c# - Breakout Brick Collision -
i need getting collision detection work bricks in breakout clone. i've spent hours reading answers on different websites seem in other coding languages i'm not familiar , not sure how translate them over.
i've got collision working on walls, paddle, , ball, can't work bricks.i'm not sure if you'll need see code different classes here's bricks, ball, , main form classes. format right haha. or advice appreciated.
brick class:
class bricktest2 { public int x {get; set;} public int y {get; set;} public int brwidth { get; set; } public int brheight { get; set; } public static int rows = 4; public static int columns = 10; public image bricktest2img; list<rectangle> brick = new list<rectangle>(); public rectangle brickrect2; public rectangle brickrect2 { { return brickrect2; } } public bricktest2() { x = 0; y = 0; brwidth = 32; brheight = 12; bricktest2img = breakout.properties.resources.brickred; brickrect2 = new rectangle(x, y, brwidth, brheight); } public void drawbricktest2(graphics paper) { (int c = 0; c < columns; c++) (int r = 0; r < rows; r++) { rectangle brickrect2 = new rectangle(x + c * brwidth, y + r * brheight, brwidth, brheight); brick.add(brickrect2); paper.drawimage(bricktest2img, brickrect2); switch(r) { case 0: bricktest2img = breakout.properties.resources.brickred; break; case 1: bricktest2img = breakout.properties.resources.brickyellow; break; case 2: bricktest2img = breakout.properties.resources.brickgreen; break; case 3: bricktest2img = breakout.properties.resources.brickblue; break; default: break; } } } } } ball class:
public class ball { public int x, y, width, height; public int xspeed, yspeed; private random randspeed; private image ballimage; private rectangle ballrec; public rectangle ballrec { { return ballrec; } } public ball() { randspeed = new random(); x = 130; y = 130; width = 8; height = 8; xspeed = randspeed.next(5, 7); yspeed = randspeed.next(5, 7); ballimage = breakout.properties.resources.ball2; ballrec = new rectangle(x, y, width, height); } public void drawball(graphics paper) { paper.drawimage(ballimage, ballrec); } public void moveball() { ballrec.x += xspeed; ballrec.y += yspeed; } public void collidewallball() { if (ballrec.x < 0 || ballrec.x > 270) { xspeed *= -1; } if (ballrec.y < 0) { yspeed *= -1; } } public void balldead() { if (ballrec.y > 260) { // yspeed *= -1; testing settings.gmover = true; } } public void collidepaddleball(rectangle paddlerec) { if (paddlerec.intersectswith(ballrec)) { yspeed *= -1; } } public void collidebrickball(rectangle brickrec2) { if (brickrec2.intersectswith(ballrec)) { // desperate attempt work if(brickrec2.x == ballrec.x) { yspeed *= -1; } } } } } main form:
public partial class form1 : form { // initiallizes class files graphics paper; paddle gmpaddle = new paddle(); ball gmball = new ball(); bricktest2 gmbricktest = new bricktest2(); public form1() { // initializes initializecomponent(); gamestart(); } private void gamestart() { // sets new game new settings(); settings.gmover = false; lblgameover1.visible = false; lblgameover2.visible = false; cursor.hide(); } private void form1_paint(object sender, painteventargs e) { paper = e.graphics; if (settings.gmover == true) { // once game over, stops drawing object , brings game on message string gameover1 = "game over!"; string gameover2 = "press enter try again"; lblgameover1.text = gameover1; lblgameover2.text = gameover2; lblgameover1.visible = true; lblgameover2.visible = true; } if(settings.gmover != true) { // draws objects if game not on gmpaddle.drawpaddle(paper); gmball.drawball(paper); gmbricktest.drawbricktest2(paper); } } private void form1_mousemove(object sender, mouseeventargs e) { // calls mouse movement paddle gmpaddle.movepaddle(e.x); this.invalidate(); } private void timer1_tick(object sender, eventargs e) { //updates collision gmball.moveball(); gmball.collidewallball(); gmball.collidepaddleball(gmpaddle.paddlerec); gmball.balldead(); gmball.collidebrickball(gmbricktest.brickrect2); this.invalidate(); } private void form1_keypress(object sender, keypresseventargs e) { // restarts game, still needs work gamestart(); } } }
after looking @ code you've posted, suggest verify if use brickrect2 variable correctly.
in class constructor assign brickrect2 = new rectangle(x, y, brwidth, brheight);, it's (0, 0, 32, 12).
then, in drawbricktest2(graphics paper) method don't draw rectangle directly, instead, shift according row , column variables: rectangle brickrect2 = new rectangle(x + c * brwidth, y + r * brheight, brwidth, brheight);, here use local variable named same field in class.
i cannot see code, call collidebrickball(rectangle brickrec2) method, suppose may try use field class, (0, 0, 32, 12).
if case, tere several methods can use fix this:
- assign appropriate rectangle coordinates
brickrect2field instead of shifting when drawing - don't use
intersectwith(rectangle rect)method , collision comparison manually, considering coordinates shift
Comments
Post a Comment