After reading the article at the following link, I am attempting to create a dynamic curve showing where a bullet intersects with the land in my game before firing. Any suggestions or ideas on how to achieve this would be greatly appreciated. Thank you.
Link to the Article
An alternative solution that requires minimal calculations involves utilizing a placeholder object known as a "tracer bullet."
In simpler terms, create a physics object that does not interact with any elements, "shoot" this object, and at specific intervals, generate a small visual indication of the trajectory taken.
Check out this brief demonstration illustrating this approach:
var setup = {
type: Phaser.AUTO,
width: 536,
height: 183,
scene: {
customize,
renew
},
physics:{
default:'arcade',
arcade:{
gravity:{y: 260},
}},
banner: false
};
let playerObj;
let initialPointer;
let pathItemsGroup;
let lastPoint;
function customize () {
this.add.text(10, 10, 'Shift mouse to target\nPause to view complete path.', {color:'#ffffff'})
let ground = this.add.rectangle(0 , 183, 535, 20, 0x00ff00).setOrigin(0, .5);
pathItemsGroup = this.add.group();
playerObj = this.add.rectangle(30 , 158, 30, 30, 0x1AA840);
playerObj.setDepth(2)
initialPointer = this.add.arc(-10, 0, 5, 0, 2 * Math.PI, true, 0xffffff);
this.physics.add.existing(initialPointer);
this.input.on('pointermove', function (point) {
activatePath(this, playerObj, point)
},this);
}
function renew(time, delta){
let {x, y} = initialPointer
if(!lastPoint || Phaser.Math.Distance.Between(x, y, lastPoint.x, lastPoint.y ) > 20){
let trail = this.add.arc(x, y, 3, 0, 2 * Math.PI, true, 0xcdcdcd);
pathItemsGroup.add(trail);
lastPoint = {x, y};
}
}
function activatePath(scene, playerObj, point){
let pace = 300;
let angle = Phaser.Math.Angle.BetweenPoints(playerObj, point);
pathItemsGroup.clear(true);
initialPointer.setPosition( playerObj.x, playerObj.y );
scene.physics.velocityFromRotation(angle, pace, initialPointer.body.velocity);
}
new Phaser.Game(setup);* {padding:0;margin:0;}<script src="//cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ea9a828b998f98aad9c4dfdfc4d8">[email protected]</a>/dist/phaser.js"></script>If a more concise representation is required, consider reducing the distance or size of the marker points.
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