2
因此,我在處理(編程語言)中創建了遊戲突破,但無法完全找出檢查與蝙蝠碰撞的函數。處理中的突圍(遊戲)
到目前爲止,我所寫的與蝙蝠碰撞的部分只會碰撞底座並將其反向返回。現在,這場比賽是一個永無止境的現象,球只是與牆壁相撞。我想要做的是,把球撞在蝙蝠身上。
哦,這是我的家庭作業,所以只是請指向正確的方向,而不是爲我做。
下面的代碼:
// Basic Breakout game
// Code from Matthre Yee-King
// brick position
float brickX;
float brickY;
// brick width and height
float brickH;
float brickW;
// ball position
float ballX;
float ballY;
// ball diameter
float ballD;
// ball direction
float ballDx;
float ballDy;
// bat position
float batX;
//bat width
float batW;
float batH;
//bat colour
float batB;
void setup() {
size (500, 500, P2D);
// set sizes of game items
brickW = 100;
brickH = 50;
batW = 100;
batH = 25;
ballD = 25;
batB = 255;
// random brick position
brickX = random(0, width - brickW);
brickY = random (0, height/2);
// bat in the centre
batX = (width/2) - (batW/2);
// ball atop bat
ballX = batX + (batW/2);
ballY = height - batH - (ballD/2);
// ball movement
ballDx = random(-5, 5);
ballDy = -5;
rectMode(CORNER);
ellipseMode(CENTER);
}
void draw() {
// check for ball collision
// with top or sides of bat
checkBallAgainstBat();
// check for ball collision with
// left right and top walls
// and bounce
checkBallAgainstWalls();
// check ball against brick
checkBallAgainstBrick();
// move the ball
ballX += ballDx;
ballY += ballDy;
background(0);
// draw the bat
fill(0, 255, 0);
rect(batX, height - batH, batW, batH);
// draw the brick
fill(0, 0, batB);
batB = (batB + 10) % 255;
rect(brickX, brickY, brickW, brickH);
// draw the ball
fill(255, 0, 0);
ellipse(ballX, ballY, ballD, ballD);
if (keyCode == 37) { // left cursor key
batX -= 10;
// keep it on the screen
if (batX < 0) {
batX = 0;
}
}
if (keyCode == 39) {
batX += 10;
if (batX > (width - batW)) {
batX = width - batW;
}
}
}
// when they let go of the key, reset the keyCode
void keyReleased() {
keyCode = -1;
}
// this function checks if the ball has hit the top or sides of the bat and
// updates its direction as appropriate so the ball bouncs off the bat
void checkBallAgainstBat() {
if (ballY + ballD > height - batH) {
ballDy *= -1;
}
}
// this function checks if the ball has hit the brick. It should bounce off
// the brick and return true if so
boolean checkBallAgainstBrick() {
return false;
}
// this function checks if the ball has hit the top, left or right
// walls and update its
// direction as appropriate so the ball bounces off the walls
void checkBallAgainstWalls() {
if (ballX + ballD > width) {
ballDx *= -1;
}
if (ballX - ballD < 0) {
ballDx *= -1;
}
if (ballY - ballD < 0) {
ballDy *= -1;
}
}
謝謝,讓我實施你的提示,如果它的工作,我會接受你的答案。感謝回覆。 – 2012-01-11 15:47:44
謝謝,我測試了你的建議,它的工作原理。 – 2012-01-14 13:56:48