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Zutatensuppe 2020-11-12 19:19:02 +01:00
parent 1e9abebfd3
commit d592cef494
9 changed files with 619 additions and 539 deletions
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48
game/Camera.js
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@ -28,30 +28,26 @@ export default class Camera {
this.y += y / this.zoom
}
zoomOut() {
const newzoom = Math.max(this.zoom - this.zoomStep, this.minZoom)
if (newzoom !== this.zoom) {
// centered zoom
this.x -= ((this.width / this.zoom) - (this.width / newzoom)) / 2
this.y -= ((this.height / this.zoom) - (this.height / newzoom)) / 2
this.zoom = newzoom
return true
}
setZoom(newzoom) {
const zoom = Math.min(Math.max(newzoom, this.minZoom), this.maxZoom)
if (zoom == this.zoom) {
return false
}
// centered zoom
this.x -= Math.round(((this.width / this.zoom) - (this.width / zoom)) / 2)
this.y -= Math.round(((this.height / this.zoom) - (this.height / zoom)) / 2)
this.zoom = zoom
return true
}
zoomOut() {
return this.setZoom(this.zoom - this.zoomStep)
}
zoomIn() {
const newzoom = Math.min(this.zoom + this.zoomStep, this.maxZoom)
if (newzoom !== this.zoom) {
// centered zoom
this.x -= ((this.width / this.zoom) - (this.width / newzoom)) / 2
this.y -= ((this.height / this.zoom) - (this.height / newzoom)) / 2
this.zoom = newzoom
return true
}
return false
return this.setZoom(this.zoom + this.zoomStep)
}
/**
@ -61,8 +57,8 @@ export default class Camera {
*/
viewportToWorld(coord) {
return {
x: (coord.x / this.zoom) - this.x,
y: (coord.y / this.zoom) - this.y,
x: Math.round((coord.x / this.zoom) - this.x),
y: Math.round((coord.y / this.zoom) - this.y),
}
}
@ -73,15 +69,15 @@ export default class Camera {
*/
worldToViewport(coord) {
return {
x: (coord.x + this.x) * this.zoom,
y: (coord.y + this.y) * this.zoom,
x: Math.round((coord.x + this.x) * this.zoom),
y: Math.round((coord.y + this.y) * this.zoom),
}
}
worldDimToViewport(dim) {
return {
w: dim.w * this.zoom,
h: dim.h * this.zoom,
w: Math.round(dim.w * this.zoom),
h: Math.round(dim.h * this.zoom),
}
}
}