/* * In this lesson, you'll add a points counter which keeps track of how many * consecutive successful jumps have been made. */ #include "MakerScreenXVI.h" MakerScreenXVI lcd; byte run0[8] = {//legs in partial stride 0b00000, 0b01100, 0b01100, 0b01100, 0b01110, 0b01100, 0b01010, 0b01010 }; byte run1[8] = { //legs in full stride 0b00000, 0b01100, 0b01100, 0b01111, 0b01100, 0b01100, 0b01010, 0b10001 }; byte wall[8] = {//wall obstacle 0b11111, 0b10101, 0b11111, 0b10001, 0b11111, 0b10101, 0b11111, 0b10001 }; byte crash[8] = { //crashed JumpMan 0b00000, 0b00011, 0b01011, 0b00111, 0b00011, 0b00011, 0b00001, 0b00001 }; int position = 0; //holds the changing position of the cursor bool runState = 0; //which running animation to draw (0 or 1). int jumpState = 0; //0 ='pre-jump', 1 ='mid jump', 2='post jump' bool buttonState = 0; //will equal 1 after press, 0 after jump completed int wallPosition = 14; //wall can be placed from 0 to 15 /* * Create a variable to hold the number of points scored, which is the number * of consecutive jumps made without running into the wall. */ int points = 0; //jumps without hitting a wall long animationTimer; //tracks animation (custom character) updates long runTimer; //tracks position updates void setup() { lcd.begin(); lcd.backlightOn(); lcd.createChar(0, run0); //partial stride character lcd.createChar(1, run1); //full stride character lcd.createChar(2, wall); //wall character in 'slot' 2 of custom characters lcd.createChar(3, crash); //splatted character against the wall pinMode(6,INPUT_PULLUP); //button to trigger jump //Start both timers equal to millis() so that the difference between //millis and the variables is 0. animationTimer = millis(); runTimer = millis(); } void loop() { /* * Before drawing JumpMan or the wall, write the * current point total at the top left of the screen. Write it * first so that if the man jumps up into where the total is * put, he will be written over top of it. */ lcd.setCursor(0,0); //upper left of the screen lcd.print("Pt: "); lcd.print(points); //Set the cursor depending on the state of the character if (jumpState == 0){ lcd.setCursor(position,1); } else if (jumpState == 1){ lcd.setCursor(position,0); } else if (jumpState == 2){ lcd.setCursor(position,1); } lcd.write(runState); //draw the run0 or run1 animation lcd.setCursor(wallPosition,1); lcd.write(2); //draw wall if ((digitalRead(6) == LOW)&&(jumpState == 0)){ buttonState = 1; //1 means a press is recorded } //Button is unpressed and a jump has been completed if ((digitalRead(6) == HIGH)&&(jumpState == 2)){ jumpState = 0; } if (millis() - animationTimer > 300){//Update animation every 300 ms runState = 1 - runState; //draw the next JumpMan animation animationTimer = millis(); lcd.clear(); //clear the LCD to draw a new character } if (millis() - runTimer > 600){ //Every 600 milliseconds, run this... position = position + 1; //move character one space to the right if (position == 16){ wallPosition = random(3,16); //place wall in column 3 through 15 position = 0; } //if button has been pressed and a jump hasn't been initiated... if ((buttonState == 1)&&(jumpState == 0)){ jumpState = 1; //signal a jump buttonState = 0; //reset button to 'unpressed' in the code } else if (jumpState == 1){//true if jumpState set to one in the last loop jumpState = 2; //jump is marked as complete } if ((position == wallPosition)&&(jumpState != 1)){//check for a crash points = 0; //remove all points if you crash drawCrash(); } //If you've reached the wallPosition and haven't crashed, you must have //survived the leap. Add a point else if (position == wallPosition){ points = points + 1; } lcd.clear(); runTimer = millis(); } } void drawCrash(){ lcd.clear(); lcd.setCursor(position-1,1); //move cursor one position left of the collision lcd.write(3);//draw 'splatted' JumpMan lcd.setCursor(wallPosition,1); lcd.write(2); //draw the wall delay(1000); // Reset the variables to put the JumpMan back at the starting point position = 0; buttonState = 0; jumpState = 0; } /* * Since you've written good, flexible code, adding in a points counter was * fairly simple. All you had to do was find the right place where * the state of the program signaled a completed jump. * * It was also simple to add in the display of the counter. The only * clever part was making sure the counter was put in before the * character, so that the character would be drawn on top, if they * ended up in the same position on the screen. */ //(c) 2017 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense