29 lines
893 B
TypeScript
29 lines
893 B
TypeScript
export interface InputState {
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targetX: number
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targetY: number
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smoothX: number
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smoothY: number
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}
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export function createInputState(): InputState {
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return { targetX: 0, targetY: 0, smoothX: 0, smoothY: 0 }
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}
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export function setupInputListeners(state: InputState): void {
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document.addEventListener('mousemove', (e) => {
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state.targetX = (e.clientX / window.innerWidth - 0.5) * 2
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state.targetY = (e.clientY / window.innerHeight - 0.5) * 2
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})
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document.addEventListener('touchmove', (e) => {
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const t = e.touches[0]
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state.targetX = (t.clientX / window.innerWidth - 0.5) * 2
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state.targetY = (t.clientY / window.innerHeight - 0.5) * 2
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}, { passive: true })
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}
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export function smoothInput(state: InputState): void {
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state.smoothX += (state.targetX - state.smoothX) * 0.025
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state.smoothY += (state.targetY - state.smoothY) * 0.025
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}
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