Vizic Technologies
SMARTGPU pong game application demo with touch
Diff: main.cpp
- Revision:
- 0:5c4b23e9b6b5
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Sep 14 05:36:30 2011 +0000
@@ -0,0 +1,201 @@
+/**************************************************************************************/
+/*SMARTGPU intelligent embedded graphics processor unit
+ those examples are for use the SMARTGPU with the mbed microcontoller, just connect tx,rx,and reset
+ Board:
+ http://www.vizictechnologies.com/#/desarrollo/4554296549
+
+ www.vizictechnologies.com
+ Vizic Technologies copyright 2011 */
+/**************************************************************************************/
+/**************************************************************************************/
+
+#include "mbed.h"
+#include "SMARTGPU.h"
+
+// defines for balls
+#define radiusBall1 15 //ball1 size
+#define colourBall1 GREEN //ball1 colour
+#define radiusBall2 8 //ball2 size
+#define colourBall2 YELLOW //ball2 colour
+
+SMARTGPU lcd(p13,p14,p15); //(TX,RX,Reset);
+
+//Each time we use the touchscreen we must define a int array that stores the X and Y readed or touched coordinates.
+int touch[2];
+//Each time we use the touchicon we must define a char array that stores the name of the touched icon.
+char icon[3];
+
+//variables used by move ball methods
+int speedBall1=2; //ball1 moving speed - amount of pixels that ball move each time
+int speedBall2=3; //ball2 moving speed - amount of pixels that ball move each time
+int dirx1=1; //xball1 initial positive direction
+int diry1=1; //yball1 initial positive direction
+int xBall1=300; //x initial position of ball1
+int yBall1; //y position of ball1
+int dirx2=-1; //xball2 initial negative direction
+int diry2=1; //yball2 initial positive direction
+int xBall2=30; //x initial position of ball2
+int yBall2; //y position of ball2
+
+//variables used by Pong method
+char score[7]={0,0,' ','P','T','S',0x00}; //array to save score
+char points;
+char gameOver; //game over flag
+char speedCounter; //Counter that saves the speed
+char ball1Active; //acrive ball flag
+char ball2Active; //active ball flag
+int barSize = 60; //size of bar in pixels
+int bar=50; //initial x position of the bar
+int barCenter = (barSize/2)+bar; //we need to know the center of the bar
+
+
+/***************************************************/
+//function that move or update the actual position of the ball1
+void moveBall1(){
+ lcd.drawCircle(xBall1,yBall1,radiusBall1,BLACK,UNFILL); // Erase previous ball position
+ xBall1+=(dirx1*speedBall1); // Calculate new x coordinate for ball1
+ yBall1+=(diry1*speedBall1); // Calculate new y coordinate for ball1
+ lcd.drawCircle(xBall1,yBall1,radiusBall1,colourBall1,UNFILL); // Draw new ball position
+ if((xBall1+speedBall1+radiusBall1)>318 | (xBall1-speedBall1-radiusBall1)<=1){ // if ball reaches the left or right corner, we invert moving direction
+ dirx1= dirx1*(-1);
+ }
+ if((yBall1+speedBall1+radiusBall1)>233 | (yBall1-speedBall1-radiusBall1)<=21){ // if ball reaches the top or bottom corner, we invert moving direction
+ if((yBall1-speedBall1-radiusBall1)<=21){ // Bounce on top, only invert moving direction
+ diry1= diry1*(-1); // We invert the moving direction by multiplying by -1
+ }else{ // Bounce on bottom, check if inside the bar
+ if((xBall1+speedBall1+radiusBall1)>bar & (xBall1-speedBall1-radiusBall1)<(bar+barSize)){ //if bounce inside the bar
+ diry1= diry1*(-1); // We invert the moving direction by multiplying by -1
+ points++; // Increase player current points
+ speedCounter++; // Increase the speed counter
+ if(speedCounter>9){ // If we reach 10 counts we increase the ball1 bouncing speed
+ speedBall1++;
+ speedCounter=0; // Reset the counter
+ }
+ }else{ // Bounce outside the bar
+ ball1Active=0; // Clear ball1 active flag
+ lcd.drawCircle(xBall1,yBall1,radiusBall1,BLACK,UNFILL);// Delete this ball because bounce outside of the bar
+ if(ball1Active==0 & ball2Active==0){ // if we have lost both balls
+ gameOver=1; // Set game over flag
+ }
+ }
+ }
+ }
+}
+
+/***************************************************/
+//function that move or update the actual position of the ball2
+void moveBall2(){
+ lcd.drawCircle(xBall2,yBall2,radiusBall2,BLACK,FILL); // Erase previous ball position
+ xBall2+=(dirx2*speedBall2); // Calculate new x coordinate for ball2
+ yBall2+=(diry2*speedBall2); // Calculate new y coordinate for ball2
+ lcd.drawCircle(xBall2,yBall2,radiusBall2,colourBall2,FILL); // Draw new ball position
+ if((xBall2+speedBall2+radiusBall2)>318 | (xBall2-speedBall2-radiusBall2)<=1){ // if ball reaches the left or right corner, we invert moving direction
+ dirx2= dirx2*(-1);
+ }
+ if((yBall2+speedBall2+radiusBall2)>233 | (yBall2-speedBall2-radiusBall2)<=21){ // if ball reaches the top or bottom corner, we invert moving direction
+ if((yBall2-speedBall2-radiusBall2)<=21){ // Bounce on top, only invert moving direction
+ diry2= diry2*(-1);
+ }else{ // Bounce on bottom, check if inside the bar
+ if((xBall2+speedBall2+radiusBall2)>bar & (xBall2-speedBall2-radiusBall2)<(bar+barSize)){ //if bounce inside the bar
+ diry2= diry2*(-1); // We invert the moving direction by multiplying by -1
+ points++; // Increase player current points
+ speedCounter++; // Increase the speed counter
+ if(speedCounter>9){ // If we reach 10 counts we increase the ball1 bouncing speed
+ speedBall2++;
+ speedCounter=0; // Reset the counter
+ }
+ }else{ // Bounce outside the bar
+ ball2Active=0; // Clear ball1 active flag
+ lcd.drawCircle(xBall2,yBall2,radiusBall2,BLACK,FILL); // Delete this ball because bounce outside of the bar
+ if(ball1Active==0 & ball2Active==0){ // if we have lost both balls
+ gameOver=1; // Set game over flag
+ }
+ }
+ }
+ }
+}
+
+/***************************************************/
+/***************************************************/
+//The game methodology
+void pong(){
+ unsigned char i;
+ char score[7]={0,0,' ','P','T','S',0x00};
+ char buffer[3];
+
+ //reset all parameters
+ gameOver=0; //reset flag
+ points=0; //reset points
+ speedCounter=0; //reset speed
+ ball1Active=1; //acrive ball flag
+ ball2Active=1; //active ball flag
+ yBall1=25+radiusBall1; //y initial position of ball1
+ yBall2=25+radiusBall2; //y initial position of ball2
+
+ lcd.drawRectangle(0,20,319,239,MAGENTA,UNFILL); //draw corners
+ lcd.drawLine(bar,234,bar+barSize,234,WHITE); //draw Bar
+
+ while(gameOver==0){ //while game over flag is zero
+ buffer[0]=(points/10)+0x30, buffer[1]=(points%10)+0x30, buffer[2]=0; //fill buffer that counts
+ lcd.string(2,2,30,35,RED,FONT3,COLOUR,buffer); //display current points
+ for(i=0;i<5;i++){ //check 5 times if the player touches the screen
+ if(lcd.touchScreen(touch)){ //if we receive a touch then we move the bar to touched side
+ lcd.drawLine(bar,234,bar+barSize,234,BLACK); //erase previous Bar
+ if(touch[XCOORD]>barCenter){ //if we need to move the bar to the right
+ bar+=8; //move the bar to the right 8 pixels
+ if((bar+barSize)>318){ //if the bar reach the right corner
+ bar=318-barSize;
+ }
+ barCenter=bar+(barSize/2); //set new center position of the bar
+ }else{ //move the bar to the left
+ bar-=8; //move the bar to the left 8 pixels
+ if(bar<1){ //if the bar reach the left corner
+ bar=1;
+ }
+ barCenter=bar+(barSize/2); //set new center position of the bar
+ }
+ lcd.drawLine(bar,234,bar+barSize,234,WHITE); //draw the new bar at the new position
+ }
+ }
+ //we update the balls
+ if(ball1Active){ //if we haven't lost the ball1
+ moveBall1();
+ }
+ if(ball2Active){ //if we haven't lost the ball2
+ moveBall2();
+ }
+ }
+ //game over - proceed to show final score
+ lcd.string(90,90,272,140,RED,FONT5,TRANS,"Game Over\0");
+ score[0]=(points/10)+0x30; //convert points to ascii format and store them on the score buffer
+ score[1]=(points%10)+0x30; //convert points to ascii format and store them on the score buffer
+ lcd.string(115,120,272,140,YELLOW,FONT5,TRANS,score);
+ lcd.string(110,150,250,180,GREEN,FONT3,TRANS,"Touch to Exit\0");
+ wait_ms(1000);
+ while(lcd.touchScreen(touch)==0); //wait for a touch to exit
+ lcd.erase(); //erase the screen and exit function
+}
+
+
+/***************************************************/
+int main() {
+ lcd.reset(); //physically reset SMARTGPU
+ lcd.start(); //initialize the SMARTGPU processor
+
+ lcd.baudChange(2000000); //set a fast baud!, always that we use touch functions is recommended to use fast baud rates
+
+ while(1){ // Loop forever
+ //Draw a cover
+ lcd.drawTriangle(20,20,70,40,40,80,YELLOW,FILL);
+ lcd.drawRectangle(250,30,300,80,MAGENTA,FILL);
+ lcd.drawCircle(50,190,28,CYAN,FILL);
+ lcd.drawTriangle(270,230,240,190,300,170,RED,FILL);
+ lcd.string(125,70,319,239,WHITE,FONT7,TRANS,"PONG");
+ lcd.string(35,130,310,220,GREEN,FONT4,TRANS,"Touch screen to begin");
+ wait_ms(1000);
+ while(lcd.touchScreen(touch)==0); //wait for a touch to begin
+ lcd.erase();
+ //start the game
+ pong(); // Play until game over
+ }
+}
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