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@ -1603,6 +1603,53 @@ void SetAnimatedMouseCursor(const AnimCursor *table)
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SwitchAnimatedCursor();
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SwitchAnimatedCursor();
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}
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}
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/**
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* Update cursor position on mouse movement.
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* @param x New X position.
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* @param y New Y position.
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* @param queued True, if the OS queues mouse warps after pending mouse movement events.
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* False, if the warp applies instantaneous.
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* @return true, if the OS cursor position should be warped back to this->pos.
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*/
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bool CursorVars::UpdateCursorPosition(int x, int y, bool queued_warp)
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{
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/* Detecting relative mouse movement is somewhat tricky.
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* - There may be multiple mouse move events in the video driver queue (esp. when OpenTTD lags a bit).
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* - When we request warping the mouse position (return true), a mouse move event is appended at the end of the queue.
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*
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* So, when this->fix_at is active, we use the following strategy:
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* - The first movement triggers the warp to reset the mouse position.
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* - Subsequent events have to compute movement relative to the previous event.
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* - The relative movement is finished, when we receive the event matching the warp.
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*/
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if (x == this->pos.x && y == this->pos.y) {
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/* Warp finished. */
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this->queued_warp = false;
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}
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this->delta.x = x - (this->queued_warp ? this->last_position.x : this->pos.x);
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this->delta.y = y - (this->queued_warp ? this->last_position.y : this->pos.y);
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this->last_position.x = x;
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this->last_position.y = y;
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bool need_warp = false;
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if (this->fix_at) {
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if (!this->queued_warp && (this->delta.x != 0 || this->delta.y != 0)) {
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/* Trigger warp. */
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this->queued_warp = queued_warp;
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need_warp = true;
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}
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} else if (this->pos.x != x || this->pos.y != y) {
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this->queued_warp = false; // Cancel warping, we are no longer confining the position.
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this->dirty = true;
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this->pos.x = x;
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this->pos.y = y;
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}
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return need_warp;
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}
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bool ChangeResInGame(int width, int height)
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bool ChangeResInGame(int width, int height)
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{
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{
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return (_screen.width == width && _screen.height == height) || VideoDriver::GetInstance()->ChangeResolution(width, height);
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return (_screen.width == width && _screen.height == height) || VideoDriver::GetInstance()->ChangeResolution(width, height);
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