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Allowing several start positions in a given start layer

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If more than one tile was set in the "start" layer, the last tile would be selected.
Now, the tile is selected at random among available tiles.

Also, a message is issued if no tiles have been put on the "start" layer.
This commit is contained in:
David Négrier 2020-06-03 11:14:04 +02:00
parent dc8481c6a0
commit 69d2fa6944
1 changed files with 20 additions and 5 deletions
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25
front/src/Phaser/Game/GameScene.ts
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@ -136,7 +136,9 @@ export class GameScene extends Phaser.Scene {
this.loadNextGame(layer, this.map.width, this.map.tilewidth, this.map.tileheight);
}
if (layer.type === 'tilelayer' && layer.name === "start") {
this.startUser(layer);
let startPosition = this.startUser(layer);
this.startX = startPosition.x;
this.startY = startPosition.y;
}
if (layer.type === 'objectgroup' && layer.name === 'floorLayer') {
depth = 10000;
@ -252,14 +254,18 @@ export class GameScene extends Phaser.Scene {
/**
* @param layer
*/
private startUser(layer: ITiledMapLayer): void {
private startUser(layer: ITiledMapLayer): PositionInterface {
if (this.initPosition !== undefined) {
this.startX = this.initPosition.x;
this.startY = this.initPosition.y;
return;
return {
x: this.initPosition.x,
y: this.initPosition.y
};
}
let tiles : any = layer.data;
let possibleStartPositions : PositionInterface[] = [];
tiles.forEach((objectKey : number, key: number) => {
if(objectKey === 0){
return;
@ -267,9 +273,18 @@ export class GameScene extends Phaser.Scene {
let y = Math.floor(key / layer.width);
let x = key % layer.width;
this.startX = (x * 32);
this.startY = (y * 32);
possibleStartPositions.push({x: x*32, y: y*32});
});
// Get a value at random amongst allowed values
if (possibleStartPositions.length === 0) {
console.warn('The start layer "'+layer.name+'" for this map is empty.');
return {
x: 0,
y: 0
};
}
// Choose one of the available start positions at random amongst the list of available start positions.
return possibleStartPositions[Math.floor(Math.random() * possibleStartPositions.length)];
}
//todo: in a dedicated class/function?