Java4K.com

Description

In a dystopian future, the world is invaded by green balls. You, the purple ball, is the only one who can save the world! Can you complete all 19 levels, and stop the green balls from taking over the world?

Instructions

Arrow keys: Move
Space: Fire

Shoot the green balls. You can hold down space to fire constantly (but you may run out of bullets).

You can climb ladders.

User Comments

Total 2 comments:

#1	By omeawa	Mar 21, 2012 at 03:48:27
good

#2	By zzq1986	Jun 21, 2012 at 08:29:49
beautiful

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Source code

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/* * Attac4k of the Greenballs * Copyright (C) 2012 Jens Stääf * * Attac4k of the Greenballs is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published * by the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see. * */ import java.applet.Applet; import java.awt.AWTEvent; import java.awt.Color; import java.awt.Graphics; import java.awt.event.KeyEvent; import java.awt.image.BufferedImage; import java.util.Random; public class G extends Applet implements Runnable { // SIZE final static int WINDOW_WIDTH = 702; final static int WINDOW_HEIGHT = 480; final static int MAP_WIDTH = 22; final static int MAP_HEIGHT = 15; final static int TILE_SIZE = 32; // TILES final static char TILE_SPACE = '0'; final static char TILE_WALL = '1'; final static char TILE_LADDER = '2'; // DIRECTION final static int DIRECTION_NONE = -1; final static int DIRECTION_LEFT = 0; final static int DIRECTION_RIGHT = 1; // BOOLEAN final static int NO = 0; final static int YES = 1; // MISC. CONSTANTS final static int MAX_NUMBER_OF_ACTIVE_BULLETS = 4; final static int MAX_NUMBER_OF_ENEMIES = 7; final static int MAX_NUMBER_OF_PARTICLES = 150; final static int TIME_BETWEEN_BULLETS = 19; // LEVELS final static String levels = "111111111111111111111110000000000000000000011000000000000000000001100112100000011211000110000200000000020000011000020000000002000001100002000000000111211110000200000000000020011112111000000000002001100200000000000000200110020000000001211110011001111120000020000001100000002000002000000110000000200000200000011111111111111111111111111111111111111111111110000000000000000000011000000000000000000001100000000000000000000110000012111111210000011000000200000020000111100000020000002000000110011211000000200000011000020000021111120001111002000002000002000110000200000200000200011000011121111110020001100000002000000002000110000000200000000200011111111111111111111111111111111111111111111110000000000000000000011000000000000000000001100111211112000000000110000020000200112110011000002000020000200001100211111002000020000110020000000200002000011002000000020000200001100200001211112110000110020000020000200000011002000002000020000001100111211100001112100110000020000000000200011111111111111111111111111111111111111111111110000000000000000000011000000000000000000001111100000000000000000110000000000000000011111000211000000000000001100020000000000111000110002000000000000000011000111121112112100001100000002000200200000110000000200020020000011000002110002011112001100000200000200000200110000020000020000020011111111111111111111111111111111111111111111110000000000000000000011000000000000000000001100111121001120001121110000002000002000002011000000200000200000201100002111111110002111110000200000000000200011000020000000000020001100002000000012111100110000200000000200000011000020000000011210001100002000000000020000110000200000000002000011111111111111111111111111111111111111111111110000000000000000000011000000000000000000001102111120000000111000110200002000000000000011020011112110000000001102000000200000000000111112100020000000000011000200002001112110001100020000200000200000110002000020000020011111001112111000002000001100000200000001111200110000020000000000020011111111111111111111111111111111111111111111110000000000000000000011000000001110000000001100011100000000111000110000000000000000000011000000000000000000001112100000011121111000110200000000002000000011020001211100200000001102000020000020000000110200002000002000000011020021111111112000001102002000000000200000110200200000000020000011111111111111111111111111111111111111111111110000000000000000000011001120000000001112001100002000000000000200111121100000000000111111002000000000000000001100111200000000012100110000020000000000200011000001111111120020001100000000000002002000110211110000021111100011020000000002000000001111121111111112111121110002000000000200002011111111111111111111111111111111111111111111110000000000000000000011000000000000000000001100000000100000000000111001112110011111210011000000200000000020001100000020000000002000111111111000000000200011000100000012111110001100010000000200000000110000001211111110000011112100020000001001211100200002000000100020110020000200000000002011111111111111111111111111111111111111111111110000000000000000000011000000000000000000001100000000000000000000110011120000000021110011000002001111002000001100000200000000200000110000020000000020000011111001112112111001111100000000200200000000110000000020020000000011001121111001111211001100002000000000020000110000200000000002000011111111111111111111111"; // PLAYER CONTROLS static int PLAYER_MOVING_LEFT = NO; static int PLAYER_MOVING_RIGHT = NO; static int PLAYER_MOVING_UP = NO; static int PLAYER_MOVING_DOWN = NO; static int BUTTON_FIRE_PRESSED = NO; // SPEED final static int PLAYER_SPEED = 2; final static int BULLET_SPEED = 4; final static int ENEMY_SPEED = 2; public void start() { new Thread(this).start(); } public void run() { setSize(WINDOW_WIDTH, WINDOW_HEIGHT); this.enableEvents(AWTEvent.KEY_EVENT_MASK); BufferedImage screen = new BufferedImage(WINDOW_WIDTH, WINDOW_HEIGHT, BufferedImage.TYPE_INT_RGB); Graphics g = screen.getGraphics(); Graphics appletGraphics = getGraphics(); Random random = new Random(); /* VARIABLES */ // Images BufferedImage mapImage1 = null; BufferedImage mapImage2 = null; BufferedImage bgImage1 = null; BufferedImage bgImage2 = null; // Player int player_x = 0; int player_y = 0; int player_falling = NO; int player_direction = DIRECTION_RIGHT; int player_climbing = NO; int player_bulletCounter = 0; // Bullets int bullet_x[] = new int[MAX_NUMBER_OF_ACTIVE_BULLETS]; int bullet_y[] = new int[MAX_NUMBER_OF_ACTIVE_BULLETS]; int bullet_direction[] = new int[MAX_NUMBER_OF_ACTIVE_BULLETS]; int numberOfActiveBullets = 0; // Enemies int numberOfActiveEnemies = 0; int enemy_x[] = new int[MAX_NUMBER_OF_ENEMIES]; int enemy_y[] = new int[MAX_NUMBER_OF_ENEMIES]; int enemy_health[] = new int[MAX_NUMBER_OF_ENEMIES]; int enemy_direction[] = new int[MAX_NUMBER_OF_ENEMIES]; int enemy_climbing[] = new int[MAX_NUMBER_OF_ENEMIES]; // Animation int balls_height = 0; int balls_direction_isUp = YES; // Particles int particle_x[] = new int[MAX_NUMBER_OF_PARTICLES]; int particle_y[] = new int[MAX_NUMBER_OF_PARTICLES]; float particle_xVelocity[] = new float[MAX_NUMBER_OF_PARTICLES]; float particle_yVelocity[] = new float[MAX_NUMBER_OF_PARTICLES]; int particle_life[] = new int[MAX_NUMBER_OF_PARTICLES]; int activeParticles = 0; // Level state int levelLoaded = NO; int levelCompleted = YES; int levelIndex = 0; int killedEnemies = 0; int draw_textTimer = 0; String currentLevel = ""; // Level graphics positions int mapX = 0; int bgX = 0; // General int i; int x; int y; int a; // Walls BufferedImage wallImage = new BufferedImage(TILE_SIZE, TILE_SIZE, BufferedImage.TYPE_INT_ARGB); Graphics wallGraphics = wallImage.getGraphics(); for (x = 0; x < TILE_SIZE; x++) { for (y = 0; y < TILE_SIZE; y++) { int randomNumber = random.nextInt(100) + 80; wallGraphics.setColor(new Color(randomNumber, randomNumber, randomNumber)); wallGraphics.fillRect(x, y, 1, 1); } } // Ladders BufferedImage ladderImage = new BufferedImage(TILE_SIZE, TILE_SIZE, BufferedImage.TYPE_INT_ARGB); Graphics ladderGfx = ladderImage.getGraphics(); ladderGfx.setColor(Color.BLACK); ladderGfx.fillRect(0, 0, 2, TILE_SIZE); ladderGfx.fillRect(30, 0, 2, TILE_SIZE); ladderGfx.fillRect(0, 0, TILE_SIZE, 2); ladderGfx.fillRect(0, 15, TILE_SIZE, 2); // Loading level-box BufferedImage loadBoxImage = new BufferedImage(200, 40, BufferedImage.TYPE_INT_ARGB); Graphics loadBoxGfx = loadBoxImage.getGraphics(); for (i = 0; i < 40; i++) { loadBoxGfx.setColor(new Color(255 - (i * 3), 255 - (i * 3), 255 - (i * 3))); loadBoxGfx.drawLine(0, i, 200, i); } loadBoxGfx.setColor(Color.BLACK); loadBoxGfx.drawRect(0, 0, 199, 39); loadBoxGfx.drawRect(1, 1, 197, 37); loadBoxGfx.drawString("Level", 77, 25); // Show the start screen while (BUTTON_FIRE_PRESSED == NO) { // Draw background g.setColor(Color.BLACK); g.fillRect(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT); g.setColor(Color.WHITE); g.drawString("Attac4k of the Greenballs", 260, 30); g.drawString("Jens Stääf 2012", 293, 50); g.drawString("Press space to start", 276, 220); // Draw the entire results on the screen. appletGraphics.drawImage(screen, 0, 0, null); Thread.yield(); } // Reset the fire button BUTTON_FIRE_PRESSED = NO; // Game loop. long nextFrameStartTime = System.nanoTime(); while (true) { // New level if (levelCompleted == YES) { levelIndex++; levelCompleted = NO; killedEnemies = 0; player_climbing = NO; player_falling = NO; numberOfActiveBullets = 0; player_bulletCounter = 0; draw_textTimer = 200; levelLoaded = NO; mapX = WINDOW_WIDTH; bgX = -702; if (levelIndex == 20) levelIndex = 1; if (levelIndex < 10) currentLevel = levels.substring(((levelIndex - 1) * 330), ((levelIndex - 1) * 330) + 330); else currentLevel = levels.substring(((levelIndex - 10) * 330), ((levelIndex - 10) * 330) + 330); numberOfActiveEnemies = (levelIndex / 3) + 1; // Init enemies for (i = 0; i < numberOfActiveEnemies; i++) enemy_health[i] = 0; // Render background x = random.nextInt(7) + 2; i = random.nextInt(7) + 2; a = random.nextInt(7) + 2; bgImage2 = new BufferedImage(WINDOW_WIDTH, WINDOW_HEIGHT, BufferedImage.TYPE_INT_ARGB); Graphics backgroundGfx = bgImage2.getGraphics(); for (y = 0; y < WINDOW_HEIGHT; y++) { backgroundGfx.setColor(new Color(255 - (y / x), 255 - (y / i), 255 - (y / a))); backgroundGfx.drawLine(0, y, WINDOW_WIDTH, y); } // Render map mapImage2 = new BufferedImage(WINDOW_WIDTH, WINDOW_HEIGHT, BufferedImage.TYPE_INT_ARGB); Graphics gfx = mapImage2.getGraphics(); gfx.setColor(Color.BLACK); for (y = 0; y < MAP_HEIGHT; y++) { for (x = 0; x < MAP_WIDTH; x++) { if (currentLevel.charAt((y * MAP_WIDTH) + x) == TILE_WALL) { gfx.drawImage(wallImage, x * TILE_SIZE, y * TILE_SIZE, null); if (y != 0 && currentLevel .charAt(((y - 1) * MAP_WIDTH) + x) != TILE_WALL) gfx.drawLine(x * TILE_SIZE, y * TILE_SIZE, x * TILE_SIZE + TILE_SIZE, y * TILE_SIZE); // Upper // line if (y != MAP_HEIGHT - 1 && currentLevel .charAt(((y + 1) * MAP_WIDTH) + x) != TILE_WALL) gfx.drawLine(x * TILE_SIZE, y * TILE_SIZE + TILE_SIZE, x * TILE_SIZE + TILE_SIZE, y * TILE_SIZE + TILE_SIZE); // Lower // line if (x != 0 && currentLevel.charAt((y * MAP_WIDTH) + (x - 1)) == TILE_SPACE) gfx.drawLine(x * TILE_SIZE, y * TILE_SIZE, x * TILE_SIZE, y * TILE_SIZE + TILE_SIZE); // Left // line if (x != MAP_WIDTH - 1 && currentLevel.charAt((y * MAP_WIDTH) + (x + 1)) == TILE_SPACE) gfx.drawLine(x * TILE_SIZE + TILE_SIZE, y * TILE_SIZE, x * TILE_SIZE + TILE_SIZE, y * TILE_SIZE + TILE_SIZE); // Right // line } else if (currentLevel.charAt((y * MAP_WIDTH) + x) == TILE_LADDER) { gfx.drawImage(ladderImage, x * TILE_SIZE, y * TILE_SIZE, null); } } } gfx.setColor(Color.BLACK); gfx.fillRect(0, 458, WINDOW_WIDTH, 40); gfx.setColor(Color.WHITE); gfx.drawLine(0, 458, WINDOW_WIDTH, 458); for (i = 0; i < MAX_NUMBER_OF_ACTIVE_BULLETS; i++) bullet_direction[i] = DIRECTION_NONE; nextFrameStartTime = System.nanoTime(); } // Level is loaded if (levelLoaded == NO) { mapX -= 5; bgX += 5; if (player_x > 352) player_x -= 4; else if (player_x < 352) player_x += 4; if (player_y > 416) player_y -= 4; else if (player_y < 416) player_y += 4; if (mapX <= 0) { mapX = 0; mapImage1 = mapImage2; bgImage1 = bgImage2; levelLoaded = YES; player_x = 352; player_y = 416; // Init enemies for (i = 0; i < numberOfActiveEnemies; i++) { enemy_x[i] = ((i + 1) * 2) * 32; enemy_y[i] = 32; enemy_health[i] = 5; enemy_direction[i] = random.nextInt(2); enemy_climbing[i] = NO; } } } do { nextFrameStartTime += 16666667; // Time between bullets, to prevent rapid fire if (player_bulletCounter < TIME_BETWEEN_BULLETS) player_bulletCounter++; // Decrease the "Loading level-text" if (draw_textTimer > 0) draw_textTimer--; // Input if (levelLoaded == YES) { if (PLAYER_MOVING_LEFT == YES && player_climbing == NO && player_falling == NO) { if (currentLevel.charAt(((player_y / 32) * MAP_WIDTH) + (player_x / 32)) == TILE_SPACE || currentLevel .charAt(((player_y / 32) * MAP_WIDTH) + (player_x / 32)) == TILE_LADDER) player_x -= PLAYER_SPEED; player_direction = DIRECTION_LEFT; } else if (PLAYER_MOVING_RIGHT == 1 && player_climbing == NO && player_falling == NO) { if (currentLevel.charAt(((player_y / 32) * MAP_WIDTH) + (player_x / 32 + 1)) == TILE_SPACE || currentLevel .charAt(((player_y / 32) * MAP_WIDTH) + (player_x / 32 + 1)) == TILE_LADDER) player_x += PLAYER_SPEED; player_direction = DIRECTION_RIGHT; } if (PLAYER_MOVING_UP == YES) { if ((currentLevel.charAt(((player_y / 32) * MAP_WIDTH) + (player_x / 32)) == TILE_LADDER || currentLevel .charAt(((player_y / 32) * MAP_WIDTH) + (player_x / 32 + 1)) == TILE_LADDER) || (player_climbing == YES && (currentLevel .charAt(((player_y / 32 + 1) * MAP_WIDTH) + (player_x / 32)) == TILE_LADDER || currentLevel .charAt(((player_y / 32 + 1) * MAP_WIDTH) + (player_x / 32 + 1)) == TILE_LADDER))) { player_y -= PLAYER_SPEED; player_climbing = YES; } else player_climbing = NO; } else if (PLAYER_MOVING_DOWN == YES) { if (currentLevel .charAt(((player_y / 32 + 1) * MAP_WIDTH) + (player_x / 32)) == TILE_LADDER || currentLevel .charAt(((player_y / 32 + 1) * MAP_WIDTH) + (player_x / 32 + 1)) == TILE_LADDER) { player_y += PLAYER_SPEED; player_climbing = YES; } else player_climbing = NO; } if (BUTTON_FIRE_PRESSED == YES && player_climbing == NO && player_bulletCounter >= TIME_BETWEEN_BULLETS) { if (numberOfActiveBullets < MAX_NUMBER_OF_ACTIVE_BULLETS) { for (i = 0; i < MAX_NUMBER_OF_ACTIVE_BULLETS; i++) { if (bullet_direction[i] == DIRECTION_NONE) { bullet_x[i] = player_x; bullet_y[i] = player_y; bullet_direction[i] = player_direction; numberOfActiveBullets++; break; } } } player_bulletCounter = 0; } } // Do the ball jumping animation if (balls_direction_isUp == YES) { balls_height++; if (balls_height >= 10) balls_direction_isUp = NO; } else { balls_height--; if (balls_height <= -10) balls_direction_isUp = YES; } // Update particles for (i = activeParticles - 1; i > -1; i--) { particle_x[i] += particle_xVelocity[i]; particle_y[i] += particle_yVelocity[i]; particle_life[i]--; if (particle_life[i] < 1) activeParticles--; particle_yVelocity[i] += Float.valueOf(particle_life[i]) / 500; } // Update bullets for (i = 0; i < MAX_NUMBER_OF_ACTIVE_BULLETS; i++) { if (bullet_direction[i] != DIRECTION_NONE) { if (bullet_direction[i] == DIRECTION_RIGHT) bullet_x[i] += BULLET_SPEED; else bullet_x[i] -= BULLET_SPEED; if (bullet_x[i] < 0 || bullet_x[i] > WINDOW_WIDTH) { numberOfActiveBullets--; bullet_direction[i] = DIRECTION_NONE; } } } // Update enemies for (i = 0; i < numberOfActiveEnemies; i++) { // Find the player if (player_y == enemy_y[i]) { if (player_x > enemy_x[i]) enemy_direction[i] = DIRECTION_RIGHT; else enemy_direction[i] = DIRECTION_LEFT; } // Move the enemies if (enemy_health[i] > 0) { if (currentLevel .charAt(((enemy_y[i] / 32 + 1) * MAP_WIDTH) + (enemy_x[i] / 32 + 1)) == TILE_SPACE && currentLevel .charAt(((enemy_y[i] / 32 + 1) * MAP_WIDTH) + (enemy_x[i] / 32)) == TILE_SPACE) { enemy_y[i] += ENEMY_SPEED; enemy_climbing[i] = NO; } else if (player_y != enemy_y[i] && currentLevel .charAt(((enemy_y[i] / 32) * MAP_WIDTH) + (enemy_x[i] / 32)) == TILE_LADDER && random.nextInt(17) == 1) { enemy_climbing[i] = YES; } else if (enemy_climbing[i] == YES) { enemy_y[i] -= ENEMY_SPEED; } else if (enemy_direction[i] == DIRECTION_RIGHT) { if (currentLevel .charAt(((enemy_y[i] / 32) * MAP_WIDTH) + (enemy_x[i] / 32 + 1)) == TILE_SPACE || currentLevel .charAt(((enemy_y[i] / 32) * MAP_WIDTH) + (enemy_x[i] / 32 + 1)) == TILE_LADDER) enemy_x[i] += ENEMY_SPEED; else enemy_direction[i] = DIRECTION_LEFT; } else { if (currentLevel .charAt(((enemy_y[i] / 32) * MAP_WIDTH) + (enemy_x[i] / 32)) == TILE_SPACE || currentLevel .charAt(((enemy_y[i] / 32) * MAP_WIDTH) + (enemy_x[i] / 32)) == TILE_LADDER) enemy_x[i] -= ENEMY_SPEED; else enemy_direction[i] = DIRECTION_RIGHT; } // Collision with player if (((enemy_x[i] >= player_x && enemy_x[i] <= player_x + TILE_SIZE) || (enemy_x[i] <= player_x && enemy_x[i] >= player_x - TILE_SIZE)) && ((enemy_y[i] >= player_y && enemy_y[i] <= player_y + TILE_SIZE) || (enemy_y[i] <= player_y && enemy_y[i] >= player_y - TILE_SIZE))) { levelIndex--; levelCompleted = YES; // Create particles for (y = 0; y < 20; y++) { if (activeParticles < MAX_NUMBER_OF_PARTICLES) { particle_x[activeParticles] = player_x; particle_y[activeParticles] = player_y; particle_xVelocity[activeParticles] = random .nextInt(6) - 3; particle_yVelocity[activeParticles] = random .nextInt(6) - 3; if (particle_xVelocity[activeParticles] == 0) particle_xVelocity[activeParticles] = 3; if (particle_yVelocity[activeParticles] == 0) particle_yVelocity[activeParticles] = -3; particle_life[activeParticles] = 100; activeParticles++; } } // Remove all enemies so the player cannot // collide // with them muptiple times numberOfActiveEnemies = 0; break; } // Collision with bullets for (x = 0; x < MAX_NUMBER_OF_ACTIVE_BULLETS; x++) { if (bullet_direction[x] != DIRECTION_NONE && ((enemy_x[i] >= bullet_x[x] && enemy_x[i] <= bullet_x[x] + TILE_SIZE) || (enemy_x[i] <= bullet_x[x] && enemy_x[i] >= bullet_x[x] - TILE_SIZE)) && ((enemy_y[i] >= bullet_y[x] && enemy_y[i] <= bullet_y[x] + TILE_SIZE) || (enemy_y[i] <= bullet_y[x] && enemy_y[i] >= bullet_y[x] - TILE_SIZE))) { enemy_health[i]--; bullet_direction[x] = DIRECTION_NONE; numberOfActiveBullets--; if (enemy_health[i] == 0) { killedEnemies++; if (killedEnemies == numberOfActiveEnemies) levelCompleted = YES; } // Create particles for (y = 0; y < 20; y++) { if (activeParticles < MAX_NUMBER_OF_PARTICLES) { particle_x[activeParticles] = bullet_x[x]; particle_y[activeParticles] = bullet_y[x]; particle_xVelocity[activeParticles] = random .nextInt(6) - 3; particle_yVelocity[activeParticles] = random .nextInt(6) - 3; if (particle_xVelocity[activeParticles] == 0) particle_xVelocity[activeParticles] = 3; if (particle_yVelocity[activeParticles] == 0) particle_yVelocity[activeParticles] = -3; particle_life[activeParticles] = 100; activeParticles++; } } } } } } // Is player falling? if (player_falling == YES) player_y += 2; if (currentLevel.charAt(((player_y / 32 + 1) * MAP_WIDTH) + (player_x / 32 + 1)) == TILE_SPACE && currentLevel .charAt(((player_y / 32 + 1) * MAP_WIDTH) + (player_x / 32)) == TILE_SPACE) player_falling = YES; else player_falling = NO; } while (nextFrameStartTime < System.nanoTime()); // Draw background g.setColor(Color.BLACK); g.fillRect(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT); // Draw level if (levelLoaded == NO) { g.drawImage(bgImage1, bgX + WINDOW_WIDTH, 0, null); g.drawImage(bgImage2, bgX, 0, null); g.drawImage(mapImage1, mapX - WINDOW_WIDTH, 0, null); g.drawImage(mapImage2, mapX, 0, null); } else { g.drawImage(bgImage1, 0, 0, null); g.drawImage(mapImage1, 0, 0, null); } // Draw the player g.setColor(new Color(185, 0, 185)); g.fillOval(player_x + (balls_height / 2), player_y - balls_height, 32 - balls_height, 32 + balls_height); g.setColor(new Color(225, 0, 225)); g.fillOval(player_x + (balls_height / 2), player_y - balls_height, 28 - balls_height, 28 + balls_height); g.setColor(Color.BLACK); g.drawOval(player_x + (balls_height / 2), player_y - balls_height, 32 - balls_height, 32 + balls_height); g.setColor(new Color(255, 0, 255)); g.fillOval(player_x + (balls_height / 2) + 3, player_y - balls_height + 3, 16 - balls_height, 16 + balls_height); // Draw enemies for (i = 0; i < numberOfActiveEnemies; i++) { if (enemy_health[i] > 0) { g.setColor(new Color(0, 10 - (enemy_health[i] * -35), 0)); g.fillOval(enemy_x[i] + (balls_height / 2), enemy_y[i] - balls_height, 32 - balls_height, 32 + balls_height); g.setColor(new Color(0, 50 - (enemy_health[i] * -35), 0)); g.fillOval(enemy_x[i] + (balls_height / 2), enemy_y[i] - balls_height, 28 - balls_height, 28 + balls_height); g.setColor(Color.BLACK); g.drawOval(enemy_x[i] + (balls_height / 2), enemy_y[i] - balls_height, 32 - balls_height, 32 + balls_height); g.setColor(new Color(0, 80 - (enemy_health[i] * -35), 0)); g.fillOval(enemy_x[i] + (balls_height / 2) + 3, enemy_y[i] - balls_height + 3, 16 - balls_height, 16 + balls_height); } } // Draw particles for (i = 0; i < activeParticles; i++) { g.setColor(new Color(0, 55 + (particle_life[i] * 2), 0)); g.fillRect(particle_x[i], particle_y[i], 3, 3); } // Draw text g.setColor(Color.WHITE); g.drawString("Level:", 5, 474); g.drawString(String.valueOf(levelIndex), 43, 474); g.drawString("Bullets:", 590, 474); // Draw the bullets y = 0; for (i = 0; i < MAX_NUMBER_OF_ACTIVE_BULLETS; i++) { if (bullet_direction[i] != DIRECTION_NONE) { for (x = 0; x < 16; x++) { g.setColor(new Color(255 - random.nextInt(255), 255 - random.nextInt(255), 255 - random .nextInt(255))); g.fillRect(bullet_x[i] + x * 2, bullet_y[i] + 9 + random.nextInt(6) - 6, 4, 2); } } else { g.setColor(Color.WHITE); g.fillOval(645 + 12 * y, 465, 9, 9); y++; } } // Draw "next level"-text if a new level is starting if (draw_textTimer > 0) { g.setColor(Color.BLACK); g.drawImage(loadBoxImage, 265, 230, null); g.drawString(String.valueOf(levelIndex), 379, 255); } // Draw the entire results on the screen. appletGraphics.drawImage(screen, 0, 0, null); // Burn off extra cycles while (nextFrameStartTime - System.nanoTime() > 0) { Thread.yield(); } } } public void processKeyEvent(KeyEvent e) { int keyCode = e.getKeyCode(); if (e.getID() == KeyEvent.KEY_PRESSED) { if (keyCode == KeyEvent.VK_SPACE) BUTTON_FIRE_PRESSED = YES; else if (keyCode == KeyEvent.VK_LEFT) PLAYER_MOVING_LEFT = YES; else if (keyCode == KeyEvent.VK_RIGHT) PLAYER_MOVING_RIGHT = YES; else if (keyCode == KeyEvent.VK_UP) PLAYER_MOVING_UP = YES; else if (keyCode == KeyEvent.VK_DOWN) PLAYER_MOVING_DOWN = YES; } else if (e.getID() == KeyEvent.KEY_RELEASED) { if (keyCode == KeyEvent.VK_SPACE) BUTTON_FIRE_PRESSED = NO; else if (keyCode == KeyEvent.VK_LEFT) PLAYER_MOVING_LEFT = NO; else if (keyCode == KeyEvent.VK_RIGHT) PLAYER_MOVING_RIGHT = NO; else if (keyCode == KeyEvent.VK_UP) PLAYER_MOVING_UP = NO; else if (keyCode == KeyEvent.VK_DOWN) PLAYER_MOVING_DOWN = NO; } } }