Remove enemy when bullet hits enemy
- by jordi12100
For my education I have to make a basic game in HTML5 canvas. The game is a shooter game. When you can move left - right and space is shoot. When I shoot the bullets will move up. The enemy moves down. When the bullet hits the enemy the enemy has to dissapear and it will gain +1 score. But the enemy will dissapear after it comes up the screen.
Demo: http://jordikroon.nl/test.html
space = shoot + enemy shows up
This is my code:
for (i=0;i<enemyX.length;i++) {
if(enemyX[i] > canvas.height) {
enemyY.splice(i,1);
enemyX.splice(i,1);
} else {
enemyY[i] += 5;
moveEnemy(enemyX[i],enemyY[i]);
}
}
for (i=0;i<bulletX.length;i++) {
if(bulletY[i] < 0) {
bulletY.splice(i,1);
bulletX.splice(i,1);
} else {
bulletY[i] -= 5;
moveBullet(bulletX[i],bulletY[i]);
for (ib=0;ib<enemyX.length;ib++) {
if(bulletX[i] + 50 < enemyX[ib] ||
enemyX[ib] + 50 < bulletX[i] ||
bulletY[i] + 50 < enemyY[ib] ||
enemyY[ib] + 50 < bulletY[i])
{
++score;
enemyY.splice(i,1);
enemyX.splice(i,1);
}
}
}
}
Objects:
function moveBullet(posX,posY) {
//console.log(posY);
ctx.arc(posX, (posY-150), 10, 0 , 2 * Math.PI, false);
}
function moveEnemy(posX,posY) {
ctx.rect(posX, posY, 50, 50);
ctx.fillStyle = '#ffffff';
ctx.fill();
}
