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feat: worldPos and screenPos can be used as setter now #136

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merged 1 commit into from
Jun 13, 2024
Merged

feat: worldPos and screenPos can be used as setter now #136

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29 changes: 20 additions & 9 deletions src/components/transform/pos.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -46,10 +46,14 @@ export function pos(...args: Vec2Args): PosComp {
},

// Get the position of the object relative to the root
worldPos(this: GameObj<PosComp>): Vec2 {
return this.parent
? this.parent.transform.multVec2(this.pos)
: this.pos;
worldPos(this: GameObj<PosComp>, pos: Vec2 | null = null): Vec2 {
if (pos) {
this.pos = this.pos.add(this.fromWorld(pos));
} else {
return this.parent
? this.parent.transform.multVec2(this.pos)
: this.pos;
}
},

// Transform a local point to a world point
Expand All @@ -67,11 +71,18 @@ export function pos(...args: Vec2Args): PosComp {
},

// Transform a screen point (relative to the camera) to a local point (relative to this)
screenPos(this: GameObj<PosComp | FixedComp>): Vec2 {
const pos = this.worldPos();
return isFixed(this)
? pos
: k.toScreen(pos);
screenPos(
this: GameObj<PosComp | FixedComp>,
pos: Vec2 | null = null,
): Vec2 {
if (pos) {
this.pos = this.pos.add(this.fromScreen(pos));
} else {
const pos = this.worldPos();
return isFixed(this)
? pos
: k.toScreen(pos);
}
},

// Transform a local point (relative to this) to a screen point (relative to the camera)
Expand Down