = get_key_val();OLED_DrawGround();OLED_DrawCloud();if (height>0 || key_num == 1) height = OLED_DrawDinoJump(reset);else OLED_DrawDino();cactus_pos = OLED_DrawCactusRandom(cactus_category, reset);if(cactus_category == 0) cactus_length = 8;else if(cactus_category == 1) cactus_length = 16;else cactus_length = 24;if (cactus_pos + cactus_length < 0){ cactus_category = rand()%4;OLED_DrawCactusRandom(cactus_category, 1);}if ((height < 16) && ( (cactus_pos>=16 && cactus_pos <=32) || (cactus_pos + cactus_length>=16 && cactus_pos + cactus_length <=32))){failed = 1;}OLED_ShowString(35, 0, "HI:", 12);OLED_ShowNum(58, 0, highest_score, 5, 12);OLED_ShowNum(98, 0, score, 5, 12);reset = 0;cur_speed = score/20;if (cur_speed > 29) cur_speed = 29;HAL_Delay(30 - cur_speed);//HAL_Delay(500);key_num = 0; /* USER CODE BEGIN 3 */ }这里简单给大家说明一下，代码原理：根据按键的读取的数值去控制小恐龙的运动状态，同时，屏幕上不断移动和随机生成仙人掌障碍物，得分随着游戏进行增加。花一点时间去读一下程序，还是很好理解的。（为了复现出原版谷歌小恐龙随时间增加，速度越来越快的特性，这里根据用户得分情况，使用减小延迟函数时间去加快游戏速度提高难度）
六、游戏效果谷歌小恐龙（Chrome Dino Game）
笔者是一只手拍摄，一只手玩这个游戏，再加上KEY按键靠得太近，按得不方便，所以反复GG。（小声：好吧，笔者太菜！）实在话，感觉小恐龙跑得太快的话，可以把得分延迟函数基础数值加大一点。
代码开源链接：https://pan.baidu.com/s/1RHHZ8P3axWi5HQR8MHhagw 提取码：b7uy
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