# Dynamite screen clear game

**URL:** <https://discourse.processing.org/t/dynamite-screen-clear-game/28241>\
**Category:** Coding Questions\
**Tags:** homework\
**Created:** [March 4, 2021, 1:33am UTC](https://discourse.processing.org/t/dynamite-screen-clear-game/28241 "2021-03-04T01:33:03Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![boomstick55](https://avatars.discourse-cdn.com/v4/letter/b/ee59a6/32.png) [@boomstick55](https://discourse.processing.org/u/boomstick55)\
**Post date:** [March 4, 2021, 1:33am UTC](https://discourse.processing.org/t/dynamite-screen-clear-game/28241/1 "2021-03-04T01:33:04Z")

</div>

Im trying to simulate a player pushing down ignition for dynamite to explode and clear the screen of bad guys but I cant figure out how to detect the rect reaching a certain point of the screen to clear it

here’s my code

Bombs[] bomb = new Bombs[2];

ArrayList enemies = new ArrayList();

PImage source;

void setup() {  
size(600, 600);  
noStroke();  
// init them: (xPos, yPos, width, height)  
bomb[0] = new Bombs(10, 520, 30, 15);  
bomb[1] = new Bombs(70, 520, 30, 15);  
}

void draw() {  
background(100);

for (Bombs b : bomb) {  
b.run();  
}  
}

void mousePressed() {

//lock if clicked  
for (Bombs b : bomb) {  
{  
if (b.isOver())  
b.lock = true;  
}  
}  
}

void mouseReleased() {

//unlock  
for (Bombs b : bomb) {  
{  
b.lock = false;  
}  
}  
}

class Bombs {

float x, y, w, h;  
float initialY;

boolean kill = true;  
boolean lock = false;

// grabs coordinates from methods  
Bombs (float \_x, float \_y, float \_w, float \_h) {

```
x=_x;
y=_y;
w=_w;
h=_h;

```

}

void run() {

```
fill(0);
//shaft
rect(x, 520, 10, 100);

handle();

```

}

// is mouse ove knob?  
boolean isOver()  
{  
return (x+w \>= mouseX) && (mouseX \>= x) && (y+h \>= mouseY) && (mouseY \>= y);  
}

void handle() {  
//handle  
fill(255, 0, 0);  
rect(x-10, y, w, h);

```
//get mouseInput and map it
float my = constrain(mouseY, 520, height - h - initialY );
if (lock) y = my;

if (kill) {
    if ( h > source.height -10) {
      enemies.clear();
      kill = false;
    }
  }

```

}  
}

---

<div class="post-metadata">

**Author:** ![MiguelSanches](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/miguelsanches/32/11172_2.png) [@MiguelSanches](https://discourse.processing.org/u/MiguelSanches)\
**Post date:** [March 4, 2021, 8:31am UTC](https://discourse.processing.org/t/dynamite-screen-clear-game/28241/2 "2021-03-04T08:31:07Z")

</div>

Hi @boomstick55

Can you provide the full version of your code? It is hard to understand and see the problem if we can’t test it 😕

Best regards

---

<div class="post-metadata">

**Author:** ![boomstick55](https://avatars.discourse-cdn.com/v4/letter/b/ee59a6/32.png) [@boomstick55](https://discourse.processing.org/u/boomstick55)\
**Post date:** [March 4, 2021, 9:56am UTC](https://discourse.processing.org/t/dynamite-screen-clear-game/28241/3 "2021-03-04T09:56:17Z")

</div>

//call classes  
Player player = new Player();  
Screens screen = new Screens();

// array to hold all sliders  
Bombs[] bomb = new Bombs[2];

//calls arrays and classes  
ArrayList enemies = new ArrayList();  
ArrayList bullets = new ArrayList();

//calls images  
PImage playerSprite, enemySprite, source;

int i;  
int score = 0;  
int difficultySelect = 0;  
int gameScreen = 0;

void setup() {  
size(600, 600);  
smooth();  
noStroke();  
noCursor();  
cursor (CROSS);  
ellipseMode(CENTER);  
imageMode(CENTER);  
frameRate(60);

//load and sets images  
source = loadImage(“maptest.png”);

playerSprite = loadImage(“player.png”);  
playerSprite.resize(50, 50);  
player.playerPos.set(300, 570);

enemySprite = loadImage(“zombie.png”);  
enemySprite.resize(50, 50);

//creates dynamite  
bomb[0] = new Bombs(10, 520, 30, 15);  
bomb[1] = new Bombs(70, 520, 30, 15);  
}

void draw() {  
background(source);

// Changes screen states  
if (gameScreen == 0) {  
screen.startScreen();  
} else if (gameScreen == 1) {  
screen.easygameplayScreen();  
} else if (gameScreen == 2) {  
screen.mediumgameplayScreen();  
} else if (gameScreen == 3) {  
screen.hardgameplayScreen();  
} else if (gameScreen == 4) {  
screen.gameOverScreen();  
}  
}

//player movement  
void keyPressed() {  
final int k = keyCode;  
if (k == LEFT || k == ‘A’)  
player.playerSpd.x = -player.playerVel;  
else if (k == RIGHT || k == ‘D’)  
player.playerSpd.x = player.playerVel;  
}

void keyReleased() {  
final int k = keyCode;  
if ( (k == LEFT || k == ‘A’) && player.playerSpd.x \< 0  
|| (k == RIGHT || k == ‘D’) && player.playerSpd.x \> 0 )  
player.playerSpd.x = 0;  
}

public void mousePressed() {

// depending on the screen clicking changes the state  
if (gameScreen==0) {  
screen.startGame();  
}  
if (gameScreen==4) {  
screen.restart();  
}  
//locks handle if clicked  
for (Bombs b : bomb) {  
{  
if (b.isOver())  
b.lock = true;  
}  
}  
}

void mouseReleased() {

//unlock  
for (Bombs b : bomb) {  
{  
b.lock = false;  
}  
}  
}

// remove bullets  
void handleBullets() {  
for ( int b = bullets.size(); b != 0; )  
if ( bullets.get(–b).run() )  
bullets.remove(b);  
print(bullets.size() + “\t”);  
}

* * *

class Bombs {

float x, y, w, h;  
float initialY;

boolean kill = true;  
boolean lock = false;

// grabs coordinates from methods  
Bombs (float \_x, float \_y, float \_w, float \_h) {

```
x=_x;
y=_y;
w=_w;
h=_h;

```

}

void run() {

```
pushMatrix();
fill(0);
//draws shaft
rect(x, 520, 10, 100);

handle();
popMatrix();

```

}

// sees if mouse is over the handle  
boolean isOver()  
{  
return (x+w \>= mouseX) && (mouseX \>= x) && (y+h \>= mouseY) && (mouseY \>= y);  
}

void handle() {  
//handle  
fill(255, 0, 0);  
rect(x-10, y, w, h);

```
//get mouseInput and map it
float my = constrain(mouseY, 520, height - h - initialY );
if (lock) y = my;

if (kill) {
  if ( h > source.height -10) {
    enemies.clear();
    kill = false;
  }
}

```

}  
}

class Bullet extends PVector {

PVector vel;

// grab get player location and velocity from player  
Bullet(PVector loc, PVector vel) {  
super(loc.x, loc.y);  
this.vel = vel;  
}

// bullet shape  
void display() {  
final byte bulletSize = 4;  
fill(255, 0, 0);  
rect(x+15, y-30, bulletSize, 10);  
}

// bullet speed  
boolean update() {  
add(vel);  
return x \> width || x \< 0 || y \> height || y \< 0;  
}

// move animation  
boolean run() {  
display();  
return update();  
}  
}

* * *

class Bullet extends PVector {

PVector vel;

// grab get player location and velocity from player  
Bullet(PVector loc, PVector vel) {  
super(loc.x, loc.y);  
this.vel = vel;  
}

// bullet shape  
void display() {  
final byte bulletSize = 4;  
fill(255, 0, 0);  
rect(x+15, y-30, bulletSize, 10);  
}

// bullet speed  
boolean update() {  
add(vel);  
return x \> width || x \< 0 || y \> height || y \< 0;  
}

// move animation  
boolean run() {  
display();  
return update();  
}  
}

* * *

class Enemy {

float x, y;

// enemy spawns  
Enemy() {  
x = random(30, 550);  
y = -40;  
}

void difficutlySelect() {  
}

// enemy speed  
void easyMove() {  
y = y + random(1, 3);  
}

void mediumMove() {  
y = y + random(2, 4);  
}

void hardMove() {  
y = y + random(3, 4);  
}

//enemy image  
void display() {  
image(enemySprite, x, y);  
}  
}

* * *

class Enemy {

float x, y;

// enemy spawns  
Enemy() {  
x = random(30, 550);  
y = -40;  
}

void difficutlySelect() {  
}

// enemy speed  
void easyMove() {  
y = y + random(1, 3);  
}

void mediumMove() {  
y = y + random(2, 4);  
}

void hardMove() {  
y = y + random(3, 4);  
}

//enemy image  
void display() {  
image(enemySprite, x, y);  
}  
}

* * *

class Player {

final PVector playerPos = new PVector();  
final PVector playerSpd = new PVector();  
final byte playerVel = 3;  
final static byte bulletVel = 3;  
float angle = 0;  
float targetAngle = 0;  
float easing = 0.05f;

// playe movement  
void movePlayer() {  
playerPos.add(playerSpd);  
if (playerPos.x \> width )  
playerPos.x = width;  
else if (playerPos.x \< 0)  
playerPos.x = 0;  
else if (playerPos.x \> 500)  
playerPos.x = 500;  
}

// player image  
void displayPlayer() {

```
// sets angle
angle = atan2(playerPos.y - mouseY, playerPos.x - mouseX);

float dir = (angle - targetAngle) / TWO_PI;
dir -= round( dir );
dir *= TWO_PI;

targetAngle += dir * easing;

//push pop lets player rotate
pushMatrix();
translate( playerPos.x, playerPos.y );
rotate( targetAngle );
image(playerSprite, 0, 0);
popMatrix();

```

}

void rotatePlayer() {

```
translate(mouseX, mouseY);
rotate(radians(frameCount));

```

}

//every 20th frame to simulate a rate of fire  
void shoot() {  
final byte bulletGap = 20;  
if (mousePressed && frameCount % bulletGap == 0)  
player.addBullet();  
}

// bulletSpd gets mouse position, gets the player position  
// translates value so bullets can read information  
void addBullet() {  
final PVector bulletSpd = new PVector();  
bulletSpd.set(mouseX, mouseY, 0);  
bulletSpd.sub(playerPos);  
bulletSpd.normalize();  
bulletSpd.mult(7);  
bullets.add( new Bullet(playerPos, bulletSpd) );  
}  
}