//imports the SPI library (needed to communicate with Gamebuino's screen) #include <SPI.h> //importe the Gamebuino library #include <Gamebuino.h> //creates a Gamebuino object named gb Gamebuino gb;
//declare all the variables needed for the game : int img_x = LCDWIDTH/2; //set the horizontal position to the middle of the screen int img_y = LCDHEIGHT/2; //vertical position int img_vx = 1; //horizontal velocity int img_vy = 1; //vertical velocity int img_size = 7; //the size of the image in number of pixels uint8_t rotate = NOROT; boolean move = true;
// the setup routine runs once when Gamebuino starts up void setup(){ // initialize the Gamebuino object gb.begin(); // show the start menu gb.titleScreen(F("Controls")); }
// the loop routine runs over and over again forever void loop(){ //updates the gamebuino (the display, the sound, the auto backlight... everything) //returns true when it's time to render a new frame (20 times/second) if(gb.update()){
//move the image using the buttons if(gb.buttons.repeat(BTN_RIGHT,2)){ //every 2 frames when the right button is held down if (move) { rotate = ROTCW; img_x = img_x + img_vx; } //gb.sound.playTick(); //play a preset "tick" sound every time the button is pressed } if(gb.buttons.repeat(BTN_LEFT,2)){ if (move) { rotate = ROTCCW; img_x = img_x - img_vx; } //gb.sound.playTick(); } if(gb.buttons.repeat(BTN_DOWN,2)){ if (move) { rotate = ROT180; img_y = img_y + img_vy; //gb.sound.playTick(); } } if(gb.buttons.repeat(BTN_UP,2)){ if (move) { rotate = NOROT; img_y = img_y - img_vy; } //gb.sound.playTick(); }
if ((gb.buttons.repeat(BTN_UP,2) && gb.buttons.repeat(BTN_DOWN,2)) || (gb.buttons.repeat(BTN_UP,2) && gb.buttons.repeat(BTN_LEFT,2)) || (gb.buttons.repeat(BTN_UP,2) && gb.buttons.repeat(BTN_RIGHT,2)) || (gb.buttons.repeat(BTN_RIGHT,2) && gb.buttons.repeat(BTN_DOWN,2)) || (gb.buttons.repeat(BTN_RIGHT,2) && gb.buttons.repeat(BTN_LEFT,2)) || (gb.buttons.repeat(BTN_DOWN,2) && gb.buttons.repeat(BTN_LEFT,2))) { move = false; } else { move = true; } //bonus : play a preset sound when A and B are pressed if(gb.buttons.pressed(BTN_A)){ gb.sound.playOK(); } if(gb.buttons.pressed(BTN_B)){ gb.sound.playCancel(); } if(gb.buttons.pressed(BTN_C)){ gb.titleScreen(F("Controls")); }
//check that the image is not going out of the screen //if the image is touching the left side of the screen if(img_x < 0){ //bring it back in the screen img_x = 0; } //if the image is touching the right CCWside if((img_x + img_size) > LCDWIDTH){ img_x = LCDWIDTH - img_size; } //if the image is touching the top side if(img_y < 0){ img_y = 0; } //if the image is touching the down side if((img_y + img_size) > LCDHEIGHT){ img_y = LCDHEIGHT - img_size; }
//draw the image on the screenBTN_UP gb.display.drawBitmap(img_x, img_y, tank1,rotate,NOFLIP); } }
I have till now made a basic program where I move the bitmap across the screen. However when I press either of the 4 movement buttons at once the tank moves diagonally which I dont want. But I can't create a code which detects if two keys are pressed and/or held.
//imports the SPI library (needed to communicate with Gamebuino's screen) #include <SPI.h> //importe the Gamebuino library #include <Gamebuino.h> //creates a Gamebuino object named gb Gamebuino gb;
//declare all the variables needed for the game : int img_x = LCDWIDTH/2; //set the horizontal position to the middle of the screen int img_y = LCDHEIGHT/2; //vertical position int img_vx = 1; //horizontal velocity int img_vy = 1; //vertical velocity int img_size = 7; //the size of the image in number of pixels uint8_t rotate = NOROT; int move = true;
// the setup routine runs once when Gamebuino starts up void setup(){ // initialize the Gamebuino object gb.begin(); // show the start menu gb.titleScreen(F("Controls")); }
// the loop routine runs over and over again forever void loop(){ //updates the gamebuino (the display, the sound, the auto backlight... everything) //returns true when it's time to render a new frame (20 times/second) if(gb.update()){
//move the image using the buttons if((gb.buttons.repeat(BTN_RIGHT,2)) && move == true){ //every 2 frames when the right button is held down if (move) { rotate = ROTCW; img_x = img_x + img_vx; } //gb.sound.playTick(); //play a preset "tick" sound every time the button is pressed } if(gb.buttons.repeat(BTN_LEFT,2)){ if (move) { rotate = ROTCCW; img_x = img_x - img_vx; } //gb.sound.playTick(); } if(gb.buttons.repeat(BTN_DOWN,2)){ if (move) { rotate = ROT180; img_y = img_y + img_vy; //gb.sound.playTick(); } } if(gb.buttons.repeat(BTN_UP,2)){ if (move) { rotate = NOROT; img_y = img_y - img_vy; } //gb.sound.playTick(); }
///////////////////////CHANGED VALUES HERE TO A 1///////////////////// if ((gb.buttons.repeat(BTN_UP,1) && gb.buttons.repeat(BTN_DOWN,1)) || (gb.buttons.repeat(BTN_UP,1) && gb.buttons.repeat(BTN_LEFT,1)) || (gb.buttons.repeat(BTN_UP,1) && gb.buttons.repeat(BTN_RIGHT,1)) || (gb.buttons.repeat(BTN_RIGHT,1) && gb.buttons.repeat(BTN_DOWN,1)) || (gb.buttons.repeat(BTN_RIGHT,1) && gb.buttons.repeat(BTN_LEFT,1)) || (gb.buttons.repeat(BTN_DOWN,1) && gb.buttons.repeat(BTN_LEFT,1))) { move = false; } ///////////////////////CHANGED VALUES HERE TO A 1///////////////////// else { move = true; }
//bonus : play a preset sound when A and B are pressed if(gb.buttons.pressed(BTN_A)){ gb.sound.playOK(); } if(gb.buttons.pressed(BTN_B)){ gb.sound.playCancel(); } if(gb.buttons.pressed(BTN_C)){ gb.titleScreen(F("Controls")); }
//check that the image is not going out of the screen //if the image is touching the left side of the screen if(img_x < 0){ //bring it back in the screen img_x = 0; } //if the image is touching the right CCWside if((img_x + img_size) > LCDWIDTH){ img_x = LCDWIDTH - img_size; } //if the image is touching the top side if(img_y < 0){ img_y = 0; } //if the image is touching the down side if((img_y + img_size) > LCDHEIGHT){ img_y = LCDHEIGHT - img_size; }
//draw the image on the screenBTN_UP gb.display.drawBitmap(img_x, img_y, tank1,rotate,NOFLIP); } }
i changed your boolean move = true;
to an int move = true;
then i changed your button values to a 1 as seen in the code above, this seems to work for me in your tank game
test1.zip
