ESP32-HUB75-MatrixPanel-DMA/examples/BouncingSquares/BouncingSquares.ino
2021-08-19 23:13:16 +01:00

77 lines
2.4 KiB
C++

#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
MatrixPanel_I2S_DMA *display = nullptr;
uint16_t myDARK = display->color565(64, 64, 64);
uint16_t myWHITE = display->color565(192, 192, 192);
uint16_t myRED = display->color565(255, 0, 0);
uint16_t myGREEN = display->color565(0, 255, 0);
uint16_t myBLUE = display->color565(0, 0, 255);
uint16_t colours[5] = { myDARK, myWHITE, myRED, myGREEN, myBLUE};
struct Square
{
float xpos, ypos;
float velocityx;
float velocityy;
boolean xdir, ydir;
uint16_t square_size;
uint16_t colour;
};
const int numSquares = 25;
Square Squares[numSquares];
void setup()
{
// put your setup code here, to run once:
delay(1000);
Serial.begin(115200);
delay(200);
Serial.println("...Starting Display");
HUB75_I2S_CFG mxconfig;
//mxconfig.double_buff = true; // Turn of double buffer
mxconfig.clkphase = false;
// OK, now we can create our matrix object
display = new MatrixPanel_I2S_DMA(mxconfig);
display->begin(); // setup display with pins as pre-defined in the library
// Create some Squares
for (int i = 0; i < numSquares; i++)
{
Squares[i].xpos = random(0, display->width());
Squares[i].ypos = random(0, display->height());
Squares[i].velocityx = static_cast <float> (rand()) / static_cast <float> (RAND_MAX);
Squares[i].velocityy = static_cast <float> (rand()) / static_cast <float> (RAND_MAX);
//Squares[i].xdir = (random(2) == 1) ? true:false;
//Squares[i].ydir = (random(2) == 1) ? true:false;
Squares[i].square_size = random(2,10);
int random_num = random(6);
Squares[i].colour = colours[random_num];
}
}
void loop()
{
display->flipDMABuffer(); // not used if double buffering isn't enabled
delay(25);
display->clearScreen();
for (int i = 0; i < numSquares; i++)
{
// Draw rect and then calculatae
display->fillRect(Squares[i].xpos, Squares[i].ypos, Squares[i].square_size, Squares[i].square_size, Squares[i].colour);
if (Squares[i].xpos >= display->width()) { Squares[i].velocityx *= -1; } else if (Squares[i].xpos <= 0) { Squares[i].velocityx = abs (Squares[i].velocityx); }
if (Squares[i].ypos >= display->height()) { Squares[i].velocityy *= -1; } else if (Squares[i].ypos <= 0) { Squares[i].velocityy = abs (Squares[i].velocityy); }
Squares[i].xpos += Squares[i].velocityx ;
Squares[i].ypos += Squares[i].velocityy ;
}
}