Maxint R&D
Balls & Paddle game for RETRO Pong inspired game featuring multi-directional tilt-sensitive paddle, multiple balls, shrinking ceiling and a bit of gravity.
Dependencies: LCD_ST7735 MusicEngine RETRO_BallsAndThings mbed
Balls and Paddle
After doing some work on the Pong mod I decided to put my efforts into making my version object oriented and try to make a generic object-library that could be use for other ball-and-things games. To add some challenges to the gameplay, the following features were added:
- extra-free additional balls to please the juglers
- gravity for pulling the ball down to create some dynamic movement
- directional power-paddle that counters the ball with a bit more speed
- lowering ceiling to make endless gameplay impossible
Revision 1:bf46edcd6b4f, committed 2015-02-09
- Comitter:
- maxint
- Date:
- Mon Feb 09 08:34:32 2015 +0000
- Parent:
- 0:7e989d0083ff
- Child:
- 2:0caa0607f7bf
- Commit message:
- Some more clean-up and commenting
Changed in this revision
--- a/Game.cpp Fri Feb 06 10:18:41 2015 +0000
+++ b/Game.cpp Mon Feb 09 08:34:32 2015 +0000
@@ -1,11 +1,10 @@
#include "Game.h"
-const char* Game::LOSE_1 = "Game over.";
-const char* Game::LOSE_2 = "Press ship to restart.";
+const char* Game::LOSE_1 = "Game over";
+const char* Game::LOSE_2 = "Press ship to restart";
const char* Game::SPLASH_1 = "-*- Balls and paddle -*-";
-const char* Game::SPLASH_2 = "Press ship to start.";
-const char* Game::SPLASH_3 = "Made by Maxint";
-
+const char* Game::SPLASH_2 = "Press ship to start";
+const char* Game::SPLASH_3 = "Made by Maxint.";
#define WHITE Color565::White
#define BLACK Color565::Black
@@ -18,7 +17,9 @@
#define HEIGHT this->disp.getHeight()
#define WIDTH this->disp.getWidth()
-
+//
+// Initialisation
+//
Game::Game() : left(P0_14, PullUp), right(P0_11, PullUp), down(P0_12, PullUp), up(P0_13, PullUp), square(P0_16, PullUp), circle(P0_1, PullUp), led1(P0_9), led2(P0_8),
ain(P0_15), i2c(P0_5, P0_4), disp(P0_19, P0_20, P0_7, P0_21, P0_22, P1_15, P0_2, LCD_ST7735::RGB), accel(this->I2C_ADDR, &disp), vGravity(0, 0.1), ball(&disp), paddle(&disp)
@@ -42,14 +43,6 @@
this->snd.reset();
}
-void Game::printDouble(double value, int x, int y)
-{
- char buffer[10];
- int len = sprintf(buffer, "%.1f ", value);
-
- this->disp.drawString(font_oem, x, y, buffer);
-}
-
void Game::initialize()
{
this->disp.clearScreen();
@@ -67,6 +60,53 @@
}
+//
+// Generic methods
+//
+
+void Game::printDouble(double value, int x, int y)
+{
+ char buffer[10];
+ int len = sprintf(buffer, "%.1f ", value);
+
+ this->disp.drawString(font_oem, x, y, buffer);
+}
+
+void Game::drawString(const char* str, int y)
+{
+ uint8_t width;
+ uint8_t height;
+
+ this->disp.measureString(font_oem, str, width, height);
+ this->disp.drawString(font_oem, WIDTH / 2 - width / 2, y, str);
+
+}
+
+void Game::printf(int x, int y, const char *szFormat, ...)
+{
+ char szBuffer[256];
+ va_list args;
+
+ va_start(args, szFormat);
+ vsprintf(szBuffer, szFormat, args);
+ va_end(args);
+ this->disp.drawString(font_oem, x, y, szBuffer);
+}
+
+int Game::checkTiltLeftRight()
+{ // check current X-tilting for left-right input (left=-1, right=1)
+ double x, y, z;
+ this->accel.getXYZ(x, y, z);
+ if(x<-0.1) return(-1);
+ else if(x>0.1) return(1);
+ else return(0);
+}
+
+
+//
+// Paddle
+//
+
void Game::initializePaddle()
{
this->paddle.initialize(WIDTH / 2 - Game::PADDLE_WIDTH/2, HEIGHT - Game::PADDLE_HEIGHT, Game::PADDLE_WIDTH, Game::PADDLE_HEIGHT);
@@ -81,7 +121,7 @@
else if (!this->right.read())
this->paddle.move(Vector(Game::PADDLE_SPEED, 0));
else
- {
+ { // move the paddle by tilting the board left or right
int i=this->checkTilt();
if(i>0)
this->paddle.move(Vector(Game::PADDLE_SPEED, 0));
@@ -98,6 +138,18 @@
this->fDrawPaddle=false;
}
+void Game::checkPaddle()
+{
+ Rectangle rScreen=Rectangle(0,0, WIDTH, HEIGHT); // screen boundary
+
+ this->paddle.checkBoundary(rScreen);
+}
+
+
+//
+// Balls
+//
+
void Game::setNoBalls()
{ // make sure no balls are active
for(int i=0; i<NUM_BALLS; i++)
@@ -162,122 +214,30 @@
return(nResult);
}
-
-
-
-
-void Game::tick()
-{
- this->checkButtons();
-
- if (this->mode) {
-
- this->updateBalls(); // update the ball positions
- this->updatePaddle();
-
- this->checkPaddle();
- this->checkBallsCollision();
-
- this->redrawBalls();
- this->redrawPaddle();
- this->redrawTopWall();
-
- //this->checkScore();
- this->checkBalls();
-
- wait_ms(this->nGameTickDelay); // can be adjusted using up/down
- }
- else {
- this->accel.updateGraph();
- wait_ms(100);
- }
-}
+void Game::checkNumBalls()
+{
+ if (this->nBalls == 0)
+ { // game over
+ char buf[256];
+ this->disp.clearScreen();
-int Game::checkTilt()
-{ // move the paddle by tilting the board left or righr
- double x, y, z;
- this->accel.getXYZ(x, y, z);
- if(x<-0.1) return(-1);
- else if(x>0.1) return(1);
- else return(0);
-}
-
-void Game::checkButtons()
-{
- if(!this->square.read()) // note: button.read() is false (LOW/0) when pressed
- {
- wait_ms(250); // el-cheapo deboounce
- this->mode = !this->mode;
+ this->drawString(Game::LOSE_1, HEIGHT / 2 - CHAR_HEIGHT);
+ this->drawString(Game::LOSE_2, HEIGHT / 2);
+ sprintf(buf,"Your score: %d ", this->nScore);
+ this->drawString(buf, HEIGHT / 2 + CHAR_HEIGHT / 2 + CHAR_HEIGHT );
- this->disp.clearScreen();
-
- if (!this->mode)
- {
- this->accel.resetGraph();
- }
-
- this->led1.write(this->mode);
- this->led2.write(!this->mode);
- }
- else if(!this->circle.read() && this->mode) // note: button.read() is false (LOW/0) when pressed
- {
- bool fMute=this->snd.getMute();
- fMute=!fMute;
- this->snd.setMute(fMute);
- this->led2.write(fMute);
+ this->snd.play("T120 O3 L4 R4 F C F2 C");
+ while (this->circle.read())
+ wait_ms(1);
wait_ms(250); // el-cheapo deboounce
+ this->initialize();
}
else
- {
- bool isUp = !this->up.read();
- bool isDown = !this->down.read();
-
- if (isUp && isDown) goto end;
- if (!isUp && !isDown) goto end;
-
- if (isUp && this->lastUp) goto end;
- if (isDown && this->lastDown) goto end;
-
- if (isUp)
- {
- if(this->nGameTickDelay<1000) this->nGameTickDelay=(float)this->nGameTickDelay*1.20;
- this->printf(100, 0, "Speed: %d ", this->nGameTickDelay);
- }
- else if (isDown)
- {
- if(this->nGameTickDelay>5) this->nGameTickDelay=(float)this->nGameTickDelay/1.20;
- this->printf(100, 0, "Speed: %d ", this->nGameTickDelay);
- }
-
-end:
- this->lastUp = isUp;
- this->lastDown = isDown;
+ {
+ this->printf(0, 0, "Balls: %d ", this->nBalls);
}
}
-void Game::drawString(const char* str, int y)
-{
- uint8_t width;
- uint8_t height;
-
- this->disp.measureString(font_oem, str, width, height);
- this->disp.drawString(font_oem, WIDTH / 2 - width / 2, y, str);
-
-}
-
-void Game::showSplashScreen()
-{
- this->drawString(Game::SPLASH_1, HEIGHT / 2 - CHAR_HEIGHT / 2);
- this->drawString(Game::SPLASH_2, HEIGHT / 2 + CHAR_HEIGHT / 2);
- this->drawString(Game::SPLASH_3, HEIGHT / 2 + CHAR_HEIGHT / 2 + 2*CHAR_HEIGHT);
-
- while (this->circle.read())
- wait_ms(1);
- wait_ms(250); // el-cheapo deboounce
-
- this->initialize(); // start a new game
-}
-
void Game::checkBallsCollision()
@@ -374,6 +334,107 @@
}
}
+
+//
+// Other gamestuff
+//
+
+void Game::tick()
+{
+ this->checkButtons();
+
+ if (this->mode) {
+
+ this->updateBalls(); // update the ball positions
+ this->updatePaddle();
+
+ this->checkPaddle();
+ this->checkBallsCollision();
+
+ this->redrawBalls();
+ this->redrawPaddle();
+ this->redrawTopWall();
+
+ //this->checkScore();
+ this->checkNumBalls();
+
+ wait_ms(this->nGameTickDelay); // can be adjusted using up/down
+ }
+ else {
+ this->accel.updateGraph();
+ wait_ms(100);
+ }
+}
+
+
+void Game::checkButtons()
+{
+ if(!this->square.read()) // note: button.read() is false (LOW/0) when pressed
+ {
+ wait_ms(250); // el-cheapo deboounce
+ this->mode = !this->mode;
+
+ this->disp.clearScreen();
+
+ if (!this->mode)
+ {
+ this->accel.resetGraph();
+ }
+
+ this->led1.write(this->mode);
+ this->led2.write(!this->mode);
+ }
+ else if(!this->circle.read() && this->mode) // note: button.read() is false (LOW/0) when pressed
+ {
+ bool fMute=this->snd.getMute();
+ fMute=!fMute;
+ this->snd.setMute(fMute);
+ this->led2.write(fMute);
+ wait_ms(250); // el-cheapo deboounce
+ }
+ else
+ {
+ bool isUp = !this->up.read();
+ bool isDown = !this->down.read();
+
+ if (isUp && isDown) goto end;
+ if (!isUp && !isDown) goto end;
+
+ if (isUp && this->lastUp) goto end;
+ if (isDown && this->lastDown) goto end;
+
+ if (isUp)
+ {
+ if(this->nGameTickDelay<1000) this->nGameTickDelay=(float)this->nGameTickDelay*1.20;
+ this->printf(100, 0, "Speed: %d ", this->nGameTickDelay);
+ }
+ else if (isDown)
+ {
+ if(this->nGameTickDelay>5) this->nGameTickDelay=(float)this->nGameTickDelay/1.20;
+ this->printf(100, 0, "Speed: %d ", this->nGameTickDelay);
+ }
+
+end:
+ this->lastUp = isUp;
+ this->lastDown = isDown;
+ }
+}
+
+
+void Game::showSplashScreen()
+{
+ this->drawString(Game::SPLASH_1, HEIGHT / 2 - CHAR_HEIGHT / 2);
+ this->drawString(Game::SPLASH_2, HEIGHT / 2 + CHAR_HEIGHT / 2);
+ this->drawString(Game::SPLASH_3, HEIGHT / 2 + CHAR_HEIGHT / 2 + 2*CHAR_HEIGHT);
+
+ while (this->circle.read())
+ wait_ms(1);
+ wait_ms(250); // el-cheapo deboounce
+
+ this->initialize(); // start a new game
+}
+
+
void Game::redrawTopWall()
{
if(this->fDrawTopWall)
@@ -384,47 +445,3 @@
this->fDrawTopWall=false;
}
}
-
-void Game::checkPaddle()
-{
- Rectangle rScreen=Rectangle(0,0, WIDTH, HEIGHT); // screen boundary
-
- this->paddle.checkBoundary(rScreen);
-}
-
-
-void Game::printf(int x, int y, const char *szFormat, ...)
-{
- char szBuffer[256];
- va_list args;
-
- va_start(args, szFormat);
- vsprintf(szBuffer, szFormat, args);
- va_end(args);
- this->disp.drawString(font_oem, x, y, szBuffer);
-}
-
-
-void Game::checkBalls()
-{
- if (this->nBalls == 0)
- { // game over
- char buf[256];
- this->disp.clearScreen();
-
- this->drawString(Game::LOSE_1, HEIGHT / 2 - CHAR_HEIGHT);
- this->drawString(Game::LOSE_2, HEIGHT / 2);
- sprintf(buf,"Your score: %d ", this->nScore);
- this->drawString(buf, HEIGHT / 2 + CHAR_HEIGHT / 2 + CHAR_HEIGHT );
-
- this->snd.play("T120 O3 L4 R4 F C F2 C");
- while (this->circle.read())
- wait_ms(1);
- wait_ms(250); // el-cheapo deboounce
- this->initialize();
- }
- else
- {
- this->printf(0, 0, "Balls: %d ", this->nBalls);
- }
-}
\ No newline at end of file
--- a/Game.h Fri Feb 06 10:18:41 2015 +0000
+++ b/Game.h Mon Feb 09 08:34:32 2015 +0000
@@ -64,37 +64,30 @@
bool lastDown;
int nGameTickDelay; // delay during game-tick
- void printDouble(double value, int x, int y);
-
void initialize();
+ void printDouble(double value, int x, int y);
void drawString(const char* str, int y);
+ void printf(int x, int y, const char *szFormat, ...);
+ int checkTiltLeftRight();
-
void initializePaddle();
void updatePaddle();
void redrawPaddle();
-/*
- void clearPaddle();
- void drawPaddle();
-*/
- //void initializeBall();
- //void initializeBalls();
+ void checkPaddle();
+
void setNoBalls();
void newBall();
void updateBalls();
void redrawBalls();
int countBalls();
+ void checkNumBalls();
void checkBallsCollision();
+
void redrawTopWall();
-
- int checkTilt();
void checkButtons();
- void checkPaddle();
//void checkCollision();
- void printf(int x, int y, const char *szFormat, ...);
- void checkBalls();
public:
Game();
--- a/RETRO_BallsAndThings.lib Fri Feb 06 10:18:41 2015 +0000 +++ b/RETRO_BallsAndThings.lib Mon Feb 09 08:34:32 2015 +0000 @@ -1,1 +1,1 @@ -RETRO_BallsAndThings#71185a0aadfc +http://developer.mbed.org/users/maxint/code/RETRO_BallsAndThings/#71185a0aadfc