Sean Nagle / Mbed 2 deprecated Assignment5

Assignment 5 for OCE360, timers, tickers, and interrupts.

Dependencies:   4DGL-uLCD-SE MMA8452Q SDFileSystem bouncing_ball mbed

Fork of OCE360_4 by OCE_360

main.cpp@5:93f88deda5ba, 2017-11-07 (annotated)

Committer:
rsean10
Date:
Tue Nov 07 15:24:31 2017 +0000
Revision:
5:93f88deda5ba
Parent:
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Child:
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// A solution to OCE360 Homework #4.





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// Objective: Use object oriented programming to create a system that displays





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// multiple balls bouncing around the LCD screen.





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// Stephen Licht, 11/7/2017





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#include "mbed.h"





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#include "MMA8452Q.h"           //acceleromater library





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#include "uLCD_4DGL.h"          //LCD library





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#include "bouncing_ball.h"      //new ball phyics library





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#define UPDATE_TIME_S 0.02





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#define START_X_1 10





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#define START_Y_1 10





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#define START_X_2 20





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#define START_Y_2 20





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#define RADIUS_1 6





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#define RADIUS_2 3





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#define DEBUG_MODE 0





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#define LOG_UPDATE .091         //11 Hz





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//Initialize Serial communication





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Serial pc(USBTX, USBRX);





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//Function prototype for color selection function:





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int get_LCD_color(int color_integer);





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// Graphic LCD - TX, RX, and RES pins





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uLCD_4DGL uLCD(p9,p10,p11);     //initialize a driver object for an LCD connected on pins 9-11





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// Accelerometer - SDA, SCL, and I2C address





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MMA8452Q accel(p28, p27, 0x1D);  //initialize a driver object for an accelerometer connected on pins 27-28.





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physics_ball ball1;  //initialize two balls for bouncing





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physics_ball ball2;  //the default states from the library will be used initially





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//Ticker for logging





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Ticker logger1;





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Ticker logger2;





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void pos_log1(){





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    pc.printf("Ball 1 (x): %i     Ball 1 (y): %i     \n\r",ball1.posx,ball1.posy);





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    }





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void pos_log2(){





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    pc.printf("Ball 2 (x): %i     Ball 2 (y): %i     \n\r",ball2.posx,ball2.posy);





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    }





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int main(){





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    /*





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    logger1.attach(&pos_log1, LOG_UPDATE);





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    logger2.attach(&pos_log2, LOG_UPDATE);





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    */





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    // Initialize uLCD





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    uLCD.baudrate(115200);





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    uLCD.background_color(BLACK);





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    uLCD.cls();





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    // Initialize accelerometer





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    accel.init();





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    //Initialize balls:





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    ball1.set_state(START_X_1,START_Y_1,0,0); //speeds are set to zero





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    ball1.set_state(START_X_2,START_Y_2,0,0);





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    //Set ball radius and color:





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    ball1.set_param(RADIUS_1,0); //color is unimportant





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    ball2.set_param(RADIUS_2,1); //just making sure the colors are different





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    /* Make the balls "fall" in direction of accelerometer by forcing the ball objects





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     to update themselves at regular intervals, and te drawing the locations reported





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     by the ball objects on the LCD screen: */





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    while (1) {  //execute 'forever'





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        // Draw circles in the x and y positions stored by the ball objects:





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        uLCD.filled_circle(ball1.posx, ball1.posy, ball1.radius, get_LCD_color(ball1.color));





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        uLCD.filled_circle(ball2.posx, ball2.posy, ball2.radius, get_LCD_color(ball2.color));





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        // Wait before erasing old circles:





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        wait(UPDATE_TIME_S);         // In seconds





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        // Erase old circles by writing over there locations using the screen color:





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        uLCD.filled_circle(ball1.posx, ball1.posy, ball1.radius, BLACK);





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        uLCD.filled_circle(ball2.posx, ball2.posy, ball2.radius, BLACK);





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        // Force the objects 'ball1' and 'ball2' to update their stored positions





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        // and velocities:





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        ball1.update(UPDATE_TIME_S,accel);





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        ball2.update(UPDATE_TIME_S,accel);





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        if (DEBUG_MODE) {





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            //If compiled with DEBUG_MODE flag raised, print values to screen.





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            uLCD.locate(0,4);





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            uLCD.printf("X: %d.1\nY: %.1d",ball1.posx,ball1.posy);





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            uLCD.locate(0,6);





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            uLCD.printf("VX: %f.1\nVY: %.1f",ball1.speedx,ball1.speedy);





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            uLCD.locate(0,10);





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            uLCD.printf("AX: %f.1\nAY: %.1f\nAZ: %0.1f",accel.readX(),accel.readY(),accel.readZ());





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        }





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    }





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}





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//Interpret LCD colors.





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int get_LCD_color(int color_integer)





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{





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    switch (color_integer) {





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        case 0:





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            return(RED);





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        case 1:





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            return(BLUE);





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        case 2:





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            return(GREEN);





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        default:





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            return(WHITE);





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    }





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}