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Round zoom to 2**(1/4)

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This commit is contained in:
Dimava 2020-05-27 16:23:13 +03:00
parent 27e9e78baf
commit 47c4bbcd23
1 changed files with 5 additions and 3 deletions
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8
src/js/game/camera.js
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@ -343,8 +343,9 @@ export class Camera extends BasicSerializableObject {
mapper.getBinding(KEYMAPPINGS.ingame.mapMoveRight).add(() => (this.keyboardForce.x = 1)); mapper.getBinding(KEYMAPPINGS.ingame.mapMoveRight).add(() => (this.keyboardForce.x = 1));
mapper.getBinding(KEYMAPPINGS.ingame.mapMoveLeft).add(() => (this.keyboardForce.x = -1)); mapper.getBinding(KEYMAPPINGS.ingame.mapMoveLeft).add(() => (this.keyboardForce.x = -1));
mapper.getBinding(KEYMAPPINGS.ingame.mapZoomIn).add(() => (this.desiredZoom = this.zoomLevel * 1.2)); const roundToPow = (v, n)=> Math.pow(2, Math.round(Math.log2(v) * n) / n);
mapper.getBinding(KEYMAPPINGS.ingame.mapZoomOut).add(() => (this.desiredZoom = this.zoomLevel * 0.8)); mapper.getBinding(KEYMAPPINGS.ingame.mapZoomIn).add(() => (this.desiredZoom = roundToPow(this.zoomLevel * 1.2, 4)));
mapper.getBinding(KEYMAPPINGS.ingame.mapZoomOut).add(() => (this.desiredZoom = roundToPow(this.zoomLevel * 0.8, 4)));
mapper.getBinding(KEYMAPPINGS.ingame.centerMap).add(() => this.centerOnMap()); mapper.getBinding(KEYMAPPINGS.ingame.centerMap).add(() => this.centerOnMap());
} }
@ -499,7 +500,8 @@ export class Camera extends BasicSerializableObject {
assert(Number.isFinite(this.zoomLevel), "Got invalid zoom level *after* wheel: " + this.zoomLevel); assert(Number.isFinite(this.zoomLevel), "Got invalid zoom level *after* wheel: " + this.zoomLevel);
this.clampZoomLevel(); this.clampZoomLevel();
this.desiredZoom = null; const roundToPow = (v, n)=> Math.pow(2, Math.round(Math.log2(v) * n) / n);
this.desiredZoom = roundToPow(this.zoomLevel, 4);
return false; return false;
} }